Merge pull request #952 from cabaletta/commands

Commands

.gitignore

@@ -14,6 +14,8 @@ classes/
 # IntelliJ Files
 .idea/
 *.iml
+*.ipr
+*.iws
 /logs/
 
 # Copyright Files

src/api/java/baritone/api/BaritoneAPI.java

@@ -34,12 +34,12 @@ public final class BaritoneAPI {
     private static final Settings settings;
 
     static {
+        settings = new Settings();
+        SettingsUtil.readAndApply(settings);
+
         ServiceLoader<IBaritoneProvider> baritoneLoader = ServiceLoader.load(IBaritoneProvider.class);
         Iterator<IBaritoneProvider> instances = baritoneLoader.iterator();
         provider = instances.next();
-
-        settings = new Settings();
-        SettingsUtil.readAndApply(settings);
     }
 
     public static IBaritoneProvider getProvider() {

src/api/java/baritone/api/IBaritone.java

@@ -23,8 +23,10 @@ import baritone.api.cache.IWorldProvider;
 import baritone.api.event.listener.IEventBus;
 import baritone.api.pathing.calc.IPathingControlManager;
 import baritone.api.process.*;
+import baritone.api.selection.ISelectionManager;
 import baritone.api.utils.IInputOverrideHandler;
 import baritone.api.utils.IPlayerContext;
+import baritone.api.utils.command.manager.ICommandManager;
 
 /**
  * @author Brady
@@ -32,15 +34,6 @@ import baritone.api.utils.IPlayerContext;
  */
 public interface IBaritone {
 
-    /**
-     * Call as soon as Minecraft is ready, initializes all of the processes, behaviors, etc. This will
-     * only effectively be ran once, any additional calls are redundant because the initialization state
-     * is saved.
-     * <p>
-     * Or whenever your overeager utility client wants.
-     */
-    void init();
-
     /**
      * @return The {@link IPathingBehavior} instance
      * @see IPathingBehavior
@@ -128,6 +121,18 @@ public interface IBaritone {
      */
     IEventBus getGameEventHandler();
 
+    /**
+     * @return The {@link ISelectionManager} instance
+     * @see ISelectionManager
+     */
+    ISelectionManager getSelectionManager();
+
+    /**
+     * @return The {@link ICommandManager} instance
+     * @see ICommandManager
+     */
+    ICommandManager getCommandManager();
+
     /**
      * Open click
      */

src/api/java/baritone/api/Settings.java

@@ -30,8 +30,8 @@ import java.awt.*;
 import java.lang.reflect.Field;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 import java.util.function.Consumer;
 
 /**
@@ -495,15 +495,20 @@ public final class Settings {
     public final Setting<Boolean> chatControl = new Setting<>(true);
 
     /**
-     * A second override over chatControl to force it on
+     * Some clients like Impact try to force chatControl to off, so here's a second setting to do it anyway
      */
-    public final Setting<Boolean> removePrefix = new Setting<>(false);
+    public final Setting<Boolean> chatControlAnyway = new Setting<>(false);
 
     /**
      * Render the path
      */
     public final Setting<Boolean> renderPath = new Setting<>(true);
 
+    /**
+     * Render the path as a line instead of a frickin thingy
+     */
+    public final Setting<Boolean> renderPathAsLine = new Setting<>(false);
+
     /**
      * Render the goal
      */
@@ -604,21 +609,41 @@ public final class Settings {
     public final Setting<Float> cachedChunksOpacity = new Setting<>(0.5f);
 
     /**
-     * Whether or not to use the "#" command prefix
+     * Whether or not to allow you to run Baritone commands with the prefix
      */
     public final Setting<Boolean> prefixControl = new Setting<>(true);
 
+    /**
+     * The command prefix for chat control
+     */
+    public final Setting<String> prefix = new Setting<>("#");
+
+    /**
+     * Use a short Baritone prefix [B] instead of [Baritone] when logging to chat
+     */
+    public final Setting<Boolean> shortBaritonePrefix = new Setting<>(false);
+
+    /**
+     * Echo commands to chat when they are run
+     */
+    public final Setting<Boolean> echoCommands = new Setting<>(true);
+
+    /**
+     * Censor coordinates in goals and block positions
+     */
+    public final Setting<Boolean> censorCoordinates = new Setting<>(false);
+
+    /**
+     * Censor arguments to ran commands, to hide, for example, coordinates to #goal
+     */
+    public final Setting<Boolean> censorRanCommands = new Setting<>(false);
+
     /**
      * Always prefer silk touch tools over regular tools. This will not sacrifice speed, but it will always prefer silk
      * touch tools over other tools of the same speed. This includes always choosing ANY silk touch tool over your hand.
      */
     public final Setting<Boolean> preferSilkTouch = new Setting<>(false);
 
-    /*
-     * Censor coordinates in goals and block positions
-     */
-    public final Setting<Boolean> censorCoordinates = new Setting<>(false);
-
     /**
      * Don't stop walking forward when you need to break blocks in your way
      */
@@ -938,6 +963,51 @@ public final class Settings {
      */
     public final Setting<Color> colorGoalBox = new Setting<>(Color.GREEN);
 
+    /**
+     * The color of the goal box when it's inverted
+     */
+    public final Setting<Color> colorInvertedGoalBox = new Setting<>(Color.RED);
+
+    /**
+     * The color of all selections
+     */
+    public final Setting<Color> colorSelection = new Setting<>(Color.CYAN);
+
+    /**
+     * The color of the selection pos 1
+     */
+    public final Setting<Color> colorSelectionPos1 = new Setting<>(Color.BLACK);
+
+    /**
+     * The color of the selection pos 2
+     */
+    public final Setting<Color> colorSelectionPos2 = new Setting<>(Color.ORANGE);
+
+    /**
+     * The opacity of the selection. 0 is completely transparent, 1 is completely opaque
+     */
+    public final Setting<Float> selectionOpacity = new Setting<>(.5f);
+
+    /**
+     * Line width of the goal when rendered, in pixels
+     */
+    public final Setting<Float> selectionLineWidth = new Setting<>(2F);
+
+    /**
+     * Render selections
+     */
+    public final Setting<Boolean> renderSelection = new Setting<>(true);
+
+    /**
+     * Ignore depth when rendering selections
+     */
+    public final Setting<Boolean> renderSelectionIgnoreDepth = new Setting<>(true);
+
+    /**
+     * Render selection corners
+     */
+    public final Setting<Boolean> renderSelectionCorners = new Setting<>(true);
+
 
     /**
      * A map of lowercase setting field names to their respective setting
@@ -952,6 +1022,7 @@ public final class Settings {
     public final Map<Setting<?>, Type> settingTypes;
 
     public final class Setting<T> {
+
         public T value;
         public final T defaultValue;
         private String name;

src/api/java/baritone/api/accessor/IGuiScreen.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.accessor;
+
+import java.net.URI;
+
+public interface IGuiScreen {
+
+    void openLink(URI url);
+}

src/api/java/baritone/api/accessor/IItemStack.java

@@ -0,0 +1,23 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.accessor;
+
+public interface IItemStack {
+
+    int getBaritoneHash();
+}

src/api/java/baritone/api/behavior/IPathingBehavior.java

@@ -64,9 +64,17 @@ public interface IPathingBehavior extends IBehavior {
     Goal getGoal();
 
     /**
-     * @return Whether or not a path is currently being executed.
+     * @return Whether or not a path is currently being executed. This will be false if there's currently a pause.
+     * @see #hasPath()
      */
-    default boolean isPathing() {
+    boolean isPathing();
+
+    /**
+     * @return If there is a current path. Note that the path is not necessarily being executed, for example when there
+     * is a pause in effect.
+     * @see #isPathing()
+     */
+    default boolean hasPath() {
         return getCurrent() != null;
     }
 

src/api/java/baritone/api/cache/IWaypoint.java

@@ -17,12 +17,9 @@
 
 package baritone.api.cache;
 
-import net.minecraft.util.math.BlockPos;
-import org.apache.commons.lang3.ArrayUtils;
+import baritone.api.utils.BetterBlockPos;
 
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
+import java.util.*;
 
 /**
  * A marker for a position in the world.
@@ -60,7 +57,7 @@ public interface IWaypoint {
      *
      * @return The block position of this waypoint
      */
-    BlockPos getLocation();
+    BetterBlockPos getLocation();
 
     enum Tag {
 
@@ -92,20 +89,48 @@ public interface IWaypoint {
         /**
          * The names for the tag, anything that the tag can be referred to as.
          */
-        private final String[] names;
+        public final String[] names;
 
         Tag(String... names) {
             this.names = names;
         }
 
         /**
-         * Finds a tag from one of the names that could be used to identify said tag.
-         *
-         * @param name The name of the tag
-         * @return The tag, if one is found, otherwise, {@code null}
+         * @return A name that can be passed to {@link #getByName(String)} to retrieve this tag
          */
-        public static Tag fromString(String name) {
-            return TAG_LIST.stream().filter(tag -> ArrayUtils.contains(tag.names, name.toLowerCase())).findFirst().orElse(null);
+        public String getName() {
+            return names[0];
+        }
+
+        /**
+         * Gets a tag by one of its names.
+         *
+         * @param name The name to search for.
+         * @return The tag, if found, or null.
+         */
+        public static Tag getByName(String name) {
+            for (Tag action : Tag.values()) {
+                for (String alias : action.names) {
+                    if (alias.equalsIgnoreCase(name)) {
+                        return action;
+                    }
+                }
+            }
+
+            return null;
+        }
+
+        /**
+         * @return All tag names.
+         */
+        public static String[] getAllNames() {
+            Set<String> names = new HashSet<>();
+
+            for (Tag tag : Tag.values()) {
+                names.addAll(Arrays.asList(tag.names));
+            }
+
+            return names.toArray(new String[0]);
         }
     }
 }

src/api/java/baritone/api/cache/IWorldScanner.java

@@ -17,6 +17,7 @@
 
 package baritone.api.cache;
 
+import baritone.api.utils.BlockOptionalMetaLookup;
 import baritone.api.utils.IPlayerContext;
 import net.minecraft.block.Block;
 import net.minecraft.util.math.BlockPos;
@@ -33,28 +34,53 @@ public interface IWorldScanner {
     /**
      * Scans the world, up to the specified max chunk radius, for the specified blocks.
      *
-     * @param ctx             The {@link IPlayerContext} containing player and world info that the
-     *                        scan is based upon
-     * @param blocks          The blocks to scan for
+     * @param ctx             The {@link IPlayerContext} containing player and world info that the scan is based upon
+     * @param filter          The blocks to scan for
      * @param max             The maximum number of blocks to scan before cutoff
-     * @param yLevelThreshold If a block is found within this Y level, the current result will be
-     *                        returned, if the value is negative, then this condition doesn't apply.
+     * @param yLevelThreshold If a block is found within this Y level, the current result will be returned, if the value
+     *                        is negative, then this condition doesn't apply.
      * @param maxSearchRadius The maximum chunk search radius
      * @return The matching block positions
      */
-    List<BlockPos> scanChunkRadius(IPlayerContext ctx, List<Block> blocks, int max, int yLevelThreshold, int maxSearchRadius);
+    List<BlockPos> scanChunkRadius(IPlayerContext ctx, BlockOptionalMetaLookup filter, int max, int yLevelThreshold, int maxSearchRadius);
+
+    default List<BlockPos> scanChunkRadius(IPlayerContext ctx, List<Block> filter, int max, int yLevelThreshold, int maxSearchRadius) {
+        return scanChunkRadius(ctx, new BlockOptionalMetaLookup(filter.toArray(new Block[0])), max, yLevelThreshold, maxSearchRadius);
+    }
 
     /**
      * Scans a single chunk for the specified blocks.
      *
-     * @param ctx             The {@link IPlayerContext} containing player and world info that the
-     *                        scan is based upon
+     * @param ctx             The {@link IPlayerContext} containing player and world info that the scan is based upon
+     * @param filter          The blocks to scan for
+     * @param pos             The position of the target chunk
+     * @param max             The maximum number of blocks to scan before cutoff
+     * @param yLevelThreshold If a block is found within this Y level, the current result will be returned, if the value
+     *                        is negative, then this condition doesn't apply.
+     * @return The matching block positions
+     */
+    List<BlockPos> scanChunk(IPlayerContext ctx, BlockOptionalMetaLookup filter, ChunkPos pos, int max, int yLevelThreshold);
+
+    /**
+     * Scans a single chunk for the specified blocks.
+     *
+     * @param ctx             The {@link IPlayerContext} containing player and world info that the scan is based upon
      * @param blocks          The blocks to scan for
      * @param pos             The position of the target chunk
      * @param max             The maximum number of blocks to scan before cutoff
-     * @param yLevelThreshold If a block is found within this Y level, the current result will be
-     *                        returned, if the value is negative, then this condition doesn't apply.
+     * @param yLevelThreshold If a block is found within this Y level, the current result will be returned, if the value
+     *                        is negative, then this condition doesn't apply.
      * @return The matching block positions
      */
-    List<BlockPos> scanChunk(IPlayerContext ctx, List<Block> blocks, ChunkPos pos, int max, int yLevelThreshold);
+    default List<BlockPos> scanChunk(IPlayerContext ctx, List<Block> blocks, ChunkPos pos, int max, int yLevelThreshold) {
+        return scanChunk(ctx, new BlockOptionalMetaLookup(blocks), pos, max, yLevelThreshold);
+    }
+
+    /**
+     * Repacks 40 chunks around the player.
+     *
+     * @param ctx The player context for that player.
+     * @return The number of chunks queued for repacking.
+     */
+    int repack(IPlayerContext ctx);
 }

src/api/java/baritone/api/cache/Waypoint.java

@@ -18,7 +18,6 @@
 package baritone.api.cache;
 
 import baritone.api.utils.BetterBlockPos;
-import net.minecraft.util.math.BlockPos;
 
 import java.util.Date;
 
@@ -32,9 +31,9 @@ public class Waypoint implements IWaypoint {
     private final String name;
     private final Tag tag;
     private final long creationTimestamp;
-    private final BlockPos location;
+    private final BetterBlockPos location;
 
-    public Waypoint(String name, Tag tag, BlockPos location) {
+    public Waypoint(String name, Tag tag, BetterBlockPos location) {
         this(name, tag, location, System.currentTimeMillis());
     }
 
@@ -47,7 +46,7 @@ public class Waypoint implements IWaypoint {
      * @param location          The waypoint location
      * @param creationTimestamp When the waypoint was created
      */
-    public Waypoint(String name, Tag tag, BlockPos location, long creationTimestamp) {
+    public Waypoint(String name, Tag tag, BetterBlockPos location, long creationTimestamp) {
         this.name = name;
         this.tag = tag;
         this.location = location;
@@ -56,7 +55,7 @@ public class Waypoint implements IWaypoint {
 
     @Override
     public int hashCode() {
-        return name.hashCode() + tag.hashCode() + location.hashCode(); //lol
+        return name.hashCode() ^ tag.hashCode() ^ location.hashCode() ^ Long.hashCode(creationTimestamp);
     }
 
     @Override
@@ -75,17 +74,17 @@ public class Waypoint implements IWaypoint {
     }
 
     @Override
-    public BlockPos getLocation() {
+    public BetterBlockPos getLocation() {
         return this.location;
     }
 
     @Override
     public String toString() {
         return String.format(
-            "%s %s %s",
-            name,
-            BetterBlockPos.from(location).toString(),
-            new Date(creationTimestamp).toString()
+                "%s %s %s",
+                name,
+                BetterBlockPos.from(location).toString(),
+                new Date(creationTimestamp).toString()
         );
     }
 

src/api/java/baritone/api/event/events/TabCompleteEvent.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.event.events;
+
+import baritone.api.event.events.type.Cancellable;
+import baritone.api.event.events.type.Overrideable;
+
+/**
+ * @author LoganDark
+ */
+public abstract class TabCompleteEvent extends Cancellable {
+
+    public final Overrideable<String> prefix;
+    public final Overrideable<String[]> completions;
+
+    TabCompleteEvent(String prefix, String[] completions) {
+        this.prefix = new Overrideable<>(prefix);
+        this.completions = new Overrideable<>(completions);
+    }
+
+    public boolean wasModified() {
+        return prefix.wasModified() || completions.wasModified();
+    }
+
+    public static final class Pre extends TabCompleteEvent {
+
+        public Pre(String prefix) {
+            super(prefix, null);
+        }
+    }
+
+    public static final class Post extends TabCompleteEvent {
+
+        public Post(String prefix, String[] completions) {
+            super(prefix, completions);
+        }
+    }
+}

src/api/java/baritone/api/event/events/type/Overrideable.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.event.events.type;
+
+/**
+ * @author LoganDark
+ */
+public class Overrideable<T> {
+
+    private T value;
+    private boolean modified;
+
+    public Overrideable(T current) {
+        value = current;
+    }
+
+    public T get() {
+        return value;
+    }
+
+    public void set(T newValue) {
+        value = newValue;
+        modified = true;
+    }
+
+    public boolean wasModified() {
+        return modified;
+    }
+
+    @Override
+    public String toString() {
+        return String.format(
+                "Overrideable{modified=%b,value=%s}",
+                modified,
+                value.toString()
+        );
+    }
+}

src/api/java/baritone/api/event/listener/AbstractGameEventListener.java

@@ -39,6 +39,12 @@ public interface AbstractGameEventListener extends IGameEventListener {
     @Override
     default void onSendChatMessage(ChatEvent event) {}
 
+    @Override
+    default void onPreTabComplete(TabCompleteEvent.Pre event) {}
+
+    @Override
+    default void onPostTabComplete(TabCompleteEvent.Post event) {}
+
     @Override
     default void onChunkEvent(ChunkEvent event) {}
 

src/api/java/baritone/api/event/listener/IGameEventListener.java

@@ -57,6 +57,21 @@ public interface IGameEventListener {
      */
     void onSendChatMessage(ChatEvent event);
 
+    /**
+     * Runs whenever the client player tries to tab complete in chat.
+     *
+     * @param event The event
+     */
+    void onPreTabComplete(TabCompleteEvent.Pre event);
+
+    /**
+     * Runs whenever the client player tries to tab complete in chat once completions have been recieved from the
+     * server. This will only be called if the {@link TabCompleteEvent#cancel()} method was not called.
+     *
+     * @param event The event
+     */
+    void onPostTabComplete(TabCompleteEvent.Post event);
+
     /**
      * Runs before and after whenever a chunk is either loaded, unloaded, or populated.
      *

src/api/java/baritone/api/pathing/goals/GoalBlock.java

@@ -69,10 +69,10 @@ public class GoalBlock implements Goal, IGoalRenderPos {
     @Override
     public String toString() {
         return String.format(
-            "GoalBlock{x=%s,y=%s,z=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z)
+                "GoalBlock{x=%s,y=%s,z=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z)
         );
     }
 

src/api/java/baritone/api/pathing/goals/GoalGetToBlock.java

@@ -63,10 +63,10 @@ public class GoalGetToBlock implements Goal, IGoalRenderPos {
     @Override
     public String toString() {
         return String.format(
-            "GoalGetToBlock{x=%s,y=%s,z=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z)
+                "GoalGetToBlock{x=%s,y=%s,z=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z)
         );
     }
 }

src/api/java/baritone/api/pathing/goals/GoalInverted.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.pathing.goals;
+
+/**
+ * Invert any goal.
+ * <p>
+ * In the old chat control system, #invert just tried to pick a {@link GoalRunAway} that <i>effectively</i> inverted the
+ * current goal. This goal just reverses the heuristic to act as a TRUE invert. Inverting a Y level? Baritone tries to
+ * get away from that Y level. Inverting a GoalBlock? Baritone will try to make distance whether it's in the X, Y or Z
+ * directions. And of course, you can always invert a GoalXZ.
+ *
+ * @author LoganDark
+ */
+public class GoalInverted implements Goal {
+
+    public final Goal origin;
+
+    public GoalInverted(Goal origin) {
+        this.origin = origin;
+    }
+
+    @Override
+    public boolean isInGoal(int x, int y, int z) {
+        return false;
+    }
+
+    @Override
+    public double heuristic(int x, int y, int z) {
+        return -origin.heuristic(x, y, z);
+    }
+
+    @Override
+    public String toString() {
+        return String.format("GoalInverted{%s}", origin.toString());
+    }
+}

src/api/java/baritone/api/pathing/goals/GoalNear.java

@@ -22,6 +22,7 @@ import baritone.api.utils.interfaces.IGoalRenderPos;
 import net.minecraft.util.math.BlockPos;
 
 public class GoalNear implements Goal, IGoalRenderPos {
+
     private final int x;
     private final int y;
     private final int z;
@@ -58,11 +59,11 @@ public class GoalNear implements Goal, IGoalRenderPos {
     @Override
     public String toString() {
         return String.format(
-            "GoalNear{x=%s, y=%s, z=%s, rangeSq=%d}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z),
-            rangeSq
+                "GoalNear{x=%s, y=%s, z=%s, rangeSq=%d}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z),
+                rangeSq
         );
     }
 }

src/api/java/baritone/api/pathing/goals/GoalRunAway.java

@@ -84,9 +84,9 @@ public class GoalRunAway implements Goal {
     public String toString() {
         if (maintainY != null) {
             return String.format(
-                "GoalRunAwayFromMaintainY y=%s, %s",
-                SettingsUtil.maybeCensor(maintainY),
-                Arrays.asList(from)
+                    "GoalRunAwayFromMaintainY y=%s, %s",
+                    SettingsUtil.maybeCensor(maintainY),
+                    Arrays.asList(from)
             );
         } else {
             return "GoalRunAwayFrom" + Arrays.asList(from);

src/api/java/baritone/api/pathing/goals/GoalStrictDirection.java

@@ -25,6 +25,7 @@ import net.minecraft.util.math.BlockPos;
  * Dig a tunnel in a certain direction, but if you have to deviate from the path, go back to where you started
  */
 public class GoalStrictDirection implements Goal {
+
     public final int x;
     public final int y;
     public final int z;
@@ -66,12 +67,12 @@ public class GoalStrictDirection implements Goal {
     @Override
     public String toString() {
         return String.format(
-            "GoalStrictDirection{x=%s, y=%s, z=%s, dx=%s, dz=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z),
-            SettingsUtil.maybeCensor(dx),
-            SettingsUtil.maybeCensor(dz)
+                "GoalStrictDirection{x=%s, y=%s, z=%s, dx=%s, dz=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z),
+                SettingsUtil.maybeCensor(dx),
+                SettingsUtil.maybeCensor(dz)
         );
     }
 }

src/api/java/baritone/api/pathing/goals/GoalTwoBlocks.java

@@ -75,10 +75,10 @@ public class GoalTwoBlocks implements Goal, IGoalRenderPos {
     @Override
     public String toString() {
         return String.format(
-            "GoalTwoBlocks{x=%s,y=%s,z=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z)
+                "GoalTwoBlocks{x=%s,y=%s,z=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z)
         );
     }
 }

src/api/java/baritone/api/pathing/goals/GoalXZ.java

@@ -18,6 +18,7 @@
 package baritone.api.pathing.goals;
 
 import baritone.api.BaritoneAPI;
+import baritone.api.utils.BetterBlockPos;
 import baritone.api.utils.SettingsUtil;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.Vec3d;
@@ -46,6 +47,11 @@ public class GoalXZ implements Goal {
         this.z = z;
     }
 
+    public GoalXZ(BetterBlockPos pos) {
+        this.x = pos.x;
+        this.z = pos.z;
+    }
+
     @Override
     public boolean isInGoal(int x, int y, int z) {
         return x == this.x && z == this.z;
@@ -61,9 +67,9 @@ public class GoalXZ implements Goal {
     @Override
     public String toString() {
         return String.format(
-            "GoalXZ{x=%s,z=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(z)
+                "GoalXZ{x=%s,z=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(z)
         );
     }
 
@@ -92,7 +98,7 @@ public class GoalXZ implements Goal {
         float theta = (float) Math.toRadians(yaw);
         double x = origin.x - MathHelper.sin(theta) * distance;
         double z = origin.z + MathHelper.cos(theta) * distance;
-        return new GoalXZ((int) x, (int) z);
+        return new GoalXZ(MathHelper.floor(x), MathHelper.floor(z));
     }
 
     public int getX() {

src/api/java/baritone/api/pathing/goals/GoalYLevel.java

@@ -61,8 +61,8 @@ public class GoalYLevel implements Goal, ActionCosts {
     @Override
     public String toString() {
         return String.format(
-            "GoalYLevel{y=%s}",
-            SettingsUtil.maybeCensor(level)
+                "GoalYLevel{y=%s}",
+                SettingsUtil.maybeCensor(level)
         );
     }
 }

src/api/java/baritone/api/process/IBuilderProcess.java

@@ -18,11 +18,13 @@
 package baritone.api.process;
 
 import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3i;
 
 import java.io.File;
+import java.util.List;
 
 /**
  * @author Brady
@@ -58,7 +60,16 @@ public interface IBuilderProcess extends IBaritoneProcess {
 
     void pause();
 
+    boolean isPaused();
+
     void resume();
 
     void clearArea(BlockPos corner1, BlockPos corner2);
+
+    /**
+     * @return A list of block states that are estimated to be placeable by this builder process. You can use this in
+     * schematics, for example, to pick a state that the builder process will be happy with, because any variation will
+     * cause it to give up. This is updated every tick, but only while the builder process is active.
+     */
+    List<IBlockState> getApproxPlaceable();
 }

src/api/java/baritone/api/process/IExploreProcess.java

@@ -20,6 +20,7 @@ package baritone.api.process;
 import java.nio.file.Path;
 
 public interface IExploreProcess extends IBaritoneProcess {
+
     void explore(int centerX, int centerZ);
 
     void applyJsonFilter(Path path, boolean invert) throws Exception;

src/api/java/baritone/api/process/IFarmProcess.java

@@ -18,5 +18,6 @@
 package baritone.api.process;
 
 public interface IFarmProcess extends IBaritoneProcess {
+
     void farm();
 }

src/api/java/baritone/api/process/IMineProcess.java

@@ -17,8 +17,12 @@
 
 package baritone.api.process;
 
+import baritone.api.utils.BlockOptionalMeta;
+import baritone.api.utils.BlockOptionalMetaLookup;
 import net.minecraft.block.Block;
 
+import java.util.stream.Stream;
+
 /**
  * @author Brady
  * @since 9/23/2018
@@ -28,9 +32,9 @@ public interface IMineProcess extends IBaritoneProcess {
     /**
      * Begin to search for and mine the specified blocks until
      * the number of specified items to get from the blocks that
-     * are mined. This is based on the first target block to mine.
+     * are mined.
      *
-     * @param quantity The number of items to get from blocks mined
+     * @param quantity The total number of items to get
      * @param blocks   The blocks to mine
      */
     void mineByName(int quantity, String... blocks);
@@ -41,9 +45,18 @@ public interface IMineProcess extends IBaritoneProcess {
      * are mined. This is based on the first target block to mine.
      *
      * @param quantity The number of items to get from blocks mined
-     * @param blocks   The blocks to mine
+     * @param filter   The blocks to mine
      */
-    void mine(int quantity, Block... blocks);
+    void mine(int quantity, BlockOptionalMetaLookup filter);
+
+    /**
+     * Begin to search for and mine the specified blocks.
+     *
+     * @param filter The blocks to mine
+     */
+    default void mine(BlockOptionalMetaLookup filter) {
+        mine(0, filter);
+    }
 
     /**
      * Begin to search for and mine the specified blocks.
@@ -54,6 +67,38 @@ public interface IMineProcess extends IBaritoneProcess {
         mineByName(0, blocks);
     }
 
+    /**
+     * Begin to search for and mine the specified blocks.
+     *
+     * @param boms The blocks to mine
+     */
+    default void mine(int quantity, BlockOptionalMeta... boms) {
+        mine(quantity, new BlockOptionalMetaLookup(boms));
+    }
+
+    /**
+     * Begin to search for and mine the specified blocks.
+     *
+     * @param boms The blocks to mine
+     */
+    default void mine(BlockOptionalMeta... boms) {
+        mine(0, boms);
+    }
+
+    /**
+     * Begin to search for and mine the specified blocks.
+     *
+     * @param quantity The total number of items to get
+     * @param blocks   The blocks to mine
+     */
+    default void mine(int quantity, Block... blocks) {
+        mine(quantity, new BlockOptionalMetaLookup(
+                Stream.of(blocks)
+                        .map(BlockOptionalMeta::new)
+                        .toArray(BlockOptionalMeta[]::new)
+        ));
+    }
+
     /**
      * Begin to search for and mine the specified blocks.
      *

src/api/java/baritone/api/schematic/AbstractSchematic.java

@@ -0,0 +1,48 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+
+public abstract class AbstractSchematic implements ISchematic {
+
+    protected int x;
+    protected int y;
+    protected int z;
+
+    public AbstractSchematic(int x, int y, int z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    @Override
+    public int widthX() {
+        return x;
+    }
+
+    @Override
+    public int heightY() {
+        return y;
+    }
+
+    @Override
+    public int lengthZ() {
+        return z;
+    }
+}

src/api/java/baritone/api/schematic/CompositeSchematic.java

@@ -0,0 +1,75 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CompositeSchematic extends AbstractSchematic {
+
+    private final List<CompositeSchematicEntry> schematics;
+    private CompositeSchematicEntry[] schematicArr;
+
+    private void recalcArr() {
+        schematicArr = schematics.toArray(new CompositeSchematicEntry[0]);
+        for (CompositeSchematicEntry entry : schematicArr) {
+            this.x = Math.max(x, entry.x + entry.schematic.widthX());
+            this.y = Math.max(y, entry.y + entry.schematic.heightY());
+            this.z = Math.max(z, entry.z + entry.schematic.lengthZ());
+        }
+    }
+
+    public CompositeSchematic(int x, int y, int z) {
+        super(x, y, z);
+        schematics = new ArrayList<>();
+        recalcArr();
+    }
+
+    public void put(ISchematic extra, int x, int y, int z) {
+        schematics.add(new CompositeSchematicEntry(extra, x, y, z));
+        recalcArr();
+    }
+
+    private CompositeSchematicEntry getSchematic(int x, int y, int z, IBlockState currentState) {
+        for (CompositeSchematicEntry entry : schematicArr) {
+            if (x >= entry.x && y >= entry.y && z >= entry.z &&
+                    entry.schematic.inSchematic(x - entry.x, y - entry.y, z - entry.z, currentState)) {
+                return entry;
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public boolean inSchematic(int x, int y, int z, IBlockState currentState) {
+        CompositeSchematicEntry entry = getSchematic(x, y, z, currentState);
+        return entry != null && entry.schematic.inSchematic(x - entry.x, y - entry.y, z - entry.z, currentState);
+    }
+
+    @Override
+    public IBlockState desiredState(int x, int y, int z, IBlockState current, List<IBlockState> approxPlaceable) {
+        CompositeSchematicEntry entry = getSchematic(x, y, z, current);
+        if (entry == null) {
+            throw new IllegalStateException("couldn't find schematic for this position");
+        }
+        return entry.schematic.desiredState(x - entry.x, y - entry.y, z - entry.z, current, approxPlaceable);
+    }
+}

src/api/java/baritone/api/schematic/CompositeSchematicEntry.java

@@ -0,0 +1,35 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+
+public class CompositeSchematicEntry {
+
+    public final ISchematic schematic;
+    public final int x;
+    public final int y;
+    public final int z;
+
+    public CompositeSchematicEntry(ISchematic schematic, int x, int y, int z) {
+        this.schematic = schematic;
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+}

src/api/java/baritone/api/schematic/FillSchematic.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.BlockOptionalMeta;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.init.Blocks;
+
+import java.util.List;
+
+public class FillSchematic extends AbstractSchematic {
+
+    private final BlockOptionalMeta bom;
+
+    public FillSchematic(int x, int y, int z, BlockOptionalMeta bom) {
+        super(x, y, z);
+        this.bom = bom;
+    }
+
+    public BlockOptionalMeta getBom() {
+        return bom;
+    }
+
+    @Override
+    public IBlockState desiredState(int x, int y, int z, IBlockState current, List<IBlockState> approxPlaceable) {
+        if (bom.matches(current)) {
+            return current;
+        } else if (current.getBlock() != Blocks.AIR) {
+            return Blocks.AIR.getDefaultState();
+        }
+        for (IBlockState placeable : approxPlaceable) {
+            if (bom.matches(placeable)) {
+                return placeable;
+            }
+        }
+        return bom.getAnyBlockState();
+    }
+}

src/api/java/baritone/api/schematic/MaskSchematic.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
+
+import java.util.List;
+
+public abstract class MaskSchematic extends AbstractSchematic {
+
+    private final ISchematic schematic;
+
+    public MaskSchematic(ISchematic schematic) {
+        super(schematic.widthX(), schematic.heightY(), schematic.lengthZ());
+        this.schematic = schematic;
+    }
+
+    protected abstract boolean partOfMask(int x, int y, int z, IBlockState currentState);
+
+    @Override
+    public boolean inSchematic(int x, int y, int z, IBlockState currentState) {
+        return schematic.inSchematic(x, y, z, currentState) && partOfMask(x, y, z, currentState);
+    }
+
+    @Override
+    public IBlockState desiredState(int x, int y, int z, IBlockState current, List<IBlockState> approxPlaceable) {
+        return schematic.desiredState(x, y, z, current, approxPlaceable);
+    }
+}

src/api/java/baritone/api/schematic/ReplaceSchematic.java

@@ -0,0 +1,42 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.BlockOptionalMetaLookup;
+import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
+
+public class ReplaceSchematic extends MaskSchematic {
+
+    private final BlockOptionalMetaLookup filter;
+    private final Boolean[][][] cache;
+
+    public ReplaceSchematic(ISchematic schematic, BlockOptionalMetaLookup filter) {
+        super(schematic);
+        this.filter = filter;
+        this.cache = new Boolean[widthX()][heightY()][lengthZ()];
+    }
+
+    @Override
+    protected boolean partOfMask(int x, int y, int z, IBlockState currentState) {
+        if (cache[x][y][z] == null) {
+            cache[x][y][z] = filter.has(currentState);
+        }
+        return cache[x][y][z];
+    }
+}

src/api/java/baritone/api/schematic/ShellSchematic.java

@@ -0,0 +1,33 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
+
+public class ShellSchematic extends MaskSchematic {
+
+    public ShellSchematic(ISchematic schematic) {
+        super(schematic);
+    }
+
+    @Override
+    protected boolean partOfMask(int x, int y, int z, IBlockState currentState) {
+        return x == 0 || y == 0 || z == 0 || x == widthX() - 1 || y == heightY() - 1 || z == lengthZ() - 1;
+    }
+}

src/api/java/baritone/api/schematic/WallsSchematic.java

@@ -0,0 +1,33 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.schematic;
+
+import baritone.api.utils.ISchematic;
+import net.minecraft.block.state.IBlockState;
+
+public class WallsSchematic extends MaskSchematic {
+
+    public WallsSchematic(ISchematic schematic) {
+        super(schematic);
+    }
+
+    @Override
+    protected boolean partOfMask(int x, int y, int z, IBlockState currentState) {
+        return x == 0 || z == 0 || x == widthX() - 1 || z == lengthZ() - 1;
+    }
+}

src/api/java/baritone/api/selection/ISelection.java

@@ -0,0 +1,91 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.selection;
+
+import baritone.api.utils.BetterBlockPos;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.Vec3i;
+
+/**
+ * A selection is an immutable object representing the current selection. The selection is commonly used for certain
+ * types of build commands, however it can be used for anything.
+ */
+public interface ISelection {
+
+    /**
+     * @return The first corner of this selection. This is meant to preserve the user's original first corner.
+     */
+    BetterBlockPos pos1();
+
+    /**
+     * @return The second corner of this selection. This is meant to preserve the user's original second corner.
+     */
+    BetterBlockPos pos2();
+
+    /**
+     * @return The {@link BetterBlockPos} with the lowest x, y, and z position in the selection.
+     */
+    BetterBlockPos min();
+
+    /**
+     * @return The opposite corner from the {@link #min()}.
+     */
+    BetterBlockPos max();
+
+    /**
+     * @return The size of this ISelection.
+     */
+    Vec3i size();
+
+    /**
+     * @return An {@link AxisAlignedBB} encompassing all blocks in this selection.
+     */
+    AxisAlignedBB aabb();
+
+    /**
+     * Returns a new {@link ISelection} expanded in the specified direction by the specified number of blocks.
+     *
+     * @param direction The direction to expand the selection.
+     * @param blocks    How many blocks to expand it.
+     * @return A new selection, expanded as specified.
+     */
+    ISelection expand(EnumFacing direction, int blocks);
+
+    /**
+     * Returns a new {@link ISelection} contracted in the specified direction by the specified number of blocks.
+     * <p>
+     * Note that, for example, if the direction specified is UP, the bottom of the selection will be shifted up. If it
+     * is DOWN, the top of the selection will be shifted down.
+     *
+     * @param direction The direction to contract the selection.
+     * @param blocks    How many blocks to contract it.
+     * @return A new selection, contracted as specified.
+     */
+    ISelection contract(EnumFacing direction, int blocks);
+
+    /**
+     * Returns a new {@link ISelection} shifted in the specified direction by the specified number of blocks. This moves
+     * the whole selection.
+     *
+     * @param direction The direction to shift the selection.
+     * @param blocks    How many blocks to shift it.
+     * @return A new selection, shifted as specified.
+     */
+    ISelection shift(EnumFacing direction, int blocks);
+}

src/api/java/baritone/api/selection/ISelectionManager.java

@@ -0,0 +1,116 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.selection;
+
+import baritone.api.utils.BetterBlockPos;
+import net.minecraft.util.EnumFacing;
+
+/**
+ * The selection manager handles setting Baritone's selections. You can set the selection here, as well as retrieving
+ * the current selection.
+ */
+public interface ISelectionManager {
+
+    /**
+     * Adds a new selection. The added selection is returned.
+     *
+     * @param selection The new selection to add.
+     */
+    ISelection addSelection(ISelection selection);
+
+    /**
+     * Adds a new {@link ISelection} constructed from the given block positions. The new selection is returned.
+     *
+     * @param pos1 One corner of the selection
+     * @param pos2 The new corner of the selection
+     */
+    ISelection addSelection(BetterBlockPos pos1, BetterBlockPos pos2);
+
+    /**
+     * Removes the selection from the current selections.
+     *
+     * @param selection The selection to remove.
+     * @return The removed selection.
+     */
+    ISelection removeSelection(ISelection selection);
+
+    /**
+     * Removes all selections.
+     *
+     * @return The selections that were removed, sorted from oldest to newest..
+     */
+    ISelection[] removeAllSelections();
+
+    /**
+     * @return The current selections, sorted from oldest to newest.
+     */
+    ISelection[] getSelections();
+
+    /**
+     * For anything expecting only one selection, this method is provided. However, to enforce multi-selection support,
+     * this method will only return a selection if there is ONLY one.
+     *
+     * @return The only selection, or null if there isn't only one.
+     */
+    ISelection getOnlySelection();
+
+    /**
+     * This method will always return the last selection. ONLY use this if you want to, for example, modify the most
+     * recent selection based on user input. ALWAYS use {@link #getOnlySelection()} or, ideally,
+     * {@link #getSelections()} for retrieving the content of selections.
+     *
+     * @return The last selection, or null if it doesn't exist.
+     */
+    ISelection getLastSelection();
+
+    /**
+     * Replaces the specified {@link ISelection} with one expanded in the specified direction by the specified number of
+     * blocks. Returns the new selection.
+     *
+     * @param selection The selection to expand.
+     * @param direction The direction to expand the selection.
+     * @param blocks    How many blocks to expand it.
+     * @return The new selection, expanded as specified.
+     */
+    ISelection expand(ISelection selection, EnumFacing direction, int blocks);
+
+    /**
+     * Replaces the specified {@link ISelection} with one contracted in the specified direction by the specified number
+     * of blocks.
+     * <p>
+     * Note that, for example, if the direction specified is UP, the bottom of the selection will be shifted up. If it
+     * is DOWN, the top of the selection will be shifted down.
+     *
+     * @param selection The selection to contract.
+     * @param direction The direction to contract the selection.
+     * @param blocks    How many blocks to contract it.
+     * @return The new selection, contracted as specified.
+     */
+    ISelection contract(ISelection selection, EnumFacing direction, int blocks);
+
+    /**
+     * Replaces the specified {@link ISelection} with one shifted in the specified direction by the specified number of
+     * blocks. This moves the whole selection.
+     *
+     * @param selection The selection to shift.
+     * @param direction The direction to shift the selection.
+     * @param blocks    How many blocks to shift it.
+     * @return The new selection, shifted as specified.
+     */
+    ISelection shift(ISelection selection, EnumFacing direction, int blocks);
+}

src/api/java/baritone/api/utils/BetterBlockPos.java

@@ -34,6 +34,9 @@ import javax.annotation.Nonnull;
  * @author leijurv
  */
 public final class BetterBlockPos extends BlockPos {
+
+    public static final BetterBlockPos ORIGIN = new BetterBlockPos(0, 0, 0);
+
     public final int x;
     public final int y;
     public final int z;
@@ -203,10 +206,10 @@ public final class BetterBlockPos extends BlockPos {
     @Nonnull
     public String toString() {
         return String.format(
-            "BetterBlockPos{x=%s,y=%s,z=%s}",
-            SettingsUtil.maybeCensor(x),
-            SettingsUtil.maybeCensor(y),
-            SettingsUtil.maybeCensor(z)
+                "BetterBlockPos{x=%s,y=%s,z=%s}",
+                SettingsUtil.maybeCensor(x),
+                SettingsUtil.maybeCensor(y),
+                SettingsUtil.maybeCensor(z)
         );
     }
 }

src/api/java/baritone/api/utils/BlockOptionalMeta.java

@@ -0,0 +1,299 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils;
+
+import baritone.api.accessor.IItemStack;
+import com.google.common.collect.ImmutableSet;
+import net.minecraft.block.*;
+import net.minecraft.block.properties.IProperty;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.ResourceLocation;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.*;
+import java.util.function.Consumer;
+import java.util.regex.MatchResult;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+public final class BlockOptionalMeta {
+
+    private final Block block;
+    private final int meta;
+    private final boolean noMeta;
+    private final Set<IBlockState> blockstates;
+    private final ImmutableSet<Integer> stateHashes;
+    private final ImmutableSet<Integer> stackHashes;
+    private static final Pattern pattern = Pattern.compile("^(.+?)(?::(\\d+))?$");
+    private static final Map<Object, Object> normalizations;
+
+    public BlockOptionalMeta(@Nonnull Block block, @Nullable Integer meta) {
+        this.block = block;
+        this.noMeta = meta == null;
+        this.meta = noMeta ? 0 : meta;
+        this.blockstates = getStates(block, meta);
+        this.stateHashes = getStateHashes(blockstates);
+        this.stackHashes = getStackHashes(blockstates);
+    }
+
+    public BlockOptionalMeta(@Nonnull Block block) {
+        this(block, null);
+    }
+
+    public BlockOptionalMeta(@Nonnull String selector) {
+        Matcher matcher = pattern.matcher(selector);
+
+        if (!matcher.find()) {
+            throw new IllegalArgumentException("invalid block selector");
+        }
+
+        MatchResult matchResult = matcher.toMatchResult();
+        noMeta = matchResult.group(2) == null;
+
+        ResourceLocation id = new ResourceLocation(matchResult.group(1));
+
+        if (!Block.REGISTRY.containsKey(id)) {
+            throw new IllegalArgumentException("Invalid block ID");
+        }
+
+        block = Block.REGISTRY.getObject(id);
+        meta = noMeta ? 0 : Integer.parseInt(matchResult.group(2));
+        blockstates = getStates(block, getMeta());
+        stateHashes = getStateHashes(blockstates);
+        stackHashes = getStackHashes(blockstates);
+    }
+
+    static {
+        Map<Object, Object> _normalizations = new HashMap<>();
+        Consumer<Enum> put = instance -> _normalizations.put(instance.getClass(), instance);
+        put.accept(EnumFacing.NORTH);
+        put.accept(EnumFacing.Axis.Y);
+        put.accept(BlockLog.EnumAxis.Y);
+        put.accept(BlockStairs.EnumHalf.BOTTOM);
+        put.accept(BlockStairs.EnumShape.STRAIGHT);
+        put.accept(BlockLever.EnumOrientation.DOWN_X);
+        put.accept(BlockDoublePlant.EnumBlockHalf.LOWER);
+        put.accept(BlockSlab.EnumBlockHalf.BOTTOM);
+        put.accept(BlockDoor.EnumDoorHalf.LOWER);
+        put.accept(BlockDoor.EnumHingePosition.LEFT);
+        put.accept(BlockBed.EnumPartType.HEAD);
+        put.accept(BlockRailBase.EnumRailDirection.NORTH_SOUTH);
+        put.accept(BlockTrapDoor.DoorHalf.BOTTOM);
+        _normalizations.put(BlockBanner.ROTATION, 0);
+        _normalizations.put(BlockBed.OCCUPIED, false);
+        _normalizations.put(BlockBrewingStand.HAS_BOTTLE[0], false);
+        _normalizations.put(BlockBrewingStand.HAS_BOTTLE[1], false);
+        _normalizations.put(BlockBrewingStand.HAS_BOTTLE[2], false);
+        _normalizations.put(BlockButton.POWERED, false);
+        // _normalizations.put(BlockCactus.AGE, 0);
+        // _normalizations.put(BlockCauldron.LEVEL, 0);
+        // _normalizations.put(BlockChorusFlower.AGE, 0);
+        _normalizations.put(BlockChorusPlant.NORTH, false);
+        _normalizations.put(BlockChorusPlant.EAST, false);
+        _normalizations.put(BlockChorusPlant.SOUTH, false);
+        _normalizations.put(BlockChorusPlant.WEST, false);
+        _normalizations.put(BlockChorusPlant.UP, false);
+        _normalizations.put(BlockChorusPlant.DOWN, false);
+        // _normalizations.put(BlockCocoa.AGE, 0);
+        // _normalizations.put(BlockCrops.AGE, 0);
+        _normalizations.put(BlockDirt.SNOWY, false);
+        _normalizations.put(BlockDoor.OPEN, false);
+        _normalizations.put(BlockDoor.POWERED, false);
+        // _normalizations.put(BlockFarmland.MOISTURE, 0);
+        _normalizations.put(BlockFence.NORTH, false);
+        _normalizations.put(BlockFence.EAST, false);
+        _normalizations.put(BlockFence.WEST, false);
+        _normalizations.put(BlockFence.SOUTH, false);
+        // _normalizations.put(BlockFenceGate.POWERED, false);
+        // _normalizations.put(BlockFenceGate.IN_WALL, false);
+        _normalizations.put(BlockFire.AGE, 0);
+        _normalizations.put(BlockFire.NORTH, false);
+        _normalizations.put(BlockFire.EAST, false);
+        _normalizations.put(BlockFire.SOUTH, false);
+        _normalizations.put(BlockFire.WEST, false);
+        _normalizations.put(BlockFire.UPPER, false);
+        // _normalizations.put(BlockFrostedIce.AGE, 0);
+        _normalizations.put(BlockGrass.SNOWY, false);
+        // _normalizations.put(BlockHopper.ENABLED, true);
+        // _normalizations.put(BlockLever.POWERED, false);
+        // _normalizations.put(BlockLiquid.LEVEL, 0);
+        // _normalizations.put(BlockMycelium.SNOWY, false);
+        // _normalizations.put(BlockNetherWart.AGE, false);
+        _normalizations.put(BlockLeaves.CHECK_DECAY, false);
+        // _normalizations.put(BlockLeaves.DECAYABLE, false);
+        // _normalizations.put(BlockObserver.POWERED, false);
+        _normalizations.put(BlockPane.NORTH, false);
+        _normalizations.put(BlockPane.EAST, false);
+        _normalizations.put(BlockPane.WEST, false);
+        _normalizations.put(BlockPane.SOUTH, false);
+        // _normalizations.put(BlockPistonBase.EXTENDED, false);
+        // _normalizations.put(BlockPressurePlate.POWERED, false);
+        // _normalizations.put(BlockPressurePlateWeighted.POWER, false);
+        _normalizations.put(BlockQuartz.EnumType.LINES_X, BlockQuartz.EnumType.LINES_Y);
+        _normalizations.put(BlockQuartz.EnumType.LINES_Z, BlockQuartz.EnumType.LINES_Y);
+        // _normalizations.put(BlockRailDetector.POWERED, false);
+        // _normalizations.put(BlockRailPowered.POWERED, false);
+        _normalizations.put(BlockRedstoneWire.NORTH, false);
+        _normalizations.put(BlockRedstoneWire.EAST, false);
+        _normalizations.put(BlockRedstoneWire.SOUTH, false);
+        _normalizations.put(BlockRedstoneWire.WEST, false);
+        // _normalizations.put(BlockReed.AGE, false);
+        _normalizations.put(BlockSapling.STAGE, 0);
+        _normalizations.put(BlockSkull.NODROP, false);
+        _normalizations.put(BlockStandingSign.ROTATION, 0);
+        _normalizations.put(BlockStem.AGE, 0);
+        _normalizations.put(BlockTripWire.NORTH, false);
+        _normalizations.put(BlockTripWire.EAST, false);
+        _normalizations.put(BlockTripWire.WEST, false);
+        _normalizations.put(BlockTripWire.SOUTH, false);
+        _normalizations.put(BlockVine.NORTH, false);
+        _normalizations.put(BlockVine.EAST, false);
+        _normalizations.put(BlockVine.SOUTH, false);
+        _normalizations.put(BlockVine.WEST, false);
+        _normalizations.put(BlockVine.UP, false);
+        _normalizations.put(BlockWall.UP, false);
+        _normalizations.put(BlockWall.NORTH, false);
+        _normalizations.put(BlockWall.EAST, false);
+        _normalizations.put(BlockWall.WEST, false);
+        _normalizations.put(BlockWall.SOUTH, false);
+        normalizations = Collections.unmodifiableMap(_normalizations);
+    }
+
+    private static <C extends Comparable<C>, P extends IProperty<C>> P castToIProperty(Object value) {
+        //noinspection unchecked
+        return (P) value;
+    }
+
+    private static <C extends Comparable<C>, P extends IProperty<C>> C castToIPropertyValue(P iproperty, Object value) {
+        //noinspection unchecked
+        return (C) value;
+    }
+
+    public static IBlockState normalize(IBlockState state) {
+        IBlockState newState = state;
+
+        for (IProperty<?> property : state.getProperties().keySet()) {
+            Class<?> valueClass = property.getValueClass();
+            if (normalizations.containsKey(property)) {
+                try {
+                    newState = newState.withProperty(
+                            castToIProperty(property),
+                            castToIPropertyValue(property, normalizations.get(property))
+                    );
+                } catch (IllegalArgumentException ignored) {}
+            } else if (normalizations.containsKey(state.getValue(property))) {
+                try {
+                    newState = newState.withProperty(
+                            castToIProperty(property),
+                            castToIPropertyValue(property, normalizations.get(state.getValue(property)))
+                    );
+                } catch (IllegalArgumentException ignored) {}
+            } else if (normalizations.containsKey(valueClass)) {
+                try {
+                    newState = newState.withProperty(
+                            castToIProperty(property),
+                            castToIPropertyValue(property, normalizations.get(valueClass))
+                    );
+                } catch (IllegalArgumentException ignored) {}
+            }
+        }
+
+        return newState;
+    }
+
+    public static int stateMeta(IBlockState state) {
+        return state.getBlock().getMetaFromState(normalize(state));
+    }
+
+    private static Set<IBlockState> getStates(@Nonnull Block block, @Nullable Integer meta) {
+        return block.getBlockState().getValidStates().stream()
+                .filter(blockstate -> meta == null || stateMeta(blockstate) == meta)
+                .collect(Collectors.toSet());
+    }
+
+    private static ImmutableSet<Integer> getStateHashes(Set<IBlockState> blockstates) {
+        return ImmutableSet.copyOf(
+                blockstates.stream()
+                        .map(IBlockState::hashCode)
+                        .toArray(Integer[]::new)
+        );
+    }
+
+    private static ImmutableSet<Integer> getStackHashes(Set<IBlockState> blockstates) {
+        //noinspection ConstantConditions
+        return ImmutableSet.copyOf(
+                blockstates.stream()
+                        .map(state -> new ItemStack(
+                                state.getBlock().getItemDropped(state, new Random(), 0),
+                                state.getBlock().damageDropped(state)
+                        ))
+                        .map(stack -> ((IItemStack) (Object) stack).getBaritoneHash())
+                        .toArray(Integer[]::new)
+        );
+    }
+
+    public Block getBlock() {
+        return block;
+    }
+
+    public Integer getMeta() {
+        return noMeta ? null : meta;
+    }
+
+    public boolean matches(@Nonnull Block block) {
+        return block == this.block;
+    }
+
+    public boolean matches(@Nonnull IBlockState blockstate) {
+        Block block = blockstate.getBlock();
+        return block == this.block && stateHashes.contains(blockstate.hashCode());
+    }
+
+    public boolean matches(ItemStack stack) {
+        //noinspection ConstantConditions
+        int hash = ((IItemStack) (Object) stack).getBaritoneHash();
+
+        if (noMeta) {
+            hash -= stack.getItemDamage();
+        }
+
+        return stackHashes.contains(hash);
+    }
+
+    @Override
+    public String toString() {
+        return String.format("BlockOptionalMeta{block=%s,meta=%s}", block, getMeta());
+    }
+
+    public static IBlockState blockStateFromStack(ItemStack stack) {
+        //noinspection deprecation
+        return Block.getBlockFromItem(stack.getItem()).getStateFromMeta(stack.getMetadata());
+    }
+
+    public IBlockState getAnyBlockState() {
+        if (blockstates.size() > 0) {
+            return blockstates.iterator().next();
+        }
+
+        return null;
+    }
+}

src/api/java/baritone/api/utils/BlockOptionalMetaLookup.java

@@ -0,0 +1,95 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.item.ItemStack;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Stream;
+
+public class BlockOptionalMetaLookup {
+
+    private final BlockOptionalMeta[] boms;
+
+    public BlockOptionalMetaLookup(BlockOptionalMeta... boms) {
+        this.boms = boms;
+    }
+
+    public BlockOptionalMetaLookup(Block... blocks) {
+        this.boms = Stream.of(blocks)
+                .map(BlockOptionalMeta::new)
+                .toArray(BlockOptionalMeta[]::new);
+    }
+
+    public BlockOptionalMetaLookup(List<Block> blocks) {
+        this.boms = blocks.stream()
+                .map(BlockOptionalMeta::new)
+                .toArray(BlockOptionalMeta[]::new);
+    }
+
+    public BlockOptionalMetaLookup(String... blocks) {
+        this.boms = Stream.of(blocks)
+                .map(BlockOptionalMeta::new)
+                .toArray(BlockOptionalMeta[]::new);
+    }
+
+    public boolean has(Block block) {
+        for (BlockOptionalMeta bom : boms) {
+            if (bom.getBlock() == block) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public boolean has(IBlockState state) {
+        for (BlockOptionalMeta bom : boms) {
+            if (bom.matches(state)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public boolean has(ItemStack stack) {
+        for (BlockOptionalMeta bom : boms) {
+            if (bom.matches(stack)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public List<BlockOptionalMeta> blocks() {
+        return Arrays.asList(boms);
+    }
+
+    @Override
+    public String toString() {
+        return String.format(
+                "BlockOptionalMetaLookup{%s}",
+                Arrays.toString(boms)
+        );
+    }
+}

src/api/java/baritone/api/utils/BlockUtils.java

@@ -22,9 +22,9 @@ import net.minecraft.util.ResourceLocation;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Objects;
 
 public class BlockUtils {
+
     private static transient Map<String, Block> resourceCache = new HashMap<>();
 
     public static String blockToString(Block block) {
@@ -39,7 +39,11 @@ public class BlockUtils {
 
     public static Block stringToBlockRequired(String name) {
         Block block = stringToBlockNullable(name);
-        Objects.requireNonNull(block);
+
+        if (block == null) {
+            throw new IllegalArgumentException(String.format("Invalid block name %s", name));
+        }
+
         return block;
     }
 

src/api/java/baritone/api/utils/ExampleBaritoneControl.java

@@ -1,755 +0,0 @@
-/*
- * This file is part of Baritone.
- *
- * Baritone is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Baritone is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package baritone.api.utils;
-
-import baritone.api.BaritoneAPI;
-import baritone.api.IBaritone;
-import baritone.api.Settings;
-import baritone.api.behavior.IPathingBehavior;
-import baritone.api.cache.IRememberedInventory;
-import baritone.api.cache.IWaypoint;
-import baritone.api.cache.Waypoint;
-import baritone.api.event.events.ChatEvent;
-import baritone.api.event.listener.AbstractGameEventListener;
-import baritone.api.pathing.goals.*;
-import baritone.api.process.IBaritoneProcess;
-import baritone.api.process.ICustomGoalProcess;
-import baritone.api.process.IGetToBlockProcess;
-import net.minecraft.block.Block;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.multiplayer.ChunkProviderClient;
-import net.minecraft.crash.CrashReport;
-import net.minecraft.entity.Entity;
-import net.minecraft.entity.item.EntityItem;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.ReportedException;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.text.ITextComponent;
-import net.minecraft.util.text.TextComponentString;
-import net.minecraft.util.text.TextFormatting;
-import net.minecraft.util.text.event.ClickEvent;
-import net.minecraft.world.DimensionType;
-import net.minecraft.world.chunk.Chunk;
-
-import java.nio.file.Path;
-import java.util.*;
-
-import static org.apache.commons.lang3.math.NumberUtils.isCreatable;
-
-public class ExampleBaritoneControl implements Helper, AbstractGameEventListener {
-    private static final String COMMAND_PREFIX = "#";
-
-    public final IBaritone baritone;
-    public final IPlayerContext ctx;
-
-    public ExampleBaritoneControl(IBaritone baritone) {
-        this.baritone = baritone;
-        this.ctx = baritone.getPlayerContext();
-        baritone.getGameEventHandler().registerEventListener(this);
-    }
-
-    @Override
-    public void onSendChatMessage(ChatEvent event) {
-        String msg = event.getMessage();
-        if (BaritoneAPI.getSettings().prefixControl.value && msg.startsWith(COMMAND_PREFIX)) {
-            if (!runCommand(msg.substring(COMMAND_PREFIX.length()))) {
-                logDirect("Invalid command");
-            }
-            event.cancel(); // always cancel if using prefixControl
-            return;
-        }
-        if (!BaritoneAPI.getSettings().chatControl.value && !BaritoneAPI.getSettings().removePrefix.value) {
-            return;
-        }
-        if (runCommand(msg)) {
-            event.cancel();
-        }
-    }
-
-    public boolean runCommand(String msg0) { // you may think this can be private, but impcat calls it from .b =)
-        String msg = msg0.toLowerCase(Locale.US).trim(); // don't reassign the argument LOL
-        IPathingBehavior pathingBehavior = baritone.getPathingBehavior();
-        ICustomGoalProcess customGoalProcess = baritone.getCustomGoalProcess();
-        List<Settings.Setting<Boolean>> toggleable = BaritoneAPI.getSettings().getAllValuesByType(Boolean.class);
-        for (Settings.Setting<Boolean> setting : toggleable) {
-            if (msg.equalsIgnoreCase(setting.getName())) {
-                setting.value ^= true;
-                logDirect("Toggled " + setting.getName() + " to " + setting.value);
-                SettingsUtil.save(BaritoneAPI.getSettings());
-                return true;
-            }
-        }
-        if (msg.equals("baritone") || msg.equals("modifiedsettings") || msg.startsWith("settings m") || msg.equals("modified")) {
-            logDirect("All settings that have been modified from their default values:");
-            for (Settings.Setting<?> setting : SettingsUtil.modifiedSettings(BaritoneAPI.getSettings())) {
-                logDirect(setting.toString());
-            }
-            return true;
-        }
-        if (msg.startsWith("settings")) {
-            String rest = msg.substring("settings".length());
-            try {
-                int page = Integer.parseInt(rest.trim());
-                int min = page * 10;
-                int max = Math.min(BaritoneAPI.getSettings().allSettings.size(), (page + 1) * 10);
-                logDirect("Settings " + min + " to " + (max - 1) + ":");
-                for (int i = min; i < max; i++) {
-                    logDirect(BaritoneAPI.getSettings().allSettings.get(i).toString());
-                }
-            } catch (Exception ex) { // NumberFormatException | ArrayIndexOutOfBoundsException and probably some others I'm forgetting lol
-                ex.printStackTrace();
-                logDirect("All settings:");
-                for (Settings.Setting<?> setting : BaritoneAPI.getSettings().allSettings) {
-                    logDirect(setting.toString());
-                }
-                logDirect("To get one page of ten settings at a time, do settings <num>");
-            }
-            return true;
-        }
-        if (msg.equals("") || msg.equals("help") || msg.equals("?")) {
-            ITextComponent component = MESSAGE_PREFIX.createCopy();
-            component.getStyle().setColor(TextFormatting.GRAY);
-            TextComponentString helpLink = new TextComponentString(" Click here for instructions on how to use Baritone (https://github.com/cabaletta/baritone/blob/master/USAGE.md)");
-            helpLink.getStyle().setClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, "https://github.com/cabaletta/baritone/blob/master/USAGE.md"));
-            component.appendSibling(helpLink);
-            BaritoneAPI.getSettings().logger.value.accept(component);
-            return true;
-        }
-        if (msg.contains(" ")) {
-            String settingName = msg.substring(0, msg.indexOf(' '));
-            String settingValue = msg.substring(msg.indexOf(' ') + 1);
-            Settings.Setting setting = BaritoneAPI.getSettings().byLowerName.get(settingName);
-            if (setting != null) {
-                if (settingValue.equals("reset")) {
-                    logDirect("Resetting setting " + settingName + " to default value.");
-                    setting.reset();
-                } else {
-                    try {
-                        SettingsUtil.parseAndApply(BaritoneAPI.getSettings(), settingName, settingValue);
-                    } catch (Exception ex) {
-                        logDirect("Unable to parse setting");
-                        return true;
-                    }
-                }
-                SettingsUtil.save(BaritoneAPI.getSettings());
-                logDirect(setting.toString());
-                return true;
-            }
-        }
-        if (BaritoneAPI.getSettings().byLowerName.containsKey(msg)) {
-            Settings.Setting<?> setting = BaritoneAPI.getSettings().byLowerName.get(msg);
-            logDirect(setting.toString());
-            return true;
-        }
-
-        if (msg.startsWith("goal")) {
-            String rest = msg.substring(4).trim();
-            Goal goal;
-            if (rest.equals("clear") || rest.equals("none")) {
-                goal = null;
-            } else {
-                String[] params = rest.split(" ");
-                if (params[0].equals("")) {
-                    params = new String[]{};
-                }
-                goal = parseGoal(params);
-                if (goal == null) {
-                    return true;
-                }
-            }
-            customGoalProcess.setGoal(goal);
-            logDirect("Goal: " + goal);
-            return true;
-        }
-        if (msg.equals("crash")) {
-            StringBuilder meme = new StringBuilder();
-            CrashReport rep = new CrashReport("Manually triggered debug crash", new Throwable());
-            mc.addGraphicsAndWorldToCrashReport(rep);
-            new ReportedException(rep).printStackTrace();
-            rep.getSectionsInStringBuilder(meme);
-            System.out.println(meme);
-            logDirect(meme.toString());
-            logDirect("ok");
-            return true;
-        }
-        if (msg.equals("path")) {
-            if (pathingBehavior.getGoal() == null) {
-                logDirect("No goal.");
-            } else if (pathingBehavior.getGoal().isInGoal(ctx.playerFeet())) {
-                logDirect("Already in goal");
-            } else if (pathingBehavior.isPathing()) {
-                logDirect("Currently executing a path. Please cancel it first.");
-            } else {
-                customGoalProcess.setGoalAndPath(pathingBehavior.getGoal());
-            }
-            return true;
-        }
-        /*if (msg.equals("fullpath")) {
-            if (pathingBehavior.getGoal() == null) {
-                logDirect("No goal.");
-            } else {
-                logDirect("Started segmented calculator");
-                SegmentedCalculator.calculateSegmentsThreaded(pathingBehavior.pathStart(), pathingBehavior.getGoal(), new CalculationContext(baritone, true), ipath -> {
-                    logDirect("Found a path");
-                    logDirect("Ends at " + ipath.getDest());
-                    logDirect("Length " + ipath.length());
-                    logDirect("Estimated time " + ipath.ticksRemainingFrom(0));
-                    pathingBehavior.secretCursedFunctionDoNotCall(ipath); // it's okay when *I* do it
-                }, () -> {
-                    logDirect("Path calculation failed, no path");
-                });
-            }
-            return true;
-        }*/
-        if (msg.equals("proc")) {
-            Optional<IBaritoneProcess> proc = baritone.getPathingControlManager().mostRecentInControl();
-            if (!proc.isPresent()) {
-                logDirect("No process is in control");
-                return true;
-            }
-            IBaritoneProcess p = proc.get();
-            logDirect("Class: " + p.getClass());
-            logDirect("Priority: " + p.priority());
-            logDirect("Temporary: " + p.isTemporary());
-            logDirect("Display name: " + p.displayName());
-            logDirect("Command: " + baritone.getPathingControlManager().mostRecentCommand());
-            return true;
-        }
-        if (msg.equals("version")) {
-            String version = ExampleBaritoneControl.class.getPackage().getImplementationVersion();
-            if (version == null) {
-                logDirect("No version detected. Either dev environment or broken install.");
-            } else {
-                logDirect("You are using Baritone v" + version);
-            }
-            return true;
-        }
-        if (msg.equals("repack") || msg.equals("rescan")) {
-            logDirect("Queued " + repack() + " chunks for repacking");
-            return true;
-        }
-        if (msg.startsWith("build")) {
-            String file;
-            BlockPos origin;
-            try {
-                String[] coords = msg.substring("build".length()).trim().split(" ");
-                file = coords[0] + ".schematic";
-                origin = new BlockPos(parseOrDefault(coords[1], ctx.playerFeet().x, 1), parseOrDefault(coords[2], ctx.playerFeet().y, 1), parseOrDefault(coords[3], ctx.playerFeet().z, 1));
-            } catch (Exception ex) {
-                file = msg.substring(5).trim() + ".schematic";
-                origin = ctx.playerFeet();
-            }
-            logDirect("Loading '" + file + "' to build from origin " + origin);
-            boolean success = baritone.getBuilderProcess().build(file, origin);
-            logDirect(success ? "Loaded" : "Unable to load");
-            return true;
-        }
-        if (msg.startsWith("schematica")) {
-            baritone.getBuilderProcess().buildOpenSchematic();
-            return true;
-        }
-        if (msg.equals("come")) {
-            customGoalProcess.setGoalAndPath(new GoalBlock(new BlockPos(Helper.mc.getRenderViewEntity())));
-            logDirect("Coming");
-            return true;
-        }
-        if (msg.equals("axis") || msg.equals("highway")) {
-            customGoalProcess.setGoalAndPath(new GoalAxis());
-            return true;
-        }
-        if (msg.equals("cancel") || msg.equals("stop")) {
-            pathingBehavior.cancelEverything();
-            logDirect("ok canceled");
-            return true;
-        }
-        if (msg.equals("forcecancel")) {
-            pathingBehavior.cancelEverything();
-            pathingBehavior.forceCancel();
-            logDirect("ok force canceled");
-            return true;
-        }
-        if (msg.equals("gc")) {
-            System.gc();
-            logDirect("Called System.gc();");
-            return true;
-        }
-        if (msg.equals("invert")) {
-            Goal goal = pathingBehavior.getGoal();
-            BlockPos runAwayFrom;
-            if (goal instanceof GoalXZ) {
-                runAwayFrom = new BlockPos(((GoalXZ) goal).getX(), 0, ((GoalXZ) goal).getZ());
-            } else if (goal instanceof GoalBlock) {
-                runAwayFrom = ((GoalBlock) goal).getGoalPos();
-            } else {
-                logDirect("Goal must be GoalXZ or GoalBlock to invert");
-                logDirect("Inverting goal of player feet");
-                runAwayFrom = ctx.playerFeet();
-            }
-            customGoalProcess.setGoalAndPath(new GoalRunAway(1, runAwayFrom) {
-                @Override
-                public boolean isInGoal(int x, int y, int z) {
-                    return false;
-                }
-            });
-            return true;
-        }
-        if (msg.startsWith("cleararea")) {
-            String suffix = msg.substring("cleararea".length());
-            BlockPos corner1;
-            BlockPos corner2;
-            if (suffix.isEmpty()) {
-                // clear the area from the current goal to here
-                Goal goal = baritone.getPathingBehavior().getGoal();
-                if (!(goal instanceof GoalBlock)) {
-                    logDirect("Need to specify goal of opposite corner");
-                    return true;
-                }
-                corner1 = ((GoalBlock) goal).getGoalPos();
-                corner2 = ctx.playerFeet();
-            } else {
-                try {
-                    String[] spl = suffix.split(" ");
-                    corner1 = ctx.playerFeet();
-                    corner2 = new BlockPos(Integer.parseInt(spl[0]), Integer.parseInt(spl[1]), Integer.parseInt(spl[2]));
-                } catch (NumberFormatException | ArrayIndexOutOfBoundsException | NullPointerException ex) {
-                    logDirect("unable to parse");
-                    return true;
-                }
-            }
-            baritone.getBuilderProcess().clearArea(corner1, corner2);
-            return true;
-        }
-        if (msg.equals("resume")) {
-            baritone.getBuilderProcess().resume();
-            logDirect("resumed");
-            return true;
-        }
-        if (msg.equals("pause")) {
-            baritone.getBuilderProcess().pause();
-            logDirect("paused");
-            return true;
-        }
-        if (msg.equals("reset")) {
-            for (Settings.Setting setting : BaritoneAPI.getSettings().allSettings) {
-                setting.reset();
-            }
-            SettingsUtil.save(BaritoneAPI.getSettings());
-            logDirect("Baritone settings reset");
-            return true;
-        }
-        if (msg.equals("tunnel")) {
-            customGoalProcess.setGoalAndPath(new GoalStrictDirection(ctx.playerFeet(), ctx.player().getHorizontalFacing()));
-            logDirect("tunneling");
-            return true;
-        }
-        if (msg.equals("render")) {
-            BetterBlockPos pf = ctx.playerFeet();
-            int dist = (Minecraft.getMinecraft().gameSettings.renderDistanceChunks + 1) * 16;
-            Minecraft.getMinecraft().renderGlobal.markBlockRangeForRenderUpdate(pf.x - dist, pf.y - 256, pf.z - dist, pf.x + dist, pf.y + 256, pf.z + dist);
-            logDirect("okay");
-            return true;
-        }
-        if (msg.equals("farm")) {
-            baritone.getFarmProcess().farm();
-            logDirect("farming");
-            return true;
-        }
-        if (msg.equals("chests")) {
-            for (Map.Entry<BlockPos, IRememberedInventory> entry : baritone.getWorldProvider().getCurrentWorld().getContainerMemory().getRememberedInventories().entrySet()) {
-                logDirect(BetterBlockPos.from(entry.getKey()) + "");
-                log(entry.getValue().getContents());
-            }
-            return true;
-        }
-        if (msg.startsWith("followentities")) {
-            baritone.getFollowProcess().follow(Entity.class::isInstance);
-            logDirect("Following any entities");
-            return true;
-        }
-        if (msg.startsWith("followplayers")) {
-            baritone.getFollowProcess().follow(EntityPlayer.class::isInstance); // O P P A
-            logDirect("Following any players");
-            return true;
-        }
-        if (msg.startsWith("followentity")) {
-            String name = msg.substring(12).trim();
-            Optional<Entity> toFollow = Optional.empty();
-            for (Entity entity : ctx.world().loadedEntityList) {
-                String entityName = entity.getName().trim().toLowerCase();
-                if ((entityName.contains(name) || name.contains(entityName)) && !(entity instanceof EntityItem || entity instanceof EntityPlayer)) { // We dont want it following players while `#follow` exists.
-                    toFollow = Optional.of(entity);
-                }
-            }
-            if (!toFollow.isPresent()) {
-                logDirect("Entity not found");
-                return true;
-            }
-            Entity effectivelyFinal = toFollow.get();
-            baritone.getFollowProcess().follow(effectivelyFinal::equals);
-            logDirect("Following entity " + toFollow.get());
-            return true;
-        }
-        if (msg.startsWith("follow")) {
-            String name = msg.substring(6).trim();
-            Optional<Entity> toFollow = Optional.empty();
-            if (name.length() == 0) {
-                toFollow = ctx.getSelectedEntity();
-            } else {
-                for (EntityPlayer pl : ctx.world().playerEntities) {
-                    String theirName = pl.getName().trim().toLowerCase();
-                    if (!theirName.equals(ctx.player().getName().trim().toLowerCase()) && (theirName.contains(name) || name.contains(theirName))) { // don't follow ourselves lol
-                        toFollow = Optional.of(pl);
-                    }
-                }
-            }
-            if (!toFollow.isPresent()) {
-                logDirect("Not found");
-                return true;
-            }
-            Entity effectivelyFinal = toFollow.get();
-            baritone.getFollowProcess().follow(effectivelyFinal::equals);
-            logDirect("Following " + toFollow.get());
-            return true;
-        }
-        if (msg.startsWith("explorefilter")) {
-            // explorefilter blah.json
-            // means that entries in blah.json are already explored
-            // explorefilter blah.json invert
-            // means that entries in blah.json are NOT already explored
-            String path = msg.substring("explorefilter".length()).trim();
-            String[] parts = path.split(" ");
-            Path path1 = Minecraft.getMinecraft().gameDir.toPath().resolve(parts[0]);
-            boolean invert = parts.length > 1;
-            try {
-                baritone.getExploreProcess().applyJsonFilter(path1, invert);
-                logDirect("Loaded filter. Inverted: " + invert);
-                if (invert) {
-                    logDirect("Chunks on this list will be treated as possibly unexplored, all others will be treated as certainly explored");
-                } else {
-                    logDirect("Chunks on this list will be treated as certainly explored, all others will be treated as possibly unexplored");
-                }
-            } catch (Exception e) {
-                e.printStackTrace();
-                logDirect("Unable to load " + path1);
-            }
-            return true;
-        }
-        if (msg.equals("reloadall")) {
-            baritone.getWorldProvider().getCurrentWorld().getCachedWorld().reloadAllFromDisk();
-            logDirect("ok");
-            return true;
-        }
-        if (msg.equals("saveall")) {
-            baritone.getWorldProvider().getCurrentWorld().getCachedWorld().save();
-            logDirect("ok");
-            return true;
-        }
-        if (msg.startsWith("explore")) {
-            String rest = msg.substring("explore".length()).trim();
-            int centerX;
-            int centerZ;
-            try {
-                centerX = Integer.parseInt(rest.split(" ")[0]);
-                centerZ = Integer.parseInt(rest.split(" ")[1]);
-            } catch (Exception ex) {
-                centerX = ctx.playerFeet().x;
-                centerZ = ctx.playerFeet().z;
-            }
-            baritone.getExploreProcess().explore(centerX, centerZ);
-            logDirect("Exploring from " + centerX + "," + centerZ);
-            return true;
-        }
-        if (msg.equals("blacklist")) {
-            IGetToBlockProcess proc = baritone.getGetToBlockProcess();
-            if (!proc.isActive()) {
-                logDirect("GetToBlockProcess is not currently active");
-                return true;
-            }
-            if (proc.blacklistClosest()) {
-                logDirect("Blacklisted closest instances");
-            } else {
-                logDirect("No known locations, unable to blacklist");
-            }
-            return true;
-        }
-        if (msg.startsWith("find")) {
-            repack();
-            String blockType = msg.substring(4).trim();
-            ArrayList<BlockPos> locs = baritone.getWorldProvider().getCurrentWorld().getCachedWorld().getLocationsOf(blockType, 1, ctx.playerFeet().getX(), ctx.playerFeet().getZ(), 4);
-            logDirect("Have " + locs.size() + " locations");
-            for (BlockPos pos : locs) {
-                Block actually = ctx.world().getBlockState(pos).getBlock();
-                if (!BlockUtils.blockToString(actually).equalsIgnoreCase(blockType)) {
-                    logDebug("Was looking for " + blockType + " but actually found " + actually + " " + BlockUtils.blockToString(actually));
-                }
-            }
-            return true;
-        }
-        if (msg.startsWith("mine")) {
-            repack();
-            String[] blockTypes = msg.substring(4).trim().split(" ");
-            try {
-                int quantity = Integer.parseInt(blockTypes[1]);
-                Block block = BlockUtils.stringToBlockRequired(blockTypes[0]);
-                baritone.getMineProcess().mine(quantity, block);
-                logDirect("Will mine " + quantity + " " + blockTypes[0]);
-                return true;
-            } catch (NumberFormatException | ArrayIndexOutOfBoundsException | NullPointerException ex) {}
-            for (String s : blockTypes) {
-                if (BlockUtils.stringToBlockNullable(s) == null) {
-                    logDirect(s + " isn't a valid block name");
-                    return true;
-                }
-
-            }
-            baritone.getMineProcess().mineByName(0, blockTypes);
-            logDirect("Started mining blocks of type " + Arrays.toString(blockTypes));
-            return true;
-        }
-        if (msg.equals("click")) {
-            baritone.openClick();
-            logDirect("aight dude");
-            return true;
-        }
-        if (msg.startsWith("thisway") || msg.startsWith("forward")) {
-            try {
-                Goal goal = GoalXZ.fromDirection(ctx.playerFeetAsVec(), ctx.player().rotationYaw, Double.parseDouble(msg.substring(7).trim()));
-                customGoalProcess.setGoal(goal);
-                logDirect("Goal: " + goal);
-            } catch (NumberFormatException ex) {
-                logDirect("Error unable to parse '" + msg.substring(7).trim() + "' to a double.");
-            }
-            return true;
-        }
-        if (msg.startsWith("list") || msg.startsWith("get ") || msg.startsWith("show")) {
-            String waypointType = msg.substring(4).trim();
-            if (waypointType.endsWith("s")) {
-                // for example, "show deaths"
-                waypointType = waypointType.substring(0, waypointType.length() - 1);
-            }
-            IWaypoint.Tag tag = IWaypoint.Tag.fromString(waypointType);
-            if (tag == null) {
-                logDirect("Not a valid tag. Tags are: " + Arrays.asList(IWaypoint.Tag.values()).toString().toLowerCase());
-                return true;
-            }
-            Set<IWaypoint> waypoints = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getByTag(tag);
-            // might as well show them from oldest to newest
-            List<IWaypoint> sorted = new ArrayList<>(waypoints);
-            sorted.sort(Comparator.comparingLong(IWaypoint::getCreationTimestamp));
-            logDirect("Waypoints under tag " + tag + ":");
-            for (IWaypoint waypoint : sorted) {
-                logDirect(waypoint.toString());
-            }
-            return true;
-        }
-        if (msg.startsWith("save")) {
-            String name = msg.substring(4).trim();
-            BlockPos pos = ctx.playerFeet();
-            if (name.contains(" ")) {
-                logDirect("Name contains a space, assuming it's in the format 'save waypointName X Y Z'");
-                String[] parts = name.split(" ");
-                if (parts.length != 4) {
-                    logDirect("Unable to parse, expected four things");
-                    return true;
-                }
-                try {
-                    pos = new BlockPos(Integer.parseInt(parts[1]), Integer.parseInt(parts[2]), Integer.parseInt(parts[3]));
-                } catch (NumberFormatException ex) {
-                    logDirect("Unable to parse coordinate integers");
-                    return true;
-                }
-                name = parts[0];
-            }
-            for (IWaypoint.Tag tag : IWaypoint.Tag.values()) {
-                if (tag.name().equalsIgnoreCase(name)) {
-                    logDirect("Unable to use tags as name. Tags are: " + Arrays.asList(IWaypoint.Tag.values()).toString().toLowerCase());
-                    return true;
-                }
-            }
-            baritone.getWorldProvider().getCurrentWorld().getWaypoints().addWaypoint(new Waypoint(name, IWaypoint.Tag.USER, pos));
-            logDirect("Saved user defined position " + pos + " under name '" + name + "'. Say 'goto " + name + "' to set goal, say 'list user' to list custom waypoints.");
-            return true;
-        }
-        if (msg.startsWith("delete")) {
-            String name = msg.substring(6).trim();
-            IWaypoint waypoint = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getAllWaypoints().stream().filter(w -> w.getTag() == IWaypoint.Tag.USER && w.getName().equalsIgnoreCase(name)).findFirst().orElse(null);
-            if (waypoint == null) {
-                logDirect("No user defined position under the name '" + name + "' found.");
-                return true;
-            }
-            baritone.getWorldProvider().getCurrentWorld().getWaypoints().removeWaypoint(waypoint);
-            logDirect("Deleted user defined position under name '" + name + "'.");
-            return true;
-        }
-        if (msg.startsWith("goto")) {
-            repack();
-            String waypointType = msg.substring(4).trim();
-            if (waypointType.endsWith("s") && IWaypoint.Tag.fromString(waypointType.substring(0, waypointType.length() - 1)) != null) {
-                // for example, "show deaths"
-                waypointType = waypointType.substring(0, waypointType.length() - 1);
-            }
-            IWaypoint.Tag tag = IWaypoint.Tag.fromString(waypointType);
-            IWaypoint waypoint;
-            if (tag == null) {
-                String mining = waypointType;
-                Block block = BlockUtils.stringToBlockNullable(mining);
-                //logDirect("Not a valid tag. Tags are: " + Arrays.asList(Waypoint.Tag.values()).toString().toLowerCase());
-                if (block == null) {
-                    waypoint = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getAllWaypoints().stream().filter(w -> w.getName().equalsIgnoreCase(mining)).max(Comparator.comparingLong(IWaypoint::getCreationTimestamp)).orElse(null);
-                    if (waypoint == null) {
-                        Goal goal = parseGoal(waypointType.split(" "));
-                        if (goal != null) {
-                            logDirect("Going to " + goal);
-                            customGoalProcess.setGoalAndPath(goal);
-                        }
-                        return true;
-                    }
-                } else {
-                    baritone.getGetToBlockProcess().getToBlock(block);
-                    return true;
-                }
-            } else {
-                waypoint = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getMostRecentByTag(tag);
-                if (waypoint == null) {
-                    logDirect("None saved for tag " + tag);
-                    return true;
-                }
-            }
-            Goal goal = waypoint.getTag() == IWaypoint.Tag.BED ? new GoalGetToBlock(waypoint.getLocation()) : new GoalBlock(waypoint.getLocation());
-            customGoalProcess.setGoalAndPath(goal);
-            return true;
-        }
-        if (msg.equals("spawn") || msg.equals("bed")) {
-            IWaypoint waypoint = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getMostRecentByTag(IWaypoint.Tag.BED);
-            if (waypoint == null) {
-                BlockPos spawnPoint = ctx.player().getBedLocation();
-                // for some reason the default spawnpoint is underground sometimes
-                Goal goal = new GoalXZ(spawnPoint.getX(), spawnPoint.getZ());
-                logDirect("spawn not saved, defaulting to world spawn. set goal to " + goal);
-                customGoalProcess.setGoalAndPath(goal);
-            } else {
-                Goal goal = new GoalGetToBlock(waypoint.getLocation());
-                customGoalProcess.setGoalAndPath(goal);
-                logDirect("Set goal to most recent bed " + goal);
-            }
-            return true;
-        }
-        if (msg.equals("sethome")) {
-            baritone.getWorldProvider().getCurrentWorld().getWaypoints().addWaypoint(new Waypoint("", IWaypoint.Tag.HOME, ctx.playerFeet()));
-            logDirect("Saved. Say home to set goal.");
-            return true;
-        }
-        if (msg.equals("home")) {
-            IWaypoint waypoint = baritone.getWorldProvider().getCurrentWorld().getWaypoints().getMostRecentByTag(IWaypoint.Tag.HOME);
-            if (waypoint == null) {
-                logDirect("home not saved");
-            } else {
-                Goal goal = new GoalBlock(waypoint.getLocation());
-                customGoalProcess.setGoalAndPath(goal);
-                logDirect("Going to saved home " + goal);
-            }
-            return true;
-        }
-        if (msg.equals("damn")) {
-            logDirect("daniel");
-        }
-        return false;
-    }
-
-    private int repack() {
-        ChunkProviderClient cli = (ChunkProviderClient) ctx.world().getChunkProvider();
-        int playerChunkX = ctx.playerFeet().getX() >> 4;
-        int playerChunkZ = ctx.playerFeet().getZ() >> 4;
-        int count = 0;
-        for (int x = playerChunkX - 40; x <= playerChunkX + 40; x++) {
-            for (int z = playerChunkZ - 40; z <= playerChunkZ + 40; z++) {
-                Chunk chunk = cli.getLoadedChunk(x, z);
-                if (chunk != null && !chunk.isEmpty()) {
-                    count++;
-                    baritone.getWorldProvider().getCurrentWorld().getCachedWorld().queueForPacking(chunk);
-                }
-            }
-        }
-        return count;
-    }
-
-    private int parseOrDefault(String str, int i, double dimensionFactor) {
-        return str.equals("~") ? i : str.startsWith("~") ? (int) (Integer.parseInt(str.substring(1)) * dimensionFactor) + i : (int) (Integer.parseInt(str) * dimensionFactor);
-    }
-
-    private void log(List<ItemStack> stacks) {
-        for (ItemStack stack : stacks) {
-            if (!stack.isEmpty()) {
-                logDirect(stack.getCount() + "x " + stack.getDisplayName() + "@" + stack.getItemDamage());
-            }
-        }
-    }
-
-    private Goal parseGoal(String[] params) {
-        Goal goal;
-        try {
-            BetterBlockPos playerFeet = ctx.playerFeet();
-
-            int length = params.length - 1; // length has to be smaller when a dimension parameter is added
-            if (params.length < 1 || (isCreatable(params[params.length - 1]) || params[params.length - 1].startsWith("~"))) {
-                length = params.length;
-            }
-            switch (length) {
-                case 0:
-                    goal = new GoalBlock(playerFeet);
-                    break;
-                case 1:
-                    goal = new GoalYLevel(parseOrDefault(params[0], playerFeet.y, 1));
-                    break;
-                case 2:
-                    goal = new GoalXZ(parseOrDefault(params[0], playerFeet.x, calculateDimensionFactor(params[params.length - 1])), parseOrDefault(params[1], playerFeet.z, calculateDimensionFactor(params[params.length - 1])));
-                    break;
-                case 3:
-                    goal = new GoalBlock(new BlockPos(parseOrDefault(params[0], playerFeet.x, calculateDimensionFactor(params[params.length - 1])), parseOrDefault(params[1], playerFeet.y, 1), parseOrDefault(params[2], playerFeet.z, calculateDimensionFactor(params[params.length - 1]))));
-                    break;
-                default:
-                    logDirect("unable to understand lol");
-                    return null;
-            }
-        } catch (NumberFormatException ex) {
-            logDirect("unable to parse integer " + ex);
-            return null;
-        }
-        return goal;
-    }
-
-
-    private double calculateDimensionFactor(String to) {
-        return Math.pow(8, ctx.world().provider.getDimensionType().getId() - getDimensionByName(to.toLowerCase()).getId());
-    }
-
-    private DimensionType getDimensionByName(String name) {
-        if ("the_end".contains(name)) {
-            return DimensionType.THE_END;
-        }
-        if ("the_overworld".contains(name) || "surface".contains(name)) {
-            return DimensionType.OVERWORLD;
-        }
-        if ("the_nether".contains(name) || "hell".contains(name)) {
-            return DimensionType.NETHER;
-        }
-        return ctx.world().provider.getDimensionType();
-    }
-
-}

src/api/java/baritone/api/utils/Helper.java

@@ -23,6 +23,9 @@ import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.TextComponentString;
 import net.minecraft.util.text.TextFormatting;
 
+import java.util.Arrays;
+import java.util.stream.Stream;
+
 /**
  * @author Brady
  * @since 8/1/2018
@@ -34,16 +37,26 @@ public interface Helper {
      */
     Helper HELPER = new Helper() {};
 
-    ITextComponent MESSAGE_PREFIX = new TextComponentString(String.format(
-            "%s[%sBaritone%s]%s",
-            TextFormatting.DARK_PURPLE,
-            TextFormatting.LIGHT_PURPLE,
-            TextFormatting.DARK_PURPLE,
-            TextFormatting.GRAY
-    ));
-
+    /**
+     * Instance of the game
+     */
     Minecraft mc = Minecraft.getMinecraft();
 
+    static ITextComponent getPrefix() {
+        // Inner text component
+        ITextComponent baritone = new TextComponentString(BaritoneAPI.getSettings().shortBaritonePrefix.value ? "B" : "Baritone");
+        baritone.getStyle().setColor(TextFormatting.LIGHT_PURPLE);
+
+        // Outer brackets
+        ITextComponent prefix = new TextComponentString("");
+        prefix.getStyle().setColor(TextFormatting.DARK_PURPLE);
+        prefix.appendText("[");
+        prefix.appendSibling(baritone);
+        prefix.appendText("]");
+
+        return prefix;
+    }
+
     /**
      * Send a message to chat only if chatDebug is on
      *
@@ -59,14 +72,40 @@ public interface Helper {
     }
 
     /**
-     * Send a message to chat regardless of chatDebug (should only be used for critically important messages, or as a direct response to a chat command)
+     * Send components to chat with the [Baritone] prefix
+     *
+     * @param components The components to send
+     */
+    default void logDirect(ITextComponent... components) {
+        ITextComponent component = new TextComponentString("");
+        component.appendSibling(getPrefix());
+        component.appendSibling(new TextComponentString(" "));
+        Arrays.asList(components).forEach(component::appendSibling);
+        Minecraft.getMinecraft().addScheduledTask(() -> BaritoneAPI.getSettings().logger.value.accept(component));
+    }
+
+    /**
+     * Send a message to chat regardless of chatDebug (should only be used for critically important messages, or as a
+     * direct response to a chat command)
+     *
+     * @param message The message to display in chat
+     * @param color   The color to print that message in
+     */
+    default void logDirect(String message, TextFormatting color) {
+        Stream.of(message.split("\n")).forEach(line -> {
+            ITextComponent component = new TextComponentString(line.replace("\t", "    "));
+            component.getStyle().setColor(color);
+            logDirect(component);
+        });
+    }
+
+    /**
+     * Send a message to chat regardless of chatDebug (should only be used for critically important messages, or as a
+     * direct response to a chat command)
      *
      * @param message The message to display in chat
      */
     default void logDirect(String message) {
-        ITextComponent component = MESSAGE_PREFIX.createCopy();
-        component.getStyle().setColor(TextFormatting.GRAY);
-        component.appendSibling(new TextComponentString(" " + message));
-        Minecraft.getMinecraft().addScheduledTask(() -> BaritoneAPI.getSettings().logger.value.accept(component));
+        logDirect(message, TextFormatting.GRAY);
     }
 }

src/api/java/baritone/api/utils/IPlayerContext.java

@@ -47,9 +47,21 @@ public interface IPlayerContext {
     default BetterBlockPos playerFeet() {
         // TODO find a better way to deal with soul sand!!!!!
         BetterBlockPos feet = new BetterBlockPos(player().posX, player().posY + 0.1251, player().posZ);
-        if (world().getBlockState(feet).getBlock() instanceof BlockSlab) {
-            return feet.up();
-        }
+
+        // sometimes when calling this from another thread or while world is null, it'll throw a NullPointerException
+        // that causes the game to immediately crash
+        //
+        // so of course crashing on 2b is horribly bad due to queue times and logout spot
+        // catch the NPE and ignore it if it does happen
+        //
+        // this does not impact performance at all since we're not null checking constantly
+        // if there is an exception, the only overhead is Java generating the exception object... so we can ignore it
+        try {
+            if (world().getBlockState(feet).getBlock() instanceof BlockSlab) {
+                return feet.up();
+            }
+        } catch (NullPointerException ignored) {}
+
         return feet;
     }
 

src/api/java/baritone/api/utils/ISchematic.java

@@ -20,9 +20,11 @@ package baritone.api.utils;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.util.EnumFacing;
 
+import java.util.List;
+
 /**
- * Basic representation of a schematic. Provides the dimensions and
- * the desired statefor a given position relative to the origin.
+ * Basic representation of a schematic. Provides the dimensions and the desired state for a given position relative to
+ * the origin.
  *
  * @author leijurv
  */
@@ -36,12 +38,13 @@ public interface ISchematic {
      * However, in the case of something like a map art, anything that's below the level of the map art doesn't matter,
      * so this function should return false in that case. (i.e. it doesn't really have to be air below the art blocks)
      *
-     * @param x The x position of the block, relative to the origin
-     * @param y The y position of the block, relative to the origin
-     * @param z The z position of the block, relative to the origin
+     * @param x            The x position of the block, relative to the origin
+     * @param y            The y position of the block, relative to the origin
+     * @param z            The z position of the block, relative to the origin
+     * @param currentState The current state of that block in the world, or null
      * @return Whether or not the specified position is within the bounds of this schematic
      */
-    default boolean inSchematic(int x, int y, int z) {
+    default boolean inSchematic(int x, int y, int z, IBlockState currentState) {
         return x >= 0 && x < widthX() && y >= 0 && y < heightY() && z >= 0 && z < lengthZ();
     }
 
@@ -61,12 +64,14 @@ public interface ISchematic {
     /**
      * Returns the desired block state at a given (X, Y, Z) position relative to the origin (0, 0, 0).
      *
-     * @param x The x position of the block, relative to the origin
-     * @param y The y position of the block, relative to the origin
-     * @param z The z position of the block, relative to the origin
+     * @param x               The x position of the block, relative to the origin
+     * @param y               The y position of the block, relative to the origin
+     * @param z               The z position of the block, relative to the origin
+     * @param current         The current state of that block in the world, or null
+     * @param approxPlaceable The list of blockstates estimated to be placeable
      * @return The desired block state at the specified position
      */
-    IBlockState desiredState(int x, int y, int z);
+    IBlockState desiredState(int x, int y, int z, IBlockState current, List<IBlockState> approxPlaceable);
 
     /**
      * @return The width (X axis length) of this schematic
@@ -82,4 +87,4 @@ public interface ISchematic {
      * @return The length (Z axis length) of this schematic
      */
     int lengthZ();
-}
+}

src/api/java/baritone/api/utils/MyChunkPos.java

@@ -34,4 +34,4 @@ public class MyChunkPos {
     public String toString() {
         return x + ", " + z;
     }
-}
+}

src/api/java/baritone/api/utils/SettingsUtil.java

@@ -34,7 +34,6 @@ import java.nio.file.Files;
 import java.nio.file.NoSuchFileException;
 import java.nio.file.Path;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
 import java.util.function.Consumer;
@@ -42,6 +41,7 @@ import java.util.function.Function;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import static net.minecraft.client.Minecraft.getMinecraft;
 
@@ -121,6 +121,40 @@ public class SettingsUtil {
         return modified;
     }
 
+    /**
+     * Gets the type of a setting and returns it as a string, with package names stripped.
+     * <p>
+     * For example, if the setting type is {@code java.util.List<java.lang.String>}, this function returns
+     * {@code List<String>}.
+     *
+     * @param setting The setting
+     * @return The type
+     */
+    public static String settingTypeToString(Settings.Setting setting) {
+        return setting.getType().getTypeName()
+                .replaceAll("(?:\\w+\\.)+(\\w+)", "$1");
+    }
+
+    public static <T> String settingValueToString(Settings.Setting<T> setting, T value) throws IllegalArgumentException {
+        Parser io = Parser.getParser(setting.getType());
+
+        if (io == null) {
+            throw new IllegalStateException("Missing " + setting.getValueClass() + " " + setting.getName());
+        }
+
+        return io.toString(new ParserContext(setting), value);
+    }
+
+    public static String settingValueToString(Settings.Setting setting) throws IllegalArgumentException {
+        //noinspection unchecked
+        return settingValueToString(setting, setting.value);
+    }
+
+    public static String settingDefaultToString(Settings.Setting setting) throws IllegalArgumentException {
+        //noinspection unchecked
+        return settingValueToString(setting, setting.defaultValue);
+    }
+
     public static String maybeCensor(int coord) {
         if (BaritoneAPI.getSettings().censorCoordinates.value) {
             return "<censored>";
@@ -133,11 +167,8 @@ public class SettingsUtil {
         if (setting.getName().equals("logger")) {
             return "logger";
         }
-        Parser io = Parser.getParser(setting.getType());
-        if (io == null) {
-            throw new IllegalStateException("Missing " + setting.getValueClass() + " " + setting.getName());
-        }
-        return setting.getName() + " " + io.toString(new ParserContext(setting), setting.value);
+
+        return setting.getName() + " " + settingValueToString(setting);
     }
 
     public static void parseAndApply(Settings settings, String settingName, String settingValue) throws IllegalStateException, NumberFormatException {
@@ -183,6 +214,7 @@ public class SettingsUtil {
         INTEGER(Integer.class, Integer::parseInt),
         FLOAT(Float.class, Float::parseFloat),
         LONG(Long.class, Long::parseLong),
+        STRING(String.class, String::new),
         ENUMFACING(EnumFacing.class, EnumFacing::byName),
         COLOR(
                 Color.class,
@@ -210,7 +242,7 @@ public class SettingsUtil {
                 Type type = ((ParameterizedType) context.getSetting().getType()).getActualTypeArguments()[0];
                 Parser parser = Parser.getParser(type);
 
-                return Arrays.stream(raw.split(","))
+                return Stream.of(raw.split(","))
                         .map(s -> parser.parse(context, s))
                         .collect(Collectors.toList());
             }
@@ -269,7 +301,7 @@ public class SettingsUtil {
         }
 
         public static Parser getParser(Type type) {
-            return Arrays.stream(values())
+            return Stream.of(values())
                     .filter(parser -> parser.accepts(type))
                     .findFirst().orElse(null);
         }

src/api/java/baritone/api/utils/command/Command.java

@@ -0,0 +1,112 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command;
+
+import baritone.api.IBaritone;
+import baritone.api.utils.Helper;
+import baritone.api.utils.IPlayerContext;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.execution.ICommandExecution;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public abstract class Command implements Helper {
+
+    protected IBaritone baritone;
+    protected IPlayerContext ctx;
+
+    /**
+     * The names of this command. This is what you put after the command prefix.
+     */
+    public final List<String> names;
+
+    /**
+     * Creates a new Baritone control command.
+     *
+     * @param names The names of this command. This is what you put after the command prefix.
+     */
+    protected Command(IBaritone baritone, List<String> names) {
+        this.names = names.stream()
+                .map(s -> s.toLowerCase(Locale.US))
+                .collect(Collectors.toList());
+        this.baritone = baritone;
+        this.ctx = baritone.getPlayerContext();
+    }
+
+    protected Command(IBaritone baritone, String name) {
+        this(baritone, Collections.singletonList(name));
+    }
+
+    /**
+     * Executes this command with the specified arguments.
+     *
+     * @param execution The command execution to execute this command with
+     */
+    public final void execute(ICommandExecution execution) throws CommandException {
+        this.executed(execution.getLabel(), execution.getArguments());
+    }
+
+    /**
+     * Tab completes this command with the specified arguments. Any exception that is thrown by
+     * {@link #tabCompleted(String, ArgConsumer)} will be caught by this method, and then {@link Stream#empty()}
+     * will be returned.
+     *
+     * @param execution The command execution to tab complete
+     * @return The list of completions.
+     */
+    public final Stream<String> tabComplete(ICommandExecution execution) {
+        try {
+            return this.tabCompleted(execution.getLabel(), execution.getArguments());
+        } catch (Throwable t) {
+            return Stream.empty();
+        }
+    }
+
+    /**
+     * Called when this command is executed.
+     */
+    protected abstract void executed(String label, ArgConsumer args) throws CommandException;
+
+    /**
+     * Called when the command needs to tab complete. Return a Stream representing the entries to put in the completions
+     * list.
+     */
+    protected abstract Stream<String> tabCompleted(String label, ArgConsumer args) throws CommandException;
+
+    /**
+     * @return A <b>single-line</b> string containing a short description of this command's purpose.
+     */
+    public abstract String getShortDesc();
+
+    /**
+     * @return A list of lines that will be printed by the help command when the user wishes to view them.
+     */
+    public abstract List<String> getLongDesc();
+
+    /**
+     * @return {@code true} if this command should be hidden from the help menu
+     */
+    public boolean hiddenFromHelp() {
+        return false;
+    }
+}

src/api/java/baritone/api/utils/command/IBaritoneChatControl.java

@@ -0,0 +1,42 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command;
+
+import baritone.api.Settings;
+
+import java.util.UUID;
+
+/**
+ * @author Brady
+ * @since 9/26/2019
+ */
+public interface IBaritoneChatControl {
+
+    /**
+     * In certain cases chat components need to execute commands for you. For example, the paginator automatically runs
+     * commands when you click the forward and back arrows to show you the previous/next page.
+     * <p>
+     * If the prefix is changed in the meantime, then the command will go to chat. That's no good. So here's a permanent
+     * prefix that forces a command to run, regardless of the current prefix, chat/prefix control being enabled, etc.
+     * <p>
+     * If used right (by both developers and users), it should be impossible to expose a command accidentally to the
+     * server. As a rule of thumb, if you have a clickable chat component, always use this prefix. If you're suggesting
+     * a command (a component that puts text into your text box, or something else), use {@link Settings#prefix}.
+     */
+    String FORCE_COMMAND_PREFIX = String.format("<<%s>>", UUID.randomUUID().toString());
+}

src/api/java/baritone/api/utils/command/argparser/ArgParserManager.java

@@ -0,0 +1,105 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.argparser;
+
+import baritone.api.utils.command.argument.CommandArgument;
+import baritone.api.utils.command.exception.CommandInvalidTypeException;
+import baritone.api.utils.command.exception.CommandNoParserForTypeException;
+import baritone.api.utils.command.exception.CommandUnhandledException;
+import baritone.api.utils.command.registry.Registry;
+
+public class ArgParserManager {
+
+    public static final Registry<IArgParser> REGISTRY = new Registry<>();
+
+    static {
+        DefaultArgParsers.ALL.forEach(REGISTRY::register);
+    }
+
+    /**
+     * @param type The type trying to be parsed
+     * @return A parser that can parse arguments into this class, if found.
+     */
+    public static <T> IArgParser.Stateless<T> getParserStateless(Class<T> type) {
+        //noinspection unchecked
+        return REGISTRY.descendingStream()
+                .filter(IArgParser.Stateless.class::isInstance)
+                .map(IArgParser.Stateless.class::cast)
+                .filter(parser -> parser.getTarget().isAssignableFrom(type))
+                .findFirst()
+                .orElse(null);
+    }
+
+    /**
+     * @param type The type trying to be parsed
+     * @return A parser that can parse arguments into this class, if found.
+     */
+    public static <T, S> IArgParser.Stated<T, S> getParserStated(Class<T> type, Class<S> stateKlass) {
+        //noinspection unchecked
+        return REGISTRY.descendingStream()
+                .filter(IArgParser.Stated.class::isInstance)
+                .map(IArgParser.Stated.class::cast)
+                .filter(parser -> parser.getTarget().isAssignableFrom(type))
+                .filter(parser -> parser.getStateType().isAssignableFrom(stateKlass))
+                .map(IArgParser.Stated.class::cast)
+                .findFirst()
+                .orElse(null);
+    }
+
+    /**
+     * Attempt to parse the specified argument with a stateless {@link IArgParser} that outputs the specified class.
+     *
+     * @param type  The type to try and parse the argument into.
+     * @param arg   The argument to parse.
+     * @return An instance of the specified class.
+     * @throws CommandInvalidTypeException If the parsing failed
+     */
+    public static <T> T parseStateless(Class<T> type, CommandArgument arg) throws CommandInvalidTypeException {
+        IArgParser.Stateless<T> parser = getParserStateless(type);
+        if (parser == null) {
+            throw new CommandNoParserForTypeException(type);
+        }
+        try {
+            return parser.parseArg(arg);
+        } catch (Exception exc) {
+            throw new CommandInvalidTypeException(arg, type.getSimpleName());
+        }
+    }
+
+    /**
+     * Attempt to parse the specified argument with a stated {@link IArgParser} that outputs the specified class.
+     *
+     * @param type  The type to try and parse the argument into.
+     * @param arg   The argument to parse.
+     * @param state The state to pass to the {@link IArgParser.Stated}.
+     * @return An instance of the specified class.
+     * @throws CommandInvalidTypeException If the parsing failed
+     * @see IArgParser.Stated
+     */
+    public static <T, S> T parseStated(Class<T> type, Class<S> stateKlass, CommandArgument arg, S state) throws CommandInvalidTypeException {
+        IArgParser.Stated<T, S> parser = getParserStated(type, stateKlass);
+        if (parser == null) {
+            throw new CommandNoParserForTypeException(type);
+        }
+        try {
+            return parser.parseArg(arg, state);
+        } catch (Exception exc) {
+            throw new CommandInvalidTypeException(arg, type.getSimpleName());
+        }
+    }
+}

src/api/java/baritone/api/utils/command/argparser/DefaultArgParsers.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.argparser;
+
+import baritone.api.utils.command.argument.CommandArgument;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+
+public class DefaultArgParsers {
+
+    public enum IntArgumentParser implements IArgParser.Stateless<Integer> {
+        INSTANCE;
+
+        @Override
+        public Class<Integer> getTarget() {
+            return Integer.class;
+        }
+
+        @Override
+        public Integer parseArg(CommandArgument arg) throws RuntimeException {
+            return Integer.parseInt(arg.value);
+        }
+    }
+
+    public enum LongArgumentParser implements IArgParser.Stateless<Long> {
+        INSTANCE;
+
+        @Override
+        public Class<Long> getTarget() {
+            return Long.class;
+        }
+
+        @Override
+        public Long parseArg(CommandArgument arg) throws RuntimeException {
+            return Long.parseLong(arg.value);
+        }
+    }
+
+    public enum FloatArgumentParser implements IArgParser.Stateless<Float> {
+        INSTANCE;
+
+        @Override
+        public Class<Float> getTarget() {
+            return Float.class;
+        }
+
+        @Override
+        public Float parseArg(CommandArgument arg) throws RuntimeException {
+            String value = arg.value;
+            if (!value.matches("^([+-]?(?:\\d+(?:\\.\\d*)?|\\.\\d+)|)$")) {
+                throw new IllegalArgumentException("failed float format check");
+            }
+            return Float.parseFloat(value);
+        }
+    }
+
+    public enum DoubleArgumentParser implements IArgParser.Stateless<Double> {
+        INSTANCE;
+
+        @Override
+        public Class<Double> getTarget() {
+            return Double.class;
+        }
+
+        @Override
+        public Double parseArg(CommandArgument arg) throws RuntimeException {
+            String value = arg.value;
+            if (!value.matches("^([+-]?(?:\\d+(?:\\.\\d*)?|\\.\\d+)|)$")) {
+                throw new IllegalArgumentException("failed double format check");
+            }
+            return Double.parseDouble(value);
+        }
+    }
+
+    public static class BooleanArgumentParser implements IArgParser.Stateless<Boolean> {
+
+        public static final BooleanArgumentParser INSTANCE = new BooleanArgumentParser();
+        public static final List<String> TRUTHY_VALUES = Arrays.asList("1", "true", "yes", "t", "y", "on", "enable");
+        public static final List<String> FALSY_VALUES = Arrays.asList("0", "false", "no", "f", "n", "off", "disable");
+
+        @Override
+        public Class<Boolean> getTarget() {
+            return Boolean.class;
+        }
+
+        @Override
+        public Boolean parseArg(CommandArgument arg) throws RuntimeException {
+            String value = arg.value;
+            if (TRUTHY_VALUES.contains(value.toLowerCase(Locale.US))) {
+                return true;
+            } else if (FALSY_VALUES.contains(value.toLowerCase(Locale.US))) {
+                return false;
+            } else {
+                throw new IllegalArgumentException("invalid boolean");
+            }
+        }
+    }
+
+    public static final List<IArgParser<?>> ALL = Arrays.asList(
+            IntArgumentParser.INSTANCE,
+            LongArgumentParser.INSTANCE,
+            FloatArgumentParser.INSTANCE,
+            DoubleArgumentParser.INSTANCE,
+            BooleanArgumentParser.INSTANCE
+    );
+}

src/api/java/baritone/api/utils/command/argparser/IArgParser.java

@@ -0,0 +1,64 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.argparser;
+
+import baritone.api.utils.command.argument.CommandArgument;
+
+public interface IArgParser<T> {
+
+    /**
+     * @return the class of this parser.
+     */
+    Class<T> getTarget();
+
+    /**
+     * A stateless argument parser is just that. It takes a {@link CommandArgument} and outputs its type.
+     *
+     * @see ArgParserManager#REGISTRY
+     */
+    interface Stateless<T> extends IArgParser<T> {
+
+        /**
+         * @param arg The argument to parse.
+         * @return What it was parsed into.
+         * @throws RuntimeException if you want the parsing to fail. The exception will be caught and turned into an
+         *                          appropriate error.
+         */
+        T parseArg(CommandArgument arg) throws Exception;
+    }
+
+    /**
+     * A stated argument parser is similar to a stateless one. It also takes a {@link CommandArgument}, but it also
+     * takes a second argument that can be any type, referred to as the state.
+     *
+     * @see ArgParserManager#REGISTRY
+     */
+    interface Stated<T, S> extends IArgParser<T> {
+
+        Class<S> getStateType();
+
+        /**
+         * @param arg   The argument to parse.
+         * @param state Can be anything.
+         * @return What it was parsed into.
+         * @throws RuntimeException if you want the parsing to fail. The exception will be caught and turned into an
+         *                          appropriate error.
+         */
+        T parseArg(CommandArgument arg, S state) throws Exception;
+    }
+}

src/api/java/baritone/api/utils/command/argument/CommandArgument.java

@@ -0,0 +1,170 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.argument;
+
+import baritone.api.utils.command.argparser.ArgParserManager;
+import baritone.api.utils.command.argparser.IArgParser;
+import baritone.api.utils.command.exception.CommandInvalidArgumentException;
+import baritone.api.utils.command.exception.CommandInvalidTypeException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.EnumFacing;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+/**
+ * A {@link CommandArgument} is an immutable object representing one command argument. It contains data on the index of
+ * that argument, its value, and the rest of the string that argument was found in
+ * <p>
+ * You're recommended to use {@link ArgConsumer}s to handle these.
+ */
+public class CommandArgument {
+
+    public final int index;
+    public final String value;
+    public final String rawRest;
+    public final static Pattern argPattern = Pattern.compile("\\S+");
+
+    private CommandArgument(int index, String value, String rawRest) {
+        this.index = index;
+        this.value = value;
+        this.rawRest = rawRest;
+    }
+
+    /**
+     * Gets an enum value from the enum class with the same name as this argument's value
+     * <p>
+     * For example if you getEnum as an {@link EnumFacing}, and this argument's value is "up", it will return {@link
+     * EnumFacing#UP}
+     *
+     * @param enumClass The enum class to search
+     * @return An enum constant of that class with the same name as this argument's value
+     * @throws CommandInvalidTypeException If the constant couldn't be found
+     * @see ArgConsumer#peekEnum(Class)
+     * @see ArgConsumer#peekEnum(Class, int)
+     * @see ArgConsumer#peekEnumOrNull(Class)
+     * @see ArgConsumer#peekEnumOrNull(Class, int)
+     * @see ArgConsumer#getEnum(Class)
+     * @see ArgConsumer#getEnumOrNull(Class)
+     */
+    public <E extends Enum<?>> E getEnum(Class<E> enumClass) throws CommandInvalidTypeException {
+        return Stream.of(enumClass.getEnumConstants())
+                .filter(e -> e.name().equalsIgnoreCase(value))
+                .findFirst()
+                .orElseThrow(() -> new CommandInvalidTypeException(this, enumClass.getSimpleName()));
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse this argument into the specified class
+     *
+     * @param type The class to parse this argument into
+     * @return An instance of the specified type
+     * @throws CommandInvalidTypeException If the parsing failed
+     */
+    public <T> T getAs(Class<T> type) throws CommandInvalidTypeException {
+        return ArgParserManager.parseStateless(type, this);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse this argument into the specified class
+     *
+     * @param type The class to parse this argument into
+     * @return If the parser succeeded
+     */
+    public <T> boolean is(Class<T> type) {
+        try {
+            getAs(type);
+            return true;
+        } catch (Throwable t) {
+            return false;
+        }
+    }
+
+    /**
+     * Tries to use a <b>stated</b> {@link IArgParser} to parse this argument into the specified class
+     *
+     * @param type The class to parse this argument into
+     * @return An instance of the specified type
+     * @throws CommandInvalidTypeException     If the parsing failed
+     */
+    @SuppressWarnings("UnusedReturnValue")
+    public <T, S> T getAs(Class<T> type, Class<S> stateType, S state) throws CommandInvalidTypeException {
+        return ArgParserManager.parseStated(type, stateType, this, state);
+    }
+
+    /**
+     * Tries to use a <b>stated</b> {@link IArgParser} to parse this argument into the specified class
+     *
+     * @param type The class to parse this argument into
+     * @return If the parser succeeded
+     */
+    public <T, S> boolean is(Class<T> type, Class<S> stateType, S state) {
+        try {
+            getAs(type, stateType, state);
+            return true;
+        } catch (Throwable t) {
+            return false;
+        }
+    }
+
+    /**
+     * Turn a string into a list of {@link CommandArgument}s. This is needed because of {@link CommandArgument#rawRest}
+     *
+     * @param string            The string to convert
+     * @param preserveEmptyLast If the string ends with whitespace, add an empty {@link CommandArgument} to the end This
+     *                          is useful for tab completion
+     * @return A list of {@link CommandArgument}s
+     */
+    public static List<CommandArgument> from(String string, boolean preserveEmptyLast) {
+        List<CommandArgument> args = new ArrayList<>();
+        Matcher argMatcher = argPattern.matcher(string);
+        int lastEnd = -1;
+        while (argMatcher.find()) {
+            args.add(new CommandArgument(
+                    args.size(),
+                    argMatcher.group(),
+                    string.substring(argMatcher.start())
+            ));
+            lastEnd = argMatcher.end();
+        }
+        if (preserveEmptyLast && lastEnd < string.length()) {
+            args.add(new CommandArgument(args.size(), "", ""));
+        }
+        return args;
+    }
+
+    /**
+     * @see #from(String, boolean)
+     */
+    public static List<CommandArgument> from(String string) {
+        return from(string, false);
+    }
+
+    /**
+     * Returns an "unknown" {@link CommandArgument}. This shouldn't be used unless you absolutely have no information -
+     * ESPECIALLY not with {@link CommandInvalidArgumentException}s
+     *
+     * @return The unknown {@link CommandArgument}
+     */
+    public static CommandArgument unknown() {
+        return new CommandArgument(-1, "<unknown>", "");
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/BlockById.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.tabcomplete.TabCompleteHelper;
+import net.minecraft.block.Block;
+import net.minecraft.init.Blocks;
+import net.minecraft.util.ResourceLocation;
+
+import java.util.stream.Stream;
+
+public enum BlockById implements IDatatypeFor<Block> {
+    INSTANCE;
+
+    @Override
+    public Block get(IDatatypeContext ctx) throws CommandException {
+        ResourceLocation id = new ResourceLocation(ctx.getConsumer().getString());
+        Block block;
+        if ((block = Block.REGISTRY.getObject(id)) == Blocks.AIR) {
+            throw new IllegalArgumentException("no block found by that id");
+        }
+        return block;
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        return new TabCompleteHelper()
+                .append(
+                        Block.REGISTRY.getKeys()
+                                .stream()
+                                .map(Object::toString)
+                )
+                .filterPrefixNamespaced(ctx.getConsumer().getString())
+                .sortAlphabetically()
+                .stream();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/EntityClassById.java

@@ -0,0 +1,49 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.tabcomplete.TabCompleteHelper;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityList;
+import net.minecraft.util.ResourceLocation;
+
+import java.util.stream.Stream;
+
+public enum EntityClassById implements IDatatypeFor<Class<? extends Entity>> {
+    INSTANCE;
+
+    @Override
+    public Class<? extends Entity> get(IDatatypeContext ctx) throws CommandException {
+        ResourceLocation id = new ResourceLocation(ctx.getConsumer().getString());
+        Class<? extends Entity> entity;
+        if ((entity = EntityList.REGISTRY.getObject(id)) == null) {
+            throw new IllegalArgumentException("no entity found by that id");
+        }
+        return entity;
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        return new TabCompleteHelper()
+                .append(EntityList.getEntityNameList().stream().map(Object::toString))
+                .filterPrefixNamespaced(ctx.getConsumer().getString())
+                .sortAlphabetically()
+                .stream();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/ForBlockOptionalMeta.java

@@ -0,0 +1,37 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.BlockOptionalMeta;
+import baritone.api.utils.command.exception.CommandException;
+
+import java.util.stream.Stream;
+
+public enum ForBlockOptionalMeta implements IDatatypeFor<BlockOptionalMeta> {
+    INSTANCE;
+
+    @Override
+    public BlockOptionalMeta get(IDatatypeContext ctx) throws CommandException {
+        return new BlockOptionalMeta(ctx.getConsumer().getString());
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        return ctx.getConsumer().tabCompleteDatatype(BlockById.INSTANCE);
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/ForEnumFacing.java

@@ -0,0 +1,43 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.tabcomplete.TabCompleteHelper;
+import net.minecraft.util.EnumFacing;
+
+import java.util.Locale;
+import java.util.stream.Stream;
+
+public enum ForEnumFacing implements IDatatypeFor<EnumFacing> {
+    INSTANCE;
+
+    @Override
+    public EnumFacing get(IDatatypeContext ctx) throws CommandException {
+        return EnumFacing.valueOf(ctx.getConsumer().getString().toUpperCase(Locale.US));
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        return new TabCompleteHelper()
+                .append(Stream.of(EnumFacing.values())
+                        .map(EnumFacing::getName).map(String::toLowerCase))
+                .filterPrefix(ctx.getConsumer().getString())
+                .stream();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/ForWaypoints.java

@@ -0,0 +1,81 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.IBaritone;
+import baritone.api.cache.IWaypoint;
+import baritone.api.cache.IWaypointCollection;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.tabcomplete.TabCompleteHelper;
+
+import java.util.Comparator;
+import java.util.stream.Stream;
+
+public enum ForWaypoints implements IDatatypeFor<IWaypoint[]> {
+    INSTANCE;
+
+    @Override
+    public IWaypoint[] get(IDatatypeContext ctx) throws CommandException {
+        final String input = ctx.getConsumer().getString();
+        final IWaypoint.Tag tag = IWaypoint.Tag.getByName(input);
+
+        // If the input doesn't resolve to a valid tag, resolve by name
+        return tag == null
+                ? getWaypointsByName(ctx.getBaritone(), input)
+                : getWaypointsByTag(ctx.getBaritone(), tag);
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        return new TabCompleteHelper()
+                .append(getWaypointNames(ctx.getBaritone()))
+                .sortAlphabetically()
+                .prepend(IWaypoint.Tag.getAllNames())
+                .filterPrefix(ctx.getConsumer().getString())
+                .stream();
+    }
+
+    public static IWaypointCollection waypoints(IBaritone baritone) {
+        return baritone.getWorldProvider().getCurrentWorld().getWaypoints();
+    }
+
+    public static IWaypoint[] getWaypoints(IBaritone baritone) {
+        return waypoints(baritone).getAllWaypoints().stream()
+                .sorted(Comparator.comparingLong(IWaypoint::getCreationTimestamp).reversed())
+                .toArray(IWaypoint[]::new);
+    }
+
+    public static String[] getWaypointNames(IBaritone baritone) {
+        return Stream.of(getWaypoints(baritone))
+                .map(IWaypoint::getName)
+                .filter(name -> !name.isEmpty())
+                .toArray(String[]::new);
+    }
+
+    public static IWaypoint[] getWaypointsByTag(IBaritone baritone, IWaypoint.Tag tag) {
+        return waypoints(baritone).getByTag(tag).stream()
+                .sorted(Comparator.comparingLong(IWaypoint::getCreationTimestamp).reversed())
+                .toArray(IWaypoint[]::new);
+    }
+
+    public static IWaypoint[] getWaypointsByName(IBaritone baritone, String name) {
+        return Stream.of(getWaypoints(baritone))
+                .filter(waypoint -> waypoint.getName().equalsIgnoreCase(name))
+                .toArray(IWaypoint[]::new);
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/IDatatype.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.argparser.IArgParser;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+import java.util.stream.Stream;
+
+/**
+ * An {@link IDatatype} is similar to an {@link IArgParser} in the sense that it is capable of consuming an argument
+ * to transform it into a usable form as the code desires.
+ * <p>
+ * A fundamental difference is that an {@link IDatatype} is capable of consuming multiple arguments. For example,
+ * {@link RelativeBlockPos} is an {@link IDatatypePost} which requires at least 3 {@link RelativeCoordinate} arguments
+ * to be specified.
+ * <p>
+ * Another difference is that an {@link IDatatype} can be tab-completed, providing comprehensive auto completion
+ * that can substitute based on existing input or provide possibilities for the next piece of input.
+ *
+ * @see IDatatypeContext
+ * @see IDatatypeFor
+ * @see IDatatypePost
+ */
+public interface IDatatype {
+
+    /**
+     * Attempts to complete missing or partial input provided through the {@link ArgConsumer} provided by
+     * {@link IDatatypeContext#getConsumer()} in order to aide the user in executing commands.
+     * <p>
+     * One benefit over datatypes over {@link IArgParser}s is that instead of each command trying to guess what values
+     * the datatype will accept, or simply not tab completing at all, datatypes that support tab completion can provide
+     * accurate information using the same methods used to parse arguments in the first place.
+     *
+     * @param ctx The argument consumer to tab complete
+     * @return A stream representing the strings that can be tab completed. DO NOT INCLUDE SPACES IN ANY STRINGS.
+     * @see ArgConsumer#tabCompleteDatatype(IDatatype)
+     */
+    Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException;
+}

src/api/java/baritone/api/utils/command/datatypes/IDatatypeContext.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.IBaritone;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+/**
+ * Provides an {@link IDatatype} with contextual information so
+ * that it can perform the desired operation on the target level.
+ *
+ * @see IDatatype
+ *
+ * @author Brady
+ * @since 9/26/2019
+ */
+public interface IDatatypeContext {
+
+    /**
+     * Provides the {@link IBaritone} instance that is associated with the action relating to datatype handling.
+     *
+     * @return The context {@link IBaritone} instance.
+     */
+    IBaritone getBaritone();
+
+    /**
+     * Provides the {@link ArgConsumer} to fetch input information from.
+     *
+     * @return The context {@link ArgConsumer}.
+     */
+    ArgConsumer getConsumer();
+}

src/api/java/baritone/api/utils/command/datatypes/IDatatypeFor.java

@@ -0,0 +1,44 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+
+import java.util.function.Supplier;
+
+/**
+ * An {@link IDatatype} which acts as a {@link Supplier}, in essence. The only difference
+ * is that it requires an {@link IDatatypeContext} to be provided due to the expectation that
+ * implementations of {@link IDatatype} are singletons.
+ */
+public interface IDatatypeFor<T> extends IDatatype {
+
+    /**
+     * Consumes the desired amount of arguments from the specified {@link IDatatypeContext}, and
+     * then returns the parsed value. This method will more than likely return a {@link IllegalArgumentException}
+     * if the expected input does not conform to a parseable value. As far as a {@link CommandException} being
+     * thrown is concerned, see the note below for specifics.
+     *
+     * @see IDatatypeContext
+     *
+     * @param ctx The context
+     * @return The parsed data-type
+     * @throws CommandException If there was an issue parsing using another type or arguments could not be polled.
+     */
+    T get(IDatatypeContext ctx) throws CommandException;
+}

src/api/java/baritone/api/utils/command/datatypes/IDatatypePost.java

@@ -0,0 +1,41 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+
+import java.util.function.Function;
+
+/**
+ * An {@link IDatatype} which acts as a {@link Function}, in essence. The only difference
+ * is that it requires an {@link IDatatypeContext} to be provided due to the expectation that
+ * implementations of {@link IDatatype} are singletons.
+ */
+public interface IDatatypePost<T, O> extends IDatatype {
+
+    /**
+     * Takes the expected input and transforms it based on the value held by {@code original}. If {@code original}
+     * is null, it is expected that the implementation of this method has a case to handle it, such that a
+     * {@link NullPointerException} will never be thrown as a result.
+     *
+     * @param ctx      The datatype context
+     * @param original The transformable value
+     * @return The transformed value
+     */
+    T apply(IDatatypeContext ctx, O original) throws CommandException;
+}

src/api/java/baritone/api/utils/command/datatypes/IDatatypePostFunction.java

@@ -0,0 +1,29 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+
+/**
+ * @author Brady
+ * @since 9/26/2019
+ */
+public interface IDatatypePostFunction<T, O> {
+
+    T apply(O original) throws CommandException;
+}

src/api/java/baritone/api/utils/command/datatypes/NearbyPlayer.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.IBaritone;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.tabcomplete.TabCompleteHelper;
+import net.minecraft.entity.player.EntityPlayer;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * An {@link IDatatype} used to resolve nearby players, those within
+ * render distance of the target {@link IBaritone} instance.
+ */
+public enum NearbyPlayer implements IDatatypeFor<EntityPlayer> {
+    INSTANCE;
+
+    @Override
+    public EntityPlayer get(IDatatypeContext ctx) throws CommandException {
+        final String username = ctx.getConsumer().getString();
+        return getPlayers(ctx).stream()
+                .filter(s -> s.getName().equalsIgnoreCase(username))
+                .findFirst().orElse(null);
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        return new TabCompleteHelper()
+                .append(getPlayers(ctx).stream().map(EntityPlayer::getName))
+                .filterPrefix(ctx.getConsumer().getString())
+                .sortAlphabetically()
+                .stream();
+    }
+
+    private static List<EntityPlayer> getPlayers(IDatatypeContext ctx) {
+        return ctx.getBaritone().getPlayerContext().world().playerEntities;
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeBlockPos.java

@@ -0,0 +1,57 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+import java.util.stream.Stream;
+
+public enum RelativeBlockPos implements IDatatypePost<BetterBlockPos, BetterBlockPos> {
+    INSTANCE;
+
+    @Override
+    public BetterBlockPos apply(IDatatypeContext ctx, BetterBlockPos origin) throws CommandException {
+        if (origin == null) {
+            origin = BetterBlockPos.ORIGIN;
+        }
+
+        final ArgConsumer consumer = ctx.getConsumer();
+        return new BetterBlockPos(
+                consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.x),
+                consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.y),
+                consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.z)
+        );
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        final ArgConsumer consumer = ctx.getConsumer();
+        if (consumer.hasAny() && !consumer.has(4)) {
+            while (consumer.has(2)) {
+                if (consumer.peekDatatypeOrNull(RelativeCoordinate.INSTANCE) == null) {
+                    break;
+                }
+                consumer.get();
+            }
+            return consumer.tabCompleteDatatype(RelativeCoordinate.INSTANCE);
+        }
+        return Stream.empty();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeCoordinate.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+public enum RelativeCoordinate implements IDatatypePost<Double, Double> {
+    INSTANCE;
+
+    private static Pattern PATTERN = Pattern.compile("^(~?)([+-]?(?:\\d+(?:\\.\\d*)?|\\.\\d+)|)$");
+
+    @Override
+    public Double apply(IDatatypeContext ctx, Double origin) throws CommandException {
+        if (origin == null) {
+            origin = 0.0D;
+        }
+
+        Matcher matcher = PATTERN.matcher(ctx.getConsumer().getString());
+        if (!matcher.matches()) {
+            throw new IllegalArgumentException("pattern doesn't match");
+        }
+
+        boolean isRelative = !matcher.group(1).isEmpty();
+        double offset = matcher.group(2).isEmpty() ? 0 : Double.parseDouble(matcher.group(2));
+
+        if (isRelative) {
+            return origin + offset;
+        }
+        return offset;
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) throws CommandException {
+        final ArgConsumer consumer = ctx.getConsumer();
+        if (!consumer.has(2) && consumer.getString().matches("^(~|$)")) {
+            return Stream.of("~");
+        }
+        return Stream.empty();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeFile.java

@@ -0,0 +1,103 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.FileSystems;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Path;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.stream.Stream;
+
+import static baritone.api.utils.Helper.HELPER;
+
+public enum RelativeFile implements IDatatypePost<File, File> {
+    INSTANCE;
+
+    @Override
+    public File apply(IDatatypeContext ctx, File original) throws CommandException {
+        if (original == null) {
+            original = new File("./");
+        }
+
+        Path path;
+        try {
+            path = FileSystems.getDefault().getPath(ctx.getConsumer().getString());
+        } catch (InvalidPathException e) {
+            throw new IllegalArgumentException("invalid path");
+        }
+        return getCanonicalFileUnchecked(original.toPath().resolve(path).toFile());
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        return Stream.empty();
+    }
+
+    /**
+     * Seriously
+     *
+     * @param file File
+     * @return Canonical file of file
+     * @author LoganDark
+     */
+    private static File getCanonicalFileUnchecked(File file) {
+        try {
+            return file.getCanonicalFile();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    public static Stream<String> tabComplete(ArgConsumer consumer, File base0) throws CommandException {
+        // I will not make the caller deal with this, seriously
+        // Tab complete code is beautiful and I'm not going to bloat it with dumb ass checked exception bullshit -LoganDark
+
+        // lol owned -Brady
+
+        File base = getCanonicalFileUnchecked(base0);
+        String currentPathStringThing = consumer.getString();
+        Path currentPath = FileSystems.getDefault().getPath(currentPathStringThing);
+        Path basePath = currentPath.isAbsolute() ? currentPath.getRoot() : base.toPath();
+        boolean useParent = !currentPathStringThing.isEmpty() && !currentPathStringThing.endsWith(File.separator);
+        File currentFile = currentPath.isAbsolute() ? currentPath.toFile() : new File(base, currentPathStringThing);
+        return Stream.of(Objects.requireNonNull(getCanonicalFileUnchecked(
+                useParent
+                        ? currentFile.getParentFile()
+                        : currentFile
+        ).listFiles()))
+                .map(f -> (currentPath.isAbsolute() ? f : basePath.relativize(f.toPath()).toString()) +
+                        (f.isDirectory() ? File.separator : ""))
+                .filter(s -> s.toLowerCase(Locale.US).startsWith(currentPathStringThing.toLowerCase(Locale.US)))
+                .filter(s -> !s.contains(" "));
+    }
+
+    public static File gameDir() {
+        File gameDir = HELPER.mc.gameDir.getAbsoluteFile();
+        if (gameDir.getName().equals(".")) {
+            return gameDir.getParentFile();
+        }
+        return gameDir;
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeGoal.java

@@ -0,0 +1,79 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.pathing.goals.Goal;
+import baritone.api.pathing.goals.GoalBlock;
+import baritone.api.pathing.goals.GoalXZ;
+import baritone.api.pathing.goals.GoalYLevel;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.math.MathHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+public enum RelativeGoal implements IDatatypePost<Goal, BetterBlockPos> {
+    INSTANCE;
+
+    @Override
+    public Goal apply(IDatatypeContext ctx, BetterBlockPos origin) throws CommandException {
+        if (origin == null) {
+            origin = BetterBlockPos.ORIGIN;
+        }
+        final ArgConsumer consumer = ctx.getConsumer();
+
+        List<IDatatypePostFunction<Double, Double>> coords = new ArrayList<>();
+        final ArgConsumer copy = consumer.copy(); // This is a hack and should be fixed in the future probably
+        for (int i = 0; i < 3; i++) {
+            if (copy.peekDatatypeOrNull(RelativeCoordinate.INSTANCE) != null) {
+                coords.add(o -> consumer.getDatatypePost(RelativeCoordinate.INSTANCE, o));
+                copy.get(); // Consume so we actually decrement the remaining arguments
+            }
+        }
+
+        switch (coords.size()) {
+            case 0:
+                return new GoalBlock(origin);
+            case 1:
+                return new GoalYLevel(
+                        MathHelper.floor(coords.get(0).apply((double) origin.y))
+                );
+            case 2:
+                return new GoalXZ(
+                        MathHelper.floor(coords.get(0).apply((double) origin.x)),
+                        MathHelper.floor(coords.get(1).apply((double) origin.z))
+                );
+            case 3:
+                return new GoalBlock(
+                        MathHelper.floor(coords.get(0).apply((double) origin.x)),
+                        MathHelper.floor(coords.get(1).apply((double) origin.y)),
+                        MathHelper.floor(coords.get(2).apply((double) origin.z))
+                );
+            default:
+                throw new IllegalStateException("Unexpected coords size: " + coords.size());
+        }
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        return ctx.getConsumer().tabCompleteDatatype(RelativeCoordinate.INSTANCE);
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeGoalBlock.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.pathing.goals.GoalBlock;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.math.MathHelper;
+
+import java.util.stream.Stream;
+
+public enum RelativeGoalBlock implements IDatatypePost<GoalBlock, BetterBlockPos> {
+    INSTANCE;
+
+    @Override
+    public GoalBlock apply(IDatatypeContext ctx, BetterBlockPos origin) throws CommandException {
+        if (origin == null) {
+            origin = BetterBlockPos.ORIGIN;
+        }
+
+        final ArgConsumer consumer = ctx.getConsumer();
+        return new GoalBlock(
+                MathHelper.floor(consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.x)),
+                MathHelper.floor(consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.y)),
+                MathHelper.floor(consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.z))
+        );
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        final ArgConsumer consumer = ctx.getConsumer();
+        if (consumer.hasAtMost(3)) {
+            return consumer.tabCompleteDatatype(RelativeCoordinate.INSTANCE);
+        }
+        return Stream.empty();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeGoalXZ.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.pathing.goals.GoalXZ;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.math.MathHelper;
+
+import java.util.stream.Stream;
+
+public enum RelativeGoalXZ implements IDatatypePost<GoalXZ, BetterBlockPos> {
+    INSTANCE;
+
+    @Override
+    public GoalXZ apply(IDatatypeContext ctx, BetterBlockPos origin) throws CommandException {
+        if (origin == null) {
+            origin = BetterBlockPos.ORIGIN;
+        }
+
+        final ArgConsumer consumer = ctx.getConsumer();
+        return new GoalXZ(
+                MathHelper.floor(consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.x)),
+                MathHelper.floor(consumer.getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.y))
+        );
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        final ArgConsumer consumer = ctx.getConsumer();
+        if (consumer.hasAtMost(2)) {
+            return consumer.tabCompleteDatatype(RelativeCoordinate.INSTANCE);
+        }
+        return Stream.empty();
+    }
+}

src/api/java/baritone/api/utils/command/datatypes/RelativeGoalYLevel.java

@@ -0,0 +1,50 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.datatypes;
+
+import baritone.api.pathing.goals.GoalYLevel;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.math.MathHelper;
+
+import java.util.stream.Stream;
+
+public enum RelativeGoalYLevel implements IDatatypePost<GoalYLevel, BetterBlockPos> {
+    INSTANCE;
+
+    @Override
+    public GoalYLevel apply(IDatatypeContext ctx, BetterBlockPos origin) throws CommandException {
+        if (origin == null) {
+            origin = BetterBlockPos.ORIGIN;
+        }
+
+        return new GoalYLevel(
+                MathHelper.floor(ctx.getConsumer().getDatatypePost(RelativeCoordinate.INSTANCE, (double) origin.y))
+        );
+    }
+
+    @Override
+    public Stream<String> tabComplete(IDatatypeContext ctx) {
+        final ArgConsumer consumer = ctx.getConsumer();
+        if (consumer.hasAtMost(1)) {
+            return consumer.tabCompleteDatatype(RelativeCoordinate.INSTANCE);
+        }
+        return Stream.empty();
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandErrorMessageException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public abstract class CommandErrorMessageException extends CommandException {
+
+    protected CommandErrorMessageException(String reason) {
+        super(reason);
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public abstract class CommandException extends Exception implements ICommandException {
+
+    protected CommandException(String reason) {
+        super(reason);
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandInvalidArgumentException.java

@@ -0,0 +1,34 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+import baritone.api.utils.command.argument.CommandArgument;
+
+public abstract class CommandInvalidArgumentException extends CommandErrorMessageException {
+
+    public final CommandArgument arg;
+
+    protected CommandInvalidArgumentException(CommandArgument arg, String reason) {
+        super(String.format(
+                "Error at argument #%s: %s",
+                arg.index == -1 ? "<unknown>" : Integer.toString(arg.index + 1),
+                reason
+        ));
+        this.arg = arg;
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandInvalidStateException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public class CommandInvalidStateException extends CommandErrorMessageException {
+
+    public CommandInvalidStateException(String reason) {
+        super(reason);
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandInvalidTypeException.java

@@ -0,0 +1,39 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+import baritone.api.utils.command.argument.CommandArgument;
+
+public class CommandInvalidTypeException extends CommandInvalidArgumentException {
+
+    public CommandInvalidTypeException(CommandArgument arg, String expected) {
+        super(arg, String.format("Expected %s", expected));
+    }
+
+    public CommandInvalidTypeException(CommandArgument arg, String expected, Throwable cause) {
+        super(arg, String.format("Expected %s.\nMore details: %s", expected, cause.getMessage()));
+    }
+
+    public CommandInvalidTypeException(CommandArgument arg, String expected, String got) {
+        super(arg, String.format("Expected %s, but got %s instead", expected, got));
+    }
+
+    public CommandInvalidTypeException(CommandArgument arg, String expected, String got, Throwable cause) {
+        super(arg, String.format("Expected %s, but got %s instead.\nMore details: %s", expected, got, cause.getMessage()));
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandNoParserForTypeException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public class CommandNoParserForTypeException extends CommandUnhandledException {
+
+    public CommandNoParserForTypeException(Class<?> klass) {
+        super(String.format("Could not find a handler for type %s", klass.getSimpleName()));
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandNotEnoughArgumentsException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public class CommandNotEnoughArgumentsException extends CommandErrorMessageException {
+
+    public CommandNotEnoughArgumentsException(int minArgs) {
+        super(String.format("Not enough arguments (expected at least %d)", minArgs));
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandNotFoundException.java

@@ -0,0 +1,40 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argument.CommandArgument;
+
+import java.util.List;
+
+import static baritone.api.utils.Helper.HELPER;
+
+public class CommandNotFoundException extends CommandException {
+
+    public final String command;
+
+    public CommandNotFoundException(String command) {
+        super(String.format("Command not found: %s", command));
+        this.command = command;
+    }
+
+    @Override
+    public void handle(Command command, List<CommandArgument> args) {
+        HELPER.logDirect(getMessage());
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandTooManyArgumentsException.java

@@ -0,0 +1,25 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+public class CommandTooManyArgumentsException extends CommandErrorMessageException {
+
+    public CommandTooManyArgumentsException(int maxArgs) {
+        super(String.format("Too many arguments (expected at most %d)", maxArgs));
+    }
+}

src/api/java/baritone/api/utils/command/exception/CommandUnhandledException.java

@@ -0,0 +1,46 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argument.CommandArgument;
+import net.minecraft.util.text.TextFormatting;
+
+import java.util.List;
+
+import static baritone.api.utils.Helper.HELPER;
+
+public class CommandUnhandledException extends RuntimeException implements ICommandException {
+
+    public CommandUnhandledException(String message) {
+        super(message);
+    }
+
+    public CommandUnhandledException(Throwable cause) {
+        super(cause);
+    }
+
+    @Override
+    public void handle(Command command, List<CommandArgument> args) {
+        HELPER.logDirect("An unhandled exception occurred." +
+                "The error is in your game's log, please report this at https://github.com/cabaletta/baritone/issues",
+                TextFormatting.RED);
+
+        this.printStackTrace();
+    }
+}

src/api/java/baritone/api/utils/command/exception/ICommandException.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.exception;
+
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argument.CommandArgument;
+import net.minecraft.util.text.TextFormatting;
+
+import java.util.List;
+
+import static baritone.api.utils.Helper.HELPER;
+
+/**
+ * The base for a Baritone Command Exception, checked or unchecked. Provides a
+ * {@link #handle(Command, List)} method that is used to provide useful output
+ * to the user for diagnosing issues that may have occurred during execution.
+ * <p>
+ * Anything implementing this interface should be assignable to {@link Exception}.
+ *
+ * @author Brady
+ * @since 9/20/2019
+ */
+public interface ICommandException {
+
+    /**
+     * @see Exception#getMessage()
+     * @return The exception details
+     */
+    String getMessage();
+
+    /**
+     * Called when this exception is thrown, to handle the exception.
+     *
+     * @param command The command that threw it.
+     * @param args    The arguments the command was called with.
+     */
+    default void handle(Command command, List<CommandArgument> args) {
+        HELPER.logDirect(this.getMessage(), TextFormatting.RED);
+    }
+}

src/api/java/baritone/api/utils/command/execution/ICommandExecution.java

@@ -0,0 +1,68 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.execution;
+
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argument.CommandArgument;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.Tuple;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * @author Brady
+ * @since 9/28/2019
+ */
+public interface ICommandExecution {
+
+    /**
+     * @return The label that was used to target the {@link Command}
+     */
+    String getLabel();
+
+    /**
+     * @return The arguments to be passed to the {@link Command}
+     */
+    ArgConsumer getArguments();
+
+    /**
+     * Executes the target command for this {@link ICommandExecution}. This method should never
+     * {@code throw} any exception, anything that is thrown during the target command execution
+     * should be safely handled.
+     */
+    void execute();
+
+    /**
+     * Forwards this {@link ICommandExecution} to the target {@link Command} to perform a tab-completion.
+     * If the tab-completion operation is a failure, then {@link Stream#empty()} will be returned.
+     *
+     * @return The tab-completed arguments, if possible.
+     */
+    Stream<String> tabComplete();
+
+    static Tuple<String, List<CommandArgument>> expand(String string, boolean preserveEmptyLast) {
+        String label = string.split("\\s", 2)[0];
+        List<CommandArgument> args = CommandArgument.from(string.substring(label.length()), preserveEmptyLast);
+        return new Tuple<>(label, args);
+    }
+
+    static Tuple<String, List<CommandArgument>> expand(String string) {
+        return expand(string, false);
+    }
+}

src/api/java/baritone/api/utils/command/helpers/arguments/ArgConsumer.java

@@ -0,0 +1,818 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.helpers.arguments;
+
+import baritone.api.IBaritone;
+import baritone.api.utils.Helper;
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argparser.IArgParser;
+import baritone.api.utils.command.argument.CommandArgument;
+import baritone.api.utils.command.datatypes.IDatatype;
+import baritone.api.utils.command.datatypes.IDatatypeContext;
+import baritone.api.utils.command.datatypes.IDatatypeFor;
+import baritone.api.utils.command.datatypes.IDatatypePost;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.exception.CommandInvalidTypeException;
+import baritone.api.utils.command.exception.CommandNotEnoughArgumentsException;
+import baritone.api.utils.command.exception.CommandTooManyArgumentsException;
+import baritone.api.utils.command.manager.ICommandManager;
+import net.minecraft.util.EnumFacing;
+
+import java.util.ArrayList;
+import java.util.Deque;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * The {@link ArgConsumer} is how {@link Command}s read the arguments passed to them. This class has many benefits:
+ *
+ * <ul>
+ * <li>Mutability. The whole concept of the {@link ArgConsumer} is to let you gradually consume arguments in any way
+ * you'd like. You can change your consumption based on earlier arguments, for subcommands for example.</li>
+ * <li>You don't need to keep track of your consumption. The {@link ArgConsumer} keeps track of the arguments you
+ * consume so that it can throw detailed exceptions whenever something is out of the ordinary. Additionally, if you
+ * need to retrieve an argument after you've already consumed it - look no further than {@link #consumed()}!</li>
+ * <li>Easy retrieval of many different types. If you need to retrieve an instance of an int or float for example,
+ * look no further than {@link #getAs(Class)}. If you need a more powerful way of retrieving data, try out the many
+ * {@code getDatatype...} methods.</li>
+ * <li>It's very easy to throw detailed exceptions. The {@link ArgConsumer} has many different methods that can
+ * enforce the number of arguments, the type of arguments, and more, throwing different types of
+ * {@link CommandException}s if something seems off. You're recommended to do all validation and store all needed
+ * data in variables BEFORE logging any data to chat via {@link Helper#logDirect(String)}, so that the error
+ * handlers can do their job and log the error to chat.</li>
+ * </ul>
+ */
+public class ArgConsumer {
+
+    /**
+     * The parent {@link ICommandManager} for this {@link ArgConsumer}. Used by {@link #context}.
+     */
+    private final ICommandManager manager;
+
+    /**
+     * The {@link IDatatypeContext} instance for this {@link ArgConsumer}, passed to
+     * datatypes when an operation is performed upon them.
+     *
+     * @see IDatatype
+     * @see IDatatypeContext
+     */
+    private final IDatatypeContext context;
+
+    /**
+     * The list of arguments in this ArgConsumer
+     */
+    public final LinkedList<CommandArgument> args;
+
+    /**
+     * The list of consumed arguments for this ArgConsumer. The most recently consumed argument is the last one
+     */
+    public final Deque<CommandArgument> consumed;
+
+    private ArgConsumer(ICommandManager manager, Deque<CommandArgument> args, Deque<CommandArgument> consumed) {
+        this.manager = manager;
+        this.context = this.new Context();
+        this.args = new LinkedList<>(args);
+        this.consumed = new LinkedList<>(consumed);
+    }
+
+    public ArgConsumer(ICommandManager manager, List<CommandArgument> args) {
+        this(manager, new LinkedList<>(args), new LinkedList<>());
+    }
+
+    /**
+     * @param num The number of arguments to check for
+     * @return {@code true} if there are <i>at least</i> {@code num} arguments left in this {@link ArgConsumer}
+     * @see #hasAny()
+     * @see #hasAtMost(int)
+     * @see #hasExactly(int)
+     */
+    public boolean has(int num) {
+        return args.size() >= num;
+    }
+
+    /**
+     * @return {@code true} if there is <i>at least</i> 1 argument left in this {@link ArgConsumer}
+     * @see #has(int)
+     * @see #hasAtMostOne()
+     * @see #hasExactlyOne()
+     */
+    public boolean hasAny() {
+        return has(1);
+    }
+
+    /**
+     * @param num The number of arguments to check for
+     * @return {@code true} if there are <i>at most</i> {@code num} arguments left in this {@link ArgConsumer}
+     * @see #has(int)
+     * @see #hasAtMost(int)
+     * @see #hasExactly(int)
+     */
+    public boolean hasAtMost(int num) {
+        return args.size() <= num;
+    }
+
+    /**
+     * @return {@code true} if there is <i>at most</i> 1 argument left in this {@link ArgConsumer}
+     * @see #hasAny()
+     * @see #hasAtMostOne()
+     * @see #hasExactlyOne()
+     */
+    public boolean hasAtMostOne() {
+        return hasAtMost(1);
+    }
+
+    /**
+     * @param num The number of arguments to check for
+     * @return {@code true} if there are <i>exactly</i> {@code num} arguments left in this {@link ArgConsumer}
+     * @see #has(int)
+     * @see #hasAtMost(int)
+     */
+    public boolean hasExactly(int num) {
+        return args.size() == num;
+    }
+
+    /**
+     * @return {@code true} if there is <i>exactly</i> 1 argument left in this {@link ArgConsumer}
+     * @see #hasAny()
+     * @see #hasAtMostOne()
+     */
+    public boolean hasExactlyOne() {
+        return hasExactly(1);
+    }
+
+    /**
+     * @param index The index to peek
+     * @return The argument at index {@code index} in this {@link ArgConsumer}, with 0 being the next one. This does not
+     * mutate the {@link ArgConsumer}
+     * @throws CommandNotEnoughArgumentsException If there is less than {@code index + 1} arguments left
+     * @see #peek()
+     * @see #peekString(int)
+     * @see #peekAs(Class, int)
+     * @see #get()
+     */
+    public CommandArgument peek(int index) throws CommandNotEnoughArgumentsException {
+        requireMin(index + 1);
+        return args.get(index);
+    }
+
+    /**
+     * @return The next argument in this {@link ArgConsumer}. This does not mutate the {@link ArgConsumer}
+     * @throws CommandNotEnoughArgumentsException If there is less than one argument left
+     * @see #peek(int)
+     * @see #peekString()
+     * @see #peekAs(Class)
+     * @see #get()
+     */
+    public CommandArgument peek() throws CommandNotEnoughArgumentsException {
+        return peek(0);
+    }
+
+    /**
+     * @param index The index to peek
+     * @param type  The type to check for
+     * @return If an ArgParser.Stateless for the specified {@code type} would succeed in parsing the next
+     * argument
+     * @throws CommandNotEnoughArgumentsException If there is less than {@code index + 1} arguments left
+     * @see #peek()
+     * @see #getAs(Class)
+     */
+    public boolean is(Class<?> type, int index) throws CommandNotEnoughArgumentsException {
+        return peek(index).is(type);
+    }
+
+    /**
+     * @param type The type to check for
+     * @return If an ArgParser.Stateless for the specified {@code type} would succeed in parsing the next
+     * argument
+     * @throws CommandNotEnoughArgumentsException If there is less than one argument left
+     * @see #peek()
+     * @see #getAs(Class)
+     */
+    public boolean is(Class<?> type) throws CommandNotEnoughArgumentsException {
+        return is(type, 0);
+    }
+
+    /**
+     * @param index The index to peek
+     * @return The value of the argument at index {@code index} in this {@link ArgConsumer}, with 0 being the next one
+     * This does not mutate the {@link ArgConsumer}
+     * @throws CommandNotEnoughArgumentsException If there is less than {@code index + 1} arguments left
+     * @see #peek()
+     * @see #peekString()
+     */
+    public String peekString(int index) throws CommandNotEnoughArgumentsException {
+        return peek(index).value;
+    }
+
+    /**
+     * @return The value of the next argument in this {@link ArgConsumer}. This does not mutate the {@link ArgConsumer}
+     * @throws CommandNotEnoughArgumentsException If there is less than one argument left
+     * @see #peekString(int)
+     * @see #getString()
+     */
+    public String peekString() throws CommandNotEnoughArgumentsException {
+        return peekString(0);
+    }
+
+    /**
+     * @param index     The index to peek
+     * @param enumClass The class to search
+     * @return From the specified enum class, an enum constant of that class. The enum constant's name will match the
+     * next argument's value
+     * @throws java.util.NoSuchElementException If the constant couldn't be found
+     * @see #peekEnumOrNull(Class)
+     * @see #getEnum(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E peekEnum(Class<E> enumClass, int index) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return peek(index).getEnum(enumClass);
+    }
+
+    /**
+     * @param enumClass The class to search
+     * @return From the specified enum class, an enum constant of that class. The enum constant's name will match the
+     * next argument's value
+     * @throws CommandInvalidTypeException If the constant couldn't be found
+     * @see #peekEnumOrNull(Class)
+     * @see #getEnum(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E peekEnum(Class<E> enumClass) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return peekEnum(enumClass, 0);
+    }
+
+    /**
+     * @param index     The index to peek
+     * @param enumClass The class to search
+     * @return From the specified enum class, an enum constant of that class. The enum constant's name will match the
+     * next argument's value. If no constant could be found, null
+     * @see #peekEnum(Class)
+     * @see #getEnumOrNull(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E peekEnumOrNull(Class<E> enumClass, int index) throws CommandNotEnoughArgumentsException {
+        try {
+            return peekEnum(enumClass, index);
+        } catch (CommandInvalidTypeException e) {
+            return null;
+        }
+    }
+
+    /**
+     * @param enumClass The class to search
+     * @return From the specified enum class, an enum constant of that class. The enum constant's name will match the
+     * next argument's value. If no constant could be found, null
+     * @see #peekEnum(Class)
+     * @see #getEnumOrNull(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E peekEnumOrNull(Class<E> enumClass) throws CommandNotEnoughArgumentsException {
+        return peekEnumOrNull(enumClass, 0);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the argument at the specified index into the specified
+     * class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type  The type to peek as
+     * @param index The index to peek
+     * @return An instance of the specified type
+     * @throws CommandInvalidTypeException     If the parsing failed
+     * @see IArgParser
+     * @see #peekAs(Class)
+     * @see #peekAsOrDefault(Class, Object, int)
+     * @see #peekAsOrNull(Class, int)
+     */
+    public <T> T peekAs(Class<T> type, int index) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return peek(index).getAs(type);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @return An instance of the specified type
+     * @throws CommandInvalidTypeException     If the parsing failed
+     * @see IArgParser
+     * @see #peekAs(Class, int)
+     * @see #peekAsOrDefault(Class, Object)
+     * @see #peekAsOrNull(Class)
+     */
+    public <T> T peekAs(Class<T> type) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return peekAs(type, 0);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the argument at the specified index into the specified
+     * class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type  The type to peek as
+     * @param def   The value to return if the argument can't be parsed
+     * @param index The index to peek
+     * @return An instance of the specified type, or {@code def} if it couldn't be parsed
+     * @see IArgParser
+     * @see #peekAsOrDefault(Class, Object)
+     * @see #peekAs(Class, int)
+     * @see #peekAsOrNull(Class, int)
+     */
+    public <T> T peekAsOrDefault(Class<T> type, T def, int index) throws CommandNotEnoughArgumentsException {
+        try {
+            return peekAs(type, index);
+        } catch (CommandInvalidTypeException e) {
+            return def;
+        }
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @param def  The value to return if the argument can't be parsed
+     * @return An instance of the specified type, or {@code def} if it couldn't be parsed
+     * @see IArgParser
+     * @see #peekAsOrDefault(Class, Object, int)
+     * @see #peekAs(Class)
+     * @see #peekAsOrNull(Class)
+     */
+    public <T> T peekAsOrDefault(Class<T> type, T def) throws CommandNotEnoughArgumentsException {
+        return peekAsOrDefault(type, def, 0);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the argument at the specified index into the specified
+     * class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type  The type to peek as
+     * @param index The index to peek
+     * @return An instance of the specified type, or {@code null} if it couldn't be parsed
+     * @see IArgParser
+     * @see #peekAsOrNull(Class)
+     * @see #peekAs(Class, int)
+     * @see #peekAsOrDefault(Class, Object, int)
+     */
+    public <T> T peekAsOrNull(Class<T> type, int index) throws CommandNotEnoughArgumentsException {
+        return peekAsOrDefault(type, null, index);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @return An instance of the specified type, or {@code null} if it couldn't be parsed
+     * @see IArgParser
+     * @see #peekAsOrNull(Class, int)
+     * @see #peekAs(Class)
+     * @see #peekAsOrDefault(Class, Object)
+     */
+    public <T> T peekAsOrNull(Class<T> type) throws CommandNotEnoughArgumentsException {
+        return peekAsOrNull(type, 0);
+    }
+
+    public <T> T peekDatatype(IDatatypeFor<T> datatype) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return copy().getDatatypeFor(datatype);
+    }
+
+    public <T, O> T peekDatatype(IDatatypePost<T, O> datatype) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return this.peekDatatype(datatype, null);
+    }
+
+    public <T, O> T peekDatatype(IDatatypePost<T, O> datatype, O original) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return copy().getDatatypePost(datatype, original);
+    }
+
+    public <T> T peekDatatypeOrNull(IDatatypeFor<T> datatype) {
+        return copy().getDatatypeForOrNull(datatype);
+    }
+
+    public <T, O> T peekDatatypeOrNull(IDatatypePost<T, O> datatype) {
+        return copy().getDatatypePostOrNull(datatype, null);
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T peekDatatypePost(D datatype, O original) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return copy().getDatatypePost(datatype, original);
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T peekDatatypePostOrDefault(D datatype, O original, T def) {
+        return copy().getDatatypePostOrDefault(datatype, original, def);
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T peekDatatypePostOrNull(D datatype, O original) {
+        return peekDatatypePostOrDefault(datatype, original, null);
+    }
+
+    /**
+     * Attempts to get the specified {@link IDatatypeFor} from this ArgConsumer
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     * <p>
+     * Since this is a peek operation, this ArgConsumer will not be mutated by any call to this method.
+     *
+     * @param datatype The datatype to get
+     * @return The datatype instance
+     * @see IDatatype
+     * @see IDatatypeFor
+     */
+    public <T, D extends IDatatypeFor<T>> T peekDatatypeFor(Class<D> datatype) {
+        return copy().peekDatatypeFor(datatype);
+    }
+
+    /**
+     * Attempts to get the specified {@link IDatatypeFor} from this ArgConsumer
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     * <p>
+     * Since this is a peek operation, this ArgConsumer will not be mutated by any call to this method.
+     *
+     * @param datatype The datatype to get
+     * @param def      The default value
+     * @return The datatype instance, or {@code def} if it throws an exception
+     * @see IDatatype
+     * @see IDatatypeFor
+     */
+    public <T, D extends IDatatypeFor<T>> T peekDatatypeForOrDefault(Class<D> datatype, T def) {
+        return copy().peekDatatypeForOrDefault(datatype, def);
+    }
+
+    /**
+     * Attempts to get the specified {@link IDatatypeFor} from this ArgConsumer
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     * <p>
+     * Since this is a peek operation, this ArgConsumer will not be mutated by any call to this method.
+     *
+     * @param datatype The datatype to get
+     * @return The datatype instance, or {@code null} if it throws an exception
+     * @see IDatatype
+     * @see IDatatypeFor
+     */
+    public <T, D extends IDatatypeFor<T>> T peekDatatypeForOrNull(Class<D> datatype) {
+        return peekDatatypeForOrDefault(datatype, null);
+    }
+
+    /**
+     * Gets the next argument and returns it. This consumes the first argument so that subsequent calls will return
+     * later arguments
+     *
+     * @return The next argument
+     * @throws CommandNotEnoughArgumentsException If there's less than one argument left
+     */
+    public CommandArgument get() throws CommandNotEnoughArgumentsException {
+        requireMin(1);
+        CommandArgument arg = args.removeFirst();
+        consumed.add(arg);
+        return arg;
+    }
+
+    /**
+     * Gets the value of the next argument and returns it. This consumes the first argument so that subsequent calls
+     * will return later arguments
+     *
+     * @return The value of the next argument
+     * @throws CommandNotEnoughArgumentsException If there's less than one argument left
+     */
+    public String getString() throws CommandNotEnoughArgumentsException {
+        return get().value;
+    }
+
+    /**
+     * Gets an enum value from the enum class with the same name as the next argument's value
+     * <p>
+     * For example if you getEnum as an {@link EnumFacing}, and the next argument's value is "up", this will return
+     * {@link EnumFacing#UP}
+     *
+     * @param enumClass The enum class to search
+     * @return An enum constant of that class with the same name as the next argument's value
+     * @throws CommandInvalidTypeException If the constant couldn't be found
+     * @see #peekEnum(Class)
+     * @see #getEnumOrNull(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E getEnum(Class<E> enumClass) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return get().getEnum(enumClass);
+    }
+
+    /**
+     * Gets an enum value from the enum class with the same name as the next argument's value
+     * <p>
+     * For example if you getEnum as an {@link EnumFacing}, and the next argument's value is "up", this will return
+     * {@link EnumFacing#UP}
+     *
+     * @param enumClass The enum class to search
+     * @param def       The default value
+     * @return An enum constant of that class with the same name as the next argument's value, or {@code def} if it
+     * couldn't be found
+     * @see #getEnum(Class)
+     * @see #getEnumOrNull(Class)
+     * @see #peekEnumOrNull(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E getEnumOrDefault(Class<E> enumClass, E def) throws CommandNotEnoughArgumentsException {
+        try {
+            peekEnum(enumClass);
+            return getEnum(enumClass);
+        } catch (CommandInvalidTypeException e) {
+            return def;
+        }
+    }
+
+    /**
+     * Gets an enum value from the enum class with the same name as the next argument's value
+     * <p>
+     * For example if you getEnum as an {@link EnumFacing}, and the next argument's value is "up", this will return
+     * {@link EnumFacing#UP}
+     *
+     * @param enumClass The enum class to search
+     * @return An enum constant of that class with the same name as the next argument's value, or {@code null} if it
+     * couldn't be found
+     * @see #getEnum(Class)
+     * @see #getEnumOrDefault(Class, Enum)
+     * @see #peekEnumOrNull(Class)
+     * @see CommandArgument#getEnum(Class)
+     */
+    public <E extends Enum<?>> E getEnumOrNull(Class<E> enumClass) throws CommandNotEnoughArgumentsException {
+        return getEnumOrDefault(enumClass, null);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @return An instance of the specified type
+     * @throws CommandInvalidTypeException     If the parsing failed
+     * @see IArgParser
+     * @see #get()
+     * @see #getAsOrDefault(Class, Object)
+     * @see #getAsOrNull(Class)
+     * @see #peekAs(Class)
+     * @see #peekAsOrDefault(Class, Object, int)
+     * @see #peekAsOrNull(Class, int)
+     */
+    public <T> T getAs(Class<T> type) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        return get().getAs(type);
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @param def  The default value
+     * @return An instance of the specified type, or {@code def} if it couldn't be parsed
+     * @see IArgParser
+     * @see #get()
+     * @see #getAs(Class)
+     * @see #getAsOrNull(Class)
+     * @see #peekAs(Class)
+     * @see #peekAsOrDefault(Class, Object, int)
+     * @see #peekAsOrNull(Class, int)
+     */
+    public <T> T getAsOrDefault(Class<T> type, T def) throws CommandNotEnoughArgumentsException {
+        try {
+            T val = peek().getAs(type);
+            get();
+            return val;
+        } catch (CommandInvalidTypeException e) {
+            return def;
+        }
+    }
+
+    /**
+     * Tries to use a <b>stateless</b> {@link IArgParser} to parse the next argument into the specified class
+     * <p>
+     * A critical difference between {@link IDatatype}s and {@link IArgParser}s is how many arguments they can take.
+     * While {@link IArgParser}s always operate on a single argument's value, {@link IDatatype}s get access to the entire
+     * {@link ArgConsumer}.
+     *
+     * @param type The type to peek as
+     * @return An instance of the specified type, or {@code null} if it couldn't be parsed
+     * @see IArgParser
+     * @see #get()
+     * @see #getAs(Class)
+     * @see #getAsOrDefault(Class, Object)
+     * @see #peekAs(Class)
+     * @see #peekAsOrDefault(Class, Object, int)
+     * @see #peekAsOrNull(Class, int)
+     */
+    public <T> T getAsOrNull(Class<T> type) throws CommandNotEnoughArgumentsException {
+        return getAsOrDefault(type, null);
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T getDatatypePost(D datatype, O original) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        try {
+            return datatype.apply(this.context, original);
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new CommandInvalidTypeException(hasAny() ? peek() : consumed(), datatype.getClass().getSimpleName());
+        }
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T getDatatypePostOrDefault(D datatype, O original, T _default) {
+        final List<CommandArgument> argsSnapshot = new ArrayList<>(this.args);
+        final List<CommandArgument> consumedSnapshot = new ArrayList<>(this.consumed);
+        try {
+            return this.getDatatypePost(datatype, original);
+        } catch (Exception e) {
+            this.args.clear();
+            this.args.addAll(argsSnapshot);
+            this.consumed.clear();
+            this.consumed.addAll(consumedSnapshot);
+            return _default;
+        }
+    }
+
+    public <T, O, D extends IDatatypePost<T, O>> T getDatatypePostOrNull(D datatype, O original) {
+        return this.getDatatypePostOrDefault(datatype, original, null);
+    }
+
+    public <T, D extends IDatatypeFor<T>> T getDatatypeFor(D datatype) throws CommandInvalidTypeException, CommandNotEnoughArgumentsException {
+        try {
+            return datatype.get(this.context);
+        } catch (Exception e) {
+            throw new CommandInvalidTypeException(hasAny() ? peek() : consumed(), datatype.getClass().getSimpleName());
+        }
+    }
+
+    public <T, D extends IDatatypeFor<T>> T getDatatypeForOrDefault(D datatype, T def) {
+        final List<CommandArgument> argsSnapshot = new ArrayList<>(this.args);
+        final List<CommandArgument> consumedSnapshot = new ArrayList<>(this.consumed);
+        try {
+            return this.getDatatypeFor(datatype);
+        } catch (Exception e) {
+            this.args.clear();
+            this.args.addAll(argsSnapshot);
+            this.consumed.clear();
+            this.consumed.addAll(consumedSnapshot);
+            return def;
+        }
+    }
+
+    public <T, D extends IDatatypeFor<T>> T getDatatypeForOrNull(D datatype) {
+        return this.getDatatypeForOrDefault(datatype, null);
+    }
+
+    public <T extends IDatatype> Stream<String> tabCompleteDatatype(T datatype) {
+        try {
+            return datatype.tabComplete(this.context);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return Stream.empty();
+    }
+
+    /**
+     * Returns the "raw rest" of the string. For example, from a string <code>arg1 arg2&nbsp;&nbsp;arg3</code>, split
+     * into three {@link CommandArgument}s {@code "arg1"}, {@code "arg2"}, and {@code "arg3"}:
+     *
+     * <ul>
+     * <li>{@code rawRest()} would return <code>arg1 arg2&nbsp;&nbsp;arg3</code></li>
+     * <li>After calling {@link #get()}, {@code rawRest()} would return <code>arg2&nbsp;&nbsp;arg3</code> (note the
+     * double space - it is preserved!)</li>
+     * <li>After calling {@link #get()} again, {@code rawRest()} would return {@code "arg3"}</li>
+     * <li>After calling {@link #get()} one last time, {@code rawRest()} would return {@code ""}</li>
+     * </ul>
+     *
+     * @return The "raw rest" of the string.
+     */
+    public String rawRest() {
+        return args.size() > 0 ? args.getFirst().rawRest : "";
+    }
+
+    /**
+     * @param min The minimum amount of arguments to require.
+     * @throws CommandNotEnoughArgumentsException If there are less than {@code min} arguments left.
+     * @see #requireMax(int)
+     * @see #requireExactly(int)
+     */
+    public void requireMin(int min) throws CommandNotEnoughArgumentsException {
+        if (args.size() < min) {
+            throw new CommandNotEnoughArgumentsException(min + consumed.size());
+        }
+    }
+
+    /**
+     * @param max The maximum amount of arguments allowed.
+     * @throws CommandTooManyArgumentsException If there are more than {@code max} arguments left.
+     * @see #requireMin(int)
+     * @see #requireExactly(int)
+     */
+    public void requireMax(int max) throws CommandTooManyArgumentsException {
+        if (args.size() > max) {
+            throw new CommandTooManyArgumentsException(max + consumed.size());
+        }
+    }
+
+    /**
+     * @param args The exact amount of arguments to require.
+     * @throws CommandNotEnoughArgumentsException If there are less than {@code args} arguments left.
+     * @throws CommandTooManyArgumentsException   If there are more than {@code args} arguments left.
+     * @see #requireMin(int)
+     * @see #requireMax(int)
+     */
+    public void requireExactly(int args) throws CommandException {
+        requireMin(args);
+        requireMax(args);
+    }
+
+    /**
+     * @return If this {@link ArgConsumer} has consumed at least one argument.
+     * @see #consumed()
+     * @see #consumedString()
+     */
+    public boolean hasConsumed() {
+        return !consumed.isEmpty();
+    }
+
+    /**
+     * @return The last argument this {@link ArgConsumer} has consumed, or the {@link CommandArgument#unknown() unknown}
+     * argument if no arguments have been consumed yet.
+     * @see #consumedString()
+     * @see #hasConsumed()
+     */
+    public CommandArgument consumed() {
+        return consumed.size() > 0 ? consumed.getLast() : CommandArgument.unknown();
+    }
+
+    /**
+     * @return The value of thelast argument this {@link ArgConsumer} has consumed, or an empty string if no arguments
+     * have been consumed yet
+     * @see #consumed()
+     * @see #hasConsumed()
+     */
+    public String consumedString() {
+        return consumed().value;
+    }
+
+    /**
+     * @return A copy of this {@link ArgConsumer}. It has the same arguments (both consumed and not), but does not
+     * affect or mutate this instance. Useful for the various {@code peek} functions
+     */
+    public ArgConsumer copy() {
+        return new ArgConsumer(manager, args, consumed);
+    }
+
+    private final class Context implements IDatatypeContext {
+
+        @Override
+        public final IBaritone getBaritone() {
+            return ArgConsumer.this.manager.getBaritone();
+        }
+
+        @Override
+        public final ArgConsumer getConsumer() {
+            return ArgConsumer.this;
+        }
+    }
+}

src/api/java/baritone/api/utils/command/helpers/pagination/Paginator.java

@@ -0,0 +1,184 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.helpers.pagination;
+
+import baritone.api.utils.Helper;
+import baritone.api.utils.command.exception.CommandException;
+import baritone.api.utils.command.exception.CommandInvalidTypeException;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.TextComponentString;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.util.text.event.ClickEvent;
+import net.minecraft.util.text.event.HoverEvent;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Function;
+
+public class Paginator<E> implements Helper {
+
+    public final List<E> entries;
+    public int pageSize = 8;
+    public int page = 1;
+
+    public Paginator(List<E> entries) {
+        this.entries = entries;
+    }
+
+    public Paginator(E... entries) {
+        this.entries = Arrays.asList(entries);
+    }
+
+    public Paginator<E> setPageSize(int pageSize) {
+        this.pageSize = pageSize;
+        return this;
+    }
+
+    public int getMaxPage() {
+        return (entries.size() - 1) / pageSize + 1;
+    }
+
+    public boolean validPage(int page) {
+        return page > 0 && page <= getMaxPage();
+    }
+
+    public Paginator<E> skipPages(int pages) {
+        page += pages;
+        return this;
+    }
+
+    public void display(Function<E, ITextComponent> transform, String commandPrefix) {
+        int offset = (page - 1) * pageSize;
+        for (int i = offset; i < offset + pageSize; i++) {
+            if (i < entries.size()) {
+                logDirect(transform.apply(entries.get(i)));
+            } else {
+                logDirect("--", TextFormatting.DARK_GRAY);
+            }
+        }
+        boolean hasPrevPage = commandPrefix != null && validPage(page - 1);
+        boolean hasNextPage = commandPrefix != null && validPage(page + 1);
+        ITextComponent prevPageComponent = new TextComponentString("<<");
+        if (hasPrevPage) {
+            prevPageComponent.getStyle()
+                    .setClickEvent(new ClickEvent(
+                            ClickEvent.Action.RUN_COMMAND,
+                            String.format("%s %d", commandPrefix, page - 1)
+                    ))
+                    .setHoverEvent(new HoverEvent(
+                            HoverEvent.Action.SHOW_TEXT,
+                            new TextComponentString("Click to view previous page")
+                    ));
+        } else {
+            prevPageComponent.getStyle().setColor(TextFormatting.DARK_GRAY);
+        }
+        ITextComponent nextPageComponent = new TextComponentString(">>");
+        if (hasNextPage) {
+            nextPageComponent.getStyle()
+                    .setClickEvent(new ClickEvent(
+                            ClickEvent.Action.RUN_COMMAND,
+                            String.format("%s %d", commandPrefix, page + 1)
+                    ))
+                    .setHoverEvent(new HoverEvent(
+                            HoverEvent.Action.SHOW_TEXT,
+                            new TextComponentString("Click to view next page")
+                    ));
+        } else {
+            nextPageComponent.getStyle().setColor(TextFormatting.DARK_GRAY);
+        }
+        ITextComponent pagerComponent = new TextComponentString("");
+        pagerComponent.getStyle().setColor(TextFormatting.GRAY);
+        pagerComponent.appendSibling(prevPageComponent);
+        pagerComponent.appendText(" | ");
+        pagerComponent.appendSibling(nextPageComponent);
+        pagerComponent.appendText(String.format(" %d/%d", page, getMaxPage()));
+        logDirect(pagerComponent);
+    }
+
+    public void display(Function<E, ITextComponent> transform) {
+        display(transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, Paginator<T> pagi, Runnable pre, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        int page = 1;
+        consumer.requireMax(1);
+        if (consumer.hasAny()) {
+            page = consumer.getAs(Integer.class);
+            if (!pagi.validPage(page)) {
+                throw new CommandInvalidTypeException(
+                        consumer.consumed(),
+                        String.format(
+                                "a valid page (1-%d)",
+                                pagi.getMaxPage()
+                        ),
+                        consumer.consumed().value
+                );
+            }
+        }
+        pagi.skipPages(page - pagi.page);
+        if (pre != null) {
+            pre.run();
+        }
+        pagi.display(transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, List<T> elems, Runnable pre, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        paginate(consumer, new Paginator<>(elems), pre, transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, T[] elems, Runnable pre, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        paginate(consumer, Arrays.asList(elems), pre, transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, Paginator<T> pagi, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        paginate(consumer, pagi, null, transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, List<T> elems, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        paginate(consumer, new Paginator<>(elems), null, transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, T[] elems, Function<T, ITextComponent> transform, String commandPrefix) throws CommandException {
+        paginate(consumer, Arrays.asList(elems), null, transform, commandPrefix);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, Paginator<T> pagi, Runnable pre, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, pagi, pre, transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, List<T> elems, Runnable pre, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, new Paginator<>(elems), pre, transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, T[] elems, Runnable pre, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, Arrays.asList(elems), pre, transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, Paginator<T> pagi, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, pagi, null, transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, List<T> elems, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, new Paginator<>(elems), null, transform, null);
+    }
+
+    public static <T> void paginate(ArgConsumer consumer, T[] elems, Function<T, ITextComponent> transform) throws CommandException {
+        paginate(consumer, Arrays.asList(elems), null, transform, null);
+    }
+}

src/api/java/baritone/api/utils/command/helpers/tabcomplete/TabCompleteHelper.java

@@ -0,0 +1,289 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.helpers.tabcomplete;
+
+import baritone.api.BaritoneAPI;
+import baritone.api.Settings;
+import baritone.api.event.events.TabCompleteEvent;
+import baritone.api.utils.SettingsUtil;
+import baritone.api.utils.command.datatypes.IDatatype;
+import baritone.api.utils.command.helpers.arguments.ArgConsumer;
+import baritone.api.utils.command.manager.ICommandManager;
+import net.minecraft.util.ResourceLocation;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.Locale;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.stream.Stream;
+
+/**
+ * The {@link TabCompleteHelper} is a <b>single-use</b> object that helps you handle tab completion. It includes helper
+ * methods for appending and prepending streams, sorting, filtering by prefix, and so on.
+ * <p>
+ * The recommended way to use this class is:
+ * <ul>
+ * <li>Create a new instance with the empty constructor</li>
+ * <li>Use {@code append}, {@code prepend} or {@code add<something>} methods to add completions</li>
+ * <li>Sort using {@link #sort(Comparator)} or {@link #sortAlphabetically()} and then filter by prefix using
+ * {@link #filterPrefix(String)}</li>
+ * <li>Get the stream using {@link #stream()}</li>
+ * <li>Pass it up to whatever's calling your tab complete function (i.e.
+ * {@link ICommandManager#tabComplete(String)} or {@link ArgConsumer#tabCompleteDatatype(IDatatype)})</li>
+ * </ul>
+ * <p>
+ * For advanced users: if you're intercepting {@link TabCompleteEvent}s directly, use {@link #build()} instead for an
+ * array.
+ */
+public class TabCompleteHelper {
+
+    private Stream<String> stream;
+
+    public TabCompleteHelper(String[] base) {
+        stream = Stream.of(base);
+    }
+
+    public TabCompleteHelper(List<String> base) {
+        stream = base.stream();
+    }
+
+    public TabCompleteHelper() {
+        stream = Stream.empty();
+    }
+
+    /**
+     * Appends the specified stream to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param source The stream to append
+     * @return This {@link TabCompleteHelper} after having appended the stream
+     * @see #append(String...)
+     * @see #append(Class)
+     */
+    public TabCompleteHelper append(Stream<String> source) {
+        stream = Stream.concat(stream, source);
+        return this;
+    }
+
+    /**
+     * Appends the specified strings to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param source The stream to append
+     * @return This {@link TabCompleteHelper} after having appended the strings
+     * @see #append(Stream)
+     * @see #append(Class)
+     */
+    public TabCompleteHelper append(String... source) {
+        return append(Stream.of(source));
+    }
+
+    /**
+     * Appends all values of the specified enum to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param num The enum to append the values of
+     * @return This {@link TabCompleteHelper} after having appended the values
+     * @see #append(Stream)
+     * @see #append(String...)
+     */
+    public TabCompleteHelper append(Class<? extends Enum<?>> num) {
+        return append(
+                Stream.of(num.getEnumConstants())
+                        .map(Enum::name)
+                        .map(String::toLowerCase)
+        );
+    }
+
+    /**
+     * Prepends the specified stream to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param source The stream to prepend
+     * @return This {@link TabCompleteHelper} after having prepended the stream
+     * @see #prepend(String...)
+     * @see #prepend(Class)
+     */
+    public TabCompleteHelper prepend(Stream<String> source) {
+        stream = Stream.concat(source, stream);
+        return this;
+    }
+
+    /**
+     * Prepends the specified strings to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param source The stream to prepend
+     * @return This {@link TabCompleteHelper} after having prepended the strings
+     * @see #prepend(Stream)
+     * @see #prepend(Class)
+     */
+    public TabCompleteHelper prepend(String... source) {
+        return prepend(Stream.of(source));
+    }
+
+    /**
+     * Prepends all values of the specified enum to this {@link TabCompleteHelper} and returns it for chaining
+     *
+     * @param num The enum to prepend the values of
+     * @return This {@link TabCompleteHelper} after having prepended the values
+     * @see #prepend(Stream)
+     * @see #prepend(String...)
+     */
+    public TabCompleteHelper prepend(Class<? extends Enum<?>> num) {
+        return prepend(
+                Stream.of(num.getEnumConstants())
+                        .map(Enum::name)
+                        .map(String::toLowerCase)
+        );
+    }
+
+    /**
+     * Apply the specified {@code transform} to every element <b>currently</b> in this {@link TabCompleteHelper} and
+     * return this object for chaining
+     *
+     * @param transform The transform to apply
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper map(Function<String, String> transform) {
+        stream = stream.map(transform);
+        return this;
+    }
+
+    /**
+     * Apply the specified {@code filter} to every element <b>currently</b> in this {@link TabCompleteHelper} and return
+     * this object for chaining
+     *
+     * @param filter The filter to apply
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper filter(Predicate<String> filter) {
+        stream = stream.filter(filter);
+        return this;
+    }
+
+    /**
+     * Apply the specified {@code sort} to every element <b>currently</b> in this {@link TabCompleteHelper} and return
+     * this object for chaining
+     *
+     * @param comparator The comparator to use
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper sort(Comparator<String> comparator) {
+        stream = stream.sorted(comparator);
+        return this;
+    }
+
+    /**
+     * Sort every element <b>currently</b> in this {@link TabCompleteHelper} alphabetically and return this object for
+     * chaining
+     *
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper sortAlphabetically() {
+        return sort(String.CASE_INSENSITIVE_ORDER);
+    }
+
+    /**
+     * Filter out any element that doesn't start with {@code prefix} and return this object for chaining
+     *
+     * @param prefix The prefix to filter for
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper filterPrefix(String prefix) {
+        return filter(x -> x.toLowerCase(Locale.US).startsWith(prefix.toLowerCase(Locale.US)));
+    }
+
+    /**
+     * Filter out any element that doesn't start with {@code prefix} and return this object for chaining
+     * <p>
+     * Assumes every element in this {@link TabCompleteHelper} is a {@link ResourceLocation}
+     *
+     * @param prefix The prefix to filter for
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper filterPrefixNamespaced(String prefix) {
+        return filterPrefix(new ResourceLocation(prefix).toString());
+    }
+
+    /**
+     * @return An array containing every element in this {@link TabCompleteHelper}
+     * @see #stream()
+     */
+    public String[] build() {
+        return stream.toArray(String[]::new);
+    }
+
+    /**
+     * @return A stream containing every element in this {@link TabCompleteHelper}
+     * @see #build()
+     */
+    public Stream<String> stream() {
+        return stream;
+    }
+
+    /**
+     * Appends every command in the specified {@link ICommandManager} to this {@link TabCompleteHelper}
+     *
+     * @param manager A command manager
+     *
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper addCommands(ICommandManager manager) {
+        return append(manager.getRegistry().descendingStream()
+                .flatMap(command -> command.names.stream())
+                .distinct()
+        );
+    }
+
+    /**
+     * Appends every setting in the {@link Settings} to this {@link TabCompleteHelper}
+     *
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper addSettings() {
+        return append(
+                BaritoneAPI.getSettings().allSettings.stream()
+                        .map(Settings.Setting::getName)
+                        .filter(s -> !s.equalsIgnoreCase("logger"))
+                        .sorted(String.CASE_INSENSITIVE_ORDER)
+        );
+    }
+
+    /**
+     * Appends every modified setting in the {@link Settings} to this {@link TabCompleteHelper}
+     *
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper addModifiedSettings() {
+        return append(
+                SettingsUtil.modifiedSettings(BaritoneAPI.getSettings()).stream()
+                        .map(Settings.Setting::getName)
+                        .sorted(String.CASE_INSENSITIVE_ORDER)
+        );
+    }
+
+    /**
+     * Appends every {@link Boolean} setting in the {@link Settings} to this {@link TabCompleteHelper}
+     *
+     * @return This {@link TabCompleteHelper}
+     */
+    public TabCompleteHelper addToggleableSettings() {
+        return append(
+                BaritoneAPI.getSettings().getAllValuesByType(Boolean.class).stream()
+                        .map(Settings.Setting::getName)
+                        .sorted(String.CASE_INSENSITIVE_ORDER)
+        );
+    }
+}

src/api/java/baritone/api/utils/command/manager/ICommandManager.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.manager;
+
+import baritone.api.IBaritone;
+import baritone.api.utils.command.Command;
+import baritone.api.utils.command.argument.CommandArgument;
+import baritone.api.utils.command.registry.Registry;
+import net.minecraft.util.Tuple;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * @author Brady
+ * @since 9/21/2019
+ */
+public interface ICommandManager {
+
+    IBaritone getBaritone();
+
+    Registry<Command> getRegistry();
+
+    /**
+     * @param name The command name to search for.
+     * @return The command, if found.
+     */
+    Command getCommand(String name);
+
+    boolean execute(String string);
+
+    boolean execute(Tuple<String, List<CommandArgument>> expanded);
+
+    Stream<String> tabComplete(Tuple<String, List<CommandArgument>> expanded);
+
+    Stream<String> tabComplete(String prefix);
+}

src/api/java/baritone/api/utils/command/registry/Registry.java

@@ -0,0 +1,135 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.api.utils.command.registry;
+
+import java.util.*;
+import java.util.function.Consumer;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+/**
+ * This registry class allows for registration and unregistration of a certain type. This is mainly designed for use by
+ * event handlers where newly registered ones are encountered first during iteration and can therefore override older
+ * ones. In Baritone, this is used for commands and argument parsers so that mods and addons can extend Baritone's
+ * functionality without resorting to hacks, wrappers, or mixins.
+ *
+ * @param <V> The entry type that will be stored in this registry. This can be anything, really - preferably anything
+ *            that works as a HashMap key, as that's what's used to keep track of which entries are registered or not.
+ */
+public class Registry<V> {
+
+    /**
+     * An internal linked list of all the entries that are currently registered. This is a linked list so that entries
+     * can be inserted at the beginning, which means that newer entries are encountered first during iteration. This is
+     * an important property of the registry that makes it more useful than a simple list, and also the reason it does
+     * not just use a map.
+     */
+    private final Deque<V> _entries = new LinkedList<>();
+    /**
+     * A HashSet containing every entry currently registered. Entries are added to this set when something is registered
+     * and removed from the set when they are unregistered. An entry being present in this set indicates that it is
+     * currently registered, can be removed, and should not be reregistered until it is removed.
+     */
+    private final Set<V> registered = new HashSet<>();
+    /**
+     * The collection of entries that are currently in this registry. This is a collection (and not a list) because,
+     * internally, entries are stored in a linked list, which is not the same as a normal list.
+     */
+    public final Collection<V> entries = Collections.unmodifiableCollection(_entries);
+
+    /**
+     * @param entry The entry to check.
+     * @return If this entry is currently registered in this registry.
+     */
+    public boolean registered(V entry) {
+        return registered.contains(entry);
+    }
+
+    /**
+     * Ensures that the entry {@code entry} is registered.
+     *
+     * @param entry The entry to register.
+     * @return A boolean indicating whether or not this is a new registration. No matter the value of this boolean, the
+     * entry is always guaranteed to now be in this registry. This boolean simply indicates if the entry was <i>not</i>
+     * in the map prior to this method call.
+     */
+    public boolean register(V entry) {
+        if (!registered(entry)) {
+            _entries.addFirst(entry);
+            registered.add(entry);
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Unregisters this entry from this registry. After this method call, the entry is guaranteed to be removed from the
+     * registry, since each entry only ever appears once.
+     *
+     * @param entry The entry to unregister.
+     */
+    public void unregister(V entry) {
+        if (registered(entry)) {
+            return;
+        }
+        _entries.remove(entry);
+        registered.remove(entry);
+    }
+
+    /**
+     * Returns an iterator that iterates over each entry in this registry, with the newest elements iterated over first.
+     * Internally, as new elements are prepended to the registry rather than appended to the end, this order is the best
+     * way to search through the registry if you want to discover newer items first.
+     */
+    public Iterator<V> iterator() {
+        return _entries.iterator();
+    }
+
+    /**
+     * Returns an iterator that iterates over each entry in this registry, in the order they were added. Internally,
+     * this iterates through the registry backwards, as new elements are prepended to the registry rather than appended
+     * to the end. You should only do this when you need to, for example, list elements in order - it is almost always
+     * fine to simply use {@link Iterable#forEach(Consumer) forEach} on the {@link #entries} collection instead.
+     */
+    public Iterator<V> descendingIterator() {
+        return _entries.descendingIterator();
+    }
+
+    /**
+     * Returns a stream that contains each entry in this registry, with the newest elements ordered first. Internally,
+     * as new elements are prepended to the registry rather than appended to the end, this order is the best way to
+     * search through the registry if you want to discover newer items first.
+     */
+    public Stream<V> stream() {
+        return _entries.stream();
+    }
+
+    /**
+     * Returns a stream that returns each entry in this registry, in the order they were added. Internally, this orders
+     * the registry backwards, as new elements are prepended to the registry rather than appended to the end. You should
+     * only use this when you need to, for example, list elements in order - it is almost always fine to simply use the
+     * regular {@link #stream()} method instead.
+     */
+    public Stream<V> descendingStream() {
+        return StreamSupport.stream(Spliterators.spliterator(
+                descendingIterator(),
+                _entries.size(),
+                Spliterator.SIZED | Spliterator.SUBSIZED
+        ), false);
+    }
+}

src/api/java/baritone/api/utils/interfaces/IGoalRenderPos.java

@@ -20,5 +20,6 @@ package baritone.api.utils.interfaces;
 import net.minecraft.util.math.BlockPos;
 
 public interface IGoalRenderPos {
+
     BlockPos getGoalPos();
 }

src/launch/java/baritone/launch/mixins/MixinBitArray.java

@@ -0,0 +1,91 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.utils.accessor.IBitArray;
+import net.minecraft.util.BitArray;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+
+@Mixin(BitArray.class)
+public abstract class MixinBitArray implements IBitArray {
+
+    @Shadow
+    @Final
+    private long[] longArray;
+
+    @Shadow
+    @Final
+    private int bitsPerEntry;
+
+    @Shadow
+    @Final
+    private long maxEntryValue;
+
+    @Shadow
+    @Final
+    private int arraySize;
+
+    /**
+     * why did mojang divide by 64 instead of shifting right by 6 (2^6=64)?
+     * why did mojang modulo by 64 instead of ANDing with 63?
+     * also removed validation check
+     *
+     * @author LoganDark
+     */
+    @Override
+    @Unique
+    public int getAtFast(int index) {
+        final int b = bitsPerEntry;
+        final long mev = maxEntryValue;
+        final int i = index * b;
+        final int j = i >> 6;
+        final int l = i & 63;
+        final int k = ((index + 1) * b - 1) >> 6;
+
+        if (j == k) {
+            return (int) (this.longArray[j] >>> l & mev);
+        } else {
+            return (int) ((this.longArray[j] >>> l | longArray[k] << (64 - l)) & mev);
+        }
+    }
+
+    @Override
+    @Unique
+    public int[] toArray() {
+        int[] out = new int[arraySize];
+
+        for (int idx = 0, kl = bitsPerEntry - 1; idx < arraySize; idx++, kl += bitsPerEntry) {
+            final int i = idx * bitsPerEntry;
+            final int j = i >> 6;
+            final int l = i & 63;
+            final int k = kl >> 6;
+            final long jl = longArray[j] >>> l;
+
+            if (j == k) {
+                out[idx] = (int) (jl & maxEntryValue);
+            } else {
+                out[idx] = (int) ((jl | longArray[k] << (64 - l)) & maxEntryValue);
+            }
+        }
+
+        return out;
+    }
+}

src/launch/java/baritone/launch/mixins/MixinBlockStateContainer.java

@@ -0,0 +1,63 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.utils.accessor.IBitArray;
+import baritone.utils.accessor.IBlockStateContainer;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.util.BitArray;
+import net.minecraft.world.chunk.BlockStateContainer;
+import net.minecraft.world.chunk.IBlockStatePalette;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(BlockStateContainer.class)
+public abstract class MixinBlockStateContainer implements IBlockStateContainer {
+
+    @Shadow
+    protected BitArray storage;
+
+    @Shadow
+    protected IBlockStatePalette palette;
+
+    @Override
+    @Accessor
+    public abstract BitArray getStorage();
+
+    @Override
+    @Accessor
+    public abstract IBlockStatePalette getPalette();
+
+    @Override
+    @Unique
+    public IBlockState getFast(int index) {
+        return palette.getBlockState(((IBitArray) storage).getAtFast(index));
+    }
+
+    @Override
+    public IBlockState getAtPalette(int index) {
+        return palette.getBlockState(index);
+    }
+
+    @Override
+    public int[] storageArray() {
+        return ((IBitArray) storage).toArray();
+    }
+}

src/launch/java/baritone/launch/mixins/MixinChatTabCompleter.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import net.minecraft.client.gui.GuiChat;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(GuiChat.ChatTabCompleter.class)
+public abstract class MixinChatTabCompleter extends MixinTabCompleter {
+
+    @Inject(
+            method = "<init>*",
+            at = @At("RETURN")
+    )
+    private void onConstruction(CallbackInfo ci) {
+        isChatCompleter = true;
+    }
+
+    @Inject(
+            method = "complete",
+            at = @At("HEAD"),
+            cancellable = true
+    )
+    private void onComplete(CallbackInfo ci) {
+        if (dontComplete) {
+            ci.cancel();
+        }
+    }
+}

src/launch/java/baritone/launch/mixins/MixinGuiChat.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.utils.accessor.ITabCompleter;
+import net.minecraft.client.gui.GuiChat;
+import net.minecraft.util.TabCompleter;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(GuiChat.class)
+public abstract class MixinGuiChat implements net.minecraft.util.ITabCompleter {
+
+    @Shadow
+    private TabCompleter tabCompleter;
+
+    @Inject(
+            method = "setCompletions",
+            at = @At("HEAD"),
+            cancellable = true
+    )
+    private void onSetCompletions(String[] newCompl, CallbackInfo ci) {
+        if (((ITabCompleter) tabCompleter).onGuiChatSetCompletions(newCompl)) {
+            ci.cancel();
+        }
+    }
+}

src/launch/java/baritone/launch/mixins/MixinGuiScreen.java

@@ -0,0 +1,33 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.api.accessor.IGuiScreen;
+import net.minecraft.client.gui.GuiScreen;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Invoker;
+
+import java.net.URI;
+
+@Mixin(GuiScreen.class)
+public abstract class MixinGuiScreen implements IGuiScreen {
+
+    @Override
+    @Invoker("openWebLink")
+    public abstract void openLink(URI url);
+}

src/launch/java/baritone/launch/mixins/MixinItemStack.java

@@ -0,0 +1,68 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.api.accessor.IItemStack;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ItemStack.class)
+public abstract class MixinItemStack implements IItemStack {
+
+    @Shadow
+    @Final
+    private Item item;
+
+    @Shadow
+    private int itemDamage;
+
+    @Unique
+    private int baritoneHash;
+
+    private void recalculateHash() {
+        baritoneHash = item == null ? -1 : item.hashCode() + itemDamage;
+    }
+
+    @Inject(
+            method = "<init>*",
+            at = @At("RETURN")
+    )
+    private void onInit(CallbackInfo ci) {
+        recalculateHash();
+    }
+
+    @Inject(
+            method = "setItemDamage",
+            at = @At("TAIL")
+    )
+    private void onItemDamageSet(CallbackInfo ci) {
+        recalculateHash();
+    }
+
+    @Override
+    public int getBaritoneHash() {
+        return baritoneHash;
+    }
+}

src/launch/java/baritone/launch/mixins/MixinMinecraft.java

@@ -17,7 +17,6 @@
 
 package baritone.launch.mixins;
 
-import baritone.Baritone;
 import baritone.api.BaritoneAPI;
 import baritone.api.IBaritone;
 import baritone.api.event.events.BlockInteractEvent;
@@ -59,7 +58,7 @@ public class MixinMinecraft {
             at = @At("RETURN")
     )
     private void postInit(CallbackInfo ci) {
-        ((Baritone) BaritoneAPI.getProvider().getPrimaryBaritone()).init();
+        BaritoneAPI.getProvider().getPrimaryBaritone();
     }
 
     @Inject(

src/launch/java/baritone/launch/mixins/MixinPlayerControllerMP.java

@@ -26,6 +26,7 @@ import org.spongepowered.asm.mixin.gen.Invoker;
 
 @Mixin(PlayerControllerMP.class)
 public abstract class MixinPlayerControllerMP implements IPlayerControllerMP {
+
     @Accessor
     @Override
     public abstract void setIsHittingBlock(boolean isHittingBlock);

src/launch/java/baritone/launch/mixins/MixinStateImplementation.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import com.google.common.collect.ImmutableMap;
+import net.minecraft.block.properties.IProperty;
+import org.spongepowered.asm.mixin.*;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(targets = "net.minecraft.block.state.BlockStateContainer$StateImplementation")
+public abstract class MixinStateImplementation {
+
+    @Shadow
+    @Final
+    private ImmutableMap<IProperty<?>, Comparable<?>> properties;
+
+    /**
+     * Block states are fucking immutable
+     */
+    @Unique
+    private int hashCode;
+
+    @Inject(
+            method = "<init>*",
+            at = @At("RETURN")
+    )
+    private void onInit(CallbackInfo ci) {
+        hashCode = properties.hashCode();
+    }
+
+    /**
+     * Cache this instead of using the fucking map every time
+     *
+     * @author LoganDark
+     * @reason Regular IBlockState generates a new hash every fucking time. This is not needed when scanning millions
+     * per second
+     */
+    @Override
+    @Overwrite
+    public int hashCode() {
+        return hashCode;
+    }
+}

src/launch/java/baritone/launch/mixins/MixinTabCompleter.java

@@ -0,0 +1,130 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.launch.mixins;
+
+import baritone.api.BaritoneAPI;
+import baritone.api.IBaritone;
+import baritone.api.event.events.TabCompleteEvent;
+import baritone.utils.accessor.ITabCompleter;
+import net.minecraft.client.gui.GuiTextField;
+import net.minecraft.util.TabCompleter;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(TabCompleter.class)
+public abstract class MixinTabCompleter implements ITabCompleter {
+
+    @Shadow
+    @Final
+    protected GuiTextField textField;
+
+    @Shadow
+    protected boolean requestedCompletions;
+
+    @Shadow
+    public abstract void setCompletions(String... newCompl);
+
+    @Unique
+    protected boolean isChatCompleter = false;
+
+    @Unique
+    protected boolean dontComplete = false;
+
+    @Override
+    public String getPrefix() {
+        return textField.getText().substring(0, textField.getCursorPosition());
+    }
+
+    @Override
+    public void setPrefix(String prefix) {
+        textField.setText(prefix + textField.getText().substring(textField.getCursorPosition()));
+        textField.setCursorPosition(prefix.length());
+    }
+
+    @Inject(
+            method = "requestCompletions",
+            at = @At("HEAD"),
+            cancellable = true
+    )
+    private void onRequestCompletions(String prefix, CallbackInfo ci) {
+        if (!isChatCompleter) {
+            return;
+        }
+
+        IBaritone baritone = BaritoneAPI.getProvider().getPrimaryBaritone();
+
+        TabCompleteEvent.Pre event = new TabCompleteEvent.Pre(prefix);
+        baritone.getGameEventHandler().onPreTabComplete(event);
+
+        if (event.isCancelled()) {
+            ci.cancel();
+            return;
+        }
+
+        if (event.prefix.wasModified()) {
+            setPrefix(event.prefix.get());
+        }
+
+        if (event.completions.wasModified()) {
+            ci.cancel();
+
+            dontComplete = true;
+
+            try {
+                requestedCompletions = true;
+                setCompletions(event.completions.get());
+            } finally {
+                dontComplete = false;
+            }
+        }
+    }
+
+    @Override
+    public boolean onGuiChatSetCompletions(String[] newCompl) {
+        IBaritone baritone = BaritoneAPI.getProvider().getPrimaryBaritone();
+
+        if (baritone == null) {
+            return false;
+        }
+
+        TabCompleteEvent.Post event = new TabCompleteEvent.Post(getPrefix(), newCompl);
+        baritone.getGameEventHandler().onPostTabComplete(event);
+
+        if (event.isCancelled()) {
+            return true;
+        }
+
+        if (event.prefix.wasModified()) {
+            String prefix = event.prefix.get();
+            textField.setText(prefix + textField.getText().substring(textField.getCursorPosition()));
+            textField.setCursorPosition(prefix.length());
+        }
+
+        if (event.completions.wasModified()) {
+            setCompletions(event.completions.get());
+            return true;
+        }
+
+        return false;
+    }
+}

src/launch/resources/mixins.baritone.json

@@ -9,6 +9,9 @@
   },
   "client": [
     "MixinAnvilChunkLoader",
+    "MixinBitArray",
+    "MixinBlockStateContainer",
+    "MixinChatTabCompleter",
     "MixinChunkProviderClient",
     "MixinChunkProviderServer",
     "MixinChunkRenderContainer",
@@ -16,12 +19,17 @@
     "MixinEntityLivingBase",
     "MixinEntityPlayerSP",
     "MixinEntityRenderer",
+    "MixinGuiChat",
+    "MixinGuiScreen",
+    "MixinItemStack",
     "MixinMinecraft",
     "MixinNetHandlerPlayClient",
     "MixinNetworkManager",
     "MixinPlayerControllerMP",
     "MixinRenderChunk",
     "MixinRenderList",
+    "MixinStateImplementation",
+    "MixinTabCompleter",
     "MixinVboRenderList",
     "MixinWorldClient"
   ]