simple inventory management

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

@@ -50,6 +50,11 @@ public class Settings {
      */
     public Setting<Boolean> allowPlace = new Setting<>(true);
 
+    /**
+     * Allow Baritone to move items in your inventory to your hotbar
+     */
+    public Setting<Boolean> allowInventory = new Setting<>(false);
+
     /**
      * It doesn't actually take twenty ticks to place a block, this cost is so high
      * because we want to generally conserve blocks which might be limited

src/main/java/baritone/Baritone.java

@@ -22,10 +22,7 @@ import baritone.api.IBaritone;
 import baritone.api.Settings;
 import baritone.api.event.listener.IEventBus;
 import baritone.api.utils.IPlayerContext;
-import baritone.behavior.Behavior;
-import baritone.behavior.LookBehavior;
-import baritone.behavior.MemoryBehavior;
-import baritone.behavior.PathingBehavior;
+import baritone.behavior.*;
 import baritone.cache.WorldProvider;
 import baritone.event.GameEventHandler;
 import baritone.process.CustomGoalProcess;
@@ -110,6 +107,7 @@ public class Baritone implements IBaritone {
             pathingBehavior = new PathingBehavior(this);
             lookBehavior = new LookBehavior(this);
             memoryBehavior = new MemoryBehavior(this);
+            new InventoryBehavior(this);
             inputOverrideHandler = new InputOverrideHandler(this);
             new ExampleBaritoneControl(this);
         }

src/main/java/baritone/behavior/InventoryBehavior.java

@@ -0,0 +1,98 @@
+/*
+ * 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.behavior;
+
+import baritone.Baritone;
+import baritone.api.event.events.TickEvent;
+import baritone.utils.ToolSet;
+import net.minecraft.block.Block;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.inventory.GuiInventory;
+import net.minecraft.init.Blocks;
+import net.minecraft.inventory.ClickType;
+import net.minecraft.item.ItemPickaxe;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.ItemTool;
+import net.minecraft.util.NonNullList;
+
+public class InventoryBehavior extends Behavior {
+    public InventoryBehavior(Baritone baritone) {
+        super(baritone);
+    }
+
+    @Override
+    public void onTick(TickEvent event) {
+        if (!Baritone.settings().allowInventory.get()) {
+            return;
+        }
+        if (event.getType() == TickEvent.Type.OUT) {
+            return;
+        }
+        if (Minecraft.getMinecraft().currentScreen != null && !(Minecraft.getMinecraft().currentScreen instanceof GuiInventory)) {
+            // we have chat or a chest or something open
+            return;
+        }
+        if (firstValidThrowaway() >= 9) { // aka there are none on the hotbar, but there are some in main inventory
+            swapWithHotBar(firstValidThrowaway(), 8);
+        }
+        int pick = bestToolAgainst(Blocks.STONE, ItemPickaxe.class);
+        if (pick >= 9) {
+            swapWithHotBar(pick, 0);
+        }
+    }
+
+    private void swapWithHotBar(int inInventory, int inHotbar) {
+        int windowId = ctx.player().inventoryContainer.windowId;
+        // aaaaaaaaaaaaaaaaaaaaaaaaaaaa
+        // aaaaaaaaAAAAAAaaaaaAAaaaAAAAaaAAA
+        if (inInventory < 9) {
+            inInventory += 36;
+        }
+        ctx.playerController().windowClick(windowId, inInventory, inHotbar, ClickType.SWAP, ctx.player());
+    }
+
+    private int firstValidThrowaway() { // TODO offhand idk
+        NonNullList<ItemStack> invy = ctx.player().inventory.mainInventory;
+        for (int i = 0; i < invy.size(); i++) {
+            if (Baritone.settings().acceptableThrowawayItems.get().contains(invy.get(i).getItem())) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    private int bestToolAgainst(Block against, Class<? extends ItemTool> klass) {
+        NonNullList<ItemStack> invy = ctx.player().inventory.mainInventory;
+        int bestInd = -1;
+        double bestSpeed = -1;
+        for (int i = 0; i < invy.size(); i++) {
+            ItemStack stack = invy.get(i);
+            if (stack.isEmpty()) {
+                continue;
+            }
+            if (klass.isInstance(stack.getItem())) {
+                double speed = ToolSet.calculateStrVsBlock(stack, against.getDefaultState()); // takes into account enchants
+                if (speed > bestSpeed) {
+                    bestSpeed = speed;
+                    bestInd = i;
+                }
+            }
+        }
+        return bestInd;
+    }
+}

src/main/java/baritone/utils/ToolSet.java

@@ -138,7 +138,7 @@ public class ToolSet {
      * @param state the blockstate to be mined
      * @return how long it would take in ticks
      */
-    private double calculateStrVsBlock(ItemStack item, IBlockState state) {
+    public static double calculateStrVsBlock(ItemStack item, IBlockState state) {
         float hardness = state.getBlockHardness(null, null);
         if (hardness < 0) {
             return -1;