better protection logic, fix placing outside worldborder

src/main/java/baritone/pathing/movement/CalculationContext.java

@@ -21,6 +21,7 @@ import baritone.Baritone;
 import baritone.api.pathing.movement.ActionCosts;
 import baritone.utils.Helper;
 import baritone.utils.ToolSet;
+import baritone.utils.pathing.BetterWorldBorder;
 import net.minecraft.enchantment.EnchantmentHelper;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.init.Items;
@@ -44,6 +45,7 @@ public class CalculationContext implements Helper {
     private final int maxFallHeightBucket;
     private final double waterWalkSpeed;
     private final double breakBlockAdditionalCost;
+    private final BetterWorldBorder worldBorder;
 
     public CalculationContext() {
         this(new ToolSet());
@@ -68,6 +70,32 @@ public class CalculationContext implements Helper {
         // why cache these things here, why not let the movements just get directly from settings?
         // because if some movements are calculated one way and others are calculated another way,
         // then you get a wildly inconsistent path that isn't optimal for either scenario.
+        this.worldBorder = new BetterWorldBorder(world().getWorldBorder());
+    }
+
+    public boolean canPlaceThrowawayAt(int x, int y, int z) {
+        if (!hasThrowaway()) { // only true if allowPlace is true, see constructor
+            return false;
+        }
+        if (isPossiblyProtected(x, y, z)) {
+            return false;
+        }
+        return worldBorder.canPlaceAt(x, z); // TODO perhaps MovementHelper.canPlaceAgainst could also use this?
+    }
+
+    public boolean canBreakAt(int x, int y, int z) {
+        if (!allowBreak()) {
+            return false;
+        }
+        if (isPossiblyProtected(x, y, z)) {
+            return false;
+        }
+        return true;
+    }
+
+    public boolean isPossiblyProtected(int x, int y, int z) {
+        // TODO more protection logic here; see #220
+        return false;
     }
 
     public ToolSet getToolSet() {

src/main/java/baritone/pathing/movement/MovementHelper.java

@@ -343,15 +343,6 @@ public interface MovementHelper extends ActionCosts, Helper {
         return state.isBlockNormalCube();
     }
 
-    static double getMiningDurationTicks(CalculationContext context, BetterBlockPos position, boolean includeFalling) {
-        IBlockState state = BlockStateInterface.get(position);
-        return getMiningDurationTicks(context, position.x, position.y, position.z, state, includeFalling);
-    }
-
-    static double getMiningDurationTicks(CalculationContext context, BetterBlockPos position, IBlockState state, boolean includeFalling) {
-        return getMiningDurationTicks(context, position.x, position.y, position.z, state, includeFalling);
-    }
-
     static double getMiningDurationTicks(CalculationContext context, int x, int y, int z, boolean includeFalling) {
         return getMiningDurationTicks(context, x, y, z, BlockStateInterface.get(x, y, z), includeFalling);
     }
@@ -359,7 +350,7 @@ public interface MovementHelper extends ActionCosts, Helper {
     static double getMiningDurationTicks(CalculationContext context, int x, int y, int z, IBlockState state, boolean includeFalling) {
         Block block = state.getBlock();
         if (!canWalkThrough(x, y, z, state)) {
-            if (!context.allowBreak()) {
+            if (!context.canBreakAt(x, y, z)) {
                 return COST_INF;
             }
             if (avoidBreaking(x, y, z, state)) {

src/main/java/baritone/pathing/movement/movements/MovementAscend.java

@@ -72,7 +72,7 @@ public class MovementAscend extends Movement {
         }
         boolean hasToPlace = false;
         if (!MovementHelper.canWalkOn(destX, y, destZ, toPlace)) {
-            if (!context.hasThrowaway()) {
+            if (!context.canPlaceThrowawayAt(destX, y, destZ)) {
                 return COST_INF;
             }
             if (toPlace.getBlock() != Blocks.AIR && !BlockStateInterface.isWater(toPlace.getBlock()) && !MovementHelper.isReplacable(destX, y, destZ, toPlace)) {

src/main/java/baritone/pathing/movement/movements/MovementParkour.java

@@ -118,7 +118,7 @@ public class MovementParkour extends Movement {
         int destX = x + 4 * xDiff;
         int destZ = z + 4 * zDiff;
         IBlockState toPlace = BlockStateInterface.get(destX, y - 1, destZ);
-        if (!context.hasThrowaway()) {
+        if (!context.canPlaceThrowawayAt(destX, y - 1, destZ)) {
             return;
         }
         if (toPlace.getBlock() != Blocks.AIR && !BlockStateInterface.isWater(toPlace.getBlock()) && !MovementHelper.isReplacable(destX, y - 1, destZ, toPlace)) {

src/main/java/baritone/pathing/movement/movements/MovementPillar.java

@@ -76,7 +76,7 @@ public class MovementPillar extends Movement {
                 return LADDER_UP_ONE_COST;
             }
         }
-        if (!context.hasThrowaway() && !ladder) {
+        if (!ladder && !context.canPlaceThrowawayAt(x, y, z)) {
             return COST_INF;
         }
         double hardness = MovementHelper.getMiningDurationTicks(context, x, y + 2, z, toBreak, true);

src/main/java/baritone/pathing/movement/movements/MovementTraverse.java

@@ -108,7 +108,7 @@ public class MovementTraverse extends Movement {
                 if (BlockStateInterface.isWater(destOn.getBlock()) && throughWater) {
                     return COST_INF;
                 }
-                if (!context.hasThrowaway()) {
+                if (!context.canPlaceThrowawayAt(destX, y - 1, destZ)) {
                     return COST_INF;
                 }
                 double hardness1 = MovementHelper.getMiningDurationTicks(context, destX, y, destZ, pb0, false);

src/main/java/baritone/utils/pathing/BetterWorldBorder.java

@@ -36,4 +36,11 @@ public class BetterWorldBorder implements Helper {
     public boolean entirelyContains(int x, int z) {
         return x + 1 > minX && x < maxX && z + 1 > minZ && z < maxZ;
     }
+
+    public boolean canPlaceAt(int x, int z) {
+        // move it in 1 block on all sides
+        // because we can't place a block at the very edge against a block outside the border
+        // it won't let us right click it
+        return x > minX && x + 1 < maxX && z > minZ && z + 1 < maxZ;
+    }
 }