Upstream Paper

src/main/java/net/minecraft/server/PathfinderGoalRemoveBlock.java

@@ -0,0 +1,131 @@
+package net.minecraft.server;
+
+import java.util.Random;
+import javax.annotation.Nullable;
+// CraftBukkit start
+import org.bukkit.craftbukkit.block.CraftBlock;
+import org.bukkit.event.entity.EntityInteractEvent;
+// CraftBukkit end
+
+public class PathfinderGoalRemoveBlock extends PathfinderGoalGotoTarget {
+
+    private final Block f;
+    private final EntityInsentient entity;
+    private int h;
+    private World world; // Paper
+
+    public PathfinderGoalRemoveBlock(Block block, EntityCreature entitycreature, double d0, int i) {
+        super(entitycreature, d0, 24, i);
+        this.f = block;
+        this.entity = entitycreature;
+        this.world = entitycreature.world; // Paper
+    }
+
+    public boolean a() {
+        return !this.entity.world.getGameRules().getBoolean("mobGriefing") ? false : (this.entity.getRandom().nextInt(20) != 0 ? false : super.a());
+    }
+
+    protected int a(EntityCreature entitycreature) {
+        return 0;
+    }
+
+    public boolean b() {
+        return super.b();
+    }
+
+    public void d() {
+        super.d();
+        this.entity.fallDistance = 1.0F;
+    }
+
+    public void c() {
+        super.c();
+        this.h = 0;
+    }
+
+    public void a(GeneratorAccess generatoraccess, BlockPosition blockposition) {}
+
+    public void a(World world, BlockPosition blockposition) {}
+
+    public void e() {
+        super.e();
+        World world = this.entity.world;
+        BlockPosition blockposition = new BlockPosition(this.entity);
+        BlockPosition blockposition1 = this.a(blockposition, (IBlockAccess) world);
+        Random random = this.entity.getRandom();
+
+        if (this.k() && blockposition1 != null) {
+            if (this.h > 0) {
+                this.entity.motY = 0.3D;
+                if (!world.isClientSide) {
+                    double d0 = 0.08D;
+
+                    ((WorldServer) world).a(new ParticleParamItem(Particles.C, new ItemStack(Items.EGG)), (double) blockposition1.getX() + 0.5D, (double) blockposition1.getY() + 0.7D, (double) blockposition1.getZ() + 0.5D, 3, ((double) random.nextFloat() - 0.5D) * 0.08D, ((double) random.nextFloat() - 0.5D) * 0.08D, ((double) random.nextFloat() - 0.5D) * 0.08D, 0.15000000596046448D);
+                }
+            }
+
+            if (this.h % 2 == 0) {
+                this.entity.motY = -0.3D;
+                if (this.h % 6 == 0) {
+                    this.a((GeneratorAccess) world, this.d);
+                }
+            }
+
+            if (this.h > 60) {
+                // CraftBukkit start - Step on eggs
+                EntityInteractEvent event = new EntityInteractEvent(this.entity.getBukkitEntity(), CraftBlock.at(world, blockposition1));
+                world.getServer().getPluginManager().callEvent((EntityInteractEvent) event);
+
+                if (event.isCancelled()) {
+                    return;
+                }
+                // CraftBukkit end
+                world.setAir(blockposition1);
+                if (!world.isClientSide) {
+                    for (int i = 0; i < 20; ++i) {
+                        double d1 = random.nextGaussian() * 0.02D;
+                        double d2 = random.nextGaussian() * 0.02D;
+                        double d3 = random.nextGaussian() * 0.02D;
+
+                        ((WorldServer) world).a(Particles.J, (double) blockposition1.getX() + 0.5D, (double) blockposition1.getY(), (double) blockposition1.getZ() + 0.5D, 1, d1, d2, d3, 0.15000000596046448D);
+                    }
+
+                    this.a(world, this.d);
+                }
+            }
+
+            ++this.h;
+        }
+
+    }
+
+    @Nullable
+    private BlockPosition a(BlockPosition blockposition, IBlockAccess iblockaccess) {
+        Block block = world.getBlockIfLoaded(blockposition); // Paper
+        if (block == null) return null; // Paper
+        if (block == this.f) { // Paper
+            return blockposition;
+        } else {
+            BlockPosition[] ablockposition = new BlockPosition[] { blockposition.down(), blockposition.west(), blockposition.east(), blockposition.north(), blockposition.south(), blockposition.down().down()};
+            BlockPosition[] ablockposition1 = ablockposition;
+            int i = ablockposition.length;
+
+            for (int j = 0; j < i; ++j) {
+                BlockPosition blockposition1 = ablockposition1[j];
+
+                if (world.getBlockIfLoaded(blockposition1) == this.f) { // Paper
+                    return blockposition1;
+                }
+            }
+
+            return null;
+        }
+    }
+
+    protected boolean a(IWorldReader iworldreader, BlockPosition blockposition) {
+        Block block = world.getBlockIfLoaded(blockposition); // Paper
+        if (block == null) return false; // Paper
+
+        return block == this.f && iworldreader.getType(blockposition.up()).isAir() && iworldreader.getType(blockposition.up(2)).isAir();
+    }
+}