Upstream Paper

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

@@ -0,0 +1,93 @@
+package net.minecraft.server;
+
+import javax.annotation.Nullable;
+
+public class PathfinderGoalPanic extends PathfinderGoal {
+
+    protected final EntityCreature a;
+    protected double b;
+    protected double c;
+    protected double d;
+    protected double e;
+
+    public PathfinderGoalPanic(EntityCreature entitycreature, double d0) {
+        this.a = entitycreature;
+        this.b = d0;
+        this.a(1);
+    }
+
+    public boolean a() {
+        if (this.a.getLastDamager() == null && !this.a.isBurning()) {
+            return false;
+        } else {
+            if (this.a.isBurning()) {
+                BlockPosition blockposition = this.a(this.a.world, this.a, 5, 4);
+
+                if (blockposition != null) {
+                    this.c = (double) blockposition.getX();
+                    this.d = (double) blockposition.getY();
+                    this.e = (double) blockposition.getZ();
+                    return true;
+                }
+            }
+
+            return this.g();
+        }
+    }
+
+    protected boolean g() {
+        Vec3D vec3d = RandomPositionGenerator.a(this.a, 5, 4);
+
+        if (vec3d == null) {
+            return false;
+        } else {
+            this.c = vec3d.x;
+            this.d = vec3d.y;
+            this.e = vec3d.z;
+            return true;
+        }
+    }
+
+    public void c() {
+        this.a.getNavigation().a(this.c, this.d, this.e, this.b);
+    }
+
+    public boolean b() {
+        // CraftBukkit start - introduce a temporary timeout hack until this is fixed properly
+        if ((this.a.ticksLived - this.a.hurtTimestamp) > 100) {
+            this.a.setLastDamager((EntityLiving) null);
+            return false;
+        }
+        // CraftBukkit end
+        return !this.a.getNavigation().p();
+    }
+
+    @Nullable
+    protected BlockPosition a(IBlockAccess iblockaccess, Entity entity, int i, int j) {
+        BlockPosition blockposition = new BlockPosition(entity);
+        int k = blockposition.getX();
+        int l = blockposition.getY();
+        int i1 = blockposition.getZ();
+        float f = (float) (i * i * j * 2);
+        BlockPosition blockposition1 = null;
+        BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
+
+        for (int j1 = k - i; j1 <= k + i; ++j1) {
+            for (int k1 = l - j; k1 <= l + j; ++k1) {
+                for (int l1 = i1 - i; l1 <= i1 + i; ++l1) {
+                    blockposition_mutableblockposition.c(j1, k1, l1);
+                    if (iblockaccess.getFluid(blockposition_mutableblockposition).a(TagsFluid.WATER)) {
+                        float f1 = (float) ((j1 - k) * (j1 - k) + (k1 - l) * (k1 - l) + (l1 - i1) * (l1 - i1));
+
+                        if (f1 < f) {
+                            f = f1;
+                            blockposition1 = new BlockPosition(blockposition_mutableblockposition);
+                        }
+                    }
+                }
+            }
+        }
+
+        return blockposition1;
+    }
+}