Add files from mc-dev for diff visibility.

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

@@ -0,0 +1,42 @@
+package net.minecraft.server;
+
+import java.util.Iterator;
+import java.util.List;
+
+public class PathfinderGoalHurtByTarget extends PathfinderGoalTarget {
+
+    boolean a;
+    private int b;
+
+    public PathfinderGoalHurtByTarget(EntityCreature entitycreature, boolean flag) {
+        super(entitycreature, false);
+        this.a = flag;
+        this.a(1);
+    }
+
+    public boolean a() {
+        int i = this.c.aJ();
+
+        return i != this.b && this.a(this.c.getLastDamager(), false);
+    }
+
+    public void c() {
+        this.c.setGoalTarget(this.c.getLastDamager());
+        this.b = this.c.aJ();
+        if (this.a) {
+            double d0 = this.f();
+            List list = this.c.world.a(this.c.getClass(), AxisAlignedBB.a(this.c.locX, this.c.locY, this.c.locZ, this.c.locX + 1.0D, this.c.locY + 1.0D, this.c.locZ + 1.0D).grow(d0, 10.0D, d0));
+            Iterator iterator = list.iterator();
+
+            while (iterator.hasNext()) {
+                EntityCreature entitycreature = (EntityCreature) iterator.next();
+
+                if (this.c != entitycreature && entitycreature.getGoalTarget() == null && !entitycreature.c(this.c.getLastDamager())) {
+                    entitycreature.setGoalTarget(this.c.getLastDamager());
+                }
+            }
+        }
+
+        super.c();
+    }
+}