diff --git a/src/main/java/net/minecraft/server/VillageSiege.java b/src/main/java/net/minecraft/server/VillageSiege.java
new file mode 100644
index 0000000000..3c203261e4
--- /dev/null
+++ b/src/main/java/net/minecraft/server/VillageSiege.java
@@ -0,0 +1,169 @@
+package net.minecraft.server;
+
+import java.util.Iterator;
+import java.util.List;
+
+public class VillageSiege {
+
+    private World world;
+    private boolean b = false;
+    private int c = -1;
+    private int d;
+    private int e;
+    private Village f;
+    private int g;
+    private int h;
+    private int i;
+
+    public VillageSiege(World world) {
+        this.world = world;
+    }
+
+    public void a() {
+        boolean flag = false;
+
+        if (flag) {
+            if (this.c == 2) {
+                this.d = 100;
+                return;
+            }
+        } else {
+            if (this.world.e()) {
+                this.c = 0;
+                return;
+            }
+
+            if (this.c == 2) {
+                return;
+            }
+
+            if (this.c == 0) {
+                float f = this.world.b(0.0F);
+
+                if ((double) f < 0.5D || (double) f > 0.501D) {
+                    return;
+                }
+
+                this.c = this.world.random.nextInt(10) == 0 ? 1 : 2;
+                this.b = false;
+                if (this.c == 2) {
+                    return;
+                }
+            }
+        }
+
+        if (!this.b) {
+            if (!this.b()) {
+                return;
+            }
+
+            this.b = true;
+        }
+
+        if (this.e > 0) {
+            --this.e;
+        } else {
+            this.e = 2;
+            if (this.d > 0) {
+                this.c();
+                --this.d;
+            } else {
+                this.c = 2;
+            }
+        }
+    }
+
+    private boolean b() {
+        List list = this.world.players;
+        Iterator iterator = list.iterator();
+
+        while (iterator.hasNext()) {
+            EntityHuman entityhuman = (EntityHuman) iterator.next();
+
+            this.f = this.world.villages.getClosestVillage((int) entityhuman.locX, (int) entityhuman.locY, (int) entityhuman.locZ, 1);
+            if (this.f != null && this.f.getDoorCount() >= 10 && this.f.d() >= 20 && this.f.getPopulationCount() >= 20) {
+                ChunkCoordinates chunkcoordinates = this.f.getCenter();
+                float f = (float) this.f.getSize();
+                boolean flag = false;
+                int i = 0;
+
+                while (true) {
+                    if (i < 10) {
+                        this.g = chunkcoordinates.x + (int) ((double) (MathHelper.cos(this.world.random.nextFloat() * 3.1415927F * 2.0F) * f) * 0.9D);
+                        this.h = chunkcoordinates.y;
+                        this.i = chunkcoordinates.z + (int) ((double) (MathHelper.sin(this.world.random.nextFloat() * 3.1415927F * 2.0F) * f) * 0.9D);
+                        flag = false;
+                        Iterator iterator1 = this.world.villages.getVillages().iterator();
+
+                        while (iterator1.hasNext()) {
+                            Village village = (Village) iterator1.next();
+
+                            if (village != this.f && village.a(this.g, this.h, this.i)) {
+                                flag = true;
+                                break;
+                            }
+                        }
+
+                        if (flag) {
+                            ++i;
+                            continue;
+                        }
+                    }
+
+                    if (flag) {
+                        return false;
+                    }
+
+                    Vec3D vec3d = this.a(this.g, this.h, this.i);
+
+                    if (vec3d != null) {
+                        this.e = 0;
+                        this.d = 20;
+                        return true;
+                    }
+                    break;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    private boolean c() {
+        Vec3D vec3d = this.a(this.g, this.h, this.i);
+
+        if (vec3d == null) {
+            return false;
+        } else {
+            EntityZombie entityzombie;
+
+            try {
+                entityzombie = new EntityZombie(this.world);
+            } catch (Exception exception) {
+                exception.printStackTrace();
+                return false;
+            }
+
+            entityzombie.setPositionRotation(vec3d.a, vec3d.b, vec3d.c, this.world.random.nextFloat() * 360.0F, 0.0F);
+            this.world.addEntity(entityzombie);
+            ChunkCoordinates chunkcoordinates = this.f.getCenter();
+
+            entityzombie.b(chunkcoordinates.x, chunkcoordinates.y, chunkcoordinates.z, this.f.getSize());
+            return true;
+        }
+    }
+
+    private Vec3D a(int i, int j, int k) {
+        for (int l = 0; l < 10; ++l) {
+            int i1 = i + this.world.random.nextInt(16) - 8;
+            int j1 = j + this.world.random.nextInt(6) - 3;
+            int k1 = k + this.world.random.nextInt(16) - 8;
+
+            if (this.f.a(i1, j1, k1) && SpawnerCreature.a(EnumCreatureType.MONSTER, this.world, i1, j1, k1)) {
+                return Vec3D.create((double) i1, (double) j1, (double) k1);
+            }
+        }
+
+        return null;
+    }
+}