From 2be5181b0c721baf520a372350693377c261dd37 Mon Sep 17 00:00:00 2001
From: Dinnerbone <dinnerbone@dinnerbone.com>
Date: Sat, 5 Feb 2011 18:15:04 +0000
Subject: Added internal MC support for multiple worlds

---
 .../java/net/minecraft/server/EntityTracker.java   | 152 +++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 src/main/java/net/minecraft/server/EntityTracker.java

(limited to 'src/main/java/net/minecraft/server/EntityTracker.java')

diff --git a/src/main/java/net/minecraft/server/EntityTracker.java b/src/main/java/net/minecraft/server/EntityTracker.java
new file mode 100644
index 00000000..8cfbf30c
--- /dev/null
+++ b/src/main/java/net/minecraft/server/EntityTracker.java
@@ -0,0 +1,152 @@
+package net.minecraft.server;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+public class EntityTracker {
+
+    private Set a = new HashSet();
+    private EntityList b = new EntityList();
+    private MinecraftServer c;
+    private int d;
+
+    public EntityTracker(MinecraftServer minecraftserver) {
+        this.c = minecraftserver;
+        this.d = minecraftserver.f.a();
+    }
+
+    public void a(Entity entity) {
+        if (entity instanceof EntityPlayer) {
+            this.a(entity, 512, 2);
+            EntityPlayer entityplayer = (EntityPlayer) entity;
+            Iterator iterator = this.a.iterator();
+
+            while (iterator.hasNext()) {
+                EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) iterator.next();
+
+                if (entitytrackerentry.a != entityplayer) {
+                    entitytrackerentry.b(entityplayer);
+                }
+            }
+        } else if (entity instanceof EntityFish) {
+            this.a(entity, 64, 5, true);
+        } else if (entity instanceof EntityArrow) {
+            this.a(entity, 64, 5, true);
+        } else if (entity instanceof EntitySnowball) {
+            this.a(entity, 64, 5, true);
+        } else if (entity instanceof EntityEgg) {
+            this.a(entity, 64, 5, true);
+        } else if (entity instanceof EntityItem) {
+            this.a(entity, 64, 20, true);
+        } else if (entity instanceof EntityMinecart) {
+            this.a(entity, 160, 5, true);
+        } else if (entity instanceof EntityBoat) {
+            this.a(entity, 160, 5, true);
+        } else if (entity instanceof EntitySquid) {
+            this.a(entity, 160, 3, true);
+        } else if (entity instanceof IAnimal) {
+            this.a(entity, 160, 3);
+        } else if (entity instanceof EntityTNTPrimed) {
+            this.a(entity, 160, 10, true);
+        } else if (entity instanceof EntityFallingSand) {
+            this.a(entity, 160, 20, true);
+        } else if (entity instanceof EntityPainting) {
+            this.a(entity, 160, Integer.MAX_VALUE, false);
+        }
+    }
+
+    public void a(Entity entity, int i, int j) {
+        this.a(entity, i, j, false);
+    }
+
+    public void a(Entity entity, int i, int j, boolean flag) {
+        if (i > this.d) {
+            i = this.d;
+        }
+
+        if (this.b.b(entity.id)) {
+            throw new IllegalStateException("Entity is already tracked!");
+        } else {
+            EntityTrackerEntry entitytrackerentry = new EntityTrackerEntry(entity, i, j, flag);
+
+            this.a.add(entitytrackerentry);
+            this.b.a(entity.id, entitytrackerentry);
+            entitytrackerentry.b(entity.world.d); // Craftbukkit
+        }
+    }
+
+    public void b(Entity entity) {
+        if (entity instanceof EntityPlayer) {
+            EntityPlayer entityplayer = (EntityPlayer) entity;
+            Iterator iterator = this.a.iterator();
+
+            while (iterator.hasNext()) {
+                EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) iterator.next();
+
+                entitytrackerentry.a(entityplayer);
+            }
+        }
+
+        EntityTrackerEntry entitytrackerentry1 = (EntityTrackerEntry) this.b.d(entity.id);
+
+        if (entitytrackerentry1 != null) {
+            this.a.remove(entitytrackerentry1);
+            entitytrackerentry1.a();
+        }
+    }
+
+    public void a() {
+        ArrayList arraylist = new ArrayList();
+        Iterator iterator = this.a.iterator();
+
+        while (iterator.hasNext()) {
+            EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) iterator.next();
+
+            entitytrackerentry.a(entitytrackerentry.a.world.d); // Craftbukkit
+            if (entitytrackerentry.m && entitytrackerentry.a instanceof EntityPlayer) {
+                arraylist.add((EntityPlayer) entitytrackerentry.a);
+            }
+        }
+
+        for (int i = 0; i < arraylist.size(); ++i) {
+            EntityPlayer entityplayer = (EntityPlayer) arraylist.get(i);
+            Iterator iterator1 = this.a.iterator();
+
+            while (iterator1.hasNext()) {
+                EntityTrackerEntry entitytrackerentry1 = (EntityTrackerEntry) iterator1.next();
+
+                if (entitytrackerentry1.a != entityplayer) {
+                    entitytrackerentry1.b(entityplayer);
+                }
+            }
+        }
+    }
+
+    public void a(Entity entity, Packet packet) {
+        EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) this.b.a(entity.id);
+
+        if (entitytrackerentry != null) {
+            entitytrackerentry.a(packet);
+        }
+    }
+
+    public void b(Entity entity, Packet packet) {
+        EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) this.b.a(entity.id);
+
+        if (entitytrackerentry != null) {
+            entitytrackerentry.b(packet);
+        }
+    }
+
+    public void a(EntityPlayer entityplayer) {
+        Iterator iterator = this.a.iterator();
+
+        while (iterator.hasNext()) {
+            EntityTrackerEntry entitytrackerentry = (EntityTrackerEntry) iterator.next();
+
+            entitytrackerentry.c(entityplayer);
+        }
+    }
+}
-- 
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