From 13fb0e07ce5c8220c83757aa4db7e9c2d70d4206 Mon Sep 17 00:00:00 2001
From: VictorD <victor.danell@gmail.com>
Date: Tue, 1 Mar 2011 20:54:53 +0100
Subject: [PATCH] Ignore entity movement packets if distance == 0

---
 src/main/java/net/minecraft/server/EntityTrackerEntry.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
index 317847248d..e38f5b010a 100644
--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
@@ -70,6 +70,11 @@ public class EntityTrackerEntry {
             Object object = null;
             boolean flag = Math.abs(i) >= 8 || Math.abs(j) >= 8 || Math.abs(k) >= 8;
             boolean flag1 = Math.abs(l - this.g) >= 8 || Math.abs(i1 - this.h) >= 8;
+            
+            //CraftBukkit - Create relative movement packet only if distance is greater than zero.
+            int distanceSquared = j1*j1+k1*k1+l1*l1; 
+            flag = (distanceSquared > 0) && flag;
+            //CraftBukkit stop
 
             if (j1 >= -128 && j1 < 128 && k1 >= -128 && k1 < 128 && l1 >= -128 && l1 < 128) {
                 if (flag && flag1) {