Fix packet stuff

src/de/steamwar/lobby/display/NPC.java

@@ -161,6 +161,9 @@ public class NPC {
     }
 
     public void setLocation(Location location) {
+        if (isSimilarLocation(location)) {
+            return;
+        }
         this.location = location;
         byte yaw = (byte)(int)(location.getYaw() * 256.0 / 360.0);
         headRotationYaw.set(headRotation, yaw);
@@ -175,6 +178,25 @@ public class NPC {
         display.setLocation(location);
     }
 
+    private boolean isSimilarLocation(Location location) {
+        if (Location.normalizeYaw(this.location.getYaw()) != Location.normalizeYaw(location.getYaw())) {
+            return false;
+        }
+        if (Location.normalizePitch(this.location.getPitch()) != Location.normalizePitch(location.getPitch())) {
+            return false;
+        }
+        if (Math.abs(this.location.getX() - location.getX()) > 0.1) {
+            return false;
+        }
+        if (Math.abs(this.location.getY() - location.getY()) > 0.1) {
+            return false;
+        }
+        if (Math.abs(this.location.getZ() - location.getZ()) > 0.1) {
+            return false;
+        }
+        return true;
+    }
+
     public Location getLocation() {
         return location;
     }