Modified tick() order to prevent unhappy business if a sprite removes

itself in tick().


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1721 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/sprite/SpriteManager.java

@@ -1,5 +1,5 @@
 //
-// $Id: SpriteManager.java,v 1.35 2002/07/02 23:15:53 shaper Exp $
+// $Id: SpriteManager.java,v 1.36 2002/09/20 02:12:33 mdb Exp $
 
 package com.threerings.media.sprite;
 
@@ -242,8 +242,10 @@ public class SpriteManager
      */
     protected void tickSprites (long tickStamp)
     {
+        // we tick sprites in reverse order so as not to freak out if a
+        // sprite is removed as a result of our calling tick() on it
         int size = _sprites.size();
-	for (int ii = 0; ii < size; ii++) {
+	for (int ii = size-1; ii >= 0; ii++) {
             Sprite sprite = (Sprite)_sprites.get(ii);
 	    sprite.tick(tickStamp);
         }