Fix an index out of bounds exception when moving an

audio node that hasn't been played yet.


git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7495 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/audio/AudioNode.java

@@ -616,7 +616,7 @@ public class AudioNode extends Node {
         
         super.updateGeometricState();
 
-        if (updatePos && renderer != null)
+        if (updatePos && channel >= 0)
             renderer.updateSourceParam(this, AudioParam.Position);
     }