public void resume(){
if( ! _isPaused )
return;
this.animationInterval=_oldAnimationInterval;
// if( gettimeofday( &_lastUpdate, NULL) != 0 ) {
// CCLOG(@"cocos2d: Director: Error in gettimeofday");
// }
// [self willChangeValueForKey:@"isPaused"];
_isPaused = false;
// [self didChangeValueForKey:@"isPaused"];
_dt = 0;
}