- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
if(touchDelegate_)
{
// before passing the event, I want to scale touch position by 2, how can i do it?
// that is, if touch position is (5, 5), I want touchDelegate_ see it as (10, 10)
[touchDelegate_ touchesBegan:touches withEvent:event];
}
}