What is the best way to make a bouncing ball animation with infinite loop on iPhone?

Question

I am developing an iPhone game in which birds bounce.

I have set up the images for animating the wings of the flying bird like this:

[imgBird[i] set         


        

Answer 1

From your question it seems you are using more than one timer. Use just one to animate all your objects. Somewhere, when your app starts, have this:

[NSTimer scheduledTimerWithTimeInterval:0.03 target:self selector:@selector(mainLoop:) userInfo:nil repeats:YES];

Then, in main loop, something like this:

- (void)mainLoop:(NSTimer *)timer
{
    // compute new position for imgBirds
    for (int i=0; i

Also, you should compute somex and somey as a function of your timer interval. In that way, if you change it, your animation will still look the same.