iPhone - Track three touches

Question

Suppose you have three points of contact on the iPhone screen and one of those touches moves...

The touchesMoved method will be invoked and the [[event touchesForView:self] count] will be equal to '3' because there are three touches for the event, but how can you distinguish between the touches? For example - find out whether it was the first, second, or third touch which moved?

Thanks.

Answer 1

the touches argument of touchesMoved:withEvent: will contain the actual touches that moved. In touchesBegan:withEvent:, you can store those away; the actual touch objects will remain the same (ie, same objects, although their values will change) throughout the entire touch sequence.