iPhone - finger keeps touching screen

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Hi,

I would like to call a subroutine with various yield commands, as long as a finger is touching the screen. And I have two problems with that.

First: How do I recognize a sigle individual finger to stay on the screen? I usually work with TouchPhase, but there are only a command for a stationary touch, so if the finger is moved on the screen, the condition isnt true anymore.

And Second: How can I make a function, which will be called as long as variable or condition is true? So in the touch example: The finger is touching the screen -> a function is called so long, until the finger is released from the screen.

I really appreciate any help.

1 Answer

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use a coroutine... on touchbegin start the coroutine.

add a while loop in your coroutine that checks to see if the phase = touchended which breaks the while loop and exits the coroutine. at the end of your while loop put a yield statement that will let control go until the next frame at which point the next iteration of the while loop will happen.