how to develop a class method that cooled to when user fire air from his mouth in iphone screen
I have develop application related to candle.and in my application all things are working properly.

But when the candle is fire after i have to cooled it with mouth air fire on the screen and for that i can't get any example of code.

So, Please help me to do this. 
how to develop a class method that cooled to when user fire air from his mouth in iphone screen
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I have develop application related to candle.and in my application all things are working properly.

But when the candle is fire after i have to cooled it with mouth air fire on the screen and for that i can't get any example of code.

So, Please help me to do this. 