Timers in Obj-C

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hi guys

started programming in obj-c.

wanted make tetris style game test ability before develop unique game sale in app store.

if generated 2d block @ top of screen core graphics able set timer allow user move block left , right every x amount of seconds move block down.

worried attempt implement result in program pausing x seconds , ignoring user input , accept input after timer had run down.

want timer trigger move down yet still enable left , right movement.

thanks,

- vodouman :)
 



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