swift - NSTimer.scheduledTimerWithTimeInterval() with variable delay -

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i have function need called every x second. @ begining x = 5 everytime calls function x need decrement number. know how if x constant:

override func didmovetoview(view: skview) {     nstimer.scheduledtimerwithtimeinterval(5, target: self, selector: selector("function"), userinfo: nil, repeats: true) }  func function(){     println("test") }

how decrement delay between each function calls each time gets called?

i change code this:

var timeduration: nstimeinterval = 5  override func didmovetoview(view: skview) {    nstimer.scheduledtimerwithtimeinterval(timeduration, target: self, selector: selector("function"), userinfo: nil, repeats: false) }  func function(){     println("test")     timeduration -= 1     if timeduration > 0{         nstimer.scheduledtimerwithtimeinterval(timeduration, target: self, selector: selector("function"), userinfo: nil, repeats: false)     } }

this should work, have not tested it.


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