New location for node

Question

I'm trying to unhide this node, so that it appears within the rect location but then somehow making that node hidden again so when it unhides it is in a different location within the rect. But I'm trying to add a random timer to it unhides at random intervals (but under 5 seconds)?

let x12 = rect4.origin.x + CGFloat(arc4random()) % rect4.size.width
let y12 = rect4.origin.y + CGFloat(arc4random()) % rect4.size.height
    let randomPoint12 = CGPointMake(x12, y12)
    self.yellowcircle3.position = randomPoint12
    self.addChild(yellowcircle3)


    yellowcircle3.hidden = true

score 0 · Answer 1 · answered Aug 21 '15 at 16:24

It sounds like you want to make an NSTimer and use arc4random to get a time interval.

The first thing you need to do is declare a NSTimer and a random number by adding the code:

var myTimer = NSTimer()
var secondsPassed : Int = 0
var randomTimeInterval = arc4Random % 4 + 1

(The 4 + 1 will return a value between 1 and 5)

Next, you need a function to call upon when you want to move your node.

 func moveNode(){
            myTimer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: Selector("timerRan:"), userInfo: nil, repeats: true)

    }

Once you call moveNode(), your timer will start to run. But now we need the timer's function, or it's Selector so it can run properly.

func timerRan(sender: NSTimer!){
     secondsPassed++
     if secondsPassed == randomTimeInterval (
        //unhide your rect and reset the timer
     )
}

Hope this helps :)

I suggest you use an `SKAction` instead of an `NSTimer`. Here's why http://stackoverflow.com/questions/23978209/spritekit-creating-a-timer — 0x141E, Aug 21 '15 at 17:13
@MattB The formatting would be the same with multiple nodes. You would just need multiple timers for each node, such as myTimer1 and myTimer2, with separate functions respectively — Nick Pacini, Aug 21 '15 at 22:35

New location for node

1 Answers1