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swiftaxiscgrect

Random Spawning along X and Y axis

I am using CGRect to contain my spawning nodes within an location, which is below-

func CGRectMake(_ x: 90, _ y: 360, _ width: 260, _ height: 466) -> CGRect

My problem now is, I'm not sure how to spawn the nodes within the location with a random x and y axis? Should I use arc4random? Or is there another way of doing this?

Solution

  • arc4random would be ok.

    Use it like that :

    let rect = CGRectMake(x: 90, y: 360, width: 260, height: 466)
let x = rect.origin.x + CGFloat(arc4random()) % rect.size.width
let y = rect.origin.y + CGFloat(arc4random()) % rect.size.height
let randomPoint = CGPointMake(x, y)

    Also, you should note that if you have reverse Y axis, you should use - instead of + in y line.