SpriteKit prevent sprite from leaving screen without bouncing

Question

I am using the accelerometer to move a sprite around the screen, and I am using spriteKit collisions to keep the sprite in the bounds of the screen. Is there a way I can prevent the sprite from bouncing off the sides of the screen? (the sprite should just stop on the edge of the screen)

Have you set the screen bounds in your class? So the player can't leave the screen? — Adrian P

tonethar tonethar · Accepted Answer · 2016-03-09T06:38:53

Try SKConstraint The code would look something like this, and would constrain sprite to the scene. This code goes in your scene file:

let xRange = SKRange(lowerLimit:0,upperLimit:size.width)
let yRange = SKRange(lowerLimit:0,upperLimit:size.height)
//sprite.constraints = [SKConstraint.positionX(xRange,Y:yRange)] // iOS 9
sprite.constraints = [SKConstraint.positionX(xRange,y:yRange)]  // iOS 10

SpriteKit prevent sprite from leaving screen without bouncing

2 Answers