SpriteKit physics in Swift - Ball slides against wall instead of reflecting

Question

I have been creating my own very simple test game based on Breakout while learning SpriteKit (using iOS Games by Tutorials by Ray Wenderlich et al.) to see if I can apply co

Answer 1

Add code below:

let border = SKPhysicsBody(edgeLoopFrom: self.frame)
border.friction = 0
border.restitution = 1
self.physicsBody = border

which will make your ball bounce back when it collides with wall. Restitution is the bounciness of the physics body so setting it to 1 will bounce ball back.