Is it possible to deactivate collisions in physics bodies in spriteKit?

Question

I\'m looking at doing the best way to collect items with my hero in my spriteKit game for iOs, and after to try a few ways to do it, my conclusion is the best way would be t

Answer 1

contactTestBitMask is used to trigger didBeginContact. collisionBitMask is used to activate physics on nodes.

// add a physics body
ship.physicsBody = [SKPhysicsBody bodyWithCircleOfRadius:ship.size.width/2];

// set the category for ship
ship.physicsBody.categoryBitMask = shipCategory;

// detect collisions with asteroids and edges
ship.physicsBody.contactTestBitMask = asteroidCategory | edgeCategory;

// physically collide with asteroids
ship.physicsBody.collisionBitMask = asteroidCategory;