How do you tell if a node is on the screen spritekit swift

Question

I am trying to figure out how to determine if a node is visible on the screen or off the screen. Is this just a true/false property of the node? Thanks. (Using swift spritekit)

Answer 1

the best answer here will be:

if scene.frame.contains(myNode.position) {
//do stuff
}

"intersect" method is very heavy and involves too much computing, can produce lag if used on many instances

Answer 2

You can use the following to test if a node is in the scene:

if (!intersectsNode(sprite)) {
  println("node is not in the scene")
}

This assumes that self is an SKScene subclass, such as GameScene.

Answer 3

If you put a SKCameraNode in the scene, you can check if a node is inside the view of the camera using the contains method:

https://developer.apple.com/documentation/spritekit/skcameranode

You can also get all the nodes visible to the camera using the containedNodeSet instance method.