CODEWITHSUNDEEP
swiftpositionnodesenumerate
Jarron
Jarron

Reputation: 1049

EnumerateChildNodesWithName, Can't seem to Remove nodes

I'm trying to remove some nodes from a parent node once they reach a certain x position. The problem I have is that the parent node is changing x position, but the children are not changing x position inside the parent (but are obviously moving with the parent), so when I put in if node.position.x < 300 . . . (remove node), nothing happens. I tried the below code, but this only work one time and then doesn't remove nodes again, which I'm not 100% sure why it stops working.

func cleanUp() {
    let positionX = nodeBase.position.x
    nodeBase.enumerateChildNodesWithName("segment", usingBlock: {
        node, stop in
        if node.position.x - positionX < 300 {
            node.removeFromParent()
        }
    })
}

Can anybody see where I am going wrong with my code, or can you point me in the right direction?

Upvotes: 0

Views: 148

Answers (1)

ABakerSmith
ABakerSmith

Reputation: 22939

Try the following:

nodeBase.enumerateChildNodesWithName("segment") { node, _ in
    if !self.intersectsNode(node) {
        node.removeFromParent()
    }
 }

intersectsNode returns true whilst the node is inside the bounds of SKScene. Therefore, when intersectsNode returns false you know the node is offscreen and you can remove the node.

Upvotes: 1

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