CODEWITHSUNDEEP
iosswiftsprite-kit
Daniel Mihaila
Daniel Mihaila

Reputation: 585

removing all nodes in existence

In my game, I have a method bringing down sprites. When the user loses (gameStarted == false) , I need a way to remove all these nodes I've brought into the scene. I've tried to remove these nodes two ways, by simply saying ball.removeFromParent(), and also using the removeBalls function at the bottom. Both methods stopped future balls from entering the scene, but didn't remove the ones already in existence. If anybody has a way of doing this, I'd really appreciate it.

override func didMoveToView(view: SKView) {
 var create = SKAction.runBlock({() in self.createTargets()})
var wait = SKAction.waitForDuration(2)
var createAndWaitForever = SKAction.repeatActionForever(SKAction.sequence([create, wait])
self.runAction(createAndWaitForever)


}
      func createTargets() {

          ball = SKSpriteNode(imageNamed:"blueBlue")

                let randomx = Int(arc4random_uniform(370) + 165)
                ball.position = CGPoint(x: randomx, y: 1400)
                addChild(ball)

                let moveDown = SKAction.moveBy(CGVector(dx: 0, dy: -1300), duration: 7)



            if gameStarted == false {

                ball.removeAllActions()

                ball.removeFromParent()

                removeBalls([ball])
            }

            if gameStarted && spawnReady {

                ball.runAction(moveDown)

                if ball.parent == nil {

                    addChild(ball)
                }     
            }  
            }

 func removeBalls(balls : [SKSpriteNode]) {

            for ball in balls {

            ball.removeFromParent()
            }
        }

Upvotes: 0

Views: 202

Answers (1)

SwiftArchitect
SwiftArchitect

Reputation: 48532

Where are you keeping track of each ball? Do you have a balls array?

Do this:

  1. Give a name to your ball nodes, say "ball"
  2. Enumerate

Swift

self.enumerateChildNodesWithName("ball", usingBlock: {
    (node: SKNode!, stop: UnsafeMutablePointer <ObjCBool>) -> Void in 
    node.removeFromParent()
})

Obj-C

[self enumerateChildNodesWithName:@"ball" usingBlock:^(SKNode *node, BOOL *stop) {
     [node removeFromParent];
 }];`

Upvotes: 1

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