我试图在游戏开始时阻止我的节点掉落一两秒钟。所以我的问题是,当我按下启动时,节点已经在屏幕的一半。我也尝试改变节点开始的高度,但这似乎是一个昂贵的解决方案,因为我要小心不要让我的FPS太低。在我的代码中,我试图在didMoveToView中执行此操作,并且我使用waitForDuration但它不起作用。
Example Image of Nodes Falling Down
任何SpriteKit大师都知道我应该做什么?我正在使用Swift。 这是我的代码:
override func didMoveToView(view: SKView) {
let wait = SKAction.waitForDuration(2.5)
let run = SKAction.runBlock {
self.spawnNumbers()
}
numContainer.runAction(SKAction.sequence([wait, run]))
}
func spawnNumbers() {
let minValue = self.size.width / 8
let maxValue = self.size.width - 36
let spawnPoint = CGFloat(arc4random_uniform(UInt32(maxValue - minValue)))
let action = SKAction.moveToY(-300, duration: 2)
numContainer = SKSpriteNode(imageNamed: "Circle")
numContainer.name = "Circle"
numContainer.size = CGSize(width: 72, height: 72)
numContainer.anchorPoint = CGPointMake(0, 0)
numContainer.position = CGPoint(x: spawnPoint, y: self.size.height)
numContainer.runAction(SKAction.repeatActionForever(action))
numContainer.zPosition = 2
let numberLabel = SKLabelNode(fontNamed: "AvenirNext-Bold")
numberLabel.text = "\(numToTouch)"
numberLabel.name = "Label"
numberLabel.zPosition = -1
numberLabel.position = CGPointMake(CGRectGetMidX(numContainer.centerRect) + 36, CGRectGetMidY(numContainer.centerRect) + 36)
numberLabel.horizontalAlignmentMode = .Center
numberLabel.verticalAlignmentMode = .Center
numberLabel.fontColor = UIColor.whiteColor()
numberLabel.fontSize = 28
addChild(numContainer)
numContainer.addChild(numberLabel)
numContainerArray.append(numContainer)
numToTouch += 1
}
答案 0 :(得分:0)
我认为你必须将2.5秒施放到NSTimeInterval:
let wait = SKAction.waitForDuration(NSTimeInterval(2.5))
您还可以尝试将操作放在场景的init
函数中:
override init (size: CGSize) {
super.init(size: size)
//your code from before
}
此外,不确定它是否重要,但这是我通常做的,它的工作原理,
let wait = SKAction.waitForDuration(NSTimeInterval(2.5))
let action = SKAction.runBlock({() in self.spawnNumbers()})
let actionThenWait = SKAction.sequence([wait, action])
self.runAction(actionThenWait)