我有一个永久重复的SKAction,它会在波浪中释放随机数的对象,但是似乎找不到一种方法可以使SKAction.repeatAction每次在SKAction.repeatActionForver中重复进行计数时都随机化。有人知道我的问题的解决方案吗?
让objectSet = SKAction.repeatAction(SKAction.sequence([addObject,objectDelay]),count:random value))
let setDelay = SKAction.waitForDuration(2.0, withRange: 1.0)
let objectDelay = SKAction.waitForDuration(0.6, withRange: 0.4)
let objectSet = SKAction.repeatAction(SKAction.sequence([addObject, objectDelay]), count: *Trying to get a random value*))
objectLayerNode.runAction(SKAction.repeatActionForever(SKAction.sequence([objectSet, setDelay])))
谢谢
您可以使用let random = Int(arc4random_uniform(UPPER_BOUND))
。
然后
let objectSet = SKAction.repeatAction(SKAction.sequence([addObject, objectDelay]), count: random))
您也可以使用上限和下限进行范围调整。
let random = LOWER_BOUND + arc4random_uniform(UPPER_BOUND - LOWER_BOUND + 1)
编辑
您可以使用递归。参考
let setDelay = SKAction.waitForDuration(2.0, withRange: 1.0)
let objectDelay = SKAction.waitForDuration(0.6, withRange: 0.4)
func repeat() {
let random = LOWER_BOUND + arc4random_uniform(UPPER_BOUND - LOWER_BOUND + 1)
let objectSet = SKAction.repeatAction(SKAction.sequence([addObject, objectDelay]), count: random))
let sequence = SKAction.sequence([
objectSet, objectDelay,SKAction.runBlock({
[unowned self] in self.repeat()
})
])
objectLayerNode.runAction(sequence)
}
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