[英]How to use perform method on SKAction in Swift
我尝试使用perform(_:onTarget :)作为SKAction序列的一部分来调用函数。
我试过了:
let action1 = SKAction.fadeIn(withDuration: TimeInterval(0.2))
let action2 = SKAction.wait(forDuration: TimeInterval(0.4))
let action3 = SKAction.fadeOut(withDuration: TimeInterval(0.1))
let action4 = SKAction.perform(self.blinkLightByOrder, onTarget: UFOSprite._ufoBase)
let action5 = SKAction.sequence([action1, action2, action3, action4])
currentLight.run(action5)
当我像这样使用SKAction.run(block:()-> Void)时:
let action4 = SKAction.run(self.blinkLightByOrder)
它有效,但是我需要发送对象,因为此方法要求SKSpriteNode:
func blinkLightByOrder(onSprite: SKSpriteNode)
但我不断收到错误消息,无法理解如何执行此执行动作。 谢谢
如果我正确理解了您的问题,那么我认为您只是在尝试找到这样的函数:
blinkLightByOrder(onSprite: currentLight)
func blinkLightByOrder(onSprite: SKSpriteNode){
onSprite.run(action4)
}
它对我有用,只是一个简单的调用函数
Orkhan Alikhanov在评论中发布的答案
SKAction.run { self.blinkLightByOrder(onSprite: mySprite) }
很棒!
现在,我更改了这样的方法:
currentLight.run(
SKAction.run {
SKAction.sequence([
SKAction.fadeIn(withDuration: TimeInterval(0.2)),
SKAction.wait(forDuration: TimeInterval(0.4)),
SKAction.fadeOut(withDuration: TimeInterval(0.1)),
SKAction.run{ self.blinkLightByOrder() }]
)
})
并按预期工作! 非常感谢 :)
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