我正在为游戏创作一个介绍独白。我想知道如何在包含文本更改的序列中使用SKActions。
我目前有
monologue.runAction(SKAction.fadeOutWithDuriation(1.5))
monologue.text = "text2"
//*wait for tap* (coded in)
monologue.runAction(SKAction.fadeInWithDuriation(1.5))
答案 0 :(得分:0)
extension SKNode
{
func runAction( action: SKAction!, withKey: String!, optionalCompletion: dispatch_block_t? )
{
if let completion = optionalCompletion
{
let completionAction = SKAction.runBlock( completion )
let compositeAction = SKAction.sequence([ action, completionAction ])
runAction( compositeAction, withKey: withKey )
}
else
{
runAction( action, withKey: withKey )
}
}
}
代码:
var isMonologueReady : Bool = false //global var
monologue.name = "monologue"
self.isMonologueReady = false
let fadeOut = SKAction.fadeOutWithDuration(1.5)
let wait = SKAction.waitForDuration(1.5)
let changeText = SKAction.runBlock({monologue.text = "text2"})
let changeMytext = SKAction.group([wait,changeText])
let actionSequence = SKAction.sequence([fadeOut,changeMytext])
monologue.runAction(actionSequence,withKey:"monologueSequence",optionalCompletion: {
self.isMonologueReady = true
})
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
let touch = touches.first
let positionInScene = touch!.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
print (touchedNode.name)
if let name = touchedNode.name
{
if name == "monologue" && self.isMonologueReady
{
let fadeIn = SKAction.fadeInWithDuration(1.5)
monologue.runAction(fadeIn,withKey:"monologueFadeIn")
}
}
}
<强>解释强>:
创建所有基本操作后,您可以选择必须按顺序一起运行的操作。正如您在此代码中看到的那样,wait
和changeText
在群组中启动(并行模式,一起..),之后您可以看到基于fadeOut的SKAction
序列和{ {1}}名为SKAction.group
。最后,点击后,如果changeMytext
被终止(布尔值为true),那么它可以运行actionSequence
。