[英]How to gradually (animated) change background color in Spritekit?
SOLUTIONS I TRIED: 解决方案我试过:
Gradually change background color in Swift 在Swift中逐渐改变背景颜色
Swift : Background Color fading animation (SpriteKit) Swift:背景颜色褪色动画(SpriteKit)
WHAT I CURRENTLY HAVE (not working): 我目前有什么(不工作):
class GameScene: SKScene, SKPhysicsContactDelegate{
var background = SKSpriteNode()
var colorizeToRed = SKAction()
override func didMoveToView(view: SKView) {
background = SKSpriteNode(color: UIColor.blueColor(), size: self.frame.size)
background.position = CGPoint(x: self.frame.width / 2, y: self.frame.height / 2)
background.zPosition = 15
colorizeToRed = SKAction.colorizeWithColor(SKColor(red: 90, green: 0, blue: 0, alpha: 1), colorBlendFactor: 1.0, duration: 2.0)
background.runAction(colorizeToRed)
}
}
MY PROBLEM: 我的问题:
I don't see the background change color. 我没有看到背景改变颜色。 The only time I see it change color is if I set it directly with no animation using self.backgroundColor = UIColor().aColor
. 我唯一一次看到它改变颜色是我使用self.backgroundColor = UIColor().aColor
直接设置它没有动画。
EDIT: In fact, I dont'even see the blue background... Something is wrong with my SKSpriteNode, but what ? 编辑:事实上,我也不会看到蓝色背景......我的SKSpriteNode有问题,但是什么?
QUESTION: 题:
How to gradually (animated) change background color in Spritekit ? 如何逐步(动画)更改Spritekit中的背景颜色?
BEFORE YOU ASK: 在你问之前:
1) YES, I have already tried changing the zPosition in case the SKNode was hidden. 1)是的,我已经尝试在隐藏SKNode的情况下更改zPosition。
2) YES, I have checked the doc for SKAction.colorizeWithColor()
. 2)是的,我已经检查了SKAction.colorizeWithColor()
的文档。
3) YES, I am almost certain the solution to my problem is very simple (probably some mistake on my part), but what ? 3)是的,我几乎可以肯定我的问题的解决方案非常简单(可能是我的一些错误),但是什么?
4) YES, I am open to any suggestions telling me the error is somewhere else in my code, but only if you precise where that error might be. 4)是的,我愿意接受任何建议,告诉我错误是在我的代码中的其他地方,但只有在您确定错误的位置时才会这样。
5) NO, I will not post my ENTIRE code here, please ask for specific parts if necessary. 5)不,我不会在这里发布我的整个代码,如有必要,请询问具体部分。
Thank you in advance for any help you provide ^^ ! 提前感谢您提供的任何帮助^^!
By the looks of it, I think you just forgot to add the background to the scene. 从它的外观来看,我认为你只是忘了将背景添加到场景中。 Try this: 尝试这个:
addChild(background)
If that doesn't help, read on... 如果这没有帮助,请继续阅读......
If you're just fading in an SKSpriteNode then you can use SKAction.fadeIn
to fade the node in. Just set its alpha
to 0 to start and fade it in by doing something like this: 如果您只是淡入SKSpriteNode,那么您可以使用SKAction.fadeIn
淡化节点。只需将其alpha
设置为0即可启动并通过执行以下操作淡入它:
background.run(SKAction.fadeInWithDuration(2))
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