如何制作Spritekit动画背景？

Question

我想在游戏中制作动画空间背景，我尝试在spritekit“星星节点”上使用节点，但由于星星数量过多，游戏变得迟钝，是否有任何程序或方法可以制作高清动画背景？

Answer 1

You just need one node for the background ya know.

Basically, you create each frame of your animated background as images. You can put these images into an image atlas in the asset catalogue.

Now, you can add a single sprite node that covers the whole scene as the "background". You just set the texture of the sprite node to the first frame of your animation.

Then, in didMoveToView or some methods like that,

1. get your image atlas as an SKTextureAtlas object
2. get each texture in the atlas using textureNamed and put each of them into an [SKTexture]
3. Now you have the array, you can do something like this:

-

yourBackgroundSprite.runAction(SKAction.repeatForever(
    SKAction.animateWithtextures(theTexturesYouCreatedInStep2, timePerFrame: 30)
))

This link might also help you.