快速地，是否可以通过直接从数组中复制来创建SKSpriteNode？ [英] In swift, is it possible to create an SKSpriteNode by directly copying it from an array?

问题描述

目前，我在Swift中的一个项目遇到了一些麻烦。我想知道是否可以创建一个像这样的全新sprite节点：

I'm having a little bit of trouble with one of my projects in Swift at the moment. I want to know if you can create a brand new sprite node like this:

var spriteNode : SKSpriteNode = nodes(3)

其中节点是SKSpriteNodes的数组，并在索引号3处有一个对象。以前，我曾在Java，而且我知道，如果要执行类似的操作，它只会传递一个sprite节点变量的引用，而不是创建一个新的sprite节点，但是我不确定这是否会很快发生。

where nodes is an array of SKSpriteNodes and has an object at index number 3. Previously, I have worked in Java, and I know that if you were to do something like this, it would simply pass a reference the sprite node variable rather than creating a whole new sprite node, but I am not sure if this is what happens in swift.

如果您不能通过这种方式创建新的Sprite节点，那么最好的制作方法是（在Java中，您只需创建一个新的Sprite节点，然后逐字复制所有

If you cannot create a new sprite node this way, what is the best way to make it (In Java you would simply create a new sprite node and literally copy all of its values)?

推荐答案

您可以使用以下代码克隆 SKSpriteNode

You can clone an SKSpriteNode using this code

let sprite0 = SKSpriteNode()
let sprite1 = sprite0.copy() as! SKSpriteNode

如果您有一个精灵数组

let sprites: [SKSpriteNode] = [SKSpriteNode(), SKSpriteNode(), SKSpriteNode()]

您可以使用方括号

let aSprite = sprites[0]

无论如何，在使用其他环境的模式/技术之前，我真的建议您阅读 Sprite Kit编程指南。如果我们按预期的方式使用工具，事情通常会变得更容易。

Anyway before using patterns/techniques of other environments I really suggest you to read the Sprite Kit Programming Guide. Often things get easier if we use a tool the way it is intended to be.

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