January 2020
Intermediate to advanced
356 pages
6h 4m
Chinese
Content preview from Swift游戏开发经典实例
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260
｜
第
8
章
8.16
加载场景文件
问题
你想从文件中加载场景。
解决方案
点击
File
菜单，选择
New
→
File
，选择
SceneKit Scene File
，然后点
Next
。将新
文件保存到项目中。
创建好文件后，从项目导航窗口中打开它，这将打开
SceneKit
编辑器。在编辑器中，
你可以用可视化的方式来创建场景。
我们以一个简单场景为例。在
Object Library
窗口中，找到
Sphere
，将它拖到场景中。
这个场景需要从磁盘中加载。调用
SCNScene(named:)
构造函数，在构造参数中传
入场景文件名：
if let loadedScene = SCNScene(named: "SceneFile.scn") {
//
获得这个场景的根节点的拷贝
let newSceneContents = loadedScene.rootNode.clone()
//
添加到场景中
scene.rootNode.addChildNode(newSceneContents)
}
讨论
你可以用
SceneKit
编辑器来创建游戏场景，没有必要什么都用代码创建。对于创
建游戏关卡这样的场景来说，这种方法要快速和容易得多。
8.17
粒子系统
问题
你想用粒子系统来创建视觉特效。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.