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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12
｜
第
1
章
图
1
-
1
：基于继承的设计
1.3
创建基于组件的设计
问题
有时候我们需要使用基于组件的游戏框架设计，这种方式的灵活性更大一些。
解决方案
本节将带你了解如何构建自己的实体
-
组件系统，这点很重要。同时苹果的
GameplayKit
框架已经为此提供一系列现成的类。阅读并充分理解本节的内
容，是基于学习的目的。在真实的项目中，你可以使用下一节介绍的方法。
首先，定义组件类
Component
。这个类用于代表游戏对象（
GameObject
类）的各个
组成部分，
Component
类在开始的时候可以相对简单一些，它仅由一个方法和一个
属性构成：
class Component {
//
组件将装配到哪个游戏对象
var gameObject : GameObject?
游戏的设计
｜
13
func update(deltaTime : Float) {
//
更新组件状态
}
}
然后定义一个
GameObject
类。该类用于表示一个游戏对象：
class GameObject {
//
游戏对象所拥有的组件集合
var components : [Component] = []
//
添加一个组件到游戏对象
func add(component : Component)
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