在cocos2d + box2d中设置游戏对象 [英] Game Objects setup in cocos2d + box2d

问题描述

我遇到一个设计问题，这可能是由于我尚未完全了解cocos2d和box2d。

I am having a design issue, this may be due to the fact that i don't fully understand cocos2d and box2d yet.

我想创建一个具有CCSprite（图像数据）和b2Body（物理）的游戏对象，我是否正确地制作了一个包含两者的封装对象？如果我这样做，这将使我能够更改CCSprite

I want to create game objects that have a CCSprite(image data) and a b2Body(physics), Would i be right to make an encapsulating object that contains both? if i did this this would enable me to make changes to the CCSprite

OR

在示例代码中，b2Body具有一个userData变量，该精灵被设置为该变量。然后，使用这种方法，我只需要一个指向物理对象的指针，即可处理CCSprite。

as i have seen in the example code the b2Body has a userData variable which the sprite is set as. Then with this method i would only need to have a single pointer to the physics objects which would take care of the CCSprite.

Thx预先。

推荐答案

我的首选方法是将两者封装在Actor对象中。我的Actor对象还负责根据b2Body数据更新CCSprite位置/旋转。然后，我将该Actor对象用作b2Body中的userData。迭代访问侦听器中的正文时，以Actor作为userData很有帮助。

My preferred way of doing it is to encapsulate both in an Actor object. My Actor object is also responsible for updating the CCSprite position/rotation based on the b2Body data. Then I use that Actor object as the userData in the b2Body. Having the Actor as the userData is helpful when iterating over bodies in contact listeners.

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