简单方法返回 Objective C
我目前是 Objective C 的新手，在制作游戏时遇到了一个问题，我有一个名为 BattleEngine 的定制对象，它是 cocos2d 中我的 helloWorld 场景中的一个实例变量。该对象有一个名为 plyController 的对象作为实例变量，它是一个 PlayerController 对象。我希望 BattleEngine 有一个返回 plyController 对象的 getter 方法，但此代码不起作用：
-(PlayerController*)getPlayerController
{
return plyController;
}
I am currently new to objective c and have came across a problem while making a game I have a custom made object called battleEngine which is an instance variable in my helloWorld scene in cocos2d. That object has an object as an instance variable called plyController which is a PlayerController object. I want battleEngine to have a getter method that returns the plyController object and this code doesn't work:
-(PlayerController*)getPlayerController
{
return plyController;
}
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您是否有任何原因不将玩家控制器对象声明为属性？在这种情况下，您可以只使用合成的 getter 来获取玩家控制器。
查看文档 属性。
另外，我担心我必须这么说，否则他们会夺走我的 Cocoa 程序员徽章，
getPlayerController不是一个好的方法名称。其中包含get的方法通常用于返回通过引用传入的参数中的值。 Cocoa 编码指南告诉我们这一点，以及更多。Is there any reason you haven't just declared your player controller object as a property? You could just use the synthesised getter in that case to get the player controller.
Have a look at the documentation on properties.
Also, and I'm afraid I have to say this or they will take my Cocoa-programmer badge away from me,
getPlayerControlleris not a good method name. Methods withgetin them are conventionally used to return values in the parameters passed in by reference. The Cocoa Coding Guidelines tells us this, and much more.