如何在SpriteKit中为PhysicalWorld设置contactDelegate? | iteKit中为PhysicalWorld设置contactDe

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问题描述

将contactDelegate分配给self(GameScene)时遇到了一个问题.

I have just encountered a problem when assigning contactDelegate to self (GameScene).

override func didMoveToView(view: SKView)
{
    self.physicsWorld.contactDelegate = self
    /* ... */
}

不幸的是，我得到一个错误:

Unfortunately, I get an error:

在以前版本的Xcode(可能是Swift 2.0中的新功能)中不会发生这种情况，因此即使在Apple Developer上的SpriteKit文档中，它们也具有与我相同的代码.

This wouldn't happen in previous versions of Xcode (probably something new in Swift 2.0), so even in SpriteKit documentation on Apple Developer they have the same code I do.

我该如何解决?我已经尝试过强制投射

How do I get around this? I have already tried to force casting

self.physicsWorld.contactDelegate = (self as! SKPhysicsContactDelegate)

但是我遇到了运行时错误(无法执行广播).

but I got a runtime error (casting couldn't be performed).

有人知道如何将联系人委派给我的GameScene吗?

Anyone knows how to delegate contacts to my GameScene?

推荐答案

我知道在我的项目中(我假设是swift 1)，您必须像这样将游戏场景定义为SKPhysicsContact Delegate.

I know in my project (swift 1 i assume) you have to define the game scene as a SKPhysicsContact Delegate like so.

class GameScene: SKScene, SKPhysicsContactDelegate {

}

然后将其设置为我刚刚做的代表.

And to set it as the delegate I just do.

self.physicsWorld.contactDelegate = self

不需要作为"运算符.

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