我如何添加菜单到已经制作的游戏在cocos2d和box2d为iphone？ [英] how do I add a menu to an already-made game in cocos2d and box2d for iphone?

问题描述

我有一个现有的游戏，我想有一个标题屏幕，一个按钮播放加载游戏的应用程序。
EDIT：界面是在Level Helper中创建的

I have an existing game that I want to have a title screen with a button "play" to the app that loads the game. The interface was made in Level Helper

推荐答案

这里是如何实现一个菜单，过渡。在 HelloWorldLayer.m 文件中，添加：

Here's how you can implement a menu that changes scenes with a transition. In your HelloWorldLayer.m file, add this:

-(id) init
{
if( (self=[super init])) {

    CCMenuItemImage *menuImage = [CCMenuItemImage itemFromNormalImage:@"yourimage.png" selectedImage:@"Icon.png" target:self selector:@selector(changeScene:)];

    CCMenu *menu;

    menu = [CCMenu menuWithItems:menuImage, nil];

    [self addChild:menu];
}
return self;
}

-(void) changeScene:(id)sender
{
    [[CCDirector sharedDirector] replaceScene:[CCTransitionZoomFlipX transitionWithDuration:1 scene:[Scene1 node]]];
}

这将创建一个分配给选择器的菜单项图像，将其添加到菜单，然后点击，过渡到一个新的场景，我会告诉你如何做现在。创建一个名为 Scene1 的新类，只是为了显示转换工作，我们将在这个新场景中添加一个sprite。在 init 方法中：

This creates a menu item image assigned to a selector, adds it to a menu, and then on click, transitions to a new scene, which I will show you how to do now. Create a new class called Scene1, and just to show that the transition worked, we will add a sprite in this new scene. In your init method:

-(id) init
{
if( (self=[super init])) {

    sprite = [CCSprite spriteWithFile:@"yourimage.png"];

    sprite.position = ccp(100,200);
    [self addChild:sprite];
}
return self;
}

如果你在屏幕上看到这个新的sprite，

If you see this new sprite on the screen, it means that everything worked.

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