cocos2d简易引导

一.安装

下载:http://www.cocos2d-iphone.org/download

进入目录,执行

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./install-templates.sh -u

如果之前已经存在可以这样强制更新

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./install-templates.sh -f -u

这会安装三个模版:

　　标准cocos2d模版

　　带box2d的模版

　　带chipmunk的模版

二.sprite小例

1.创建一个标准模版生成的工程.

2.在xxxLayer.m中全局声明(也可以不声明,而在后面用getChildByTag)

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CCSprite *seeker1;

CCSprite *cocosGuy;

3.在init的if块里面重写

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// create and initialize our seeker sprite, and add it to this layer

seeker1 = [CCSprite spriteWithFile: @"seeker.png"];

seeker1.position = ccp( 50, 100 );

[self addChild:seeker1];

 

  

// do the same for our cocos2d guy, reusing the app icon as its image

cocosGuy = [CCSprite spriteWithFile: @"Icon.png"];

cocosGuy.position = ccp( 200, 300 );

[self addChild:cocosGuy];

4.动起来(使用action)

上一步的if块最后添加

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[self schedule:@selector(nextFrame:)];

然后外面定义nextFrame函数

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- (void) nextFrame:(ccTime)dt {

    seeker1.position = ccp( seeker1.position.x + 100*dt, seeker1.position.y );

    if (seeker1.position.x > 480+32) {

        seeker1.position = ccp( -32, seeker1.position.y );

    }

}

5.可交互

添加头

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#import "CCTouchDispatcher.h"

重写函数

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-(void) registerWithTouchDispatcher

{

    [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];

}

3中if块最后添加

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self.isTouchEnabled = YES;

添加函数

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- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event {

 

    return YES;

 

}

 

- (void)ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event {

 

    CGPoint location = [self convertTouchToNodeSpace: touch];

 

  

 

    [cocosGuy stopAllActions];

 

    [cocosGuy runAction: [CCMoveTo actionWithDuration:1 position:location]];   

 

}

　　

三.场景切换

开始:

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[[CCDirector sharedDirector] runWithScene: [HelloWorld scene]];

替换:

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[[CCDirector sharedDirector] replaceScene: [SomeOtherScene scene]];

动态替换(pop时不可动画):

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CCDirector sharedDirector] replaceScene:

[CCTransitionFade transitionWithDuration:0.5f scene:[SomeOtherScene scene]]];

在你用replace方式替换场景的时候,cocos2d自动清理内存。它会移除所有的节点,停止所有的动作,并且停止所有选择器的预定。所以没

有调用cocos2d的removeAll方法。

另:触摸事件对比

Standard Touch Delegate(标准)

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@protocol CCStandardTouchDelegate <NSObject>

@optional

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;

- (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;

- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;

- (void)ccTouchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;

@end

Targeted Touch Delegate(定向)

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@protocol CCTargetedTouchDelegate <NSObject>

- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event;

@optional

// touch updates:

- (void)ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event;

- (void)ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event;

- (void)ccTouchCancelled:(UITouch *)touch withEvent:(UIEvent *)event;

@end

注意:

1)都需要self.isTouchEnabled = YES;

2)参数一个是touches一个是touch

3)began的返回值,定向的控制事件是否传递

4)注册

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-(void) registerWithTouchDispatcher

{

    [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];

}

不是CCLayer和它的子类要或许点击事件,需要实现协议,并在onEnter中注册触摸种类,并在onExit中卸载

参考:http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:index

http://www.cocos2d-iphone.org/wiki/doku.php/tips:touchdelegates