6/10 建立一個簡單的cocos2D Demo

遊戲成品：一開始畫面中間有一個cocod2D的icon，然後你觸碰螢幕的某處，這個icon會移動過去。

首先開啟一個cocos2D的專案，然後建立一個新的class，我是取TowardLayer，繼承自CCLayer。

在TowardLayer.h裡面，改成下列：

#import "CCLayer.h"
#import "cocos2d.h"

@interface TowardLayer : CCLayer
{
    CCSprite *icon;
}

+(CCScene *) scene;
@end

然後在TowardLayer.m，改成以下內容。

#import "TowardLayer.h"


@implementation TowardLayer

+(CCScene *) scene
{
    // 'scene' is an autorelease object.
    CCScene *scene = [CCScene node];
   
    // 'layer' is an autorelease object.
    TowardLayer *layer = [TowardLayer node];
   
    // add layer as a child to scene
    [scene addChild: layer];
   
    // return the scene
    return scene;
}

-(id)init {
    self = [super init];
    if (self != nil) {
        isTouchEnabled_ = YES;
        CGSize winSize = [CCDirector sharedDirector].winSize;
        icon = [CCSprite spriteWithFile:@"icon-Small.png"];
        icon.position = ccp(winSize.width/2, winSize.height/2);
        [self addChild:icon];
    }
    return self;
}

-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
    for (UITouch *touch in touches) {
        CGPoint touchLocation = [touch locationInView:[touch view]];
        touchLocation =
        [[CCDirector sharedDirector] convertToGL:touchLocation];
             
        id moveIcon = [CCMoveTo actionWithDuration:1.0f position:touchLocation];
        [icon runAction:moveIcon];
    }
   
   
}

- (void) dealloc
{
    [super dealloc];
}


@end

最後一步驟是到AppDelegate.m裡面：

#import "TowardLayer.h"
 

.....

....

[[CCDirector sharedDirector] runWithScene: [HelloWorldLayer scene]]; //這行要改掉，改成下面這一行

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

....


我大概描述一下我寫的心得。

注意，用-(void)ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)even;會沒有反應，這讓我很訝異，還以為哪裡寫錯，後改成多點才對。萬一有遇到跟我類似的情況，還是改成多點的吧。