用于iPhone和触摸检测的cocos2D问题

我只是不明白.我使用cocos2d开发iPhone/Pod上的小游戏.框架很棒,但我在触摸检测时失败了.我读到你只需要在CocosNode子类的实现中覆盖正确的函数(例如"touchesBegan").但它不起作用.我该怎么办？

功能:

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{NSLog(@"tickle, hihi!");}

我完全错了吗？

谢谢!

1> Genericrich..：

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Layer是唯一可以触及的cocos2d类.

诀窍是,Layer的所有实例都会一个接一个地传递触摸事件,因此您的代码必须处理这个问题.

我是这样做的:

-(BOOL)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInView: [touch view]];
CGPoint cLoc = [[Director sharedDirector] convertCoordinate: location];

float labelX = self.position.x - HALF_WIDTH;
float labelY = self.position.y - HALF_WIDTH;
float labelXWidth = labelX + WIDTH;
float labelYHeight = labelY + WIDTH;

if( labelX < cLoc.x &&
    labelY < cLoc.y &&
    labelXWidth > cLoc.x &&
    labelYHeight > cLoc.y){
        NSLog(@"WE ARE TOUCHED AND I AM A %@", self.labelString);
        return kEventHandled;
    } else {
        return kEventIgnored;
    }

}

请注意,cocos2d库具有"ccTouchesEnded"实现,而不是Apple标准.它允许您返回一个BOOL,指示您是否处理了该事件.

祝好运!

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你可以让任何CCNode课程接受触动!例如:[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:NO];

2> jjxtra..：

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你有没有将它添加到你的图层init方法？

    // isTouchEnabled is an property of Layer (the super class).
    // When it is YES, then the touches will be enabled
    self.isTouchEnabled = YES;

    // isAccelerometerEnabled is property of Layer (the super class).
    // When it is YES, then the accelerometer will be enabled
    self.isAccelerometerEnabled = YES;