Cocos2d iphone 触摸CCArray中的特定CCSprite

我在编码时遇到了问题，无法在数组中移动特定的精灵

-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{        
    UITouch* myTouch = [touches anyObject];
    CGPoint location = [myTouch locationInView: [myTouch view]];
    location = [[CCDirector sharedDirector]convertToGL:location];
    CCSprite*grade=[grades lastObject];
    [grade runAction:[CCMoveTo actionWithDuration:3 position:location]];

}

数组移动的最后一个对象

你能帮我更正代码，让它在数组中触摸特定的精灵，并用ccTouchesMove方法移动它吗

另外，我只使用cocos2d，不使用box2d

-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{        
    UITouch* myTouch = [touches anyObject];
    CGPoint location = [myTouch locationInView: [myTouch view]];
    location = [[CCDirector sharedDirector]convertToGL:location];

    for (CCSprite *grade in grades) {
        if (CGRectContainsPoint(grade.boundingBox, location)) {
            [grade runAction:[CCMoveTo actionWithDuration:3 position:location]];
        }
    }   

}

CGRectContainsPoint将检查所接触的位置是否在给定的rect内。所以我所做的就是迭代你的精灵数组，对于位置在矩形边框内的精灵，移动那个精灵。如果只想移动第一个被触摸的精灵，可以在if语句中添加一个中断