我能够使目标沿着屏幕的顶部随机产生并消失在屏幕的底部。唯一的问题是每次只有目标移动到一个固定点。我希望他们移动到屏幕底部的随机点。有任何想法吗? 谢谢。随机雪碧目的地
下面是代码:
- (无效)addTarget {
CCSpriteSheet *sheet = [CCSpriteSheet spriteSheetWithFile:@"meteorImgs.png" capacity:50];
[self addChild:sheet];
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"metImg.plist"];
target = [CCSprite spriteWithFile:@"Frame2.png" rect:CGRectMake(0, 0, 60, 120)];
CGSize winSize = [[CCDirector sharedDirector] winSize];
int minY = target.contentSize.height/2;
int maxY = winSize.width*1.5 - target.contentSize.height/2;
int rangeY = maxY - minY;
int actualY = (arc4random() % rangeY) + minY;
target.position = ccp(actualY, target.contentSize.height*5); //- (-target.contentSize.height/2), actualY);
[self addChild:target];
int minDuration = 2.0;
int maxDuration = 4.0;
int rangeDuration = maxDuration - minDuration;
int actualDuration = (arc4random() % rangeDuration) + minDuration;
id actionMove = [CCMoveTo actionWithDuration:actualDuration position:ccp(160,0)];
id actionMoveDone = [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)];
[target runAction:[CCSequence actions:actionMove, actionMoveDone, nil]];
}
上一个:
您好,
我用Ray Wenderlich's code此。我的问题是,如何让目标在纵向模式下产生在屏幕的顶部,并移动到屏幕的底部。不管我改变什么,都没有发生。现在,正如教程所说的那样,目标从右向左移动。
我想要做的(应该是更具体)是,而不是使目标从屏幕的右侧移动到左侧,我希望他们从顶部移动到屏幕的底部。(从上到下)。不知何故,代码告诉目标产生在右侧,但我不知道它在哪里。这是代码的主要内容,没有别的可能影响目标的位置。
-(void)addTarget {
CCSprite *target = [CCSprite spriteWithFile:@"dude_jump.png"
rect:CGRectMake(0, 0, 30, 60)];
CGSize winSize = [[CCDirector sharedDirector] winSize];
int minY = target.contentSize.width/2;
int maxY = winSize.width - target.contentSize.width/2;
int rangeY = maxY - minY;
int actualY = (arc4random() % rangeY) + minY;
target.position = ccp(winSize.width + (target.contentSize.width/2), actualY);
[self addChild:target];
int minDuration = 2.0;
int maxDuration = 4.0;
int rangeDuration = maxDuration - minDuration;
int actualDuration = (arc4random() % rangeDuration) + minDuration;
id actionMove = [CCMoveTo actionWithDuration:actualDuration position:ccp(-target.contentSize.width/2, actualY)];
id actionMoveDone = [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)];
[target runAction:[CCSequence actions:actionMove, actionMoveDone, nil]];
}
海伪装这是怎么回事? – Will 2010-09-29 11:40:04
感谢您的支持。更好地去除噪音。 :-) – 2010-09-29 14:09:56