cocos2d 帮助: CCMenuItem 未选中 'EXC_BAD_ACCESS'和 CCCallFunc

发布于 2024-12-17 08:38:09 字数 855 浏览 3 评论 0原文

我一直遇到 CCMenuItem 及其与 CCCallFunc 的计时问题。

基本上我得到了“EXC_BAD_ACCESS”

@ CCMenuItem 类的这一行

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
    ...
    [selectedItem_ unselected]; // EXC_BAD_ACCESS
    [selectedItem_ activate];
    ...
}

似乎菜单项在触摸结束之前被释放。我使用 CCCallFunc 调用“removeThisSprite”方法，将其从父级中删除，

因此我调用的 CCMenuItem 序列的最后一个操作：

[CCCallFuncO actionWithTarget:self selector:@selector(removeThisSprite:) object: _currentButton]

removeThisSprite 方法如下：

CCMenuItemSprite2 *sender = nil;
sender.isEnabled = NO;

if ([_sender isKindOfClass:[CCMenuItemSprite class]]) {
    sender = _sender;
    [sender removeFromParentAndCleanup: YES];
}

这通常发生在玩家通过点击“垃圾邮件”屏幕时，但除非水龙头快速，否则不会发生。我正在制作的游戏很可能会发生这种情况。我猜测玩家按按钮太快会出现某种计时问题。

原文

I've been having problems with CCMenuItem and its timing with CCCallFunc.

Basically I'm getting 'EXC_BAD_ACCESS'

@ this line of the CCMenuItem class

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
    ...
    [selectedItem_ unselected]; // EXC_BAD_ACCESS
    [selectedItem_ activate];
    ...
}

It seems the menu item is deallocated before the touch ends. I'm using CCCallFunc to call a 'removeThisSprite' method that removes it from the parent

so the last action of the CCMenuItem sequence I call:

[CCCallFuncO actionWithTarget:self selector:@selector(removeThisSprite:) object: _currentButton]

The removeThisSprite method is like this:

CCMenuItemSprite2 *sender = nil;
sender.isEnabled = NO;

if ([_sender isKindOfClass:[CCMenuItemSprite class]]) {
    sender = _sender;
    [sender removeFromParentAndCleanup: YES];
}

This generally happens when the player 'spams' the screen with taps, but doesn't happen unless the taps are rapid. Which is likely to occur with a game I'm making. I'm guessing there's some sort of timing issue going on with players pressing the button too fast.

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故事与诗 2024-12-24 08:38:09

您始终可以尝试延迟删除菜单项：

[self performSelector:@selector(removeMenuItem:) withObject:sender afterDelay:0.1f];

...

-(void) removeMenuItem:(id)sender
{
   if ([sender isKindOfClass:[CCMenuItemSprite class]])
   {
      [sender removeFromParentAndCleanup: YES];
   }
}

You can always try and delay the removal of the menu item:

[self performSelector:@selector(removeMenuItem:) withObject:sender afterDelay:0.1f];

...

-(void) removeMenuItem:(id)sender
{
   if ([sender isKindOfClass:[CCMenuItemSprite class]])
   {
      [sender removeFromParentAndCleanup: YES];
   }
}

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