Question

我正在使用精灵套件制作游戏。我创建了一个菜单屏幕，用户按下按钮转换到下一个场景，我想在按下按钮时设置动画。

我正在尝试使用SKAction来执行此操作，我编写了此代码但是当我按下按钮时没有动画。

（我知道问题不在于这个代码没有运行，因为当按下按钮时，向下一个场景的转换完全按照预期工作，除了按钮动画不播放）

(void)runMenuTransition
{
//Animation for the button, the problem is that this doesn't seem to work

SKAction *buttonAnimation = [SKAction fadeAlphaBy:0.5 duration:0.2];
[self.playGameButton runAction: buttonAnimation];

sleep(1);

//Transition to the next scene (this part seems to work fine)

SKTransition *reveal = [SKTransition fadeWithDuration:0.75];
EclipseSecondMenuScene *newScene = [[EclipseSecondMenuScene alloc]initWithSize:self.size];
[self.scene.view presentScene:newScene transition:reveal];
}

如果有帮助，playGameButton是SKSpriteNode，它是.png图像。

我目前正在模拟器上运行它。

非常感谢任何建议的帮助。我很确定这对经验丰富的人来说是一件相当明显的事情。

感谢。

Answer 1

我不是100％肯定这个，而不是叫睡眠（）我认为你应该做一系列事件。

(void)runMenuTransition
{
//Animation for the button, the problem is that this doesn't seem to work

SKAction *buttonAnimation = [SKAction fadeAlphaBy:0.5 duration:0.2];
SKAction *wait = [SKAction waitForDuration:1];
SKAction *transition = [SKAction runBlock:^{
    //Transition to the next scene 

    SKTransition *reveal = [SKTransition fadeWithDuration:0.75];
    EclipseSecondMenuScene *newScene = [[EclipseSecondMenuScene alloc]initWithSize:self.size];
    [self.scene.view presentScene:newScene transition:reveal];
}];
[self.playGameButton runAction: [SKAction sequence:@[buttonAnimation,wait,transition]]];


}

SKAction似乎没有起作用

1 个答案: