ios – 停止SKAction,RepeatsForever – Sprite Kit

我想在我的spriteNode上运行两个动画,具体取决于它的旋转.如果值为负,则运行其中一个动画,如果它是正的,则运行另一个.我设法做到这一点(但是我有一个问题).如果Animation1正在运行,并且zRotation更改为正,则它们都会运行,因为它们将永远重复.所以我这样做：

NSMutableArray *walkingTextures = [NSMutableArray arrayWithCapacity:14];


for (int i = 1; i < 15; i++) {
    Nsstring *textureName =
    [Nsstring stringWithFormat:@"character%d",i];
    SKTexture *texture =
    [SKTexture textureWithImageNamed:textureName];
    [walkingTextures addobject:texture];
}

SKAction *spriteAnimation = [SKAction animateWithTextures:Textures timePerFrame:0.04];
    repeatWalkAnimation = [SKAction repeatActionForever:spriteAnimation];
    [sprite runAction:repeatWalkAnimation withKey:@"animation1"];

然后当我想要停止：

[self removeActionForKey:@"animation1"];

但是它一直在运行,那么我该怎么停止呢？谢谢！

[self removeActionForKey:@"animation1"];

[sprite removeActionForKey:@"animation1"];