ios - 当前动画帧-SKSpriteNode

Question

在我的游戏中，我有一个运行无尽动画的SpriteNode；用户可以通过点击按钮(也可以继续)来停止动画；我需要了解动画的当前帧，以便可以(从XML文件)读取与其关联的正确值。

这是我的代码:

SKAction *animateCircle = [SKAction
                         animateWithTextures:_animationTextures
                         timePerFrame: [self getAnimationSpeedAccordingToStage]];
    SKAction *repeatAnimation = [SKAction repeatActionForever:animateCircle];
    [shapeNode runAction:repeatAnimation withKey:@"shapeAnimation"];
    animationStartTime = [NSDate date];
    [self resumeShapeAnimation];

Answer 1

您的动画纹理编号了吗？
如果他们遵循类似textureNameNumber的模式，则可以使用我本人使用的以下解决方案:

  -(int) getAnimationFrameFromTexture: (SKTexture*) texture imageName:(NSString*) name
{
    NSString* textureString = [NSString stringWithFormat:@"%@", texture];
    int i;
    char numberStr[4]="000";
    for( i=0 ;i<[textureString length]; i++) 
    {
        char character = [textureString characterAtIndex:i];
        if(character=='\'')
            break; //found '
    }
   //Adds length
    i+=[name length]+1;
    for(int j=0;i<[textureString length];i++, j++)
    {
        char character = [textureString characterAtIndex:i];
        numberStr[j]=character;
        if(character=='\'')
            break;
    }
    numberFromString=[NSString stringWithUTF8String:numberStr];
    int number = [numberFromString intValue];   
    return number;
}