当前动画框架 - SKSpriteNode

时间:2014-02-13 00:31:13

标签: ios objective-c animation sprite-kit skaction

在我的游戏中,我有一个运行无尽动画的SpriteNode;用户可以通过按下按钮来停止动画(也可以恢复);我需要知道动画的当前帧,所以我可以读取与它相关的正确值(来自XML文件)。

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];

1 个答案:

答案 0 :(得分:0)

你的动画纹理是否编号? 如果他们遵循textureNameNumber这样的模式,你可以使用我自己使用的这个解决方案:

  -(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;
}