。如何從剛剛停止的幀開始反轉動畫？

Question

你知道動畫是如何從靜止幀中反轉的嗎？

EX>動畫幀是1 - > 2 - > 3 - > 4 - > 5

如果我觸摸在3幀然後進行動畫1 - > 2 - > 3 - > 2 - > 1

如果我觸摸4幀然後動畫1 - > 2 - > 3 - > 4 - > 3 - > 2 - > 1

mh ...有沒有辦法使用CCAnimate類？

Answer 1

你可以嘗試這樣的事：

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{ 

    //Here "numbers" is your Animation Sprite 
    //Get display frame of the sprite 
    CCSpriteFrame *currentFrame = [numbers displayFrame]; 
    GLuint index = currentFrame.texture.name; 

    //Use this index to determine current frame's index 
    //Beware!!! As I know it will not return a zero based index, so check it out with an output 

    /* 

    NEXT : 

     - Now you know the current frame index, let's say it is 3 
     - Re-order your spriteFrames like 3->2->1 (You have new spriteFrames array) 
     - CCAnimation with this spriteFrames array 
     - CCAction with this CCAnimation 
     - Run the Action!!! There, your reversed animation. 

    */ 

}