javascript - kinecticjs - 如何更改 Sprite frameRate

Question

我有一个 Kinetic.Sprite obj：

//create troll obj:
var trollImageObj = new Image();
trollImageObj.onload = function () {
    var troll = new Kinetic.Sprite({
        x: 250,
        y: 40,
        image: trollImageObj,
        animation: 'solid_down',
        animations: animations,
        frameRate: 2
    });
.
.
.

每次按下箭头键时，我都会troll使用troll.setAnimation(newAnimation);（每个箭头键按下不同的动画）更改动画。

我也想换frameRate，可是找不到方法？（没有“setFrameRate”）有什么办法吗？

Answer 1

确实有一种方法称为setFrameRate（参见此处http://kineticjs.com/docs/Kinetic.Sprite.html）。

诀窍是停止精灵，设置新的帧速率和动画，然后再次启动精灵。使用您提供的代码，必须添加：

   troll.stop();
   troll.setAnimation('newAnimation');
   troll.setFrameRate(10); // 10 as an example
   troll.start();

必须在onload回调中添加此代码。

Answer 2

well, you can try just accessing the {config} attributes directly:

  trollImageObj.attrs.frameRate = some number;

but I don't think that will work; I think the object animation is not modifiable after you create it.

The thing to do would be either to create separate sprites for your different animations, or to add/remove animation frames to your animation.