C# 如何在XNA上停止模型动画？

我不明白如何暂停XNA的动画。我可以启动模型的动画，但不能停止它。 我使用SkinningSample\u 4\u 0示例dll

这是我要使用的代码

    protected override void LoadContent()
        {
            //Model - Player
            model_player = Content.Load<Model>("Models\\Player\\models");
            // Look up our custom skinning information.
            SkinningData skinningData = model_player.Tag as SkinningData;

            if (skinningData == null)
                throw new InvalidOperationException
                    ("This model does not contain a SkinningData tag.");

            // Create an animation player, and start decoding an animation clip.
            animationPlayer = new AnimationPlayer(skinningData);

            AnimationClip clip = skinningData.AnimationClips["ArmLowAction_006"];

            animationPlayer.StartClip(clip);

}

protected overide update(GameTime gameTime)
{
            KeyboardState key = Keyboard.GetState();
            animationPlayer.Update(gameTime.ElapsedGameTime, true, Matrix.Identity);
            //  If player don't move -> stop anim 
            if (!key.IsKeyDown(Keys.W) && !keyStateOld.IsKeyUp(Keys.S) &&           !keyStateOld.IsKeyUp(Keys.A) && !keyStateOld.IsKeyUp(Keys.D))
            {
                //animation stop ? not exist ?
                animationPlayer.Stop();
                isPlayerStop = true;
            }
            else
            {
                if(isPlayerStop == true)
                {
                     isPlayerStop = false;
                     animationPlayer.StartClip(Clip);
            }
}

---

我终于自己找到了^^

if (!key.IsKeyDown(Keys.W) && !key.IsKeyDown(Keys.A) && !key.IsKeyDown(Keys.D) && !key.IsKeyDown(Keys.S))
{
             //Stop animation for player walking
             animationPlayer.Update(new TimeSpan(0, 0, 0), true, Matrix.Identity);
}
else
{
             //Continue the animation 
             animationPlayer.Update(gameTime.ElapsedGameTime, true, Matrix.Identity);
}

---

对不起，我会手动得到回复。对不起，这个问题真的不清楚。对不起，我编辑了我问题的解释。我试着把它缩短，效果更好。因为我不会说基础英语。