1. 实现骨骼动画动作的切换，主要由美术提供Spine骨骼动画文件，里面有对应的动作action。该方式通过action名字进行切换指定的骨骼动作。
    2. 变身，将原来创建的游戏物体删掉，创建新的游戏物体绑定新的骨骼动画文件达到变身的目的。 ```csharp using System.Collections; using System.Collections.Generic; using UnityEngine; using Spine; using Spine.Unity; using System; using System.Runtime.CompilerServices;

    ///

    /// Spine骨骼动画 /// public class SpineAnimationManage { private static SpineAnimationManage manage = null;

    1. /// <summary>
    2. /// 实例化
    3. /// </summary>
    4. /// <returns></returns>
    5. public static SpineAnimationManage Instance()
    6. {
    7.     if (manage == null)
    8.     {
    9.         manage = new SpineAnimationManage();
    10.     }
    11.     return manage;
    12. }
    14. /// <summary>
    15. /// 动画播放
    16. /// </summary>
    17. /// <param name="sg">动画对象</param>
    18. /// <param name="trackIndex">权重值：数值越大优先级越高</param>
    19. /// <param name="action">指定动作</param>
    20. /// <param name="actionDefault">默认动作</param>
    21. /// <param name="loop">是否循环</param>
    22. public void SpinePlayAnimation(SkeletonGraphic sg, int trackIndex, string action, string actionDefault, bool loop)
    23. {
    24.     //var spineAnimation = assest.GetSkeletonData(false).FindAnimation(action);
    25.     if (!string.IsNullOrEmpty(action) && !string.IsNullOrEmpty(actionDefault))
    26.     {
    27.         if (loop)
    28.         {
    29.             sg.AnimationState.SetAnimation(trackIndex, action, loop);
    30.         }
    31.         else
    32.         {
    33.             sg.AnimationState.SetAnimation(trackIndex, action, loop).Complete += delegate
    34.             {
    35.                 sg.AnimationState.SetAnimation(trackIndex, actionDefault, true);
    36.             };
    37.         }
    38.     }
    39. }
    42. /// <summary>
    43. /// 动画按添加顺序播放
    44. /// </summary>
    45. /// <param name="flag">是否循环</param>
    46. /// <param name="count">循环次数</param>
    47. public static void SpinePlayDic(bool flag,int count)
    48. {
    49.     if (flag)
    50.     {
    51.         //for (int i = 0; i < count; i++)
    52.         //{
    53.         //    showDic();
    54.         //}
    55.     }
    56.     else
    57.     {
    58.         //showDic();
    59.     }
    61. }
    63. /// <summary>
    64. /// 设置前一个动画向后一个动画之间平滑过渡的时间,切换的时候混合多少
    65. /// </summary>
    66. /// <param name="beforeName">前一个动画</param>
    67. /// <param name="afterName">后一个动画</param>
    68. /// <param name="time">平滑过渡的时间</param>
    69. public static void SpineMix(AnimationStateData animStateData, string beforeName, string afterName, float time)
    70. {
    71.     animStateData.SetMix(beforeName, afterName, time);
    72. }
    74. /// <summary>
    75. /// 倍速播放,等于0 动画暂停,注意速度更改后为永久性的
    76. /// </summary>
    77. /// <param name="speed">播放速度</param>
    78. public static void SpineSpeed(SkeletonGraphic skeletonGraphic, float speed)
    79. {
    80.     skeletonGraphic.timeScale = speed;
    81. }
    83. /// <summary>
    84. /// 从任意某一帧开始播放
    85. /// </summary>
    86. /// <param name="weight">权重值</param>
    87. /// <param name="spineName">动画名称</param>
    88. /// <param name="flag">是否循环</param>
    89. /// <param name="frames">要开始的帧数</param>
    90. public static void SpineAnyPointPlay(SkeletonGraphic skeletonGraphic, int weight, string spineName, bool flag, float frames)
    91. {
    92.     skeletonGraphic.AnimationState.SetAnimation(weight, spineName, flag).TrackTime = frames / 30f;
    93. }

    }

    ```