[游戏开发]Spine进行动画同时播放（动画叠加）

```csharp
using Sirenix.OdinInspector;
using Spine.Unity;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MixTest1 : MonoBehaviour
{
	[SerializeField]
	[SpineAnimation]
	private string _beforeAnim;



	[SerializeField]
	[SpineAnimation]
	private string _animationName;
	
	//播放通道序号
	public int TrackIndex = 1;
	public float AttachmentThreshold = 1;
	public float MixDuration = 0;
	public float mixDuration = 5;
	public float delay = 0.1f;

	public SkeletonAnimation skeletonAnimation;


	[Button("Test0")]
	public void Play1()
	{
	
		// 默认前面动画在0播放，可自行修改
		var track = skeletonAnimation.AnimationState.SetAnimation(0, _beforeAnim, true);

	}

	[Button("Test1")]
	public void PlayShoot()
	{
		// 叠加动画 在 通道1播放
		var track = skeletonAnimation.AnimationState.SetAnimation(TrackIndex, _animationName, false);
		track.AttachmentThreshold = AttachmentThreshold;
		track.MixDuration = MixDuration;
		var empty = skeletonAnimation.state.AddEmptyAnimation(TrackIndex, mixDuration, delay);
		empty.AttachmentThreshold = 1f;
	}
}

在做动画叠加的时候，部分融化直接的 骨骼冲突导致 某些时候只能A融合B而不能B融合A,所以在制作动画的时候，需要考虑好动画之间的关系，哪些是基础动画，哪些是叠加动画