[Unity动画]04.Avatar Mask

参考链接：

https://www.cnblogs.com/hammerc/p/4832637.html

Avatar Mask主要用于动画层融合。例如说，边跑边举起东西，这个实际上就是下半身播放跑步动画，上半身播放举起动画，所谓的Avatar Mask就是播放动画时让身体的某些部位不起作用(即不播放动画)

1.添加一个新的动画层

其中Empty是一个空的动画，同时添加一个Trigger型参数wave

TestAnimator.cs

 1 using UnityEngine;
 2
 3 public class TestAnimator : MonoBehaviour {
 4
 5     //------------------------------------------外部
 6     public float Move = 0;
 7     public bool IsDying = false;
 8
 9     //------------------------------------------内部
10     private Animator animator;
11
12     //常数
13     private int baseLayerIndex;
14     private int idleStateHash;
15     private int runStateHash;
16     private int dyingStateHash;
17     private string movePara;
18     private string isDyingPara;
19     private string wavePara;
20
21     void Start ()
22     {
23         animator = GetComponent<Animator>();
24
25         baseLayerIndex = animator.GetLayerIndex("Base Layer");
26         idleStateHash = Animator.StringToHash("Base Layer.Idle");
27         runStateHash = Animator.StringToHash("Base Layer.Run");
28         dyingStateHash = Animator.StringToHash("Base Layer.Dying");
29         movePara = "move";
30         isDyingPara = "isDying";
31         wavePara = "wave";
32     }
33
34     void Update ()
35     {
36         //------------------------------------------播放动作
37         animator.SetFloat(movePara, Move);
38         if (IsDying)
39         {
40             animator.SetBool(isDyingPara, true);
41             IsDying = false;
42         }
43
44         //------------------------------------------动作恢复
45         AnimatorStateInfo stateInfo;
46         int fullPathHash;
47
48         //BaseLayer
49         stateInfo = animator.GetCurrentAnimatorStateInfo(baseLayerIndex);
50         if (!animator.IsInTransition(baseLayerIndex) && stateInfo.normalizedTime >= 1)
51         {
52             fullPathHash = stateInfo.fullPathHash;
53             if (fullPathHash == dyingStateHash)
54             {
55                 animator.SetBool(isDyingPara, false);
56             }
57         }
58     }
59
60     public void SetDying(bool state)
61     {
62         if (animator)
63         {
64             animator.SetBool(isDyingPara, state);
65         }
66     }
67
68     public void TriggerWave()
69     {
70         if (animator)
71         {
72             animator.SetTrigger(wavePara);
73         }
74     }
75
76     public void ActionCallBack(string s)
77     {
78         if (s == "dyingStart")
79         {
80             Debug.Log("111");
81         }
82         else if (s == "dying")
83         {
84             Debug.LogWarning("222");
85         }
86         else if (s == "dyingEnd")
87         {
88             Debug.LogError("333");
89         }
90     }
91 }

NewBehaviourScript.cs

 1 using UnityEngine;
 2
 3 public class NewBehaviourScript : MonoBehaviour {
 4
 5     public TestAnimator testAnimator;
 6
 7     void Update ()
 8     {
 9         if (Input.GetKeyDown(KeyCode.Q))
10         {
11             testAnimator.Move = 1;
12         }
13         if (Input.GetKeyDown(KeyCode.W))
14         {
15             testAnimator.TriggerWave();
16         }
17     }
18 }

效果如下。按下Q，播跑步动画，再按下W，覆盖为招手动画。可以试着将这两个层的位置换一下。可以看出，动画层越后优先级越高；同时还受动画层的权重影响。

2.创建一个Avatar Mask并添加到动画层中

如下图2，表示该动画层中只有上半身起作用

效果如下。按下Q，播跑步动画，再按下W，上半身播招手动画。