gpu instancer crowd 动画使用方式

实现先将动画对象，使用autolod插件生成lodground，
然后在GPUI Crowd Manager 生成CrowdPrefab，然后bake animation。
然后 Crowd 的animationdata 那里勾上use crowd animator，apply root motion. 然后 extra size buff设置为10000 就可以使用了
生成对象

   private List<GPUInstancerPrefab> _instanceList;
   生成方法
      GameObject g = Instantiate(prefab, spawnPosition, Quaternion.identity);
    GPUICrowdPrefab prefabInstance = g.GetComponent<GPUICrowdPrefab>(); // We reference the prototype by the GPUICrowdPrefab component that GPUI adds on the prefab...
      GPUInstancer.GPUInstancerAPI.AddPrefabInstance(gpuiCrowdManager, prefabInstance);
  _instanceList = new List<GPUInstancerPrefab>();
_instanceList.Add(prefabInstance);
   GPUInstancerAPI.RegisterPrefabInstanceList(gpuiCrowdManager, _instanceList);

动画切换

 if (this.transform.GetComponent<GPUICrowdPrefab>() != null)
 {
     GPUICrowdPrototype crowdPrototype = this.transform.GetComponent<GPUICrowdPrefab>().prefabPrototype as GPUICrowdPrototype;
     GPUIAnimationClipData clipData = crowdPrototype.animationData.clipDataList[2];//需要切换的动画index，只能有四个
     GPUICrowdAPI.StartAnimation(this.transform.GetComponent<GPUICrowdPrefab>(), clipData, 0);
 }

基于脚本的动画播放进度的过渡，根据进度触发攻击事件，不用脚本可以在Manager 中设置在第几帧触发事件

 GPUICrowdPrefab gPUICrowdPrefab = this.transform.GetComponent<GPUICrowdPrefab>();
 if (gPUICrowdPrefab != null)
 {
     GPUICrowdPrototype crowdPrototype = gPUICrowdPrefab.prefabPrototype as GPUICrowdPrototype;
     GPUIAnimationClipData clipData = crowdPrototype.animationData.clipDataList[1];
     //    GPUICrowdAPI.StartAnimation(gPUICrowdPrefab, clipData, 0);
     float t = gPUICrowdPrefab.crowdAnimator.GetClipTime(clipData);
     float currentClipFrame = GPUICrowdAnimator.GetClipFrame(t, clipData.length, clipData.clipFrameCount, false);
     float progress = currentClipFrame / clipData.clipFrameCount;
     if (progress >= 0.95f)
     {
         Vector4 _blendWeights= new Vector4(0, 0, 0, 0);
         isAttacking = false;
         _blendWeights.x = 1;
         _blendWeights.y = 0;
         clipData = crowdPrototype.animationData.clipDataList[0];
         gPUICrowdPrefab.crowdAnimator.StartBlend(gPUICrowdPrefab.runtimeData, gPUICrowdPrefab. gpuInstancerID - 1,_blendWeights, crowdPrototype.animationData.clipDataList[0], crowdPrototype.animationData.clipDataList[1], default, default, null, null, 0.1f);
 
     }

_blendWeights为过渡权重，x为1，y为0，就是过渡到第一个动画，0.1f为过渡值。
Vector4 _blendWeights是代表仅有的四个动画的权重