// Construct Shared Array For Serveral Entities
protected override void OnUpdate()
{
// 读取数据并存储在 BlobAsset 中
gmBlobRefs = new List <BlobAssetReference <GroundMotionBlobAsset> >();
// 获得所有可选 GroundMotion 的名字
var gms = GmDataReader.GroundMotionFolders(groundMotionPath);
foreach (var item in gms)
{
//FIXME: Debug 运行了两次，表示读取了两次数据？ 可能有问题代码
//Debug.Log(item);
if (!GetData(item))
{
break;
}
// 创建 BlobBuilder，赋值 gmArray 和 gmName
BlobBuilder blobBuilder = new BlobBuilder(Allocator.Temp);
// Blob 声明资产类型
ref GroundMotionBlobAsset groundMotionBlobAsset = ref blobBuilder.ConstructRoot <GroundMotionBlobAsset>();
BlobBuilderArray <GroundMotion> gmArray = blobBuilder.Allocate(ref groundMotionBlobAsset.gmArray, acc.Count);
// 存储加速度数据为 BlobArray
// TODO: 也许有新的数据转换方式从 List<Vector3> 到 BlobBuilderArray<GroundMotion>
for (int i = 0; i < acc.Count; ++i)
{
gmArray[i] = new GroundMotion {
acceleration = new float3(acc[i])
};
}
// 存储相应地震名字为 BlobString
blobBuilder.AllocateString(ref groundMotionBlobAsset.gmName, item);
// 声明 Blob 资产引用
BlobAssetReference <GroundMotionBlobAsset> groundMotionBlobAssetReference =
blobBuilder.CreateBlobAssetReference <GroundMotionBlobAsset>(Allocator.Persistent);
gmBlobRefs.Add(groundMotionBlobAssetReference);
// 释放 BlobBuilder
blobBuilder.Dispose();
}