/// <summary>
/// 若返回null,表示尚未（正在）进行初始化
/// </summary>
/// <param name="mesh"></param>
/// <returns></returns>
public static HalfEdgeMesh HEMesh(this Mesh mesh)
{
HalfEdgeMesh heMesh = null;
if (MeshManager.TryGetValue(mesh, out heMesh))
{
return(heMesh);
}
else
{
//heMesh = new HalfEdgeMesh(mesh);
//MeshManager.Add(mesh, heMesh);
//getHEMesh(mesh,(_heMesh)=> {
// heMesh = _heMesh;
//});
//Debug.LogWarning(mesh.name + "的半边数据结构正在构建中...");
return(null);
}
}
public static void startGetHEMesh(this Mesh mesh, UnityAction <bool, string> resultCallback)
{
Debug.Log("startGetHEMesh...");
HalfEdgeMesh heMesh = null;
//任务已在队列中
if (buildQueues.Contains(mesh))
{
resultCallback(false, mesh.name + "的半边数据结构正在构建中,请勿重复发起任务");
return;
}
//已经构建完成
if (MeshManager.TryGetValue(mesh, out heMesh))
{
resultCallback(true, mesh.name + "的半边数据结构已存在，请直接访问");
return;
}
buildQueues.Add(mesh);//表示mesh正在构建半边数据结构；
Vector3[] verticies = mesh.vertices;
Vector3[] normals = mesh.normals;
int[] triangles = mesh.triangles;
//进程通信控制器
UnityAction <string> messageHandler = (message) => { Debug.Log(message); };
//子进程
Thread initThread = new Thread(() => {
heMesh = new HalfEdgeMesh(mesh);
heMesh.Init(verticies, normals, triangles, messageHandler);
MeshManager.Add(mesh, heMesh);
buildQueues.Remove(mesh);
resultCallback(true, "半边数据结构构建完成");
});
//开启子进程
initThread.Start();
Debug.Log("GetHEMesh Thread is Started...");
}