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Src/Unity/Scripts/WorldChunk/WorldTerrainBehaviour.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using Cysharp.Threading.Tasks;
+using Quadtree;
+using UnityEditor.SceneManagement;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using YooAsset;
+
+namespace BITKit.OpenWorld
+{
+	public class WorldTerrainBehaviour : MonoBehaviour,IWorldChunkObject
+	{
+		[SerializeReference, SubclassSelector] private IReference sceneName;
+		[SerializeField] private Vector3 size;
+		[SerializeField] private Vector3 position;
+		[SerializeField, ReadOnly] private int lod = -1;
+
+		private SceneHandle _sceneHandle;
+		
+		[BIT]
+		public async void Load()
+		{
+			if (_sceneHandle is not null) return;
+			var stopWatcher = new System.Diagnostics.Stopwatch();
+			stopWatcher.Start();
+			_sceneHandle = YooAssets.LoadSceneAsync(sceneName.Value,LoadSceneMode.Additive,suspendLoad:true,priority:8);
+			await _sceneHandle;
+			stopWatcher.Stop();
+			Debug.Log($"加载场景 {sceneName.Value} 耗时 {stopWatcher.ElapsedMilliseconds}ms");
+		}
+		[BIT]
+		public async void Unload()
+		{
+			if (_sceneHandle is null) return;
+			var stopWatcher = new System.Diagnostics.Stopwatch();
+			stopWatcher.Start();
+			await _sceneHandle.UnloadAsync();
+			_sceneHandle = null;
+			stopWatcher.Stop();
+			Debug.Log($"卸载场景 {sceneName.Value} 耗时 {stopWatcher.ElapsedMilliseconds}ms");
+		}
+
+		public Bounds GetBounds()=>
+			new Bounds(position, size);
+
+		public Node<IWorldChunkObject> ParentNode { get; set; }
+		public void QuadTree_Root_Initialized(IQuadtreeRoot<IWorldChunkObject, Node<IWorldChunkObject>> root)
+		{
+		}
+		public int Id { get; set; }
+
+		public int Lod
+		{
+			get=>lod;
+			set
+			{
+				lod = value;
+				switch (value)
+				{
+					case 0:
+						Load();
+						break;
+					default:
+						Unload();
+						break;
+				}
+			}
+		}
+
+		private void Start()
+		{
+			WorldTerrainService.Singleton.Register(this);
+			destroyCancellationToken.Register(() => WorldTerrainService.Singleton.Unregister(this));
+		}
+
+		private void OnDrawGizmosSelected()
+		{
+			Gizmos.color = Color.red;
+			Gizmos.DrawWireCube(position, size);
+		}
+	}
+
+}