在Scene里面绘制编辑工具

功能要求

• 策划要在scene模式下编辑棋子摆放。
• 用handle.GUI绘制来解决了。

问题

• 在scene模式下编辑产生的数据，进入游戏模式后就全不见了。
• 改为executeAlways也没用。
• 我的解决办法是把编辑数据序列化保存到本地。
• 在OnEnable的时候再读取。
• 但是我忽然想到，直接把这些数据暴露在Inspector面板上，让unity帮我来序列化不就好了。这样就实现scene和play的数据通用，不会丢失数据了。
• 第二个事情
• 就是Scene模式下进行位置判断也很麻烦。因为他没有play模式下的那个相机。
• 所以我这边是用射线检测来做的。
• 第三个事情
• 按键检测也很麻烦。和play模式下不一样
• 第四事情
• 按键必须要在合适的时机进行Use，不然事件会传递给unity的工具本身。
• 下面是所有代码

using OfficeOpenXml.FormulaParsing.Excel.Functions.Math;
using System;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEditor.Rendering;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Pool;
using static PieceEditor;
using static UnityEngine.GridBrushBase;//[Serializable]
//class EditContext
//{
//    public int currLayMode;
//    public int currSelectRank;
//    public Vector2 scrollPos;
//    public string levelName;
//    public int mode;
//    public bool isNewFile;
//    public List<string> dataNames = new List<string>();
//    public List<string> levelTools = new List<string>();
//}
[ExecuteInEditMode]
public class SpecialLevelEditor : MonoBehaviour
{public List<Color> pieceColor;public SpriteRenderer SpriteRenderer;public Piece LayItemPrefab;public Transform PoolObj;Dictionary<Vector2Int, Piece> allPieces = new Dictionary<Vector2Int, Piece>();int currWidth => currLevelData.currWidth;int currHeight => currLevelData.currHeight;#region Property[HideInInspector] public int currLayMode;// { get { return editContext.currLayMode; } set { editContext.currLayMode = value; } }[HideInInspector] public int currSelectRank;// { get { return editContext.currSelectRank; } set { editContext.currSelectRank = value; } }[HideInInspector] public int mode;//{ get { return editContext.mode; } set { editContext.mode = value; } }[HideInInspector] public Vector2 scrollPos;// { get { return editContext.scrollPos; } set { editContext.scrollPos = value; } }[HideInInspector] public string levelName;// { get { return editContext.levelName; } set { editContext.levelName = value; } }[HideInInspector] public bool isNewFile;//{ get { return editContext.isNewFile; } set { editContext.isNewFile = value; } }#endregion[HideInInspector] public SpecialLevelData currLevelData;GUILayoutOption widthSetting => GUILayout.Width(120);GUILayoutOption heightSetting => GUILayout.Height(30);//Dictionary<string, path> allData = new Dictionary<string, SpecialLevelData>();List<string> dataNames = new List<string>();//=> editContext.dataNames;List<string> levelTools = new List<string>();//=> editContext.levelTools;private void Start(){}private void OnDestroy(){}// EditContext editContext;private void OnEnable(){SpriteRenderer.enabled = !Application.isPlaying;allPieces.Clear();if (currLevelData != null){var allData = currLevelData.GetComponentsInChildren<Piece>();foreach (var item in allData){allPieces.Add(item.PieceData.LayPos, item);}}dataNames.Clear();levelTools.Clear();ReadAllData(dataNames, "Assets/Resources/ShowLevels");ReadAllData(levelTools, "Assets/Resources/LevelTool");Debug.Log("编辑器启用");SceneView.duringSceneGui += DrawSceneGUI;pool = new ObjectPool<Piece>(CreateFunc, OnGet, OnRelease);}private void OnDisable(){// 移除每帧更新的回调SceneView.duringSceneGui -= DrawSceneGUI;//if(editContext != null)//{//    string projectPath = Application.dataPath;//    string filePath = Path.Combine(projectPath, "TempEditData.txt");//    File.WriteAllText(filePath, JsonUtility.ToJson(editContext));//    editContext = null;//}Debug.Log("禁用编辑器");}string GetPath(string prefabName){return $"Assets/Resources/ShowLevels/{prefabName}.prefab";}string GetToolPath(string prefabName){return $"Assets/Resources/LevelTool/{prefabName}.prefab";}void ReadAllData(List<string> container, string folder){// 目标文件夹路径string folderPath = folder;// 获取文件夹中的所有资源的 GUID（包括子文件夹）string[] guids = AssetDatabase.FindAssets("", new[] { folderPath });// 遍历 GUID，并打印出文件路径和文件名foreach (string guid in guids){// 将 GUID 转换为资源路径string path = AssetDatabase.GUIDToAssetPath(guid);// 获取文件名（通过路径）string fileName = System.IO.Path.GetFileNameWithoutExtension(path);container.Add(fileName);}}void SetColliderSize(){SpriteRenderer.GetComponent<BoxCollider>().size = new Vector3(currWidth, currHeight, 1);}private void DrawSceneGUI(SceneView sceneView){ 通过 Handles 绘制一个按钮Handles.BeginGUI();GUILayout.BeginVertical();DrawFile();DrawLevelData(sceneView);GUILayout.EndVertical();DrawRightBottom(sceneView);DrawRightUp(sceneView);if (mode == 1){Selection.activeObject = null;}Handles.EndGUI();}void DrawLine(){GUI.color = Color.red;GUILayout.Button("", GUILayout.Width(125), GUILayout.Height(5));GUI.color = Color.white;}void InstBorder(int index, Vector3 pos, Vector3 scale){GameObject obj = null;BoxCollider collider = null;if (currLevelData.BoxColliders == null || currLevelData.BoxColliders.Count < index + 1){obj = new GameObject();collider = obj.AddComponent<BoxCollider>();currLevelData.BoxColliders.Add(collider);}else{collider = currLevelData.BoxColliders[index];obj = collider.gameObject;}if (index == 2 || index == 3){obj.tag = UIManager.Ground;}obj.transform.position = pos;obj.transform.localScale = scale;obj.transform.SetParent(currLevelData.transform);}void AddBorder(){InstBorder(0, new Vector3(currWidth / 2f, 0, 0), new Vector3(0.1f, currHeight, 1));InstBorder(1, new Vector3(-currWidth / 2f, 0, 0), new Vector3(0.1f, currHeight, 1));//InstBorder(2, new Vector3(0, currHeight / 2f, 0), new Vector3(currWidth, 0.1f, 1));InstBorder(2, new Vector3(0, -currHeight / 2f, 0), new Vector3(currWidth, 0.1f, 1));}void Save(){if (currLevelData != null){AddBorder();using (ListPool<Vector2Int>.Get(out var keys)){keys.AddRange(allPieces.Keys);foreach (var item in keys){if (allPieces[item] == null){Debug.Log("检测到丢失");allPieces.Remove(item);}}}currLevelData.Pieces.Clear();foreach (var item in allPieces){currLevelData.Pieces.Add(item.Value.PieceData);}ResetPiece();// 将修改应用到预制体（保存实例修改）if (isNewFile){dataNames.Add(levelName);PrefabUtility.SaveAsPrefabAsset(currLevelData.gameObject, GetPath(levelName));}else{PrefabUtility.ApplyPrefabInstance(currLevelData.gameObject, InteractionMode.UserAction);}ClearObj();}}void ClearObj(){//ResetPiece();DestroyImmediate(currLevelData.gameObject);currLevelData = null;levelName = null;allPieces.Clear();}void DrawLevelData(SceneView sceneView){if (currLevelData != null){GUILayout.BeginHorizontal(widthSetting, heightSetting);GUILayout.Button("宽");var val = EditorGUILayout.IntField(currWidth);if (currLevelData.currWidth != val){currLevelData.currWidth = val;ResetPiece();}GUILayout.EndHorizontal();GUILayout.BeginHorizontal(widthSetting, heightSetting);GUILayout.Button("高");var hVal = EditorGUILayout.IntField(currHeight);if (currLevelData.currHeight != hVal){currLevelData.currHeight = hVal;ResetPiece();}GUILayout.EndHorizontal();SetColliderSize();SpriteRenderer.size = new Vector2(currWidth, currHeight);HandleClick(sceneView);foreach (var item in levelTools){if (GUILayout.Button(item, widthSetting, heightSetting)){var obj = PrefabUtility.InstantiatePrefab(AssetDatabase.LoadAssetAtPath<GameObject>(GetToolPath(item))) as GameObject;obj.transform.parent = currLevelData.transform;obj.transform.position = Vector3.zero;Selection.activeGameObject = obj;mode = 0;}}}}public void ResetPiece(){foreach (var item in allPieces){pool.Release(item.Value);}allPieces.Clear();}void DrawFile(){scrollPos = GUILayout.BeginScrollView(scrollPos, widthSetting, GUILayout.Height(200));for (int i = dataNames.Count - 1; i >= 0; i--){var item = dataNames[i];GUILayout.BeginHorizontal();if (currLevelData != null && currLevelData.name == item){GUI.backgroundColor = Color.green;}if (GUILayout.Button(item)){if (currLevelData != null){if (item == currLevelData.name){return;}else{ClearObj();}}levelName = item;isNewFile = false;// 加载预制体并实例化var obj = PrefabUtility.InstantiatePrefab(AssetDatabase.LoadAssetAtPath<GameObject>(GetPath(item))) as GameObject;currLevelData = obj.GetComponent<SpecialLevelData>();var childs = currLevelData.Pieces;foreach (var child in childs){InnerLay(child);}}GUI.backgroundColor = Color.white;if (GUILayout.Button("删除")){// 检查文件是否存在// 删除预制体文件if (item == levelName){ClearObj();}bool success = AssetDatabase.DeleteAsset(GetPath(item));if (success){Debug.Log($"Prefab at {item} deleted successfully.");dataNames.Remove(item);}else{Debug.LogError($"Failed to delete prefab at {item}.");}}GUILayout.EndHorizontal();}GUILayout.EndScrollView();levelName = GUILayout.TextField(levelName, widthSetting, heightSetting);GUILayout.BeginHorizontal(widthSetting, heightSetting);if (GUILayout.Button("新建文件")){if (string.IsNullOrEmpty(levelName)) return;Save();var obj = new GameObject();currLevelData = obj.AddComponent<SpecialLevelData>();obj.name = levelName;isNewFile = true;//            var prefabPath = GetPath(levelName);//#if UNITY_EDITOR//           //#endif}if (GUILayout.Button("保存文件")){Save();}GUILayout.EndHorizontal();}void DrawRightUp(SceneView sceneView){// 动态计算右上角的位置Vector2 windowSize = new Vector2(sceneView.position.width, sceneView.position.height);Vector2 padding = new Vector2(10, 10); // 边距Vector2 size = new Vector2(150, 40 * 9);  // UI 的宽高Rect rect = new Rect(windowSize.x - size.x - padding.x, // X 坐标：窗口宽度 - UI 宽度 - 边距padding.y,                         // Y 坐标：直接使用顶部边距size.x,size.y);// 绘制背景框GUI.Box(rect, GUIContent.none);// 使用 GUILayout 自动布局内部内容GUILayout.BeginArea(rect);GUILayout.Label("数字棋子", EditorStyles.boldLabel);currSelectRank = GUILayout.SelectionGrid(currSelectRank, new string[] { "1", "2", "3", "4", "5", "6", "7", "8", "9" }, 1, GUILayout.Width(120));GUILayout.Space(20);currLayMode = GUILayout.SelectionGrid(currLayMode, new string[] { "正常棋子", "墙壁", "冰封", }, 1, GUILayout.Width(120));GUILayout.EndArea();}public void DestroyItem(Vector2Int pos){//   lineRenderer.gameObject.SetActive(false);//那就进行一个移除var curSlot = allPieces[pos];allPieces.Remove(pos);pool.Release(curSlot);}void InnerLay(PieceData data){var normalize = data.LayPos;if (allPieces.ContainsKey(normalize)){//那就进行一个移除var curSlot = allPieces[normalize];allPieces.Remove(normalize);pool.Release(curSlot);}var obj = pool.Get();obj.transform.SetParent(currLevelData.transform);obj.transform.position = TransferCenterPos(data.LayPos);obj.SetRankEditor(data);allPieces.Add(data.LayPos, obj);}public void SpecialLay(PieceData data){switch ((LayMode)currLayMode){case LayMode.NormalPiece:if (currSelectRank == null) return;data.PieceType = PieceType.Piece;InnerLay(data);break;case LayMode.Wall:data.PieceType = PieceType.Wall;InnerLay(data);break;case LayMode.Ice://如果是冰就要先判断是否存在棋子，如果有棋子就赋予其状态。if (allPieces.ContainsKey(data.LayPos)){var piece = allPieces[data.LayPos];if (piece.PieceData.PieceType != PieceType.Wall){allPieces[data.LayPos].SetIceState();}}break;default:break;}}#region 对象池ObjectPool<Piece> pool;Piece CreateFunc(){var obj = GameObject.Instantiate<Piece>(LayItemPrefab, PoolObj);return obj;}void OnRelease(Piece obj){obj.transform.parent = PoolObj;obj.gameObject.SetActive(false);}void OnGet(Piece obj){obj.gameObject.SetActive(true);}#endregionpublic bool Transfer(Vector2 clickPos, out Vector2Int normalize){normalize = Vector2Int.zero;var originPosX = -(float)currWidth / 2;var originPosY = -(float)currHeight / 2;var localPos = SpriteRenderer.transform.InverseTransformPoint(clickPos);var offsetX = localPos.x - originPosX;var offsetY = localPos.y - originPosY;//获得相对于左下角的坐标之后再来进行判断var cellX = Mathf.FloorToInt(offsetX);var cellY = Mathf.FloorToInt(offsetY);var realX = cellX + 0.5f;var realY = cellY + 0.5f;if (cellX >= currWidth || cellX < 0) { return false; }if (cellY >= currHeight || cellY < 0) { return false; }normalize = new Vector2Int(cellX, cellY);return true;}public Vector3 TransferCenterPos(Vector2Int centerPos){var originPosX = -(float)currWidth / 2;var originPosY = -(float)currHeight / 2;var realX = centerPos.x + 0.5f;var realY = centerPos.y + 0.5f;// Debug.Log($"{realX}_{realY}");var temp = new Vector2(realX + originPosX, realY + originPosY);//判断完成之后再转回世界坐标var pos = SpriteRenderer.transform.TransformPoint(temp);return pos;}void DrawRightBottom(SceneView sceneView){// 计算 UI 的位置（右下角）int width = 120; // UI 宽度int height = 180; // UI 高度int padding = 20; // 边距Rect rect = new Rect(sceneView.position.width - width - padding,sceneView.position.height - height - padding,width,height);// 绘制背景框GUI.Box(rect, GUIContent.none);// 绘制内容GUILayout.BeginArea(rect);GUILayout.Label("模式转换", EditorStyles.boldLabel);var val = GUILayout.SelectionGrid(mode, new string[] { "自由模式", "棋子模式", }, 1, widthSetting, GUILayout.Height(60));mode = val;if (GUILayout.Button("清空棋盘")){ClearObj();}// DrawSpecialTool();GUILayout.EndArea();}private void HandleClick(SceneView sceneView){if (mode != 1) return;Event e = Event.current;if (e.type == EventType.MouseDown && e.button == 0) // 左键点击{// 获取鼠标点击的屏幕坐标，转换为世界空间中的射线Ray ray = HandleUtility.GUIPointToWorldRay(e.mousePosition);RaycastHit hit;// 使用射线检测场景中的物体if (Physics.Raycast(ray, out hit)){if (hit.collider.gameObject != SpriteRenderer.gameObject) { return; }// 打印点击的位置（世界空间坐标）Debug.Log("Clicked on object at position: " + hit.point);if (Transfer(hit.point, out var normalize)){var data = new PieceData() { LayPos = normalize, Rank = currSelectRank + 1 };SpecialLay(data);Selection.activeGameObject = null;e.Use();}}else{Debug.Log("No hit detected.");}}if (e.type == EventType.MouseDown && e.button == 1) // 左键点击{// 获取鼠标点击的屏幕坐标，转换为世界空间中的射线Ray ray = HandleUtility.GUIPointToWorldRay(e.mousePosition);RaycastHit hit;// 使用射线检测场景中的物体if (Physics.Raycast(ray, out hit)){if (hit.collider.gameObject == SpriteRenderer.gameObject){// 打印点击的位置（世界空间坐标）Debug.Log("Clicked on object at position: " + hit.point);if (Transfer(hit.point, out var normalize)){if (allPieces.ContainsKey(normalize)){DestroyItem(normalize);e.Use();}}}}else{Debug.Log("No hit detected.");}}}
}