自动保存Beatmap

Assets/Scripts/Manager/ProjectManager.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
 using Ichni.Editor;
 using Ichni.RhythmGame;
 using Ichni.RhythmGame.Beatmap;
@@ -30,6 +31,7 @@ namespace Ichni
         public LoadManager loadManager;
         public ExportManager exportManager;
         public BeatmapClipManager beatmapClipManager;
+        public AutoSaveManager autoSaveManager;
 
         public ProjectManager()
         {
@@ -37,6 +39,7 @@ namespace Ichni
             loadManager = new LoadManager();
             exportManager = new ExportManager();
             beatmapClipManager = new BeatmapClipManager();
+            autoSaveManager = new AutoSaveManager();
         }
 
         public void GenerateProject(string projectName)
@@ -286,4 +289,77 @@ namespace Ichni
             clip.ForEach(e => e.ExecuteBM());
         }
     }
+
+    public class AutoSaveManager
+    {
+        private string autoSavePath => Application.streamingAssetsPath + "/AutoSave/" +
+                                      EditorManager.instance.projectInformation.projectName;
+        private string GetAutoSavePath(string autoSaveName) => autoSavePath + "/" + autoSaveName + ".json";
+        private float autoSaveInterval => EditorManager.instance.editorSettings.autoSaveInterval;
+        private int maximumAutoSaveCount => EditorManager.instance.editorSettings.maximumAutoSaveCount;
+        
+        public float autoSaveTimer;
+
+        public AutoSaveManager()
+        {
+            autoSaveTimer = 0;
+        }
+
+        public void UpdateAutoSave()
+        {
+            autoSaveTimer += Time.deltaTime;
+            if (autoSaveTimer >= autoSaveInterval)
+            {
+                AutoSave();
+                autoSaveTimer = 0;
+            }
+        }
+
+        private void AutoSave()
+        {
+            List<string> saveFiles = GetSortedSaveFiles();
+
+            if (saveFiles.Count > 0)
+            {
+                // 删除最旧的存档（如果超过数量）
+                if (saveFiles.Count >= maximumAutoSaveCount)
+                {
+                    string oldestSave = saveFiles[saveFiles.Count - 1];
+                    File.Delete(oldestSave);
+                    saveFiles.RemoveAt(saveFiles.Count - 1);
+                }
+
+                // 依次重命名存档
+                for (int i = saveFiles.Count - 1; i >= 0; i--)
+                {
+                    string oldPath = saveFiles[i];
+                    string newPath = GetAutoSavePath($"AutoSave_{i + 1}");
+                    File.Move(oldPath, newPath);
+                }
+            }
+
+            // 保存最新存档
+            string newestSavePath = GetAutoSavePath("AutoSave_0");
+            SaveBeatMap(newestSavePath);
+        }
+        
+        private void SaveBeatMap(string autoSavePath)
+        {
+            EditorManager.instance.beatmapContainer.SaveBM();
+            ES3.Save("BeatMap", EditorManager.instance.beatmapContainer.matchedBM as BeatmapContainer_BM,
+                autoSavePath, ProjectManager.SaveSettings);
+        }
+        
+        private List<string> GetSortedSaveFiles()
+        {
+            if(!ES3.DirectoryExists(autoSavePath))
+            {
+                Directory.CreateDirectory(autoSavePath);
+            }
+            
+            List<string> saveFiles = new List<string>(Directory.GetFiles(autoSavePath, "AutoSave_*.es3"));
+            saveFiles.Sort(string.Compare);
+            return saveFiles;
+        }
+    }
 }