feat: implement SortByInternalDifficulty

SortByInternalDifficulty/MU3.DB/patch_MusicSort1ID.cs

@@ -0,0 +1,19 @@
+using MonoMod;
+
+namespace MU3.DB;
+
+[MonoModPatch("global::MU3.DB.MusicSort1ID")]
+[MonoModEnumReplace()]
+public enum patch_MusicSort1ID {
+    Genre = 0,
+    All = 1,
+    Character = 2,
+    Version = 3,
+    Level = 4,
+    Name = 5,
+    Attribute = 6,
+    InternalLevel = 7,
+    Begin = 0,
+    End = 8,
+    Invalid = -1
+}

SortByInternalDifficulty/MU3.DB/patch_MusicSort1IDEnum.cs

@@ -0,0 +1,40 @@
+using MonoMod;
+
+namespace MU3.DB;
+
+[MonoModPatch("global::MU3.DB.MusicSort1IDEnum")]
+public static class patch_MusicSort1IDEnum {
+    private static MusicSort1TableRecord[] records;
+    public static patch_MusicSort1ID[] List;
+    public static extern bool orig_loadFromFile(string filename);
+
+    public static bool loadFromFile(string filename) {
+        var rv = orig_loadFromFile(filename);
+        records = new[] {
+            new MusicSort1TableRecord(0, "Genre", "ジャンル", 0),
+            new MusicSort1TableRecord(1, "All", "全曲", 0),
+            new MusicSort1TableRecord(2, "Character", "キャラクター", 0),
+            new MusicSort1TableRecord(3, "Version", "バージョン", 0),
+            new MusicSort1TableRecord(4, "Level", "譜面レベル", 0),
+            new MusicSort1TableRecord(5, "Name", "曲名", 0),
+            new MusicSort1TableRecord(6, "Attribute", "属性", 0),
+            new MusicSort1TableRecord(7, "InternalLevel", "インターナル", 0)
+        };
+        List = new[] {
+            patch_MusicSort1ID.Genre,
+            patch_MusicSort1ID.All,
+            patch_MusicSort1ID.Character,
+            patch_MusicSort1ID.Version,
+            patch_MusicSort1ID.Level,
+            patch_MusicSort1ID.Name,
+            patch_MusicSort1ID.Attribute,
+            patch_MusicSort1ID.InternalLevel
+        };
+        return rv;
+    }
+
+    // Not exactly sure why this is necessary
+    public static bool isValid(this patch_MusicSort1ID self) {
+        return self >= patch_MusicSort1ID.Genre && self < patch_MusicSort1ID.End;
+    }
+}