[+] Unlock maps that are not in this version

AquaMai/Cheat/MapUnlock.cs

@@ -0,0 +1,26 @@
+using Manager.MaiStudio;
+using HarmonyLib;
+
+namespace AquaMai.Cheat
+{
+    public class MapUnlock
+    {
+        // For any map, return the event ID 1 to unlock it
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(MapData), "get_OpenEventId")]
+        public static bool get_OpenEventId(ref StringID __result)
+        {
+            var id = new Manager.MaiStudio.Serialize.StringID
+            {
+                id = 1,
+                str = "無期限常時解放"
+            };
+            
+            var sid = new StringID();
+            sid.Init(id);
+            
+            __result = sid;
+            return false;
+        }
+    }
+}