RPG world mod: tile maps, grid walking, map events, battles

Maps of square tiles in three layers plus a collision layer, mounted over
the 2D shell when their scene is entered. WASD walking, E/F action events,
touch teleports, story-flag conditions, random encounters, rpg.battle and
rpg.teleport actions, position saving. Integration suite rpg_walk.

src/State/RpgStateReset.cs

@@ -0,0 +1,14 @@
+using Cthangover.Core.Bootstrap;
+
+namespace Cthangover.Mods.Rpg
+{
+    /// <summary>New game: the player starts at the spawn of the entry map.</summary>
+    public class RpgStateReset : IResettable
+    {
+        /// <summary>Deduplication key in <see cref="AppServices"/>.</summary>
+        public string Id => "rpg";
+
+        /// <summary>Forgets the position.</summary>
+        public void ResetForNewGame() => RpgState.Instance.Reset();
+    }
+}