Start demon wall implementation

Zennysoft.Game.Ma/src/map/dungeon/code/BossRoomB.cs

@@ -0,0 +1,23 @@
+using Chickensoft.AutoInject;
+using Chickensoft.Introspection;
+using Godot;
+
+namespace Zennysoft.Game.Ma;
+
+[Meta(typeof(IAutoNode))]
+public partial class BossRoomB : Node3D, IBossRoom
+{
+  public override void _Notification(int what) => this.Notify(what);
+
+  [Node] public Marker3D PlayerSpawn { get; set; } = default!;
+
+  public void OnBossFightEnded()
+  {
+
+  }
+
+  public void StartBossFight()
+  {
+
+  }
+}