Add Godot project shell

godot/scripts/debug/SmokeSceneController.cs

@@ -0,0 +1,24 @@
+using Godot;
+
+namespace SideScrollerGame.Debug;
+
+public partial class SmokeSceneController : Node2D
+{
+    public override async void _Ready()
+    {
+        GD.Print("Smoke scene loaded");
+
+        if (!IsHeadless())
+        {
+            return;
+        }
+
+        await ToSignal(GetTree(), SceneTree.SignalName.ProcessFrame);
+        GetTree().Quit(0);
+    }
+
+    private static bool IsHeadless()
+    {
+        return DisplayServer.GetName().Equals("headless", System.StringComparison.OrdinalIgnoreCase);
+    }
+}