Add initial prototype.

4-high/gel/source/applet/gel-applet-gui_world.ads

@@ -0,0 +1,41 @@
+with
+     gel.World,
+     gel.Camera,
+     gel.Window;
+
+
+package gel.Applet.gui_world
+--
+--  Provides a gel applet configured with a single window and a single GUI world.
+--
+is
+   type Item is new gel.Applet.item with private;
+   type View is access all Item'Class;
+
+
+   package Forge
+   is
+      function new_Applet (Name       : in String;
+                           use_Window : in gel.Window.view;
+                           space_Kind : in physics.space_Kind) return gel.Applet.gui_world.view;
+   end Forge;
+
+   procedure free (Self : in out View);
+
+
+   gui_world_Id  : constant  world_Id := 1;
+   gui_camera_Id : constant camera_Id := 1;
+
+   function gui_World  (Self : in Item) return gel.World .view;
+   function gui_Camera (Self : in Item) return gel.Camera.view;
+
+
+
+private
+
+   type Item is new gel.Applet.item with
+      record
+         null;
+      end record;
+
+end gel.Applet.gui_world;