Add initial prototype.

3-mid/opengl/source/lean/model/opengl-model-box-lit_textured.ads

@@ -0,0 +1,49 @@
+with
+     openGL.Geometry,
+     openGL.Font;
+
+
+package openGL.Model.Box.lit_textured
+--
+--  Models a lit and textured box.
+--
+--  Each face may have a separate texture.
+--
+is
+   type Item is new Model.box.item with private;
+   type View is access all Item'Class;
+
+
+   type Face is
+      record
+         texture_Name : asset_Name := null_Asset;   -- The texture applied to the face.
+      end record;
+
+   type Faces is array (Side) of Face;
+
+
+   ---------
+   --- Forge
+   --
+
+   function new_Box (Size  : in Vector_3;
+                     Faces : in lit_textured.Faces) return View;
+
+
+   --------------
+   --- Attributes
+   --
+
+   overriding
+   function to_GL_Geometries (Self : access Item;   Textures : access Texture.name_Map_of_texture'Class;
+                                                    Fonts    : in     Font.font_id_Map_of_font) return Geometry.views;
+
+
+private
+
+   type Item is new Model.box.item with
+      record
+         Faces : lit_textured.Faces;
+      end record;
+
+end openGL.Model.Box.lit_textured;