129 lines
4.0 KiB
Ada
129 lines
4.0 KiB
Ada
with
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openGL.Geometry.lit_textured,
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openGL.Primitive.indexed,
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openGL.Texture.Coordinates;
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package body openGL.Model.polygon.lit_textured
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is
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---------
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--- Forge
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--
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function new_polygon (vertex_Sites : in Vector_2_array;
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texture_Details : in texture_Set.item) return View
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is
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Self : constant View := new Item;
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begin
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Self.vertex_Sites (1 .. vertex_Sites'Length) := vertex_Sites;
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Self.vertex_Count := vertex_Sites'Length;
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Self.texture_Details_is (texture_Details);
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return Self;
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end new_polygon;
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--------------------
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--- to_GL_Geometries
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--
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overriding
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function to_GL_Geometries (Self : access Item; Textures : access Texture.name_Map_of_texture'Class;
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Fonts : in Font.font_id_Map_of_font) return Geometry.views
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is
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pragma unreferenced (Fonts);
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use Geometry,
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Geometry.lit_textured,
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Texture;
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the_Sites : Vector_2_array renames Self.vertex_Sites (1 .. Self.vertex_Count);
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function new_Geometry (Vertices : in geometry.lit_textured.Vertex_array) return Geometry.lit_textured.view
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is
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use Primitive,
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texture_Set;
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function the_Indices return Indices
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is
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Result : Indices (1 .. the_Sites'Length);
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begin
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for i in Result'Range
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loop
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Result (i) := Index_t (i);
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end loop;
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return Result;
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end the_Indices;
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the_Geometry : constant Geometry.lit_textured.view
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:= Geometry.lit_textured.new_Geometry;
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the_Primitive : constant Primitive.indexed.view
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:= Primitive.indexed.new_Primitive (triangle_Fan, the_Indices);
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Id : texture_Set.texture_Id;
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begin
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the_Geometry.Model_is (Self.all'unchecked_Access);
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the_Geometry.Vertices_are (Vertices);
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the_Geometry.add (Primitive.view (the_Primitive));
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for i in 1 .. Self.texture_Details.Count
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loop
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Id := texture_Id (i);
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-- the_Geometry.Fade_is (Which => Id,
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-- Now => Self.texture_Details.Fades (Id));
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the_Geometry.Texture_is (Which => Id,
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Now => Textures.fetch (Self.texture_Details.Details (i).Texture));
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the_Geometry.is_Transparent (Now => the_Geometry.Texture.is_Transparent);
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end loop;
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the_Geometry.is_Transparent (True); -- TODO: Do transparency properly.
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return the_Geometry;
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end new_Geometry;
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face_Geometry : Geometry.lit_textured.view;
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begin
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-- Geometry
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--
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declare
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use openGL.Texture.Coordinates;
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the_Vertices : Geometry.lit_textured.Vertex_array (1 .. the_Sites'Length + 1);
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Coords_and_Centroid : constant Coords_2D_and_Centroid := to_Coordinates (the_Sites);
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begin
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for i in the_Sites'Range
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loop
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the_Vertices (Index_t (i)) := (Site => Vector_3 (the_Sites (i) & 0.0),
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Normal => Normal,
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Coords => (Coords_and_Centroid.Coords (Index_t (i)).S,
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Coords_and_Centroid.Coords (Index_t (i)).T),
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Shine => default_Shine);
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end loop;
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the_Vertices (the_Vertices'Last) := (Site => Vector_3 (Coords_and_Centroid.Centroid & 0.0),
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Normal => Normal,
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Coords => (S => 0.5,
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T => 0.5),
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Shine => default_Shine);
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face_Geometry := new_Geometry (Vertices => the_Vertices);
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end;
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return [1 => face_Geometry.all'Access];
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end to_GL_Geometries;
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end openGL.Model.polygon.lit_textured;
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