-----------------------------------------------------------------------
-- Ada Labs --
-- --
-- Copyright (C) 2008-2023, AdaCore --
-- --
-- This program is free software: you can redistribute it and/or --
-- modify it under the terms of the GNU General Public License as --
-- published by the Free Software Foundation, either version 3 of --
-- the License, or (at your option) any later version. --
-- --
-- This program is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the --
-- GNU General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this program. If not, see --
-- <https://www.gnu.org/licenses/>. --
-----------------------------------------------------------------------
with Ada.Real_Time; use Ada.Real_Time;
with Mage; use Mage;
with Mage.Draw; use Mage.Draw;
with Mage.Event; use Mage.Event;
with Solar_System; use Solar_System;
with Solar_System.Graphics; use Solar_System.Graphics;
procedure Multiple_Inheritance_Main is
S : constant access Visible_Solar_System_T :=
Create_Visible (Create_Solar_System);
Next : Time;
Period : constant Time_Span := Milliseconds (40);
Window : Window_ID;
Canvas : Canvas_ID;
Sun : access Still_Body_I'Class;
Black_Hole : access Orbiting_Body_I'Class;
begin
-- create the main window
Window :=
Create_Window (Width => 240, Height => 320, Name => "Solar System");
-- retrieve the graphical canvas associated with the main window
Canvas := Get_Canvas (Window);
Sun := Create_Visible (Create_Still (0.0, 0.0), 20.0, Yellow);
S.Add_Still_Body (Sun);
S.Add_Moving_Body
(Create_Visible
(B =>
Create_Orbiting
(Distance => 50.0, Speed => 0.02, Angle => 0.0,
Turns_Around => Sun),
Radius => 5.0, Color => Blue));
Black_Hole :=
Create_Orbiting
(Distance => 70.0, Speed => 0.01, Angle => 0.0, Turns_Around => Sun);
S.Add_Moving_Body (Black_Hole);
S.Add_Moving_Body
(Create_Visible
(B =>
Create_Orbiting
(Distance => 8.0, Speed => 0.1, Angle => 0.0,
Turns_Around => Black_Hole),
Radius => 1.0, Color => Red));
S.Add_Moving_Body
(Create_Visible
(B =>
Create_Orbiting
(Distance => 12.0, Speed => -0.1, Angle => 0.0,
Turns_Around => Black_Hole),
Radius => 1.0, Color => Red));
Next := Clock + Period;
while not Is_Killed loop
S.Move;
S.Draw (Canvas);
Handle_Events (Window);
delay until Next;
Next := Next + Period;
end loop;
end Multiple_Inheritance_Main;