controller.hxx

   1 //  $Id: controller.hxx,v 1.6 2003/01/10 20:44:09 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction game
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #ifndef HEADER_CONSTRUO_CONTROLLER_HXX
  21 #define HEADER_CONSTRUO_CONTROLLER_HXX
  22
  23 #include "world.hxx"
  24 #include "delta_manager.hxx"
  25
  26 /** Holds all the different World states, handles undo and things like that */
  27 class Controller
  28 {
  29 private:
  30   std::vector<World*> undo_world_stack;
  31   std::vector<World*> redo_world_stack;
  32
  33   bool running;
  34   bool slow_down;
  35   bool action_cam;
  36   bool hide_dots;
  37
  38   /** The current active world, don't delete this, delet is handled in
  39       the undo stacks */
  40   World* world;
  41
  42   DeltaManager delta_manager;
  43
  44   static Controller* instance_;
  45 public:
  46   /** Create an empty world workspace */
  47   Controller ();
  48   Controller (const std::string& filename);
  49   ~Controller ();
  50
  51   static inline Controller* instance() { return instance_; }
  52
  53   bool has_been_run () { return world && world->get_has_been_run (); }
  54
  55   bool is_running () { return running; }
  56   bool slow_down_active () { return slow_down; }
  57   void set_slow_down (bool s) { slow_down = s; }
  58
  59   void set_action_cam(bool);
  60   bool get_action_cam();
  61
  62   void set_hide_dots (bool);
  63   bool get_hide_dots ();
  64
  65   World* get_world () { assert(world); return world; }
  66
  67   /** Load a world by name, name is relative to the construo user directory */
  68   void load_world (const std::string& name);
  69
  70   /** Save a world by name, name is relative to the construo user directory */
  71   void save_world (const std::string& name);
  72
  73   std::string get_slot_filename(int n);
  74   void save_to_slot (int n);
  75   void load_from_slot (int n);
  76
  77   /** Updates the state of the controller and also the world */
  78   void update ();
  79
  80   void clear_world ();
  81
  82   void undo ();
  83   void redo ();
  84
  85   /** Push the current world to the undo stack */
  86   void push_undo();
  87
  88   /** start or stops the simulation */
  89   void start_simulation ();
  90 };
  91
  92 #endif
  93
  94 /* EOF */