controller.cxx

   1 //  $Id: controller.cxx,v 1.12 2003/07/27 18:46:11 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 #include "worldview_component.hxx"
  21 #include "construo_error.hxx"
  22 #include "controller.hxx"
  23
  24 Controller* Controller::instance_ = 0;
  25
  26 Controller::Controller ()
  27 {
  28   instance_  = this;
  29   running    = false;
  30   slow_down  = false;
  31   action_cam = false;
  32   hide_dots  = false;
  33   world      = new World ();
  34 }
  35
  36 Controller::Controller (const std::string& filename)
  37 {
  38   instance_  = this;
  39   running    = false;
  40   slow_down  = false;
  41   action_cam = false;
  42   hide_dots  = false;
  43   world     = new World (filename);
  44 }
  45
  46 Controller::~Controller ()
  47 {
  48   instance_ = 0;
  49 }
  50
  51 void
  52 Controller::load_world (const std::string& filename)
  53 {
  54   if (world)
  55     undo_world_stack.push_back(world);
  56
  57   std::cout << "Loading World..." << std::endl;
  58   world = new World (filename);
  59
  60   WorldViewComponent::instance()->on_world_change();
  61
  62   running = false;
  63   std::cout << "Loading World... DONE" << std::endl;
  64 }
  65
  66 void
  67 Controller::save_world (const std::string& filename)
  68 {
  69   std::cout << "Saving World..." << std::endl;
  70   world->write_lisp (filename);
  71   std::cout << "Saving World... DONE" << std::endl;
  72 }
  73
  74
  75 std::string
  76 Controller::get_slot_filename(int n)
  77 {
  78   return "/user/" + std::string("quicksave") + char('0' + n) + ".construo";
  79 }
  80
  81 void
  82 Controller::save_to_slot (int n)
  83 {
  84   try {
  85     save_world (get_slot_filename (n));
  86   } catch (ConstruoError& err) {
  87     std::cout << "Controller: Error: " << err.msg << std::endl;
  88   }
  89 }
  90
  91 void
  92 Controller::load_from_slot (int n)
  93 {
  94   try {
  95     load_world (get_slot_filename (n));
  96   } catch (ConstruoError& err) {
  97     std::cout << "Controller: Error: " << err.msg << std::endl;
  98   }
  99 }
 100
 101 void
 102 Controller::update ()
 103 {
 104   float delta = delta_manager.getset ();
 105
 106   if (running)
 107     {
 108       float min_skip;
 109
 110       if (slow_down)
 111         {
 112           delta /= 50.0f/20.0f;
 113           min_skip = 0.0007f;
 114         }
 115       else
 116         {
 117           delta /= 5.0f/20.0f;
 118           min_skip = 0.02; // 0.02
 119         }
 120
 121       float i = 0.0f;
 122       while (i < delta)
 123         {
 124           world->update (min_skip);
 125           i += min_skip;
 126         }
 127     }
 128 }
 129
 130 void
 131 Controller::start_simulation ()
 132 {
 133   if (!running)
 134     undo_world_stack.push_back(world->duplicate());
 135
 136   if (undo_world_stack.size() > 100)
 137     {
 138       // FIXME: shrink stack here
 139       //delete *undo_world_stack.front();
 140       //std::cout << "Stak
 141     }
 142
 143   running = !running;
 144 }
 145
 146 void
 147 Controller::push_undo()
 148 {
 149   undo_world_stack.push_back(world->duplicate());
 150 }
 151
 152 void
 153 Controller::clear_world ()
 154 {
 155   std::cout << "Controller: Clear" << std::endl;
 156   undo_world_stack.push_back(world);
 157   world = new World ();
 158   running = false;
 159 }
 160
 161 void
 162 Controller::undo ()
 163 {
 164 #ifdef DEBUG
 165   std::cout << "Controller::undo (): undostack: " << undo_world_stack.size()
 166             << " redostack: " << redo_world_stack.size() << std::endl;
 167 #endif
 168
 169   if (!undo_world_stack.empty())
 170     {
 171       //delete world; // fixme: memory hole
 172       redo_world_stack.push_back (world);
 173       world = undo_world_stack.back();
 174       undo_world_stack.pop_back();
 175       running = false;
 176     }
 177   else
 178     {
 179       std::cout << "Undo stack empty" << std::endl;
 180     }
 181 }
 182
 183 void
 184 Controller::redo ()
 185 {
 186   if (!redo_world_stack.empty())
 187     {
 188       undo_world_stack.push_back (world);
 189       world = redo_world_stack.back();
 190       redo_world_stack.pop_back();
 191       running = false;
 192     }
 193   else
 194     {
 195       std::cout << "Redo stack empty" << std::endl;
 196     }
 197 }
 198
 199 void
 200 Controller::set_action_cam(bool a)
 201 {
 202   action_cam = a;
 203 }
 204
 205 bool
 206 Controller::get_action_cam()
 207 {
 208   return action_cam;
 209 }
 210
 211 void
 212 Controller::set_hide_dots (bool d)
 213 {
 214   hide_dots = d;
 215 }
 216
 217 bool
 218 Controller::get_hide_dots ()
 219 {
 220   return hide_dots;
 221 }
 222
 223 /* EOF */