src/scripting/functions.cpp

   1 //  SuperTux
   2 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   3 //
   4 //  This program is free software: you can redistribute it and/or modify
   5 //  it under the terms of the GNU General Public License as published by
   6 //  the Free Software Foundation, either version 3 of the License, or
   7 //  (at your option) any later version.
   8 //
   9 //  This program is distributed in the hope that it will be useful,
  10 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 //  GNU General Public License for more details.
  13 //
  14 //  You should have received a copy of the GNU General Public License
  15 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "scripting/functions.hpp"
  18
  19 #include "audio/sound_manager.hpp"
  20 #include "math/random_generator.hpp"
  21 #include "object/camera.hpp"
  22 #include "object/player.hpp"
  23 #include "physfs/buffered_ifile_stream.hpp"
  24 #include "supertux/fadeout.hpp"
  25 #include "supertux/game_session.hpp"
  26 #include "supertux/gameconfig.hpp"
  27 #include "supertux/globals.hpp"
  28 #include "supertux/screen_manager.hpp"
  29 #include "supertux/sector.hpp"
  30 #include "supertux/shrinkfade.hpp"
  31 #include "supertux/textscroller.hpp"
  32 #include "supertux/tile.hpp"
  33 #include "supertux/world.hpp"
  34 #include "util/gettext.hpp"
  35 #include "video/renderer.hpp"
  36 #include "video/video_system.hpp"
  37 #include "worldmap/tux.hpp"
  38 #include "worldmap/worldmap.hpp"
  39
  40 #include "scripting/squirrel_util.hpp"
  41 #include "scripting/time_scheduler.hpp"
  42
  43 namespace scripting {
  44
  45 SQInteger display(HSQUIRRELVM vm)
  46 {
  47   ConsoleBuffer::output << squirrel2string(vm, -1) << std::endl;
  48   return 0;
  49 }
  50
  51 void print_stacktrace(HSQUIRRELVM vm)
  52 {
  53   print_squirrel_stack(vm);
  54 }
  55
  56 SQInteger get_current_thread(HSQUIRRELVM vm)
  57 {
  58   sq_pushobject(vm, vm_to_object(vm));
  59   return 1;
  60 }
  61
  62 void wait(HSQUIRRELVM vm, float seconds)
  63 {
  64   TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
  65 }
  66
  67 void wait_for_screenswitch(HSQUIRRELVM vm)
  68 {
  69   ScreenManager::current()->m_waiting_threads.add(vm);
  70 }
  71
  72 void exit_screen()
  73 {
  74   ScreenManager::current()->pop_screen();
  75 }
  76
  77 void fadeout_screen(float seconds)
  78 {
  79   ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>(new FadeOut(seconds)));
  80 }
  81
  82 void shrink_screen(float dest_x, float dest_y, float seconds)
  83 {
  84   ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>(new ShrinkFade(Vector(dest_x, dest_y), seconds)));
  85 }
  86
  87 void abort_screenfade()
  88 {
  89   ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>());
  90 }
  91
  92 std::string translate(const std::string& text)
  93 {
  94   return g_dictionary_manager->get_dictionary().translate(text);
  95 }
  96
  97 void display_text_file(const std::string& filename)
  98 {
  99   ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new TextScroller(filename)));
 100 }
 101
 102 void load_worldmap(const std::string& filename)
 103 {
 104   using namespace worldmap;
 105
 106   if (!WorldMap::current())
 107   {
 108     throw std::runtime_error("Can't start Worldmap without active WorldMap");
 109   }
 110   else
 111   {
 112     ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new WorldMap(filename, WorldMap::current()->get_savegame())));
 113   }
 114 }
 115
 116 void load_level(const std::string& filename)
 117 {
 118   if (!GameSession::current())
 119   {
 120     throw std::runtime_error("Can't start level without active level.");
 121   }
 122   else
 123   {
 124     ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new GameSession(filename, GameSession::current()->get_savegame())));
 125   }
 126 }
 127
 128 void import(HSQUIRRELVM vm, const std::string& filename)
 129 {
 130   BufferedIFileStream* stream = new BufferedIFileStream(filename);
 131   IFileStream* in = stream->get_stream();
 132
 133   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 134                           filename.c_str(), SQTrue)))
 135     throw SquirrelError(vm, "Couldn't parse script");
 136
 137   sq_pushroottable(vm);
 138   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 139     sq_pop(vm, 1);
 140     throw SquirrelError(vm, "Couldn't execute script");
 141   }
 142   sq_pop(vm, 1);
 143 }
 144
 145 void debug_collrects(bool enable)
 146 {
 147   Sector::show_collrects = enable;
 148 }
 149
 150 void debug_show_fps(bool enable)
 151 {
 152   g_config->show_fps = enable;
 153 }
 154
 155 void debug_draw_solids_only(bool enable)
 156 {
 157   Sector::draw_solids_only = enable;
 158 }
 159
 160 void debug_draw_editor_images(bool enable)
 161 {
 162   Tile::draw_editor_images = enable;
 163 }
 164
 165 void debug_worldmap_ghost(bool enable)
 166 {
 167   using namespace worldmap;
 168
 169   if(WorldMap::current() == NULL)
 170     throw std::runtime_error("Can't change ghost mode without active WorldMap");
 171
 172   WorldMap::current()->get_tux()->set_ghost_mode(enable);
 173 }
 174
 175 void save_state()
 176 {
 177   using worldmap::WorldMap;
 178
 179   if (!WorldMap::current())
 180   {
 181     throw std::runtime_error("Can't save state without active Worldmap");
 182   }
 183   else
 184   {
 185     WorldMap::current()->save_state();
 186   }
 187 }
 188
 189 // not added to header, function to only be used by others
 190 // in this file
 191 bool validate_sector_player()
 192 {
 193   if (Sector::current() == 0)
 194   {
 195     log_info << "No current sector." << std::endl;
 196     return false;
 197   }
 198
 199   if (Sector::current()->player == 0)
 200   {
 201     log_info << "No player." << std::endl;
 202     return false;
 203   }
 204   return true;
 205 }
 206
 207 void play_music(const std::string& filename)
 208 {
 209   SoundManager::current()->play_music(filename);
 210 }
 211
 212 void play_sound(const std::string& filename)
 213 {
 214   SoundManager::current()->play(filename);
 215 }
 216
 217 void grease()
 218 {
 219   if (!validate_sector_player()) return;
 220   ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
 221   tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
 222 }
 223
 224 void invincible()
 225 {
 226   if (!validate_sector_player()) return;
 227   ::Player* tux = Sector::current()->player;
 228   tux->invincible_timer.start(10000);
 229 }
 230
 231 void ghost()
 232 {
 233   if (!validate_sector_player()) return;
 234   ::Player* tux = Sector::current()->player;
 235   tux->set_ghost_mode(true);
 236 }
 237
 238 void mortal()
 239 {
 240   if (!validate_sector_player()) return;
 241   ::Player* tux = Sector::current()->player;
 242   tux->invincible_timer.stop();
 243   tux->set_ghost_mode(false);
 244 }
 245
 246 void restart()
 247 {
 248   if (GameSession::current() == 0)
 249   {
 250     log_info << "No game session" << std::endl;
 251     return;
 252   }
 253   GameSession::current()->restart_level();
 254 }
 255
 256 void whereami()
 257 {
 258   if (!validate_sector_player()) return;
 259   ::Player* tux = Sector::current()->player;
 260   log_info << "You are at x " << ((int) tux->get_pos().x) << ", y " << ((int) tux->get_pos().y) << std::endl;
 261 }
 262
 263 void gotoend()
 264 {
 265   if (!validate_sector_player()) return;
 266   ::Player* tux = Sector::current()->player;
 267   tux->move(Vector(
 268               (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
 269   Sector::current()->camera->reset(
 270     Vector(tux->get_pos().x, tux->get_pos().y));
 271 }
 272
 273 void camera()
 274 {
 275   if (!validate_sector_player()) return;
 276   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 277 }
 278
 279 void set_gamma(float gamma)
 280 {
 281   VideoSystem::current()->get_renderer().set_gamma(gamma);
 282 }
 283
 284 void quit()
 285 {
 286   ScreenManager::current()->quit();
 287 }
 288
 289 int rand()
 290 {
 291   return gameRandom.rand();
 292 }
 293
 294 void set_game_speed(float speed)
 295 {
 296   ::g_game_speed = speed;
 297 }
 298
 299 void record_demo(const std::string& filename)
 300 {
 301   if (GameSession::current() == 0)
 302   {
 303     log_info << "No game session" << std::endl;
 304     return;
 305   }
 306   GameSession::current()->restart_level();
 307   GameSession::current()->record_demo(filename);
 308 }
 309
 310 void play_demo(const std::string& filename)
 311 {
 312   if (GameSession::current() == 0)
 313   {
 314     log_info << "No game session" << std::endl;
 315     return;
 316   }
 317   // Reset random seed
 318   g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
 319   g_config->random_seed = gameRandom.srand(g_config->random_seed);
 320   GameSession::current()->restart_level();
 321   GameSession::current()->play_demo(filename);
 322 }
 323
 324 }
 325
 326 /* EOF */