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/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   IFileStream in(filename);
 131
 132   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 133                           filename.c_str(), SQTrue)))
 134     throw SquirrelError(vm, "Couldn't parse script");
 135
 136   sq_pushroottable(vm);
 137   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 138     sq_pop(vm, 1);
 139     throw SquirrelError(vm, "Couldn't execute script");
 140   }
 141   sq_pop(vm, 1);
 142 }
 143
 144 void debug_collrects(bool enable)
 145 {
 146   Sector::show_collrects = enable;
 147 }
 148
 149 void debug_show_fps(bool enable)
 150 {
 151   g_config->show_fps = enable;
 152 }
 153
 154 void debug_draw_solids_only(bool enable)
 155 {
 156   Sector::draw_solids_only = enable;
 157 }
 158
 159 void debug_draw_editor_images(bool enable)
 160 {
 161   Tile::draw_editor_images = enable;
 162 }
 163
 164 void debug_worldmap_ghost(bool enable)
 165 {
 166   using namespace worldmap;
 167
 168   if(WorldMap::current() == NULL)
 169     throw std::runtime_error("Can't change ghost mode without active WorldMap");
 170
 171   WorldMap::current()->get_tux()->set_ghost_mode(enable);
 172 }
 173
 174 void save_state()
 175 {
 176   using worldmap::WorldMap;
 177
 178   if (!WorldMap::current())
 179   {
 180     throw std::runtime_error("Can't save state without active Worldmap");
 181   }
 182   else
 183   {
 184     WorldMap::current()->save_state();
 185   }
 186 }
 187
 188 // not added to header, function to only be used by others
 189 // in this file
 190 bool validate_sector_player()
 191 {
 192   if (Sector::current() == 0)
 193   {
 194     log_info << "No current sector." << std::endl;
 195     return false;
 196   }
 197
 198   if (Sector::current()->player == 0)
 199   {
 200     log_info << "No player." << std::endl;
 201     return false;
 202   }
 203   return true;
 204 }
 205
 206 void play_music(const std::string& filename)
 207 {
 208   SoundManager::current()->play_music(filename);
 209 }
 210
 211 void play_sound(const std::string& filename)
 212 {
 213   SoundManager::current()->play(filename);
 214 }
 215
 216 void grease()
 217 {
 218   if (!validate_sector_player()) return;
 219   ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
 220   tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
 221 }
 222
 223 void invincible()
 224 {
 225   if (!validate_sector_player()) return;
 226   ::Player* tux = Sector::current()->player;
 227   tux->invincible_timer.start(10000);
 228 }
 229
 230 void ghost()
 231 {
 232   if (!validate_sector_player()) return;
 233   ::Player* tux = Sector::current()->player;
 234   tux->set_ghost_mode(true);
 235 }
 236
 237 void mortal()
 238 {
 239   if (!validate_sector_player()) return;
 240   ::Player* tux = Sector::current()->player;
 241   tux->invincible_timer.stop();
 242   tux->set_ghost_mode(false);
 243 }
 244
 245 void restart()
 246 {
 247   if (GameSession::current() == 0)
 248   {
 249     log_info << "No game session" << std::endl;
 250     return;
 251   }
 252   GameSession::current()->restart_level();
 253 }
 254
 255 void whereami()
 256 {
 257   if (!validate_sector_player()) return;
 258   ::Player* tux = Sector::current()->player;
 259   log_info << "You are at x " << ((int) tux->get_pos().x) << ", y " << ((int) tux->get_pos().y) << std::endl;
 260 }
 261
 262 void gotoend()
 263 {
 264   if (!validate_sector_player()) return;
 265   ::Player* tux = Sector::current()->player;
 266   tux->move(Vector(
 267               (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
 268   Sector::current()->camera->reset(
 269     Vector(tux->get_pos().x, tux->get_pos().y));
 270 }
 271
 272 void camera()
 273 {
 274   if (!validate_sector_player()) return;
 275   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 276 }
 277
 278 void set_gamma(float gamma)
 279 {
 280   VideoSystem::current()->get_renderer().set_gamma(gamma);
 281 }
 282
 283 void quit()
 284 {
 285   ScreenManager::current()->quit();
 286 }
 287
 288 int rand()
 289 {
 290   return gameRandom.rand();
 291 }
 292
 293 void set_game_speed(float speed)
 294 {
 295   ::g_game_speed = speed;
 296 }
 297
 298 void record_demo(const std::string& filename)
 299 {
 300   if (GameSession::current() == 0)
 301   {
 302     log_info << "No game session" << std::endl;
 303     return;
 304   }
 305   GameSession::current()->restart_level();
 306   GameSession::current()->record_demo(filename);
 307 }
 308
 309 void play_demo(const std::string& filename)
 310 {
 311   if (GameSession::current() == 0)
 312   {
 313     log_info << "No game session" << std::endl;
 314     return;
 315   }
 316   // Reset random seed
 317   g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
 318   g_config->random_seed = gameRandom.srand(g_config->random_seed);
 319   GameSession::current()->restart_level();
 320   GameSession::current()->play_demo(filename);
 321 }
 322
 323 }
 324
 325 /* EOF */