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 "worldmap/tux.hpp"
  37
  38 #include "scripting/squirrel_util.hpp"
  39 #include "scripting/time_scheduler.hpp"
  40
  41 namespace scripting {
  42
  43 SQInteger display(HSQUIRRELVM vm)
  44 {
  45   Console::output << squirrel2string(vm, -1) << std::endl;
  46   return 0;
  47 }
  48
  49 void print_stacktrace(HSQUIRRELVM vm)
  50 {
  51   print_squirrel_stack(vm);
  52 }
  53
  54 SQInteger get_current_thread(HSQUIRRELVM vm)
  55 {
  56   sq_pushobject(vm, vm_to_object(vm));
  57   return 1;
  58 }
  59
  60 void wait(HSQUIRRELVM vm, float seconds)
  61 {
  62   TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
  63 }
  64
  65 void wait_for_screenswitch(HSQUIRRELVM vm)
  66 {
  67   g_screen_manager->m_waiting_threads.add(vm);
  68 }
  69
  70 void exit_screen()
  71 {
  72   g_screen_manager->pop_screen();
  73 }
  74
  75 void fadeout_screen(float seconds)
  76 {
  77   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>(new FadeOut(seconds)));
  78 }
  79
  80 void shrink_screen(float dest_x, float dest_y, float seconds)
  81 {
  82   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>(new ShrinkFade(Vector(dest_x, dest_y), seconds)));
  83 }
  84
  85 void abort_screenfade()
  86 {
  87   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>());
  88 }
  89
  90 std::string translate(const std::string& text)
  91 {
  92   return dictionary_manager->get_dictionary().translate(text);
  93 }
  94
  95 void display_text_file(const std::string& filename)
  96 {
  97   g_screen_manager->push_screen(std::unique_ptr<Screen>(new TextScroller(filename)));
  98 }
  99
 100 void load_worldmap(const std::string& filename)
 101 {
 102   using namespace worldmap;
 103
 104   if(World::current() == NULL)
 105     throw std::runtime_error("Can't start WorldMap without active world.");
 106
 107   g_screen_manager->push_screen(std::unique_ptr<Screen>(new WorldMap(filename, World::current()->get_player_status())));
 108 }
 109
 110 void load_level(const std::string& filename)
 111 {
 112   if(GameSession::current() == NULL)
 113     throw std::runtime_error("Can't start level without active level.");
 114
 115   g_screen_manager->push_screen(std::unique_ptr<Screen>(new GameSession(filename, GameSession::current()->get_player_status())));
 116 }
 117
 118 void import(HSQUIRRELVM vm, const std::string& filename)
 119 {
 120   IFileStream in(filename);
 121
 122   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 123                           filename.c_str(), SQTrue)))
 124     throw SquirrelError(vm, "Couldn't parse script");
 125
 126   sq_pushroottable(vm);
 127   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 128     sq_pop(vm, 1);
 129     throw SquirrelError(vm, "Couldn't execute script");
 130   }
 131   sq_pop(vm, 1);
 132 }
 133
 134 void debug_collrects(bool enable)
 135 {
 136   Sector::show_collrects = enable;
 137 }
 138
 139 void debug_show_fps(bool enable)
 140 {
 141   g_config->show_fps = enable;
 142 }
 143
 144 void debug_draw_solids_only(bool enable)
 145 {
 146   Sector::draw_solids_only = enable;
 147 }
 148
 149 void debug_draw_editor_images(bool enable)
 150 {
 151   Tile::draw_editor_images = enable;
 152 }
 153
 154 void debug_worldmap_ghost(bool enable)
 155 {
 156   using namespace worldmap;
 157
 158   if(WorldMap::current() == NULL)
 159     throw std::runtime_error("Can't change ghost mode without active WorldMap");
 160
 161   WorldMap::current()->get_tux()->set_ghost_mode(enable);
 162 }
 163
 164 void save_state()
 165 {
 166   using namespace worldmap;
 167
 168   if(World::current() == NULL || WorldMap::current() == NULL)
 169     throw std::runtime_error("Can't save state without active World");
 170
 171   WorldMap::current()->save_state();
 172   World::current()->save_state();
 173 }
 174
 175 void update_worldmap()
 176 {
 177   using namespace worldmap;
 178
 179   if(WorldMap::current() == NULL)
 180     throw std::runtime_error("Can't update Worldmap: none active");
 181
 182   WorldMap::current()->load_state();
 183 }
 184
 185 // not added to header, function to only be used by others
 186 // in this file
 187 bool validate_sector_player()
 188 {
 189   if (Sector::current() == 0)
 190   {
 191     log_info << "No current sector." << std::endl;
 192     return false;
 193   }
 194
 195   if (Sector::current()->player == 0)
 196   {
 197     log_info << "No player." << std::endl;
 198     return false;
 199   }
 200   return true;
 201 }
 202
 203 void play_music(const std::string& filename)
 204 {
 205   sound_manager->play_music(filename);
 206 }
 207
 208 void play_sound(const std::string& filename)
 209 {
 210   sound_manager->play(filename);
 211 }
 212
 213 void grease()
 214 {
 215   if (!validate_sector_player()) return;
 216   ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
 217   tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
 218 }
 219
 220 void invincible()
 221 {
 222   if (!validate_sector_player()) return;
 223   ::Player* tux = Sector::current()->player;
 224   tux->invincible_timer.start(10000);
 225 }
 226
 227 void ghost()
 228 {
 229   if (!validate_sector_player()) return;
 230   ::Player* tux = Sector::current()->player;
 231   tux->set_ghost_mode(true);
 232 }
 233
 234 void mortal()
 235 {
 236   if (!validate_sector_player()) return;
 237   ::Player* tux = Sector::current()->player;
 238   tux->invincible_timer.stop();
 239   tux->set_ghost_mode(false);
 240 }
 241
 242 void restart()
 243 {
 244   if (GameSession::current() == 0)
 245   {
 246     log_info << "No game session" << std::endl;
 247     return;
 248   }
 249   GameSession::current()->restart_level();
 250 }
 251
 252 void whereami()
 253 {
 254   if (!validate_sector_player()) return;
 255   ::Player* tux = Sector::current()->player;
 256   log_info << "You are at x " << ((int) tux->get_pos().x) << ", y " << ((int) tux->get_pos().y) << std::endl;
 257 }
 258
 259 void gotoend()
 260 {
 261   if (!validate_sector_player()) return;
 262   ::Player* tux = Sector::current()->player;
 263   tux->move(Vector(
 264               (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
 265   Sector::current()->camera->reset(
 266     Vector(tux->get_pos().x, tux->get_pos().y));
 267 }
 268
 269 void camera()
 270 {
 271   if (!validate_sector_player()) return;
 272   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 273 }
 274
 275 void set_gamma(float gamma)
 276 {
 277   Renderer::instance()->set_gamma(gamma);
 278 }
 279
 280 void quit()
 281 {
 282   g_screen_manager->quit();
 283 }
 284
 285 int rand()
 286 {
 287   return gameRandom.rand();
 288 }
 289
 290 void set_game_speed(float speed)
 291 {
 292   ::g_game_speed = speed;
 293 }
 294
 295 void record_demo(const std::string& filename)
 296 {
 297   if (GameSession::current() == 0)
 298   {
 299     log_info << "No game session" << std::endl;
 300     return;
 301   }
 302   GameSession::current()->restart_level();
 303   GameSession::current()->record_demo(filename);
 304 }
 305
 306 void play_demo(const std::string& filename)
 307 {
 308   if (GameSession::current() == 0)
 309   {
 310     log_info << "No game session" << std::endl;
 311     return;
 312   }
 313   // Reset random seed
 314   g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
 315   g_config->random_seed = gameRandom.srand(g_config->random_seed);
 316   GameSession::current()->restart_level();
 317   GameSession::current()->play_demo(filename);
 318 }
 319
 320 }
 321
 322 /* EOF */