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 #include "worldmap/worldmap.hpp"
  38
  39 #include "scripting/squirrel_util.hpp"
  40 #include "scripting/time_scheduler.hpp"
  41
  42 namespace scripting {
  43
  44 SQInteger display(HSQUIRRELVM vm)
  45 {
  46   Console::output << squirrel2string(vm, -1) << std::endl;
  47   return 0;
  48 }
  49
  50 void print_stacktrace(HSQUIRRELVM vm)
  51 {
  52   print_squirrel_stack(vm);
  53 }
  54
  55 SQInteger get_current_thread(HSQUIRRELVM vm)
  56 {
  57   sq_pushobject(vm, vm_to_object(vm));
  58   return 1;
  59 }
  60
  61 void wait(HSQUIRRELVM vm, float seconds)
  62 {
  63   TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
  64 }
  65
  66 void wait_for_screenswitch(HSQUIRRELVM vm)
  67 {
  68   g_screen_manager->m_waiting_threads.add(vm);
  69 }
  70
  71 void exit_screen()
  72 {
  73   g_screen_manager->pop_screen();
  74 }
  75
  76 void fadeout_screen(float seconds)
  77 {
  78   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>(new FadeOut(seconds)));
  79 }
  80
  81 void shrink_screen(float dest_x, float dest_y, float seconds)
  82 {
  83   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>(new ShrinkFade(Vector(dest_x, dest_y), seconds)));
  84 }
  85
  86 void abort_screenfade()
  87 {
  88   g_screen_manager->set_screen_fade(std::unique_ptr<ScreenFade>());
  89 }
  90
  91 std::string translate(const std::string& text)
  92 {
  93   return dictionary_manager->get_dictionary().translate(text);
  94 }
  95
  96 void display_text_file(const std::string& filename)
  97 {
  98   g_screen_manager->push_screen(std::unique_ptr<Screen>(new TextScroller(filename)));
  99 }
 100
 101 void load_worldmap(const std::string& filename)
 102 {
 103   using namespace worldmap;
 104
 105   if (!WorldMap::current())
 106   {
 107     throw std::runtime_error("Can't start Worldmap without active WorldMap");
 108   }
 109   else
 110   {
 111     g_screen_manager->push_screen(std::unique_ptr<Screen>(new WorldMap(filename, WorldMap::current()->get_savegame())));
 112   }
 113 }
 114
 115 void load_level(const std::string& filename)
 116 {
 117   if (!GameSession::current())
 118   {
 119     throw std::runtime_error("Can't start level without active level.");
 120   }
 121   else
 122   {
 123     g_screen_manager->push_screen(std::unique_ptr<Screen>(new GameSession(filename, GameSession::current()->get_savegame())));
 124   }
 125 }
 126
 127 void import(HSQUIRRELVM vm, const std::string& filename)
 128 {
 129   IFileStream in(filename);
 130
 131   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 132                           filename.c_str(), SQTrue)))
 133     throw SquirrelError(vm, "Couldn't parse script");
 134
 135   sq_pushroottable(vm);
 136   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 137     sq_pop(vm, 1);
 138     throw SquirrelError(vm, "Couldn't execute script");
 139   }
 140   sq_pop(vm, 1);
 141 }
 142
 143 void debug_collrects(bool enable)
 144 {
 145   Sector::show_collrects = enable;
 146 }
 147
 148 void debug_show_fps(bool enable)
 149 {
 150   g_config->show_fps = enable;
 151 }
 152
 153 void debug_draw_solids_only(bool enable)
 154 {
 155   Sector::draw_solids_only = enable;
 156 }
 157
 158 void debug_draw_editor_images(bool enable)
 159 {
 160   Tile::draw_editor_images = enable;
 161 }
 162
 163 void debug_worldmap_ghost(bool enable)
 164 {
 165   using namespace worldmap;
 166
 167   if(WorldMap::current() == NULL)
 168     throw std::runtime_error("Can't change ghost mode without active WorldMap");
 169
 170   WorldMap::current()->get_tux()->set_ghost_mode(enable);
 171 }
 172
 173 void save_state()
 174 {
 175   using worldmap::WorldMap;
 176
 177   if (!WorldMap::current())
 178   {
 179     throw std::runtime_error("Can't save state without active Worldmap");
 180   }
 181   else
 182   {
 183     WorldMap::current()->save_state();
 184   }
 185 }
 186
 187 // not added to header, function to only be used by others
 188 // in this file
 189 bool validate_sector_player()
 190 {
 191   if (Sector::current() == 0)
 192   {
 193     log_info << "No current sector." << std::endl;
 194     return false;
 195   }
 196
 197   if (Sector::current()->player == 0)
 198   {
 199     log_info << "No player." << std::endl;
 200     return false;
 201   }
 202   return true;
 203 }
 204
 205 void play_music(const std::string& filename)
 206 {
 207   sound_manager->play_music(filename);
 208 }
 209
 210 void play_sound(const std::string& filename)
 211 {
 212   sound_manager->play(filename);
 213 }
 214
 215 void grease()
 216 {
 217   if (!validate_sector_player()) return;
 218   ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
 219   tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
 220 }
 221
 222 void invincible()
 223 {
 224   if (!validate_sector_player()) return;
 225   ::Player* tux = Sector::current()->player;
 226   tux->invincible_timer.start(10000);
 227 }
 228
 229 void ghost()
 230 {
 231   if (!validate_sector_player()) return;
 232   ::Player* tux = Sector::current()->player;
 233   tux->set_ghost_mode(true);
 234 }
 235
 236 void mortal()
 237 {
 238   if (!validate_sector_player()) return;
 239   ::Player* tux = Sector::current()->player;
 240   tux->invincible_timer.stop();
 241   tux->set_ghost_mode(false);
 242 }
 243
 244 void restart()
 245 {
 246   if (GameSession::current() == 0)
 247   {
 248     log_info << "No game session" << std::endl;
 249     return;
 250   }
 251   GameSession::current()->restart_level();
 252 }
 253
 254 void whereami()
 255 {
 256   if (!validate_sector_player()) return;
 257   ::Player* tux = Sector::current()->player;
 258   log_info << "You are at x " << ((int) tux->get_pos().x) << ", y " << ((int) tux->get_pos().y) << std::endl;
 259 }
 260
 261 void gotoend()
 262 {
 263   if (!validate_sector_player()) return;
 264   ::Player* tux = Sector::current()->player;
 265   tux->move(Vector(
 266               (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
 267   Sector::current()->camera->reset(
 268     Vector(tux->get_pos().x, tux->get_pos().y));
 269 }
 270
 271 void camera()
 272 {
 273   if (!validate_sector_player()) return;
 274   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 275 }
 276
 277 void set_gamma(float gamma)
 278 {
 279   Renderer::instance()->set_gamma(gamma);
 280 }
 281
 282 void quit()
 283 {
 284   g_screen_manager->quit();
 285 }
 286
 287 int rand()
 288 {
 289   return gameRandom.rand();
 290 }
 291
 292 void set_game_speed(float speed)
 293 {
 294   ::g_game_speed = speed;
 295 }
 296
 297 void record_demo(const std::string& filename)
 298 {
 299   if (GameSession::current() == 0)
 300   {
 301     log_info << "No game session" << std::endl;
 302     return;
 303   }
 304   GameSession::current()->restart_level();
 305   GameSession::current()->record_demo(filename);
 306 }
 307
 308 void play_demo(const std::string& filename)
 309 {
 310   if (GameSession::current() == 0)
 311   {
 312     log_info << "No game session" << std::endl;
 313     return;
 314   }
 315   // Reset random seed
 316   g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
 317   g_config->random_seed = gameRandom.srand(g_config->random_seed);
 318   GameSession::current()->restart_level();
 319   GameSession::current()->play_demo(filename);
 320 }
 321
 322 }
 323
 324 /* EOF */