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/world.hpp"
  33 #include "util/gettext.hpp"
  34 #include "worldmap/tux.hpp"
  35
  36 #include "scripting/squirrel_util.hpp"
  37 #include "scripting/time_scheduler.hpp"
  38
  39 namespace scripting {
  40
  41 SQInteger display(HSQUIRRELVM vm)
  42 {
  43   Console::output << squirrel2string(vm, -1) << std::endl;
  44   return 0;
  45 }
  46
  47 void print_stacktrace(HSQUIRRELVM vm)
  48 {
  49   print_squirrel_stack(vm);
  50 }
  51
  52 SQInteger get_current_thread(HSQUIRRELVM vm)
  53 {
  54   sq_pushobject(vm, vm_to_object(vm));
  55   return 1;
  56 }
  57
  58 void wait(HSQUIRRELVM vm, float seconds)
  59 {
  60   TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
  61 }
  62
  63 void wait_for_screenswitch(HSQUIRRELVM vm)
  64 {
  65   g_screen_manager->waiting_threads.add(vm);
  66 }
  67
  68 void exit_screen()
  69 {
  70   g_screen_manager->exit_screen();
  71 }
  72
  73 void fadeout_screen(float seconds)
  74 {
  75   g_screen_manager->set_screen_fade(new FadeOut(seconds));
  76 }
  77
  78 void shrink_screen(float dest_x, float dest_y, float seconds)
  79 {
  80   g_screen_manager->set_screen_fade(new ShrinkFade(Vector(dest_x, dest_y), seconds));
  81 }
  82
  83 void abort_screenfade()
  84 {
  85   g_screen_manager->set_screen_fade(NULL);
  86 }
  87
  88 std::string translate(const std::string& text)
  89 {
  90   return dictionary_manager->get_dictionary().translate(text);
  91 }
  92
  93 void display_text_file(const std::string& filename)
  94 {
  95   g_screen_manager->push_screen(new TextScroller(filename));
  96 }
  97
  98 void load_worldmap(const std::string& filename)
  99 {
 100   using namespace worldmap;
 101
 102   if(World::current() == NULL)
 103     throw std::runtime_error("Can't start WorldMap without active world.");
 104
 105   g_screen_manager->push_screen(new WorldMap(filename, World::current()->get_player_status()));
 106 }
 107
 108 void load_level(const std::string& filename)
 109 {
 110   if(GameSession::current() == NULL)
 111     throw std::runtime_error("Can't start level without active level.");
 112
 113   g_screen_manager->push_screen(new GameSession(filename, GameSession::current()->get_player_status()));
 114 }
 115
 116 void import(HSQUIRRELVM vm, const std::string& filename)
 117 {
 118   IFileStream in(filename);
 119
 120   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 121                           filename.c_str(), SQTrue)))
 122     throw SquirrelError(vm, "Couldn't parse script");
 123
 124   sq_pushroottable(vm);
 125   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 126     sq_pop(vm, 1);
 127     throw SquirrelError(vm, "Couldn't execute script");
 128   }
 129   sq_pop(vm, 1);
 130 }
 131
 132 void debug_collrects(bool enable)
 133 {
 134   Sector::show_collrects = enable;
 135 }
 136
 137 void debug_show_fps(bool enable)
 138 {
 139   g_config->show_fps = enable;
 140 }
 141
 142 void debug_draw_solids_only(bool enable)
 143 {
 144   Sector::draw_solids_only = enable;
 145 }
 146
 147 void debug_worldmap_ghost(bool enable)
 148 {
 149   using namespace worldmap;
 150
 151   if(WorldMap::current() == NULL)
 152     throw std::runtime_error("Can't change ghost mode without active WorldMap");
 153
 154   WorldMap::current()->get_tux()->set_ghost_mode(enable);
 155 }
 156
 157 void save_state()
 158 {
 159   using namespace worldmap;
 160
 161   if(World::current() == NULL || WorldMap::current() == NULL)
 162     throw std::runtime_error("Can't save state without active World");
 163
 164   WorldMap::current()->save_state();
 165   World::current()->save_state();
 166 }
 167
 168 void update_worldmap()
 169 {
 170   using namespace worldmap;
 171
 172   if(WorldMap::current() == NULL)
 173     throw std::runtime_error("Can't update Worldmap: none active");
 174
 175   WorldMap::current()->load_state();
 176 }
 177
 178 // not added to header, function to only be used by others
 179 // in this file
 180 bool validate_sector_player()
 181 {
 182   if (Sector::current() == 0)
 183   {
 184     log_info << "No current sector." << std::endl;
 185     return false;
 186   }
 187
 188   if (Sector::current()->player == 0)
 189   {
 190     log_info << "No player." << std::endl;
 191     return false;
 192   }
 193   return true;
 194 }
 195
 196 void play_music(const std::string& filename)
 197 {
 198   sound_manager->play_music(filename);
 199 }
 200
 201 void play_sound(const std::string& filename)
 202 {
 203   sound_manager->play(filename);
 204 }
 205
 206 void grease()
 207 {
 208   if (!validate_sector_player()) return;
 209   ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
 210   tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
 211 }
 212
 213 void invincible()
 214 {
 215   if (!validate_sector_player()) return;
 216   ::Player* tux = Sector::current()->player;
 217   tux->invincible_timer.start(10000);
 218 }
 219
 220 void ghost()
 221 {
 222   if (!validate_sector_player()) return;
 223   ::Player* tux = Sector::current()->player;
 224   tux->set_ghost_mode(true);
 225 }
 226
 227 void mortal()
 228 {
 229   if (!validate_sector_player()) return;
 230   ::Player* tux = Sector::current()->player;
 231   tux->invincible_timer.stop();
 232   tux->set_ghost_mode(false);
 233 }
 234
 235 void restart()
 236 {
 237   if (GameSession::current() == 0)
 238   {
 239     log_info << "No game session" << std::endl;
 240     return;
 241   }
 242   GameSession::current()->restart_level();
 243 }
 244
 245 void whereami()
 246 {
 247   if (!validate_sector_player()) return;
 248   ::Player* tux = Sector::current()->player;
 249   log_info << "You are at x " << tux->get_pos().x << ", y " << tux->get_pos().y << std::endl;
 250 }
 251
 252 void gotoend()
 253 {
 254   if (!validate_sector_player()) return;
 255   ::Player* tux = Sector::current()->player;
 256   tux->move(Vector(
 257               (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
 258   Sector::current()->camera->reset(
 259     Vector(tux->get_pos().x, tux->get_pos().y));
 260 }
 261
 262 void camera()
 263 {
 264   if (!validate_sector_player()) return;
 265   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 266 }
 267
 268 void set_gamma(float gamma) {
 269   SDL_SetGamma(gamma, gamma, gamma);
 270 }
 271
 272 void quit()
 273 {
 274   g_screen_manager->quit();
 275 }
 276
 277 int rand()
 278 {
 279   return systemRandom.rand();
 280 }
 281
 282 void set_game_speed(float speed)
 283 {
 284   ::g_game_speed = speed;
 285 }
 286
 287 void record_demo(const std::string& filename)
 288 {
 289   if (GameSession::current() == 0)
 290   {
 291     log_info << "No game session" << std::endl;
 292     return;
 293   }
 294   GameSession::current()->restart_level();
 295   GameSession::current()->record_demo(filename);
 296 }
 297
 298 void play_demo(const std::string& filename)
 299 {
 300   if (GameSession::current() == 0)
 301   {
 302     log_info << "No game session" << std::endl;
 303     return;
 304   }
 305   // Reset random seed
 306   g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
 307   g_config->random_seed = systemRandom.srand(g_config->random_seed);
 308   GameSession::current()->restart_level();
 309   GameSession::current()->play_demo(filename);
 310 }
 311
 312 }
 313
 314 /* EOF */