src/scripting/functions.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include <config.h>
  21
  22 #include <memory>
  23 #include <stdio.h>
  24 #include <string>
  25 #include <squirrel.h>
  26 #include <sqstdio.h>
  27 #include "textscroller.hpp"
  28 #include "functions.hpp"
  29 #include "game_session.hpp"
  30 #include "tinygettext/tinygettext.hpp"
  31 #include "physfs/physfs_stream.hpp"
  32 #include "script_manager.hpp"
  33 #include "resources.hpp"
  34 #include "gettext.hpp"
  35 #include "log.hpp"
  36 #include "mainloop.hpp"
  37 #include "worldmap/worldmap.hpp"
  38 #include "world.hpp"
  39 #include "sector.hpp"
  40 #include "gameconfig.hpp"
  41 #include "object/player.hpp"
  42 #include "object/tilemap.hpp"
  43 #include "main.hpp"
  44 #include "fadeout.hpp"
  45 #include "shrinkfade.hpp"
  46 #include "object/camera.hpp"
  47 #include "flip_level_transformer.hpp"
  48
  49 #include "squirrel_error.hpp"
  50 #include "wrapper_util.hpp"
  51
  52 namespace Scripting
  53 {
  54
  55 int display(HSQUIRRELVM vm)
  56 {
  57   Console::output << squirrel2string(vm, -1) << std::endl;
  58   return 0;
  59 }
  60
  61 void print_stacktrace(HSQUIRRELVM vm)
  62 {
  63   print_squirrel_stack(vm);
  64 }
  65
  66 int get_current_thread(HSQUIRRELVM vm)
  67 {
  68   SQObject object;
  69   sq_resetobject(&object);
  70   object._unVal.pThread = vm;
  71   object._type = OT_THREAD;
  72   sq_pushobject(vm, object);
  73
  74   return 1;
  75 }
  76
  77 void wait(HSQUIRRELVM vm, float seconds)
  78 {
  79   SQUserPointer ptr = sq_getforeignptr(vm);
  80   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  81   script_manager->set_wakeup_event(vm, ScriptManager::TIME, seconds);
  82 }
  83
  84 void wait_for_screenswitch(HSQUIRRELVM vm)
  85 {
  86   SQUserPointer ptr = sq_getforeignptr(vm);
  87   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  88   script_manager->set_wakeup_event(vm, ScriptManager::SCREEN_SWITCHED);
  89 }
  90
  91 void exit_screen()
  92 {
  93   main_loop->exit_screen();
  94 }
  95
  96 void fadeout_screen(float seconds)
  97 {
  98   main_loop->set_screen_fade(new FadeOut(seconds));
  99 }
 100
 101 void shrink_screen(float dest_x, float dest_y, float seconds)
 102 {
 103   main_loop->set_screen_fade(new ShrinkFade(Vector(dest_x, dest_y), seconds));
 104 }
 105
 106 std::string translate(const std::string& text)
 107 {
 108   return dictionary_manager.get_dictionary().translate(text);
 109 }
 110
 111 void display_text_file(const std::string& filename)
 112 {
 113   main_loop->push_screen(new TextScroller(filename));
 114 }
 115
 116 void load_worldmap(const std::string& filename)
 117 {
 118   using namespace WorldMapNS;
 119
 120   main_loop->push_screen(new WorldMap(filename));
 121 }
 122
 123 void load_level(const std::string& filename)
 124 {
 125   main_loop->push_screen(new GameSession(filename));
 126 }
 127
 128 static SQInteger squirrel_read_char(SQUserPointer file)
 129 {
 130   std::istream* in = reinterpret_cast<std::istream*> (file);
 131   char c = in->get();
 132   if(in->eof())
 133     return 0;
 134
 135   return c;
 136 }
 137
 138 void import(HSQUIRRELVM vm, const std::string& filename)
 139 {
 140   IFileStream in(filename);
 141
 142   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 143           filename.c_str(), SQTrue)))
 144     throw SquirrelError(vm, "Couldn't parse script");
 145
 146   sq_pushroottable(vm);
 147   if(SQ_FAILED(sq_call(vm, 1, SQFalse))) {
 148     sq_pop(vm, 1);
 149     throw SquirrelError(vm, "Couldn't execute script");
 150   }
 151   sq_pop(vm, 1);
 152 }
 153
 154 void add_key(int new_key)
 155 {
 156   player_status->set_keys(new_key);
 157 }
 158
 159 void debug_collrects(bool enable)
 160 {
 161   Sector::show_collrects = enable;
 162 }
 163
 164 void debug_draw_fps(bool enable)
 165 {
 166   config->show_fps = enable;
 167 }
 168
 169 void debug_draw_solids_only(bool enable)
 170 {
 171   Sector::draw_solids_only = enable;
 172 }
 173
 174 void save_state()
 175 {
 176   using namespace WorldMapNS;
 177
 178   if(World::current() == NULL)
 179     throw std::runtime_error("Can't save state without active World");
 180
 181   if(WorldMap::current() != NULL)
 182     WorldMap::current()->save_state();
 183   World::current()->save_state();
 184 }
 185
 186 // not added to header, function to only be used by others
 187 // in this file
 188 bool validate_sector_player()
 189 {
 190   if (Sector::current() == 0)
 191   {
 192     log_info << "No current sector." << std::endl;
 193         return false;
 194   }
 195
 196   if (Sector::current()->player == 0)
 197   {
 198     log_info << "No player." << std::endl;
 199         return false;
 200   }
 201   return true;
 202 }
 203
 204 void grease()
 205 {
 206   if (!validate_sector_player()) return;
 207   ::Player* tux = Sector::current()->player; // Scripting::Player != ::Player
 208   tux->physic.set_velocity_x(tux->physic.get_velocity_x()*3);
 209 }
 210
 211 void invincible()
 212 {
 213   if (!validate_sector_player()) return;
 214   ::Player* tux = Sector::current()->player;
 215   tux->invincible_timer.start(10000);
 216 }
 217
 218 void mortal()
 219 {
 220   if (!validate_sector_player()) return;
 221   ::Player* tux = Sector::current()->player;
 222   tux->invincible_timer.stop();
 223 }
 224
 225 void shrink()
 226 {
 227   if (!validate_sector_player()) return;
 228   ::Player* tux = Sector::current()->player;
 229   tux->kill(tux->SHRINK);
 230 }
 231
 232 void kill()
 233 {
 234   if (!validate_sector_player()) return;
 235   ::Player* tux = Sector::current()->player;
 236   tux->kill(tux->KILL);
 237 }
 238
 239 void restart()
 240 {
 241   if (GameSession::current() == 0)
 242   {
 243     log_info << "No game session" << std::endl;
 244     return;
 245   }
 246   GameSession::current()->restart_level();
 247 }
 248
 249 void whereami()
 250 {
 251   if (!validate_sector_player()) return;
 252   ::Player* tux = Sector::current()->player;
 253   log_info << "You are at x " << tux->get_pos().x << ", y " << tux->get_pos().y << std::endl;
 254 }
 255
 256 void gotoend()
 257 {
 258   if (!validate_sector_player()) return;
 259   ::Player* tux = Sector::current()->player;
 260   tux->move(Vector(
 261           (Sector::current()->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 262   Sector::current()->camera->reset(
 263         Vector(tux->get_pos().x, tux->get_pos().y));
 264 }
 265
 266 void camera()
 267 {
 268   if (!validate_sector_player()) return;
 269   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 270 }
 271
 272 void quit()
 273 {
 274   main_loop->quit();
 275 }
 276
 277 }
 278