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 "object/camera.hpp"
  45 #include "flip_level_transformer.hpp"
  46
  47 #include "squirrel_error.hpp"
  48 #include "wrapper_util.hpp"
  49
  50 namespace Scripting
  51 {
  52
  53 int display(HSQUIRRELVM vm)
  54 {
  55   Console::output << squirrel2string(vm, -1) << std::endl;
  56   return 0;
  57 }
  58
  59 void wait(HSQUIRRELVM vm, float seconds)
  60 {
  61   SQUserPointer ptr = sq_getforeignptr(vm);
  62   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  63   script_manager->set_wakeup_event(vm, ScriptManager::TIME, seconds);
  64 }
  65
  66 void wait_for_screenswitch(HSQUIRRELVM vm)
  67 {
  68   SQUserPointer ptr = sq_getforeignptr(vm);
  69   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  70   script_manager->set_wakeup_event(vm, ScriptManager::SCREEN_SWITCHED);
  71 }
  72
  73 void exit_screen()
  74 {
  75   main_loop->exit_screen();
  76 }
  77
  78 std::string translate(const std::string& text)
  79 {
  80   return dictionary_manager.get_dictionary().translate(text);
  81 }
  82
  83 void display_text_file(const std::string& filename)
  84 {
  85   main_loop->push_screen(new TextScroller(filename));
  86 }
  87
  88 void load_worldmap(const std::string& filename)
  89 {
  90   using namespace WorldMapNS;
  91
  92   main_loop->push_screen(new WorldMap(filename));
  93 }
  94
  95 void load_level(const std::string& filename)
  96 {
  97   main_loop->push_screen(new GameSession(filename));
  98 }
  99
 100 static SQInteger squirrel_read_char(SQUserPointer file)
 101 {
 102   std::istream* in = reinterpret_cast<std::istream*> (file);
 103   char c = in->get();
 104   if(in->eof())
 105     return 0;
 106
 107   return c;
 108 }
 109
 110
 111 void import(HSQUIRRELVM vm, const std::string& filename)
 112 {
 113   IFileStream in(filename);
 114
 115   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 116           filename.c_str(), SQTrue)))
 117     throw SquirrelError(vm, "Couldn't parse script");
 118
 119   sq_pushroottable(vm);
 120   if(SQ_FAILED(sq_call(vm, 1, SQFalse))) {
 121     sq_pop(vm, 1);
 122     throw SquirrelError(vm, "Couldn't execute script");
 123   }
 124   sq_pop(vm, 1);
 125 }
 126
 127 void add_key(int new_key)
 128 {
 129   player_status->set_keys(new_key);
 130 }
 131
 132 void debug_collrects(bool enable)
 133 {
 134   Sector::show_collrects = enable;
 135 }
 136
 137 void debug_draw_fps(bool enable)
 138 {
 139   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 save_state()
 148 {
 149   if(World::current() == NULL)
 150     throw std::runtime_error("Can't save state without active World");
 151
 152   World::current()->save_state();
 153 }
 154
 155 // not added to header, function to only be used by others
 156 // in this file
 157 bool validate_sector_player()
 158 {
 159   if (Sector::current() == 0)
 160   {
 161     log_info << "No current sector." << std::endl;
 162         return false;
 163   }
 164
 165   if (Sector::current()->player == 0)
 166   {
 167     log_info << "No player." << std::endl;
 168         return false;
 169   }
 170   return true;
 171 }
 172
 173 void grease()
 174 {
 175   if (!validate_sector_player()) return;
 176   ::Player* tux = Sector::current()->player; // Scripting::Player != ::Player
 177   tux->physic.set_velocity_x(tux->physic.get_velocity_x()*3);
 178 }
 179
 180 void invincible()
 181 {
 182   if (!validate_sector_player()) return;
 183   ::Player* tux = Sector::current()->player;
 184   tux->invincible_timer.start(10000);
 185 }
 186
 187 void mortal()
 188 {
 189   if (!validate_sector_player()) return;
 190   ::Player* tux = Sector::current()->player;
 191   tux->invincible_timer.stop();
 192 }
 193
 194 void shrink()
 195 {
 196   if (!validate_sector_player()) return;
 197   ::Player* tux = Sector::current()->player;
 198   tux->kill(tux->SHRINK);
 199 }
 200
 201 void kill()
 202 {
 203   if (!validate_sector_player()) return;
 204   ::Player* tux = Sector::current()->player;
 205   tux->kill(tux->KILL);
 206 }
 207
 208 void restart()
 209 {
 210   if (GameSession::current() == 0)
 211   {
 212     log_info << "No game session" << std::endl;
 213     return;
 214   }
 215   GameSession::current()->restart_level();
 216 }
 217
 218 void whereami()
 219 {
 220   if (!validate_sector_player()) return;
 221   ::Player* tux = Sector::current()->player;
 222   log_info << "You are at x " << tux->get_pos().x << ", y " << tux->get_pos().y << std::endl;
 223 }
 224
 225 void gotoend()
 226 {
 227   if (!validate_sector_player()) return;
 228   ::Player* tux = Sector::current()->player;
 229   tux->move(Vector(
 230           (Sector::current()->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 231   Sector::current()->camera->reset(
 232         Vector(tux->get_pos().x, tux->get_pos().y));
 233 }
 234
 235 void camera()
 236 {
 237   if (!validate_sector_player()) return;
 238   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 239 }
 240
 241 void quit()
 242 {
 243   main_loop->quit();
 244 }
 245
 246 }
 247