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.hpp"
  38 #include "world.hpp"
  39 #include "sector.hpp"
  40 #include "object/player.hpp"
  41 #include "object/tilemap.hpp"
  42 #include "main.hpp"
  43 #include "object/camera.hpp"
  44 #include "flip_level_transformer.hpp"
  45
  46 #include "squirrel_error.hpp"
  47 #include "wrapper_util.hpp"
  48
  49 namespace Scripting
  50 {
  51
  52 int display(HSQUIRRELVM vm)
  53 {
  54   Console::output << squirrel2string(vm, -1) << std::endl;
  55   return 0;
  56 }
  57
  58 void wait(HSQUIRRELVM vm, float seconds)
  59 {
  60   SQUserPointer ptr = sq_getforeignptr(vm);
  61   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  62   script_manager->set_wakeup_event(vm, ScriptManager::TIME, seconds);
  63 }
  64
  65 void wait_for_screenswitch(HSQUIRRELVM vm)
  66 {
  67   SQUserPointer ptr = sq_getforeignptr(vm);
  68   ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
  69   script_manager->set_wakeup_event(vm, ScriptManager::SCREEN_SWITCHED);
  70 }
  71
  72 void exit_screen()
  73 {
  74   main_loop->exit_screen();
  75 }
  76
  77 std::string translate(const std::string& text)
  78 {
  79   return dictionary_manager.get_dictionary().translate(text);
  80 }
  81
  82 void display_text_file(const std::string& filename)
  83 {
  84   main_loop->push_screen(new TextScroller(filename));
  85 }
  86
  87 void load_worldmap(const std::string& filename)
  88 {
  89   using namespace WorldMapNS;
  90
  91   std::auto_ptr<WorldMap> worldmap(new WorldMap());
  92   worldmap->loadmap(filename);
  93   main_loop->push_screen(worldmap.release());
  94 }
  95
  96 void load_level(const std::string& filename)
  97 {
  98   main_loop->push_screen(new GameSession(filename, ST_GL_PLAY));
  99 }
 100
 101 static SQInteger squirrel_read_char(SQUserPointer file)
 102 {
 103   std::istream* in = reinterpret_cast<std::istream*> (file);
 104   char c = in->get();
 105   if(in->eof())
 106     return 0;
 107
 108   return c;
 109 }
 110
 111
 112 void import(HSQUIRRELVM vm, const std::string& filename)
 113 {
 114   IFileStream in(filename);
 115
 116   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 117           filename.c_str(), SQTrue)))
 118     throw SquirrelError(vm, "Couldn't parse script");
 119
 120   sq_pushroottable(vm);
 121   if(SQ_FAILED(sq_call(vm, 1, SQFalse))) {
 122     sq_pop(vm, 1);
 123     throw SquirrelError(vm, "Couldn't execute script");
 124   }
 125   sq_pop(vm, 1);
 126 }
 127
 128 void add_key(int new_key)
 129 {
 130   player_status->set_keys(new_key);
 131 }
 132
 133 void debug_collrects(bool enable)
 134 {
 135   Sector::show_collrects = enable;
 136 }
 137
 138 void draw_solids_only(bool enable)
 139 {
 140   Sector::draw_solids_only = enable;
 141 }
 142
 143 void save_state()
 144 {
 145   if(World::current() == NULL)
 146     throw std::runtime_error("Can't save state without active World");
 147
 148   World::current()->save_state();
 149 }
 150
 151 // not added to header, function to only be used by others
 152 // in this file
 153 bool validate_sector_player()
 154 {
 155   if (Sector::current() == 0)
 156   {
 157     log_info << "No current sector." << std::endl;
 158         return false;
 159   }
 160
 161   if (Sector::current()->player == 0)
 162   {
 163     log_info << "No player." << std::endl;
 164         return false;
 165   }
 166   return true;
 167 }
 168
 169 void grease()
 170 {
 171   if (!validate_sector_player()) return;
 172   ::Player* tux = Sector::current()->player; // Scripting::Player != ::Player
 173   tux->physic.set_velocity_x(tux->physic.get_velocity_x()*3);
 174 }
 175
 176 void invincible()
 177 {
 178   if (!validate_sector_player()) return;
 179   ::Player* tux = Sector::current()->player;
 180   tux->invincible_timer.start(10000);
 181 }
 182
 183 void mortal()
 184 {
 185   if (!validate_sector_player()) return;
 186   ::Player* tux = Sector::current()->player;
 187   tux->invincible_timer.stop();
 188 }
 189
 190 void shrink()
 191 {
 192   if (!validate_sector_player()) return;
 193   ::Player* tux = Sector::current()->player;
 194   tux->kill(tux->SHRINK);
 195 }
 196
 197 void kill()
 198 {
 199   if (!validate_sector_player()) return;
 200   ::Player* tux = Sector::current()->player;
 201   tux->kill(tux->KILL);
 202 }
 203
 204 void restart()
 205 {
 206   if (GameSession::current() == 0)
 207   {
 208     log_info << "No game session" << std::endl;
 209     return;
 210   }
 211   GameSession::current()->restart_level();
 212 }
 213
 214 void whereami()
 215 {
 216   if (!validate_sector_player()) return;
 217   ::Player* tux = Sector::current()->player;
 218   log_info << "You are at x " << tux->get_pos().x << ", y " << tux->get_pos().y << std::endl;
 219 }
 220
 221 void gotoend()
 222 {
 223   if (!validate_sector_player()) return;
 224   ::Player* tux = Sector::current()->player;
 225   tux->move(Vector(
 226           (Sector::current()->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 227   Sector::current()->camera->reset(
 228         Vector(tux->get_pos().x, tux->get_pos().y));
 229 }
 230
 231 void flip()
 232 {
 233   if (GameSession::current() == 0)
 234   {
 235     log_info << "No game session" << std::endl;
 236     return;
 237   }
 238   if (GameSession::current()->get_current_level() == 0)
 239   {
 240     log_info << "No current level" << std::endl;
 241         return;
 242   }
 243   FlipLevelTransformer flip_transformer;
 244   flip_transformer.transform(GameSession::current()->get_current_level());
 245 }
 246
 247 void finish()
 248 {
 249   if (GameSession::current() == 0)
 250   {
 251     log_info << "No game session" << std::endl;
 252     return;
 253   }
 254   GameSession::current()->finish(true);
 255 }
 256
 257 void camera()
 258 {
 259   if (!validate_sector_player()) return;
 260   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 261 }
 262
 263 void quit()
 264 {
 265   main_loop->quit();
 266 }
 267
 268 }
 269