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