Proposed fix for coverity #29372
[supertux.git] / src / scripting / functions.cpp
index aa08d28..2c906ff 100644 (file)
-//  $Id: main.cpp 3275 2006-04-09 00:32:34Z sommer $
-// 
 //  SuperTux
-//  Copyright (C) 2005 Matthias Braun <matze@braunis.de>
+//  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
 //
-//  This program is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU General Public License
-//  as published by the Free Software Foundation; either version 2
-//  of the License, or (at your option) any later version.
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
 //
 //  This program is distributed in the hope that it will be useful,
 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //  GNU General Public License for more details.
-// 
+//
 //  You should have received a copy of the GNU General Public License
-//  along with this program; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-//  02111-1307, USA.
-#include <config.h>
-
-#include <memory>
-#include <stdio.h>
-#include <string>
-#include <squirrel.h>
-#include <sqstdio.h>
-#include "textscroller.hpp"
-#include "functions.hpp"
-#include "game_session.hpp"
-#include "tinygettext/tinygettext.hpp"
-#include "physfs/physfs_stream.hpp"
-#include "script_manager.hpp"
-#include "resources.hpp"
-#include "gettext.hpp"
-#include "log.hpp"
-#include "mainloop.hpp"
-#include "worldmap.hpp"
-#include "world.hpp"
-
-#include "squirrel_error.hpp"
-#include "wrapper_util.hpp"
-
-namespace Scripting
-{
-
-int display(HSQUIRRELVM vm)
-{
-  Console::output << squirrel2string(vm, -1) << std::endl;
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "scripting/functions.hpp"
+
+#include "audio/sound_manager.hpp"
+#include "math/random_generator.hpp"
+#include "object/camera.hpp"
+#include "object/player.hpp"
+#include "physfs/buffered_ifile_stream.hpp"
+#include "supertux/fadeout.hpp"
+#include "supertux/game_session.hpp"
+#include "supertux/gameconfig.hpp"
+#include "supertux/globals.hpp"
+#include "supertux/screen_manager.hpp"
+#include "supertux/sector.hpp"
+#include "supertux/shrinkfade.hpp"
+#include "supertux/textscroller.hpp"
+#include "supertux/tile.hpp"
+#include "supertux/world.hpp"
+#include "util/gettext.hpp"
+#include "video/renderer.hpp"
+#include "video/video_system.hpp"
+#include "worldmap/tux.hpp"
+#include "worldmap/worldmap.hpp"
+
+#include "scripting/squirrel_util.hpp"
+#include "scripting/time_scheduler.hpp"
+
+namespace scripting {
+
+SQInteger display(HSQUIRRELVM vm)
+{
+  ConsoleBuffer::output << squirrel2string(vm, -1) << std::endl;
   return 0;
 }
 
+void print_stacktrace(HSQUIRRELVM vm)
+{
+  print_squirrel_stack(vm);
+}
+
+SQInteger get_current_thread(HSQUIRRELVM vm)
+{
+  sq_pushobject(vm, vm_to_object(vm));
+  return 1;
+}
+
 void wait(HSQUIRRELVM vm, float seconds)
 {
-  SQUserPointer ptr = sq_getforeignptr(vm);
-  ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
-  script_manager->set_wakeup_event(vm, ScriptManager::TIME, seconds);
+  TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
 }
 
 void wait_for_screenswitch(HSQUIRRELVM vm)
 {
-  SQUserPointer ptr = sq_getforeignptr(vm);
-  ScriptManager* script_manager = reinterpret_cast<ScriptManager*> (ptr);
-  script_manager->set_wakeup_event(vm, ScriptManager::SCREEN_SWITCHED);
+  ScreenManager::current()->m_waiting_threads.add(vm);
 }
 
 void exit_screen()
 {
-  main_loop->exit_screen();
+  ScreenManager::current()->pop_screen();
 }
 
-std::string translate(const std::string& text)
+void fadeout_screen(float seconds)
 {
-  return dictionary_manager.get_dictionary().translate(text);
+  ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>(new FadeOut(seconds)));
 }
 
-void display_text_file(const std::string& filename)
+void shrink_screen(float dest_x, float dest_y, float seconds)
 {
-  main_loop->push_screen(new TextScroller(filename));
+  ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>(new ShrinkFade(Vector(dest_x, dest_y), seconds)));
 }
 
-void load_worldmap(const std::string& filename)
+void abort_screenfade()
 {
-  using namespace WorldMapNS;
+  ScreenManager::current()->set_screen_fade(std::unique_ptr<ScreenFade>());
+}
 
-  std::auto_ptr<WorldMap> worldmap(new WorldMap());
-  worldmap->loadmap(filename);
-  main_loop->push_screen(worldmap.release());
+std::string translate(const std::string& text)
+{
+  return g_dictionary_manager->get_dictionary().translate(text);
 }
 
-void load_level(const std::string& filename)
+void display_text_file(const std::string& filename)
 {
-  main_loop->push_screen(new GameSession(filename, ST_GL_PLAY));
+  ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new TextScroller(filename)));
 }
 
-static SQInteger squirrel_read_char(SQUserPointer file)
+void load_worldmap(const std::string& filename)
 {
-  std::istream* in = reinterpret_cast<std::istream*> (file);
-  char c = in->get();
-  if(in->eof())
-    return 0;
+  using namespace worldmap;
 
-  return c;
+  if (!WorldMap::current())
+  {
+    throw std::runtime_error("Can't start Worldmap without active WorldMap");
+  }
+  else
+  {
+    ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new WorldMap(filename, WorldMap::current()->get_savegame())));
+  }
 }
 
+void load_level(const std::string& filename)
+{
+  if (!GameSession::current())
+  {
+    throw std::runtime_error("Can't start level without active level.");
+  }
+  else
+  {
+    ScreenManager::current()->push_screen(std::unique_ptr<Screen>(new GameSession(filename, GameSession::current()->get_savegame())));
+  }
+}
 
 void import(HSQUIRRELVM vm, const std::string& filename)
 {
-  IFileStream in(filename);
-    
+  BufferedIFileStream* stream = new BufferedIFileStream(filename);
+  IFileStream* in = stream->get_stream();
+
   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
-          filename.c_str(), SQTrue)))
+                          filename.c_str(), SQTrue)))
     throw SquirrelError(vm, "Couldn't parse script");
-    
+
   sq_pushroottable(vm);
-  if(SQ_FAILED(sq_call(vm, 1, SQFalse))) {
+  if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
     sq_pop(vm, 1);
     throw SquirrelError(vm, "Couldn't execute script");
   }
   sq_pop(vm, 1);
 }
 
-void add_key(int new_key)
+void debug_collrects(bool enable)
+{
+  Sector::show_collrects = enable;
+}
+
+void debug_show_fps(bool enable)
+{
+  g_config->show_fps = enable;
+}
+
+void debug_draw_solids_only(bool enable)
+{
+  Sector::draw_solids_only = enable;
+}
+
+void debug_draw_editor_images(bool enable)
 {
-  player_status->set_keys(new_key);
+  Tile::draw_editor_images = enable;
+}
+
+void debug_worldmap_ghost(bool enable)
+{
+  using namespace worldmap;
+
+  if(WorldMap::current() == NULL)
+    throw std::runtime_error("Can't change ghost mode without active WorldMap");
+
+  WorldMap::current()->get_tux()->set_ghost_mode(enable);
 }
 
 void save_state()
 {
-  if(World::current() == NULL)
-    throw std::runtime_error("Can't save state without active World");
+  using worldmap::WorldMap;
+
+  if (!WorldMap::current())
+  {
+    throw std::runtime_error("Can't save state without active Worldmap");
+  }
+  else
+  {
+    WorldMap::current()->save_state();
+  }
+}
+
+// not added to header, function to only be used by others
+// in this file
+bool validate_sector_player()
+{
+  if (Sector::current() == 0)
+  {
+    log_info << "No current sector." << std::endl;
+    return false;
+  }
+
+  if (Sector::current()->player == 0)
+  {
+    log_info << "No player." << std::endl;
+    return false;
+  }
+  return true;
+}
+
+void play_music(const std::string& filename)
+{
+  SoundManager::current()->play_music(filename);
+}
+
+void play_sound(const std::string& filename)
+{
+  SoundManager::current()->play(filename);
+}
+
+void grease()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player; // scripting::Player != ::Player
+  tux->get_physic().set_velocity_x(tux->get_physic().get_velocity_x()*3);
+}
+
+void invincible()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player;
+  tux->invincible_timer.start(10000);
+}
+
+void ghost()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player;
+  tux->set_ghost_mode(true);
+}
+
+void mortal()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player;
+  tux->invincible_timer.stop();
+  tux->set_ghost_mode(false);
+}
+
+void restart()
+{
+  if (GameSession::current() == 0)
+  {
+    log_info << "No game session" << std::endl;
+    return;
+  }
+  GameSession::current()->restart_level();
+}
+
+void whereami()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player;
+  log_info << "You are at x " << ((int) tux->get_pos().x) << ", y " << ((int) tux->get_pos().y) << std::endl;
+}
+
+void gotoend()
+{
+  if (!validate_sector_player()) return;
+  ::Player* tux = Sector::current()->player;
+  tux->move(Vector(
+              (Sector::current()->get_width()) - (SCREEN_WIDTH*2), 0));
+  Sector::current()->camera->reset(
+    Vector(tux->get_pos().x, tux->get_pos().y));
+}
+
+void camera()
+{
+  if (!validate_sector_player()) return;
+  log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
+}
+
+void set_gamma(float gamma)
+{
+  VideoSystem::current()->get_renderer().set_gamma(gamma);
+}
+
+void quit()
+{
+  ScreenManager::current()->quit();
+}
+
+int rand()
+{
+  return gameRandom.rand();
+}
+
+void set_game_speed(float speed)
+{
+  ::g_game_speed = speed;
+}
 
-  World::current()->save_state();
+void record_demo(const std::string& filename)
+{
+  if (GameSession::current() == 0)
+  {
+    log_info << "No game session" << std::endl;
+    return;
+  }
+  GameSession::current()->restart_level();
+  GameSession::current()->record_demo(filename);
+}
+
+void play_demo(const std::string& filename)
+{
+  if (GameSession::current() == 0)
+  {
+    log_info << "No game session" << std::endl;
+    return;
+  }
+  // Reset random seed
+  g_config->random_seed = GameSession::current()->get_demo_random_seed(filename);
+  g_config->random_seed = gameRandom.srand(g_config->random_seed);
+  GameSession::current()->restart_level();
+  GameSession::current()->play_demo(filename);
 }
 
 }
 
+/* EOF */