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source: orxonox.OLD/trunk/src/story_entities/game_world.cc @ 9571

Last change on this file since 9571 was 9494, checked in by bensch, 18 years ago

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1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer: Patrick Boenzli
13   co-programmer: Christian Meyer
14   co-programmer: Benjamin Grauer
15*/
16
17#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD
18
19#include "game_world.h"
20#include "game_world_data.h"
21
22#include "util/loading/resource_manager.h"
23#include "state.h"
24#include "class_list.h"
25
26#include "util/loading/game_loader.h"
27#include "util/timer.h"
28
29#include "player.h"
30#include "camera.h"
31#include "environment.h"
32#include "terrain.h"
33#include "test_entity.h"
34#include "terrain.h"
35#include "playable.h"
36#include "environments/mapped_water.h"
37
38#include "light.h"
39
40#include "util/loading/factory.h"
41#include "util/loading/load_param.h"
42#include "fast_factory.h"
43#include "shell_command.h"
44
45#include "graphics_engine.h"
46#include "effects/atmospheric_engine.h"
47#include "event_handler.h"
48#include "sound_engine.h"
49#include "cd_engine.h"
50#include "network_manager.h"
51#include "physics_engine.h"
52#include "fields.h"
53
54#include "glmenu_imagescreen.h"
55#include "shell.h"
56
57#include "ogg_player.h"
58#include "shader.h"
59
60#include "animation_player.h"
61
62#include "game_rules.h"
63
64#include "script_class.h"
65CREATE_SCRIPTABLE_CLASS(GameWorld, CL_GAME_WORLD,
66                        addMethod("setPlaymode", ExecutorLua1<GameWorld,const std::string&>(&GameWorld::setPlaymode))
67                        ->addMethod("setSoundtrack", ExecutorLua1<GameWorld, const std::string&>(&GameWorld::setSoundtrack))
68                       );
69
70SHELL_COMMAND(speed, GameWorld, setSpeed) ->describe("set the Speed of the Level");
71SHELL_COMMAND(playmode, GameWorld, setPlaymode)
72->describe("Set the Playmode of the current Level")
73->completionPlugin(0, OrxShell::CompletorStringArray(Playable::playmodeNames, Playable::PlaymodeCount));
74
75SHELL_COMMAND(togglePNodeVisibility, GameWorld, togglePNodeVisibility);
76SHELL_COMMAND(showBVLevel, GameWorld, toggleBVVisibility);
77
78
79
80GameWorld::GameWorld()
81    : StoryEntity()
82{
83  this->setClassID(CL_GAME_WORLD, "GameWorld");
84  this->setName("Preloaded World - no name yet");
85
86  this->gameTime = 0.0f;
87  this->setSpeed(1.0f);
88  this->shell = NULL;
89
90  this->showPNodes = false;
91  this->showBV = false;
92  this->showBVLevel = 3;
93
94  this->dataXML = NULL;
95  this->gameRules = NULL;
96}
97
98/**
99 *  remove the GameWorld from memory
100 *
101 *  delete everything explicitly, that isn't contained in the parenting tree!
102 *  things contained in the tree are deleted automaticaly
103 */
104GameWorld::~GameWorld ()
105{
106  PRINTF(4)("Deleted GameWorld\n");
107
108}
109
110
111
112/**
113 * loads the parameters of a GameWorld from an XML-element
114 * @param root the XML-element to load from
115 */
116void GameWorld::loadParams(const TiXmlElement* root)
117{
118  StoryEntity::loadParams(root);
119
120  PRINTF(4)("Loaded GameWorld specific stuff\n");
121}
122
123
124/**
125 * this is executed just before load
126 *
127 * since the load function sometimes needs data, that has been initialized
128 * before the load and after the proceeding storyentity has finished
129*/
130ErrorMessage GameWorld::init()
131{
132  /* init the world interface */
133  this->shell = new OrxShell::Shell();
134
135  State::setCurrentStoryEntity(dynamic_cast<StoryEntity*>(this));
136  this->dataTank->init();
137
138  /* initialize some engines and graphical elements */
139  AnimationPlayer::getInstance();
140  PhysicsEngine::getInstance();
141  CREngine::getInstance();
142
143  State::setScriptManager(&this->scriptManager);
144
145  return ErrorMessage();
146}
147
148/**
149 *  loads the GameWorld by initializing all resources, and set their default values.
150 */
151ErrorMessage GameWorld::loadData()
152{
153  this->displayLoadScreen();  State::setScriptManager(&this->scriptManager);
154
155
156  PRINTF(0)("Loading the GameWorld\n");
157
158  PRINTF(3)("> Loading world: '%s'\n", getLoadFile().c_str());
159  //  TiXmlElement* element;
160  //  GameLoader* loader = GameLoader::getInstance();
161
162  if( getLoadFile().empty())
163  {
164    PRINTF(1)("GameWorld has no path specified for loading\n");
165    return (ErrorMessage(213,"Path not specified","GameWorld::load()"));
166  }
167
168  TiXmlDocument* XMLDoc = new TiXmlDocument( getLoadFile());
169  // load the xml world file for further loading
170  if( !XMLDoc->LoadFile())
171  {
172    PRINTF(1)("loading XML File: %s @ %s:l%d:c%d\n", XMLDoc->ErrorDesc(), this->getLoadFile().c_str(), XMLDoc->ErrorRow(), XMLDoc->ErrorCol());
173    delete XMLDoc;
174    return ErrorMessage(213,"XML File parsing error","GameWorld::load()");
175  }
176  // check basic validity
177  TiXmlElement* root = XMLDoc->RootElement();
178  assert( root != NULL);
179  if( root == NULL || root->Value() == NULL || strcmp( root->Value(), "WorldDataFile"))
180  {
181    // report an error
182    PRINTF(1)("Specified XML File is not an orxonox world data file (WorldDataFile element missing)\n");
183    delete XMLDoc;
184    return ErrorMessage(213,"Path not a WorldDataFile","GameWorld::load()");
185  }
186  /* the whole loading process for the GameWorld */
187  this->dataTank->loadData(root);
188  this->dataXML = (TiXmlElement*)root->Clone();
189
190  //remove this after finished testing !!!!
191  //Object* obj= new Object();
192  //obj->setName("Obj");
193  //Account* a = new Account();
194  //a->setName("a");
195  //Account *b = new Account(30);
196  //b->setName("b");
197
198
199  LoadParamXML(root, "ScriptManager", &this->scriptManager, ScriptManager, loadParams);
200
201  delete XMLDoc;
202  this->releaseLoadScreen();
203
204  return ErrorMessage();
205}
206
207
208/**
209 *  unload the data of this GameWorld
210 */
211ErrorMessage GameWorld::unloadData()
212{
213
214  PRINTF(3)("GameWorld::~GameWorld() - unloading the current GameWorld\n");
215  this->scriptManager.flush();
216
217  delete this->shell;
218
219  this->dataTank->unloadData();
220
221  this->shell = NULL;
222  delete AnimationPlayer::getInstance();
223  delete PhysicsEngine::getInstance();
224  delete CREngine::getInstance();
225
226  State::setCurrentStoryEntity(NULL);
227  if (this->dataXML)
228    delete this->dataXML;
229
230  return ErrorMessage();
231}
232
233
234void GameWorld::setSoundtrack(const std::string& soundTrack)
235{
236  if (this->dataTank != NULL)
237  {
238    this->dataTank->setSoundTrack(soundTrack);
239    this->dataTank->music->play();
240  }
241}
242
243
244/**
245 *  starts the GameWorld
246 */
247bool GameWorld::start()
248{
249  this->bPaused = false;
250  this->bRunning = true;
251  State::setScriptManager(&this->scriptManager); //make sure we have the right script manager
252  this->run();
253
254  return true;
255}
256
257
258/**
259 *  stops the world.
260 */
261bool GameWorld::stop()
262{
263  PRINTF(3)("GameWorld::stop() - got stop signal\n");
264  State::setScriptManager(NULL);
265  return (this->bRunning = false);
266}
267
268
269/**
270 *  pauses the game
271 */
272bool GameWorld::pause()
273{
274  return (this->bPaused = true);
275}
276
277
278/**
279 *  ends the pause Phase
280 */
281bool GameWorld::resume()
282{
283  return(this->bPaused = false);
284}
285
286
287/**
288 *  main loop of the world: executing all world relevant function
289 *
290 * in this loop we synchronize (if networked), handle input events, give the heart-beat to
291 * all other member-entities of the world (tick to player, enemies etc.), checking for
292 * collisions drawing everything to the screen.
293 */
294void GameWorld::run()
295{
296  PRINTF(3)("GameWorld::mainLoop() - Entering main loop\n");
297
298  // initialize Timing
299  this->cycle = 0;
300  for (unsigned int i = 0; i < TICK_SMOOTH_VALUE; i++)
301    this->frameTimes[i] = 0.01f;
302  this->dtS = 0.0f;
303  this->lastFrame = Timer::getNow();
304
305  if (this->dataTank->music != NULL)
306    this->dataTank->music->play();
307
308  while( this->bRunning) /* @todo implement pause */
309  {
310    /* process intput */
311    this->handleInput ();
312    if( !this->bRunning)
313      break;
314
315    /* network synchronisation */
316    this->synchronize ();
317    /* process time */
318    this->tick ();
319
320
321    /* update the state */
322    //this->update (); /// LESS REDUNDANCY.
323    //      PNode::getNullParent()->updateNode(this->dtS);
324    PNode::getNullParent()->updateNode(this->dtS);
325
326    /* collision detection */
327    this->collisionDetection ();
328    /* collision reaction */
329    this->collisionReaction ();
330
331    /* check the game rules */
332    this->checkGameRules();
333
334    /* update the state */
335    this->update ();
336    /* draw everything */
337    this->display ();
338
339  }
340
341  PRINTF(0)("GameWorld::mainLoop() - Exiting the main loop\n");
342}
343
344
345void GameWorld::setPlaymode(Playable::Playmode playmode)
346{
347  if (this->dataTank->localPlayer &&
348      this->dataTank->localPlayer->getPlayable() &&
349      this->dataTank->localPlayer->getPlayable()->setPlaymode(playmode))
350  {
351    PRINTF(4)("Set Playmode to %d:%s\n", playmode, Playable::playmodeToString(playmode).c_str());
352  }
353  else
354  {
355    PRINTF(2)("Unable to set Playmode %d:'%s'\n", playmode, Playable::playmodeToString(playmode).c_str());
356  }
357}
358
359void GameWorld::setPlaymode(const std::string& playmode)
360{
361  this->setPlaymode(Playable::stringToPlaymode(playmode));
362}
363
364/**
365 *  synchronize local data with remote data
366*/
367void GameWorld::synchronize ()
368{}
369
370
371/**
372 *  run all input processing
373
374   the command node is the central input event dispatcher. the node uses the even-queue from
375   sdl and has its own event-passing-queue.
376*/
377void GameWorld::handleInput ()
378{
379  EventHandler::getInstance()->process();
380}
381
382
383/**
384 * @brief ticks a WorldEntity list
385 * @param entityList list of the WorldEntities
386 * @param dt time passed since last frame
387 */
388void GameWorld::tick(ObjectManager::EntityList entityList, float dt)
389{
390  ObjectManager::EntityList::iterator entity, next;
391  next = entityList.begin();
392  while (next != entityList.end())
393  {
394    entity = next++;
395    (*entity)->tick(dt);
396  }
397}
398
399
400/**
401 *  advance the timeline
402 *
403 * this calculates the time used to process one frame (with all input handling, drawing, etc)
404 * the time is mesured in ms and passed to all world-entities and other classes that need
405 * a heart-beat.
406 */
407void GameWorld::tick ()
408{
409  if( !this->bPaused)
410  {
411    // CALCULATE FRAMERATE
412    Uint32 frameTimesIndex;
413    Uint32 i;
414    double currentFrame = Timer::getNow();
415
416    if (currentFrame - this->lastFrame < .01)
417    {
418      SDL_Delay(1000.0 * (0.01 - (currentFrame - lastFrame)));
419      currentFrame = Timer::getNow();
420    }
421
422
423    frameTimesIndex = this->cycle % TICK_SMOOTH_VALUE;
424    this->frameTimes[frameTimesIndex] = currentFrame - this->lastFrame;
425    this->lastFrame = currentFrame;
426    ++this->cycle;
427    this->dtS = 0.0;
428    for (i = 0; i < TICK_SMOOTH_VALUE; i++)
429      this->dtS += this->frameTimes[i];
430    this->dtS = this->dtS / TICK_SMOOTH_VALUE * speed;
431
432    // TICK everything
433    for (i = 0; i < this->dataTank->tickLists.size(); ++i)
434      this->tick(this->dataTank->objectManager->getObjectList(this->dataTank->tickLists[i]), this->dtS);
435
436    /* update tick the rest */
437    this->dataTank->localCamera->tick(this->dtS);
438    AnimationPlayer::getInstance()->tick(this->dtS);
439    PhysicsEngine::getInstance()->tick(this->dtS);
440
441    GraphicsEngine::getInstance()->tick(this->dtS);
442    AtmosphericEngine::getInstance()->tick(this->dtS);
443
444    if( likely(this->dataTank->gameRule != NULL))
445      this->dataTank->gameRule->tick(this->dtS);
446
447  }
448}
449
450
451/**
452 *  this function gives the world a consistant state
453 *
454 * after ticking (updating the world state) this will give a constistant
455 * state to the whole system.
456 */
457void GameWorld::update()
458{
459  PNode::getNullParent()->updateNode (this->dtS);
460  OrxSound::SoundEngine::getInstance()->update();
461
462  this->applyCameraSettings();
463  GraphicsEngine::getInstance()->update(this->dtS);
464}
465
466
467/**
468 * kicks the CDEngine to detect the collisions between the object groups in the world
469 */
470void GameWorld::collisionDetection()
471{
472  // object-object collision detection
473  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_00),
474      this->dataTank->objectManager->getObjectList(OM_GROUP_01_PROJ));
475  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_01),
476      this->dataTank->objectManager->getObjectList(OM_GROUP_00_PROJ));
477  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_01),
478      this->dataTank->objectManager->getObjectList(OM_GROUP_00));
479
480  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_01),
481      this->dataTank->objectManager->getObjectList(OM_GROUP_02));
482  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_02),
483      this->dataTank->objectManager->getObjectList(OM_GROUP_01_PROJ));
484
485
486  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_00),
487      this->dataTank->objectManager->getObjectList(OM_COMMON));
488  CDEngine::getInstance()->checkCollisions(this->dataTank->objectManager->getObjectList(OM_GROUP_01),
489      this->dataTank->objectManager->getObjectList(OM_COMMON));
490
491  // ground collision detection: BSP Model
492  CDEngine::getInstance()->checkCollisionGround(this->dataTank->objectManager->getObjectList(OM_GROUP_00));
493  CDEngine::getInstance()->checkCollisionGround(this->dataTank->objectManager->getObjectList(OM_GROUP_01));
494}
495
496
497void GameWorld::collisionReaction()
498{
499  CREngine::getInstance()->handleCollisions();
500}
501
502
503/**
504 *  check the game rules: winning conditions, etc.
505 *
506 */
507void GameWorld::checkGameRules()
508{
509  if( this->gameRules)
510    this->gameRules->tick(this->dtS);
511}
512
513
514/**
515 *  render the current frame
516 *
517 * clear all buffers and draw the world
518 */
519void GameWorld::display ()
520{
521
522  // if this server is a dedicated server the game workd does not need to be drawn
523  if( !GraphicsEngine::getInstance()->isDedicated())
524  {
525    // render the reflection texture
526    this->renderPassReflection();
527    // redner the refraction texture
528    this->renderPassRefraction();
529  }
530  // render all
531  this->renderPassAll();
532
533  // flip buffers
534  GraphicsEngine::swapBuffers();
535}
536
537
538/**
539 * @brief draws all entities in the list drawList
540 * @param drawList the List of entities to draw.
541 */
542void GameWorld::drawEntityList(const ObjectManager::EntityList& drawList) const
543{
544  ObjectManager::EntityList::const_iterator entity;
545  for (entity = drawList.begin(); entity != drawList.end(); entity++)
546    if ((*entity)->isVisible())
547      (*entity)->draw();
548}
549
550
551void GameWorld::applyCameraSettings()
552{
553  this->dataTank->localCamera->apply ();
554  this->dataTank->localCamera->project ();
555  GraphicsEngine::storeMatrices();
556}
557
558
559
560/**
561 * reflection rendering for water surfaces
562 */
563void GameWorld::renderPassReflection()
564{
565  // clear buffer
566  glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
567  //  glLoadIdentity();
568
569  const std::list<BaseObject*>* reflectedWaters;
570  MappedWater* mw;
571
572  if( (reflectedWaters = ClassList::getList(CL_MAPPED_WATER)) != NULL)
573  {
574    std::list<BaseObject*>::const_iterator it;
575    for (it = reflectedWaters->begin(); it != reflectedWaters->end(); it++)
576    {
577      mw =  dynamic_cast<MappedWater*>(*it);
578
579      //camera and light
580      //this->dataTank->localCamera->apply ();
581      //this->dataTank->localCamera->project ();
582
583      LightManager::getInstance()->draw();
584
585
586      // prepare for reflection rendering
587      mw->activateReflection();
588
589      // draw everything to be included in the reflection
590      this->drawEntityList(State::getObjectManager()->getReflectionList());
591      //       for (unsigned int i = 0; i < this->dataTank->drawLists.size(); ++i)
592      //         this->drawEntityList(State::getObjectManager()->getObjectList(this->dataTank->drawLists[i]));
593
594      // clean up from reflection rendering
595      mw->deactivateReflection();
596    }
597  }
598
599}
600
601
602/**
603 *  refraction rendering for water surfaces
604 */
605void GameWorld::renderPassRefraction()
606{
607  // clear buffer
608  glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
609  //glLoadIdentity();
610
611  const std::list<BaseObject*>* reflectedWaters;
612  MappedWater* mw;
613
614  if( (reflectedWaters = ClassList::getList(CL_MAPPED_WATER)) != NULL)
615  {
616    std::list<BaseObject*>::const_iterator it;
617    for (it = reflectedWaters->begin(); it != reflectedWaters->end(); it++)
618    {
619      mw =  dynamic_cast<MappedWater*>(*it);
620
621      //camera and light
622      //this->dataTank->localCamera->apply ();
623      //this->dataTank->localCamera->project ();
624      // prepare for reflection rendering
625      mw->activateRefraction();
626
627
628      LightManager::getInstance()->draw();
629      // draw everything to be included in the reflection
630      this->drawEntityList(State::getObjectManager()->getReflectionList());
631      //       for (unsigned int i = 0; i < this->dataTank->drawLists.size(); ++i)
632      //         this->drawEntityList(State::getObjectManager()->getObjectList(this->dataTank->drawLists[i]));
633
634      // clean up from reflection rendering
635      mw->deactivateRefraction();
636    }
637  }
638}
639
640
641/**
642 *  this render pass renders the whole wolrd
643 */
644void GameWorld::renderPassAll()
645{
646  // clear buffer
647  glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
648  GraphicsEngine* engine = GraphicsEngine::getInstance();
649
650
651  // glEnable(GL_DEPTH_TEST);
652  // glEnable(GL_LIGHTING);
653
654  // set Lighting
655  LightManager::getInstance()->draw();
656
657  // only render the world if its not dedicated mode
658  if( !GraphicsEngine::getInstance()->isDedicated())
659  {
660    /* Draw the BackGround */
661    this->drawEntityList(State::getObjectManager()->getObjectList(OM_BACKGROUND));
662    engine->drawBackgroundElements();
663
664    /* draw all WorldEntiy groups */
665    for (unsigned int i = 0; i < this->dataTank->drawLists.size(); ++i)
666      this->drawEntityList(State::getObjectManager()->getObjectList(this->dataTank->drawLists[i]));
667
668    AtmosphericEngine::getInstance()->draw();
669
670    if( unlikely( this->showBV))
671    {
672      CDEngine* engine = CDEngine::getInstance();
673      for (unsigned int i = 0; i < this->dataTank->drawLists.size(); ++i)
674        engine->drawBV(State::getObjectManager()->getObjectList(this->dataTank->drawLists[i]), this->showBVLevel);
675    }
676
677    if( unlikely(this->showPNodes))
678      PNode::getNullParent()->debugDraw(0);
679
680    // draw the game ruls
681    if( likely(this->dataTank->gameRule != NULL))
682      this->dataTank->gameRule->draw();
683  }
684
685  engine->draw();
686}
687
688
689/**
690 *  shows the loading screen
691 */
692void GameWorld::displayLoadScreen ()
693{
694  PRINTF(3)("GameWorld::displayLoadScreen - start\n");
695  this->dataTank->glmis = new GLMenuImageScreen();
696  this->dataTank->glmis->setMaximum(8);
697  PRINTF(3)("GameWorld::displayLoadScreen - end\n");
698}
699
700
701/**
702 *  removes the loadscreen, and changes over to the game
703 */
704void GameWorld::releaseLoadScreen ()
705{
706  PRINTF(3)("GameWorld::releaseLoadScreen - start\n");
707  this->dataTank->glmis->setValue(this->dataTank->glmis->getMaximum());
708  PRINTF(3)("GameWorld::releaseLoadScreen - end\n");
709}
710
711
712
713/**
714 * @brief toggles the PNode visibility in the world (drawn as boxes)
715 */
716void GameWorld::togglePNodeVisibility()
717{
718  this->showPNodes = !this->showPNodes;
719};
720
721
722/**
723 * @brief toggles the bounding volume (BV) visibility
724*/
725void GameWorld::toggleBVVisibility(int level)
726{
727  if( level < 1)
728    this->showBV = false;
729  else
730  {
731    this->showBV = true;
732    this->showBVLevel = level;
733  }
734
735};
736
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