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source: orxonox.OLD/trunk/src/subprojects/framework.cc @ 9239

Last change on this file since 9239 was 9110, checked in by bensch, 18 years ago

orxonox/trunk: merged the Presentation back

File size: 9.3 KB
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[4554]1/*
[3140]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: Benjamin Grauer
13   co-programmer: ...
14*/
15
[2931]16#include "framework.h"
[3427]17
18
[4294]19#include "p_node.h"
20#include "state.h"
[4272]21#include "debug.h"
[4300]22#include "light.h"
[7193]23#include "util/loading/resource_manager.h"
[4297]24#include "camera.h"
[7256]25#include "util/preferences.h"
[5485]26#include "globals.h"
[3657]27
[3398]28int verbose;
[4293]29
[4650]30void Framework::init(void)
31{
[7256]32  GraphicsEngine::getInstance()->initFromPreferences();
[4785]33
34  LightManager::getInstance();
35
[9110]36  std::string dataPath = //Preferences::getInstance()->getString(CONFIG_SECTION_GENERAL, CONFIG_NAME_DATADIR, "");
[7711]37      "/home/boenzlip/orxonox/data/trunk/";
38  printf("%s\n", dataPath.c_str());
39  if (!dataPath.empty())
[4650]40  {
[5030]41    if (!ResourceManager::getInstance()->setDataDir(dataPath))
[4650]42    {
[5030]43      PRINTF(1)("Data Could not be located\n");
44      exit(-1);
[4650]45    }
46  }
47
[5484]48  if (!ResourceManager::getInstance()->verifyDataDir(DEFAULT_DATA_DIR_CHECKFILE))
[4650]49  {
[5030]50    PRINTF(1)("The DataDirectory %s could not be verified\n" \
51        "  Please Change in File %s Section %s Entry %s to a suitable value\n",
[7711]52    ResourceManager::getInstance()->getDataDir().c_str(),
[4650]53    DEFAULT_CONFIG_FILE,
[9110]54    CONFIG_SECTION_GENERAL,
[4650]55    CONFIG_NAME_DATADIR);
56    exit(-1);
57  }
58}
59
60
[4330]61void* Framework::mainLoop(void* tmp)
[2748]62{
[4330]63  Framework* framework = Framework::getInstance();
[7159]64
65  // initialize Timing
66  framework->cycle = 0;
67  for (unsigned int i = 0; i < TICK_SMOOTH_VALUE; i++)
68    framework->frameTimes[i] = 100;
69  framework->dtS = 0.0f;
70  framework->lastFrame = SDL_GetTicks ();
71
72
[4331]73  while(!framework->isFinished)
[4293]74    {
[4343]75#ifdef GUI_MODULE
[4358]76      while(gtk_events_pending())
[4554]77        gtk_main_iteration();
[4343]78#endif
[4297]79      // keyhandler returns false if sdl gets quit by some event
[4334]80      framework->eventHandler();
[2939]81
[4297]82      // tick the scene
[4330]83      float dt = framework->tick();
[4297]84
[6074]85      PNode::getNullParent()->updateNode(dt);
[4333]86
[4293]87      // Draw the scene
[4330]88      framework->draw(dt);
[4331]89
[4293]90    }
91}
92
[4297]93bool Framework::draw(float dt)
[4293]94{
[2748]95  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
[7158]96
[7157]97  camera->apply();
98  camera->project();
[4554]99
[7158]100
[4349]101  this->moduleDraw();
[4554]102
103
[2748]104  SDL_GL_SwapBuffers(); // Swap the buffers
105}
[4300]106
107
[4297]108float Framework::tick()
[2748]109{
[7159]110      // CALCULATE FRAMERATE
111  Uint32 frameTimesIndex;
112  Uint32 getTicks;
113  Uint32 i;
[3398]114
[7159]115  frameTimesIndex = this->cycle % TICK_SMOOTH_VALUE;
116  getTicks = SDL_GetTicks();
117  this->frameTimes[frameTimesIndex] = getTicks - this->lastFrame;
118  this->lastFrame = getTicks;
119  ++this->cycle;
120  this->dtS = 0;
121  for (i = 0; i < TICK_SMOOTH_VALUE; i++)
122    this->dtS += this->frameTimes[i];
123  this->dtS = this->dtS / TICK_SMOOTH_VALUE / 1000.0f * speed;
[2963]124
[7159]125  this->camera->tick(dtS);
126
127  this->moduleTick(dtS);
128
129  return dtS;
[4293]130}
[2952]131
[2931]132
[4334]133bool Framework::eventHandler()
[4293]134{
[2748]135  // This is the main loop for the entire program and it will run until done==TRUE
136  {
137    // And poll for events
138    SDL_Event event;
[4305]139    while(SDL_PollEvent(&event))
[4303]140    {
[4334]141      moduleEventHandler(&event);
142
[2748]143      switch (event.type) {
[2931]144      case SDL_MOUSEMOTION:
[4554]145        {
146          Vector view = camera->getTarget()->getAbsCoor() - camera->getAbsCoor();
147          Vector up = Vector(0, 1, 0);
148          up = camera->getAbsDir().apply(up);
149          Vector h = up.cross(view);
150          Vector v = h.cross(view);
151          h.normalize();
152          v.normalize();
153          float distance = view.len();
[4306]154
[4554]155          Vector newCameraPos = camera->getAbsCoor();
156          Vector newTargetPos = camera->getTarget()->getAbsCoor();
157          int changed = 0;
[4358]158
[4554]159          if (mouseDown[1])
160            {
161              newCameraPos = camera->getRelCoor()+ (h * event.motion.xrel - v * event.motion.yrel) * .005 * distance;
162              changed += 1;
163            }
164          if (mouseDown[3])
165            {
166              newTargetPos = camera->getTarget()->getRelCoor() + (h * event.motion.xrel - v * event.motion.yrel) * .005 * distance;
167              changed += 2;
168            }
169
170          Vector newView = newTargetPos - newCameraPos;
171
172          if (changed == 1)
173            camera->setRelCoor(newCameraPos + newView * (1- distance/newView.len()));
174          else if (changed == 2)
175            camera->getTarget()->setRelCoor(newTargetPos - newView * (1-distance/newView.len()));
176          else if (changed == 3)
177            {
178              camera->setRelCoor(newCameraPos);
179              camera->getTarget()->setRelCoor(newTargetPos);
180            }
181
182        }
183        break;
[2931]184      case SDL_MOUSEBUTTONDOWN:
[4554]185        switch (event.button.button)
186          {
187          case 4:
188            PRINTF(4)("MouseWheel up\n");
189            camera->setRelCoor(camera->getRelCoor() + (camera->getTarget()->getAbsCoor() - camera->getAbsCoor())*.1);
190            break;
191          case 5:
192            PRINTF(4)("MouseWheel down\n");
193            camera->setRelCoor(camera->getRelCoor() - (camera->getTarget()->getAbsCoor() - camera->getAbsCoor())*.1);
194            break;
195          case 1:
196          case 2:
197          case 3:
198            mouseDown[event.button.button] = true;
199            break;
200          }
201
202        break;
[2952]203      case SDL_MOUSEBUTTONUP:
[4554]204        switch (event.button.button)
205          {
206          case 1:
207          case 2:
208          case 3:
209            mouseDown[event.button.button] = false;
210            break;
211          }
212        break;
[4302]213      case SDL_VIDEORESIZE:
[4785]214        GraphicsEngine::getInstance()->resolutionChanged(event.resize);
[4554]215        break;
[3211]216      case SDL_KEYDOWN:
[4554]217        switch (event.key.keysym.sym)
218          {
219          case SDLK_q:
220          case SDLK_ESCAPE:
[4343]221#ifdef GUI_MODULE
[4554]222            quitGui(NULL, NULL);
[4343]223#else
[4554]224            this->quit();
[4343]225#endif
[4554]226            break;
[4724]227          case SDLK_a:
[4554]228            camera->setRelCoor(camera->getRelCoor() + (camera->getTarget()->getAbsCoor() - camera->getAbsCoor())*.1);
229            break;
230          case SDLK_z:
231            camera->setRelCoor(camera->getRelCoor() - (camera->getTarget()->getAbsCoor() - camera->getAbsCoor())*.1);
232            break;
233          case SDLK_r:
234            camera->setAbsCoor(Vector(10, 10, 10));
235            camera->getTarget()->setAbsCoor(Vector());
236            break;
237          case SDLK_h:
238            this->printHelp();
239            break;
[4647]240          case SDLK_c:
[4554]241            for (int i = 0; i < 3; i++)
242              {
243                backgroundColor[i] += .1;
244                if (backgroundColor[i] > 1.0)
245                  backgroundColor[i] = 1.0;
246                GraphicsEngine::setBackgroundColor(backgroundColor[0], backgroundColor[1], backgroundColor[2], backgroundColor[3]);
247              }
248            break;
[4647]249          case SDLK_x:
[4554]250            for (int i = 0; i < 3; i++)
251              {
252                backgroundColor[i] -= .1;
253                if (backgroundColor[i] < 0.0)
254                  backgroundColor[i] = 0.0;
255                GraphicsEngine::setBackgroundColor(backgroundColor[0], backgroundColor[1], backgroundColor[2], backgroundColor[3]);
256              }
257            break;
258          }
259        break;
260
[2748]261        // If a quit event was recieved
[2863]262      case SDL_QUIT:
[4554]263        // then we're done and we'll end this program
[4343]264#ifdef GUI_MODULE
[4554]265            quitGui(NULL, NULL);
[4343]266#else
[4554]267            this->quit();
[4343]268#endif
[4554]269        break;
[2863]270      default:
[4554]271        break;
[2748]272      }
[2952]273
[2748]274    }
275
276    // Get the state of the keyboard keys
277    keys = SDL_GetKeyState(NULL);
278
279    // and check if ESCAPE has been pressed. If so then quit
[4293]280    if(keys[SDLK_ESCAPE]) return false;
[2748]281  }
[4293]282  return true;
283}
[2748]284
[4331]285void Framework::quit(void)
286{
287  this->isFinished = true;
288}
289
[4317]290Framework* Framework::singletonRef = NULL;
[4293]291
[4300]292Framework::Framework()
[4293]293{
[4650]294  this->init();
295
[4785]296  camera = new Camera();
[4903]297  State::setCamera(camera, camera->getTarget());
[4785]298  camera->setAbsCoor(Vector(10, 10, 10));
299
[4331]300  this->isFinished = false;
301
[4304]302  this->lastFrame = 0;
[4293]303
304
305  // Build the font from a TGA image font.tga in the data directory
306  // Hide the mouse cursor
307  SDL_ShowCursor(2);
308
[4374]309  for (int i = 0; i < MOUSE_BUTTON_COUNT; i++)
[4306]310    mouseDown[i] = false;
[4374]311  for (int i = 0; i < 4; i++)
312    backgroundColor[i] = 0;
[4297]313}
314
315Framework::~Framework()
316{
317  delete GraphicsEngine::getInstance();
318
[9110]319  Framework::singletonRef = NULL;
[4297]320}
321
[4307]322
323
324void Framework::printHelp(void) const
325{
[4309]326  PRINT(0)(" Help for the frameWork\n");
327  PRINT(0)("========================\n");
[4374]328  PRINT(0)("h - print this Help\n");
[4359]329  PRINT(0)("a - zoom in\n");
330  PRINT(0)("z - zoom out\n");
[4360]331  PRINT(0)("r - reset camera position\n");
[4647]332  PRINT(0)("x - background color darker\n");
333  PRINT(0)("c - background color brighter\n");
[4307]334
[4374]335
[4360]336  PRINT(0)("\n");
337  PRINT(0)("mouse wheel - zoom\n");
338  PRINT(0)("mouse left button - rotate the camera around its target\n");
339  PRINT(0)("mouse right button - rotate the camera's target around the camera\n");
340  PRINT(0)("mouse left-and-right button - move the camera and the target\n");
[4554]341
[4333]342  this->moduleHelp();
[4307]343
344}
345
[4343]346#ifdef GUI_MODULE
[4330]347int quitGui(GtkWidget* widget, void* data)
348{
349#ifdef HAVE_GTK2
350  while(gtk_events_pending()) gtk_main_iteration();
[4331]351  Framework::getInstance()->quit();
[4330]352#endif /* HAVE_GTK2 */
353}
[4343]354#endif
[4330]355
[4297]356int main(int argc, char *argv[])
357{
358  verbose = 3;
[4554]359
[4317]360  Framework* framework = Framework::getInstance();
[4316]361
[4343]362  framework->moduleInit(argc, argv);
363#ifdef GUI_MODULE
364  framework->moduleInitGui(argc, argv);
365#endif
[4331]366  framework->mainLoop(NULL);
[4297]367
368  delete framework;
[2748]369  // Kill the GL & SDL screens
370  // And quit
371  return 0;
372}
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