source: orxonox.OLD/orxonox/branches/chris/src/orxonox.cc @ 2103

/* 
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   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, 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.  


   ### File Specific:
   main-programmer: Patrick Boenzli
   co-programmer: Christian Meyer
*/

#include "orxonox.h"
#include "world.h"
#include "camera.h"
#include "data_tank.h"
#include "command_node.h"

using namespace std;

Orxonox::Orxonox () 
{
  pause = false;
}



Orxonox::~Orxonox () 
{
        Orxonox::singleton_ref = NULL;
        if( world != NULL) delete world;
        if( localinput != NULL) delete world;
        if( localcamera != NULL) delete localcamera;
        if( resources != NULL) delete resources;
}


/* this is a singleton class to prevent duplicates */
Orxonox* Orxonox::singleton_ref = 0;
World* Orxonox::world = 0;
bool Orxonox::pause = false;


Orxonox* Orxonox::getInstance (void)
{
  if (singleton_ref == NULL)
    singleton_ref = new Orxonox();
  return singleton_ref;
}

void Orxonox::get_config_file (int argc, char** argv)
{
/*      char* path;
        #ifdef __WIN32__
        path = getenv("");
        #else
        path = getenv("HOME");
        #endif
        
        if( path != NULL) strcpy (configfilename, path);
        else strcpy (configfilename, "./");
        strcat (configfilename, "/.orxonox.conf");*/
        
        strcpy (configfilename, "./orxonox.conf");
}

int Orxonox::init (int argc, char** argv)
{
                // parse command line
                // config file
                
        get_config_file (argc, argv);
        
                // initialize SDL
  printf("> Initializing SDL\n");
  if( SDL_Init (SDL_INIT_EVERYTHING) == -1)
  {
    printf ("Could not SDL_Init(): %s\n", SDL_GetError());
    return -1;
  }
  
        // initialize everything
  printf("> Initializing video\n");
        if( init_video () == -1) return -1;
  printf("> Initializing sound\n");
        if( init_sound () == -1) return -1;
  printf("> Initializing input\n");
        if( init_input () == -1) return -1;
  printf("> Initializing networking\n");
        if( init_networking () == -1) return -1;
  printf("> Initializing resources\n");
        if( init_resources () == -1) return -1;
  printf("> Initializing world\n");
        if( init_world () == -1) return -1;
        
        return 0;
}

int Orxonox::init_video () 
{
  // Set video mode
  // TO DO: parse arguments for settings
  SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
  SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
  SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
  SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
  
  int bpp = 16;
  int width = 640;
  int height = 480;
  Uint32 flags = SDL_OPENGL | SDL_GL_DOUBLEBUFFER;
  
  if( (screen = SDL_SetVideoMode (width, height, bpp, flags)) == NULL)
  {
    printf ("Could not SDL_SetVideoMode(%d, %d, %d, %d): %s\n", width, height, bpp, flags, SDL_GetError());
    SDL_Quit();
    return -1;
  }
  
  // Set window labeling
  // TO DO: Add version information to caption
  SDL_WM_SetCaption( "Orxonox", "Orxonox");
  
  // TO DO: Create a cool icon and use it here
  // SDL_WM_SetIcon(SDL_Surface *icon, Uint8 *mask);  

  // OpenGL stuff
  // (Is this all we initialize globally???)
  glClearColor(0.0, 0.0, 0.0, 0.0);
  glEnable(GL_DEPTH_TEST);
  glShadeModel(GL_FLAT);
  
  // create camera
  localcamera = new Camera();
  
  return 0;
}

int Orxonox::init_sound () 
{
        printf("Not yet implemented\n");
        return 0;
}

int Orxonox::init_input () 
{
        // create localinput
        localinput = new CommandNode( configfilename);
        
        return 0;
}


int Orxonox::init_networking () 
{
        printf("Not yet implemented\n");
        return 0;
}

int Orxonox::init_resources () 
{
        printf("Not yet implemented\n");
        return 0;
}

int Orxonox::init_world () 
{
        world = new World();
        
        // TO DO: replace this with a menu/intro
        world->load_debug_level();
        
        return 0;
}

void Orxonox::quitGame() 
{
        bQuitOrxonox = true;
  //cout << "finished garbage colletion, quitting..." << endl;
}
void Orxonox::mainLoop()
{
        lastframe = SDL_GetTicks();

  // This is where everything is run
  while( !bQuitOrxonox)
  {
        // Network
        synchronize();
    // Process input
    handle_input();
    // Process time
    time_slice();
    // Process collision
    collision();
    // Draw
    display();
  }
}

void Orxonox::event_handler (SDL_Event* event)
{
        // Handle special events such as reshape, quit, focus changes
}

void Orxonox::synchronize ()
{
        // Get remote input
        // Update synchronizables
}

void Orxonox::handle_input ()
{
        // localinput
                localinput->process();
        // remoteinput
}

void Orxonox::time_slice ()
{
        Uint32 curframe = SDL_GetTicks();
        if( !pause)
        {
                world->time_slice (curframe - lastframe);
                world->update ();
                localcamera->time_slice (curframe - lastframe);
        }
        lastframe = curframe;
}

void Orxonox::collision ()
{
        world->collide ();
}

void Orxonox::display ()
{
                // clear buffer
        glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
                // set camera
        localcamera->apply ();
                // draw world
        world->draw ();
                // draw HUD
                // flip buffers
        SDL_Flip( screen);
}

Camera* Orxonox::get_camera ()
{
        return localcamera;
}

CommandNode* Orxonox::get_localinput ()
{
        return localinput;
}

World* Orxonox::get_world ()
{
        return world;
}

int main (int argc, char** argv) 
{  
  Orxonox *orx = Orxonox::getInstance();
  
  if( (*orx).init(argc, argv) == -1)
  {
    printf("! Orxonox initialization failed\n");
    return -1;
  }
        
  (*orx).mainLoop();
  
  return 0;
}