/* main.cc
   This file is part of the Osirion project and is distributed under 
   the terms and conditions of the GNU General Public License version 2 
*/

// SDL headers
#include <SDL/SDL.h>

// C++ headers
#include <iostream>

// project headers
#include "common/osirion.h"
#include "game/game.h"

#include "input.h"
#include "video.h"

void quit(int exit_code)
{
	SDL_Quit();
	exit(exit_code);
}

int main( int argc, char *argv[] )
{
	std::cout << "The Osirion project " << OSIRION_VERSION << std::endl;

	// Initialize the video subsystem
	video::init();
	if (!video::initialized) {
		quit(1);
	}

	// initialize input
	input::init();

    	// initialize game
	game::init();

	Uint32 startup = SDL_GetTicks();
	while(game::initialized) {		
		Uint32 chrono = SDL_GetTicks();
	
		// overflow protection ~49 days
		if (chrono < startup) {
			startup = chrono;
		}
		
		// update the game chronometers
		float elapsed = (float) ( chrono - startup) / 1000.0f;
		game::update(elapsed);

		// update the video chronometers and draw
		video::draw(elapsed);
		startup = chrono;

		// process input
		input::process();
	}

	video::shutdown();

	quit(0);
}