// $Id: gametimer.cc,v 1.4 2006/08/05 09:08:59 matthew Exp $

//  Fish Supper
//  Copyright (C) 2006 Matthew Clarke <matthew_larcke@lycos.co.uk>
//
//  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 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 "gametimer.h"




// ***************
// * CONSTRUCTOR *
// ***************
GameTimer::GameTimer()
{
    // This doesn't really need setting, but anyway:
    num_ticks_on_pause = 0; 
    
    start_time = SDL_GetTicks();
    
    running = true;

} // GameTimer::GameTimer()

// **************
// * DESTRUCTOR *
// **************
GameTimer::~GameTimer()
{
    // ...
    
} // GameTimer::~GameTimer()




// ********************
// * MEMBER FUNCTIONS *
// ********************

// **************************************************

bool GameTimer::pause()
{
    if (running)
    {
        num_ticks_on_pause = SDL_GetTicks() - start_time;
        running = false;
    } 
    else
    {
        start_time = SDL_GetTicks() - num_ticks_on_pause;
        running = true;
    } // if ... else
    
    return running;

} // GameTimer::pause()

// **************************************************

int GameTimer::get_time() const
{
    return ((running) ? (SDL_GetTicks() - start_time) : num_ticks_on_pause);

} // GameTimer::time()

// **************************************************

void GameTimer::resume()
{
    if (!running)
    {
        start_time = SDL_GetTicks() - num_ticks_on_pause;
        running = true;
    } // if

} // GameTimer::resume() 

// **************************************************