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/**
*
* Tennix! SDL Port
* Copyright (C) 2003, 2007, 2008, 2009 Thomas Perl <thp@thpinfo.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
**/
#include "tennix.h"
#include "util.h"
#include <time.h>
#include <assert.h>
void day_night(unsigned int width, unsigned int* start, unsigned int* end)
{
time_t t = time(NULL);
unsigned int offset = 60; /* set this so the day/night fits for London */
assert(start != NULL);
assert(end != NULL);
*start = (unsigned int)(offset - (t/60)*width/(60*24)) % width;
*end = (unsigned int)(*start + width/2) % width;
}
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