/*
 * src/cgol.c
 * Curses Game of Life
 *
 * Copyright (C) 2011 Patrick "P. J." McDermott
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <curses.h>

void usage(const char *invocation);
void init_curses();
void init_game();
void fini_game();
void fini_curses();

static int width, height, seedprob, genrate, gens;
static bool *grid_cur, *grid_next;

int
main(int argc, char **argv)
{
	int opt;

	while ((opt = getopt(argc, argv, "w:h:s:r:n:")) != -1) {
		switch (opt) {
			case 'w':
				width = atoi(optarg);
				break;
			case 'h':
				height = atoi(optarg);
				break;
			case 's':
				seedprob = atoi(optarg);
				break;
			case 'r':
				genrate = atoi(optarg);
				break;
			case 'n':
				gens = atoi(optarg);
				break;
			default:
				usage(argv[0]);
				return 1;
		}
	}

	init_curses();
	init_game();

	mvprintw(1, 1, "Welcome to cgol!");
	getch();

	fini_game();
	fini_curses();

	return 0;
}

void
init_curses()
{
	initscr();
	noecho();
	raw();
}

void
init_game()
{
	size_t size;

	size = sizeof(bool) * width * height;
	grid_cur = malloc(size);
	memset(grid_cur, 0, size);
	grid_next = malloc(size);
	memset(grid_next, 0, size);
}

void
fini_game()
{
	free(grid_cur);
	free(grid_next);
}

void
fini_curses()
{
	endwin();
}

void
usage(const char *invocation)
{
	printf("Usage: %s [-w WIDTH] [-h HEIGHT] [-s SEEDPROB] [-r RATE] "
			"[-n GENERATIONS]", invocation);
}