misc.c

/*-
 * Copyright (c) 1994, 1995, 1999
 *      Simon Burge.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <curses.h>
#include <stdlib.h>

#include "zombies.h"

static int rnd(int range);

/*
 * flush_in:
 *	Flush all pending input.
 */

void
flush_in(void)
{
# ifdef TIOCFLUSH
	ioctl(fileno(stdin), TIOCFLUSH, NULL);
# else TIOCFLUSH
	crmode();
# endif TIOCFLUSH
}


/*
 * query:
 *	Ask a question and get a yes or no answer.  Default is "no".
 */

int
query(char *prompt)
{
	int	c, y, x, retval;

	getyx(stdscr, y, x);
	move(Y_PROMPT, X_PROMPT);
	addstr(prompt);
	clrtoeol();
	refresh();
	retval = ((c = getchar()) == 'y' || c == 'Y');
	move(Y_PROMPT, X_PROMPT);
	clrtoeol();
	move(y, x);
	return(retval);
}



/*
 * rnd_pos:
 *	Pick a random, unoccupied position
 */
COORD *
rnd_pos(void)
{
	static COORD	pos;

	do {
		pos.y = rnd(Y_FIELDSIZE - 1) + 1;
		pos.x = rnd(X_FIELDSIZE - 1) + 1;
		refresh();
	} while (Field[pos.y][pos.x] != BACKGR);
	return(&pos);
}

static int
rnd(int range)
{
	return(rand() % range);
}