add Berkeley copyright

[unix-history] / usr / src / games / trek / getcodi.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)getcodi.c	5.3 (Berkeley) %G%";
#endif /* not lint */

# include	"getpar.h"

/*
**  get course and distance
**
**	The user is asked for a course and distance.  This is used by
**	move, impulse, and some of the computer functions.
**
**	The return value is zero for success, one for an invalid input
**	(meaning to drop the request).
*/

getcodi(co, di)
int	*co;
double	*di;
{

	*co = getintpar("Course");

	/* course must be in the interval [0, 360] */
	if (*co < 0 || *co > 360)
		return (1);
	*di = getfltpar("Distance");

	/* distance must be in the interval [0, 15] */
	if (*di <= 0.0 || *di > 15.0)
		return (1);

	/* good return */
	return (0);
}