text: /*-
   * Copyright (c) 1980, 1993
   *	The Regents of the University of California.  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.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * 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.
   *
   * @(#)getcodi.c	8.1 (Berkeley) 5/31/93
   * $FreeBSD: src/games/trek/getcodi.c,v 1.2 1999/11/30 03:49:48 billf Exp $
   * $DragonFly: src/games/trek/getcodi.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
   */
  
  #include "getpar.h"
  #include "trek.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).
  */
  
  bool
  getcodi(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);
  }
  