getcodi.c revision 1.2
1/* $OpenBSD: getcodi.c,v 1.2 1998/08/19 07:41:35 pjanzen Exp $ */ 2/* $NetBSD: getcodi.c,v 1.3 1995/04/22 10:58:55 cgd Exp $ */ 3 4/* 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38#if 0 39static char sccsid[] = "@(#)getcodi.c 8.1 (Berkeley) 5/31/93"; 40#else 41static char rcsid[] = "$OpenBSD: getcodi.c,v 1.2 1998/08/19 07:41:35 pjanzen Exp $"; 42#endif 43#endif /* not lint */ 44 45#include "getpar.h" 46#include "trek.h" 47 48/* 49** get course and distance 50** 51** The user is asked for a course and distance. This is used by 52** move, impulse, and some of the computer functions. 53** 54** The return value is zero for success, one for an invalid input 55** (meaning to drop the request). 56*/ 57 58int 59getcodi(co, di) 60 int *co; 61 double *di; 62{ 63 *co = getintpar("Course"); 64 65 /* course must be in the interval [0, 360] */ 66 if (*co < 0 || *co > 360) 67 return (1); 68 *di = getfltpar("Distance"); 69 70 /* distance must be in the interval [0, 15] */ 71 if (*di <= 0.0 || *di > 15.0) 72 return (1); 73 74 /* good return */ 75 return (0); 76} 77