1 /* @(#)getcodi.c 8.1 (Berkeley) 5/31/93 */ 2 /* $NetBSD: getcodi.c,v 1.6 2009/05/24 19:18:44 dholland 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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include "getpar.h" 34 #include "trek.h" 35 36 /* 37 ** get course and distance 38 ** 39 ** The user is asked for a course and distance. This is used by 40 ** move, impulse, and some of the computer functions. 41 ** 42 ** The return value is zero for success, one for an invalid input 43 ** (meaning to drop the request). 44 */ 45 46 int 47 getcodi(int *co, double *di) 48 { 49 50 *co = getintpar("Course"); 51 52 /* course must be in the interval [0, 360] */ 53 if (*co < 0 || *co > 360) 54 return (1); 55 *di = getfltpar("Distance"); 56 57 /* distance must be in the interval [0, 15] */ 58 if (*di <= 0.0 || *di > 15.0) 59 return (1); 60 61 /* good return */ 62 return (0); 63 } 64