1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)getcodi.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/trek/getcodi.c,v 1.2 1999/11/30 03:49:48 billf Exp $ 35 * $DragonFly: src/games/trek/getcodi.c,v 1.2 2003/06/17 04:25:25 dillon Exp $ 36 */ 37 38 # include "getpar.h" 39 40 /* 41 ** get course and distance 42 ** 43 ** The user is asked for a course and distance. This is used by 44 ** move, impulse, and some of the computer functions. 45 ** 46 ** The return value is zero for success, one for an invalid input 47 ** (meaning to drop the request). 48 */ 49 50 getcodi(co, di) 51 int *co; 52 double *di; 53 { 54 55 *co = getintpar("Course"); 56 57 /* course must be in the interval [0, 360] */ 58 if (*co < 0 || *co > 360) 59 return (1); 60 *di = getfltpar("Distance"); 61 62 /* distance must be in the interval [0, 15] */ 63 if (*di <= 0.0 || *di > 15.0) 64 return (1); 65 66 /* good return */ 67 return (0); 68 } 69