xref: /openbsd/games/trek/systemname.c (revision db3296cf)
1 /*	$OpenBSD: systemname.c,v 1.5 2003/06/03 03:01:42 millert Exp $	*/
2 /*	$NetBSD: systemname.c,v 1.3 1995/04/22 10:59:32 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. 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 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)systemname.c	8.1 (Berkeley) 5/31/93";
36 #else
37 static char rcsid[] = "$OpenBSD: systemname.c,v 1.5 2003/06/03 03:01:42 millert Exp $";
38 #endif
39 #endif /* not lint */
40 
41 #include "trek.h"
42 
43 /*
44 **  RETRIEVE THE STARSYSTEM NAME
45 **
46 **	Very straightforward, this routine just gets the starsystem
47 **	name.  It returns zero if none in the specified quadrant
48 **	(which, by the way, is passed it).
49 **
50 **	This routine knows all about such things as distressed
51 **	starsystems, etc.
52 */
53 
54 const char *
55 systemname(q1)
56      const struct quad	*q1;
57 {
58 	const struct quad	*q;
59 	int			i;
60 
61 	q = q1;
62 
63 	i = q->qsystemname;
64 	if (i & Q_DISTRESSED)
65 		i = Event[i & Q_SYSTEM].systemname;
66 
67 	i &= Q_SYSTEM;
68 	if (i == 0)
69 		return (0);
70 	return (Systemname[i]);
71 }
72