xref: /openbsd/games/trek/systemname.c (revision 78b63d65)
1 /*	$OpenBSD: systemname.c,v 1.3 1999/07/31 18:49:00 pjanzen 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. 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
39 static char sccsid[] = "@(#)systemname.c	8.1 (Berkeley) 5/31/93";
40 #else
41 static char rcsid[] = "$OpenBSD: systemname.c,v 1.3 1999/07/31 18:49:00 pjanzen Exp $";
42 #endif
43 #endif /* not lint */
44 
45 #include "trek.h"
46 
47 /*
48 **  RETRIEVE THE STARSYSTEM NAME
49 **
50 **	Very straightforward, this routine just gets the starsystem
51 **	name.  It returns zero if none in the specified quadrant
52 **	(which, by the way, is passed it).
53 **
54 **	This routine knows all about such things as distressed
55 **	starsystems, etc.
56 */
57 
58 const char *
59 systemname(q1)
60      const struct quad	*q1;
61 {
62 	const struct quad	*q;
63 	register int		i;
64 
65 	q = q1;
66 
67 	i = q->qsystemname;
68 	if (i & Q_DISTRESSED)
69 		i = Event[i & Q_SYSTEM].systemname;
70 
71 	i &= Q_SYSTEM;
72 	if (i == 0)
73 		return (0);
74 	return (Systemname[i]);
75 }
76