xref: /original-bsd/games/trek/lrscan.c (revision fa921481)
1 /*
2  * Copyright (c) 1980 Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)lrscan.c	5.4 (Berkeley) 06/01/90";
10 #endif /* not lint */
11 
12 # include	"trek.h"
13 
14 /*
15 **  LONG RANGE OF SCANNERS
16 **
17 **	A summary of the quadrants that surround you is printed.  The
18 **	hundreds digit is the number of Klingons in the quadrant,
19 **	the tens digit is the number of starbases, and the units digit
20 **	is the number of stars.  If the printout is "///" it means
21 **	that that quadrant is rendered uninhabitable by a supernova.
22 **	It also updates the "scanned" field of the quadrants it scans,
23 **	for future use by the "chart" option of the computer.
24 */
25 
26 lrscan()
27 {
28 	register int			i, j;
29 	register struct quad		*q;
30 
31 	if (check_out(LRSCAN))
32 	{
33 		return;
34 	}
35 	printf("Long range scan for quadrant %d,%d\n\n", Ship.quadx, Ship.quady);
36 
37 	/* print the header on top */
38 	for (j = Ship.quady - 1; j <= Ship.quady + 1; j++)
39 	{
40 		if (j < 0 || j >= NQUADS)
41 			printf("      ");
42 		else
43 			printf("     %1d", j);
44 	}
45 
46 	/* scan the quadrants */
47 	for (i = Ship.quadx - 1; i <= Ship.quadx + 1; i++)
48 	{
49 		printf("\n  -------------------\n");
50 		if (i < 0 || i >= NQUADS)
51 		{
52 			/* negative energy barrier */
53 			printf("  !  *  !  *  !  *  !");
54 			continue;
55 		}
56 
57 		/* print the left hand margin */
58 		printf("%1d !", i);
59 		for (j = Ship.quady - 1; j <= Ship.quady + 1; j++)
60 		{
61 			if (j < 0 || j >= NQUADS)
62 			{
63 				/* negative energy barrier again */
64 				printf("  *  !");
65 				continue;
66 			}
67 			q = &Quad[i][j];
68 			if (q->stars < 0)
69 			{
70 				/* supernova */
71 				printf(" /// !");
72 				q->scanned = 1000;
73 				continue;
74 			}
75 			q->scanned = q->klings * 100 + q->bases * 10 + q->stars;
76 			printf(" %3d !", q->scanned);
77 		}
78 	}
79 	printf("\n  -------------------\n");
80 	return;
81 }
82