xref: /netbsd/games/trek/initquad.c (revision 6550d01e)
1 /*	$NetBSD: initquad.c,v 1.7 2009/05/24 21:44:56 dholland Exp $	*/
2 
3 /*
4  * Copyright (c) 1980, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)initquad.c	8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: initquad.c,v 1.7 2009/05/24 21:44:56 dholland Exp $");
38 #endif
39 #endif /* not lint */
40 
41 #include <stdio.h>
42 #include "trek.h"
43 
44 /*
45 **  Paramize Quadrant Upon Entering
46 **
47 **	A quadrant is initialized from the information held in the
48 **	Quad matrix.  Basically, everything is just initialized
49 **	randomly, except for the starship, which goes into a fixed
50 **	sector.
51 **
52 **	If there are Klingons in the quadrant, the captain is informed
53 **	that the condition is RED, and he is given a chance to put
54 **	his shields up if the computer is working.
55 **
56 **	The flag `f' is set to disable the check for condition red.
57 **	This mode is used in situations where you know you are going
58 **	to be docked, i.e., abandon() and help().
59 */
60 
61 void
62 initquad(int f)
63 {
64 	int		i, j;
65 	int		rx, ry;
66 	int		nbases, nstars;
67 	struct quad	*q;
68 	int		nholes;
69 
70 	q = &Quad[Ship.quadx][Ship.quady];
71 
72 	/* ignored supernova'ed quadrants (this is checked again later anyway */
73 	if (q->stars < 0)
74 		return;
75 	Etc.nkling = q->klings;
76 	nbases = q->bases;
77 	nstars = q->stars;
78 	nholes = q->holes;
79 
80 	/* have we blundered into a battle zone w/ shields down? */
81 	if (Etc.nkling > 0 && !f) {
82 		printf("Condition RED\n");
83 		Ship.cond = RED;
84 		if (!damaged(COMPUTER))
85 			shield(1);
86 	}
87 
88 	/* clear out the quadrant */
89 	for (i = 0; i < NSECTS; i++)
90 		for (j = 0; j < NSECTS; j++)
91 			Sect[i][j] = EMPTY;
92 
93 	/* initialize Enterprise */
94 	Sect[Ship.sectx][Ship.secty] = Ship.ship;
95 
96 	/* initialize Klingons */
97 	for (i = 0; i < Etc.nkling; i++) {
98 		sector(&rx, &ry);
99 		Sect[rx][ry] = KLINGON;
100 		Etc.klingon[i].x = rx;
101 		Etc.klingon[i].y = ry;
102 		Etc.klingon[i].power = Param.klingpwr;
103 		Etc.klingon[i].srndreq = 0;
104 	}
105 	compkldist(1);
106 
107 	/* initialize star base */
108 	if (nbases > 0) {
109 		sector(&rx, &ry);
110 		Sect[rx][ry] = BASE;
111 		Etc.starbase.x = rx;
112 		Etc.starbase.y = ry;
113 	}
114 
115 	/* initialize inhabited starsystem */
116 	if (q->qsystemname != 0) {
117 		sector(&rx, &ry);
118 		Sect[rx][ry] = INHABIT;
119 		nstars -= 1;
120 	}
121 
122 	/* initialize black holes */
123 	for (i = 0; i < nholes; i++) {
124 		sector(&rx, &ry);
125 		Sect[rx][ry] = HOLE;
126 	}
127 
128 	/* initialize stars */
129 	for (i = 0; i < nstars; i++) {
130 		sector(&rx, &ry);
131 		Sect[rx][ry] = STAR;
132 	}
133 	Move.newquad = 1;
134 }
135 
136 
137 void
138 sector(int *x, int *y)
139 {
140 	int	i, j;
141 
142 	do {
143 		i = ranf(NSECTS);
144 		j = ranf(NSECTS);
145 	} while (Sect[i][j] != EMPTY);
146 	*x = i;
147 	*y = j;
148 	return;
149 }
150