xref: /openbsd/games/trek/kill.c (revision df930be7)
1 /*	$NetBSD: kill.c,v 1.3 1995/04/22 10:59:06 cgd 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)kill.c	8.1 (Berkeley) 5/31/93";
39 #else
40 static char rcsid[] = "$NetBSD: kill.c,v 1.3 1995/04/22 10:59:06 cgd Exp $";
41 #endif
42 #endif /* not lint */
43 
44 # include	"trek.h"
45 
46 /*
47 **  KILL KILL KILL !!!
48 **
49 **	This file handles the killing off of almost anything.
50 */
51 
52 /*
53 **  Handle a Klingon's death
54 **
55 **	The Klingon at the sector given by the parameters is killed
56 **	and removed from the Klingon list.  Notice that it is not
57 **	removed from the event list; this is done later, when the
58 **	the event is to be caught.  Also, the time left is recomputed,
59 **	and the game is won if that was the last klingon.
60 */
61 
62 killk(ix, iy)
63 int	ix, iy;
64 {
65 	register int		i, j;
66 
67 	printf("   *** Klingon at %d,%d destroyed ***\n", ix, iy);
68 
69 	/* remove the scoundrel */
70 	Now.klings -= 1;
71 	Sect[ix][iy] = EMPTY;
72 	Quad[Ship.quadx][Ship.quady].klings -= 1;
73 	/* %%% IS THIS SAFE???? %%% */
74 	Quad[Ship.quadx][Ship.quady].scanned -= 100;
75 	Game.killk += 1;
76 
77 	/* find the Klingon in the Klingon list */
78 	for (i = 0; i < Etc.nkling; i++)
79 		if (ix == Etc.klingon[i].x && iy == Etc.klingon[i].y)
80 		{
81 			/* purge him from the list */
82 			Etc.nkling -= 1;
83 			for (; i < Etc.nkling; i++)
84 				bmove(&Etc.klingon[i+1], &Etc.klingon[i], sizeof Etc.klingon[i]);
85 			break;
86 		}
87 
88 	/* find out if that was the last one */
89 	if (Now.klings <= 0)
90 		win();
91 
92 	/* recompute time left */
93 	Now.time = Now.resource / Now.klings;
94 	return;
95 }
96 
97 
98 /*
99 **  handle a starbase's death
100 */
101 
102 killb(qx, qy)
103 int	qx, qy;
104 {
105 	register struct quad	*q;
106 	register struct xy	*b;
107 
108 	q = &Quad[qx][qy];
109 
110 	if (q->bases <= 0)
111 		return;
112 	if (!damaged(SSRADIO))
113 		/* then update starchart */
114 		if (q->scanned < 1000)
115 			q->scanned -= 10;
116 		else
117 			if (q->scanned > 1000)
118 				q->scanned = -1;
119 	q->bases = 0;
120 	Now.bases -= 1;
121 	for (b = Now.base; ; b++)
122 		if (qx == b->x && qy == b->y)
123 			break;
124 	bmove(&Now.base[Now.bases], b, sizeof *b);
125 	if (qx == Ship.quadx && qy == Ship.quady)
126 	{
127 		Sect[Etc.starbase.x][Etc.starbase.y] = EMPTY;
128 		if (Ship.cond == DOCKED)
129 			undock();
130 		printf("Starbase at %d,%d destroyed\n", Etc.starbase.x, Etc.starbase.y);
131 	}
132 	else
133 	{
134 		if (!damaged(SSRADIO))
135 		{
136 			printf("Uhura: Starfleet command reports that the starbase in\n");
137 			printf("   quadrant %d,%d has been destroyed\n", qx, qy);
138 		}
139 		else
140 			schedule(E_KATSB | E_GHOST, 1e50, qx, qy, 0);
141 	}
142 }
143 
144 
145 /**
146  **	kill an inhabited starsystem
147  **/
148 
149 kills(x, y, f)
150 int	x, y;	/* quad coords if f == 0, else sector coords */
151 int	f;	/* f != 0 -- this quad;  f < 0 -- Enterprise's fault */
152 {
153 	register struct quad	*q;
154 	register struct event	*e;
155 	register char		*name;
156 	char			*systemname();
157 
158 	if (f)
159 	{
160 		/* current quadrant */
161 		q = &Quad[Ship.quadx][Ship.quady];
162 		Sect[x][y] = EMPTY;
163 		name = systemname(q);
164 		if (name == 0)
165 			return;
166 		printf("Inhabited starsystem %s at %d,%d destroyed\n",
167 			name, x, y);
168 		if (f < 0)
169 			Game.killinhab += 1;
170 	}
171 	else
172 	{
173 		/* different quadrant */
174 		q = &Quad[x][y];
175 	}
176 	if (q->qsystemname & Q_DISTRESSED)
177 	{
178 		/* distressed starsystem */
179 		e = &Event[q->qsystemname & Q_SYSTEM];
180 		printf("Distress call for %s invalidated\n",
181 			Systemname[e->systemname]);
182 		unschedule(e);
183 	}
184 	q->qsystemname = 0;
185 	q->stars -= 1;
186 }
187 
188 
189 /**
190  **	"kill" a distress call
191  **/
192 
193 killd(x, y, f)
194 int	x, y;		/* quadrant coordinates */
195 int	f;		/* set if user is to be informed */
196 {
197 	register struct event	*e;
198 	register int		i;
199 	register struct quad	*q;
200 
201 	q = &Quad[x][y];
202 	for (i = 0; i < MAXEVENTS; i++)
203 	{
204 		e = &Event[i];
205 		if (e->x != x || e->y != y)
206 			continue;
207 		switch (e->evcode)
208 		{
209 		  case E_KDESB:
210 			if (f)
211 			{
212 				printf("Distress call for starbase in %d,%d nullified\n",
213 					x, y);
214 				unschedule(e);
215 			}
216 			break;
217 
218 		  case E_ENSLV:
219 		  case E_REPRO:
220 			if (f)
221 			{
222 				printf("Distress call for %s in quadrant %d,%d nullified\n",
223 					Systemname[e->systemname], x, y);
224 				q->qsystemname = e->systemname;
225 				unschedule(e);
226 			}
227 			else
228 			{
229 				e->evcode |= E_GHOST;
230 			}
231 		}
232 	}
233 }
234