xref: /dragonfly/games/trek/kill.c (revision 04277bb2)
1 /*	@(#)kill.c	8.1 (Berkeley) 5/31/93				*/
2 /*	$NetBSD: kill.c,v 1.11 2009/05/24 22:55:03 dholland 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 #include <stdio.h>
34 #include <limits.h>
35 #include "trek.h"
36 
37 /*
38 **  KILL KILL KILL !!!
39 **
40 **	This file handles the killing off of almost anything.
41 */
42 
43 /*
44 **  Handle a Klingon's death
45 **
46 **	The Klingon at the sector given by the parameters is killed
47 **	and removed from the Klingon list.  Notice that it is not
48 **	removed from the event list; this is done later, when the
49 **	the event is to be caught.  Also, the time left is recomputed,
50 **	and the game is won if that was the last klingon.
51 */
52 
53 void
54 killk(int ix, int iy)
55 {
56 	int		i;
57 
58 	printf("   *** Klingon at %d,%d destroyed ***\n", ix, iy);
59 
60 	/* remove the scoundrel */
61 	Now.klings -= 1;
62 	Sect[ix][iy] = EMPTY;
63 	Quad[Ship.quadx][Ship.quady].klings -= 1;
64 	/* %%% IS THIS SAFE???? %%% */
65 	Quad[Ship.quadx][Ship.quady].scanned -= 100;
66 	Game.killk += 1;
67 
68 	/* find the Klingon in the Klingon list */
69 	for (i = 0; i < Etc.nkling; i++)
70 		if (ix == Etc.klingon[i].x && iy == Etc.klingon[i].y) {
71 			/* purge him from the list */
72 			Etc.nkling -= 1;
73 			for (; i < Etc.nkling; i++)
74 				Etc.klingon[i] = Etc.klingon[i+1];
75 			break;
76 		}
77 
78 	/* find out if that was the last one */
79 	if (Now.klings <= 0)
80 		win();
81 
82 	/* recompute time left */
83 	Now.time = Now.resource / Now.klings;
84 	return;
85 }
86 
87 
88 /*
89 **  handle a starbase's death
90 */
91 
92 void
93 killb(int qx, int qy)
94 {
95 	struct quad	*q;
96 	struct xy	*b;
97 
98 	q = &Quad[qx][qy];
99 
100 	if (q->bases <= 0)
101 		return;
102 	if (!damaged(SSRADIO)) {
103 		/* then update starchart */
104 		if (q->scanned < 1000)
105 			q->scanned -= 10;
106 		else
107 			if (q->scanned > 1000)
108 				q->scanned = -1;
109 	}
110 	q->bases = 0;
111 	Now.bases -= 1;
112 	for (b = Now.base; ; b++)
113 		if (qx == b->x && qy == b->y)
114 			break;
115 	*b = Now.base[Now.bases];
116 	if (qx == Ship.quadx && qy == Ship.quady) {
117 		Sect[Etc.starbase.x][Etc.starbase.y] = EMPTY;
118 		if (Ship.cond == DOCKED)
119 			undock(0);
120 		printf("Starbase at %d,%d destroyed\n",
121 			Etc.starbase.x, Etc.starbase.y);
122 	} else {
123 		if (!damaged(SSRADIO)) {
124 			printf("Uhura: Starfleet command reports that the "
125 			       "starbase in\n");
126 			printf("   quadrant %d,%d has been destroyed\n",
127 				qx, qy);
128 		}
129 		else
130 			schedule(E_KATSB | E_GHOST, TOOLARGE, qx, qy, 0);
131 	}
132 }
133 
134 
135 /**
136  **	kill an inhabited starsystem
137  **
138  ** x, y are quad coords if f == 0, else sector coords
139  ** f != 0 -- this quad;  f < 0 -- Enterprise's fault
140  **/
141 
142 void
143 kills(int x, int y, int f)
144 {
145 	struct quad	*q;
146 	struct event	*e;
147 	const char	*name;
148 
149 	if (f) {
150 		/* current quadrant */
151 		q = &Quad[Ship.quadx][Ship.quady];
152 		Sect[x][y] = EMPTY;
153 		name = systemname(q);
154 		if (name == 0)
155 			return;
156 		printf("Inhabited starsystem %s at %d,%d destroyed\n",
157 			name, x, y);
158 		if (f < 0)
159 			Game.killinhab += 1;
160 	} else {
161 		/* different quadrant */
162 		q = &Quad[x][y];
163 	}
164 	if (q->qsystemname & Q_DISTRESSED) {
165 		/* distressed starsystem */
166 		e = &Event[q->qsystemname & Q_SYSTEM];
167 		printf("Distress call for %s invalidated\n",
168 			Systemname[e->systemname]);
169 		unschedule(e);
170 	}
171 	q->qsystemname = 0;
172 	q->stars -= 1;
173 }
174 
175 
176 /**
177  **	"kill" a distress call
178  **
179  ** x, y are quadrant coordinates
180  ** f is set if user is to be informed
181  **/
182 
183 void
184 killd(int x, int y, int f)
185 {
186 	struct event	*e;
187 	int		i;
188 	struct quad	*q;
189 
190 	q = &Quad[x][y];
191 	for (i = 0; i < MAXEVENTS; i++) {
192 		e = &Event[i];
193 		if (e->x != x || e->y != y)
194 			continue;
195 		switch (e->evcode) {
196 		  case E_KDESB:
197 			if (f) {
198 				printf("Distress call for starbase in "
199 				       "%d,%d nullified\n",
200 					x, y);
201 				unschedule(e);
202 			}
203 			break;
204 
205 		  case E_ENSLV:
206 		  case E_REPRO:
207 			if (f) {
208 				printf("Distress call for %s in quadrant "
209 				       "%d,%d nullified\n",
210 					Systemname[e->systemname], x, y);
211 				q->qsystemname = e->systemname;
212 				unschedule(e);
213 			} else {
214 				e->evcode |= E_GHOST;
215 			}
216 		}
217 	}
218 }
219