xref: /dragonfly/games/trek/kill.c (revision 6e285212)
1 /*
2  * Copyright (c) 1980, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)kill.c	8.1 (Berkeley) 5/31/93
34  * $FreeBSD: src/games/trek/kill.c,v 1.4 1999/11/30 03:49:49 billf Exp $
35  * $DragonFly: src/games/trek/kill.c,v 1.2 2003/06/17 04:25:25 dillon Exp $
36  */
37 
38 # include	"trek.h"
39 
40 /*
41 **  KILL KILL KILL !!!
42 **
43 **	This file handles the killing off of almost anything.
44 */
45 
46 /*
47 **  Handle a Klingon's death
48 **
49 **	The Klingon at the sector given by the parameters is killed
50 **	and removed from the Klingon list.  Notice that it is not
51 **	removed from the event list; this is done later, when the
52 **	the event is to be caught.  Also, the time left is recomputed,
53 **	and the game is won if that was the last klingon.
54 */
55 
56 killk(ix, iy)
57 int	ix, iy;
58 {
59 	int		i, j;
60 
61 	printf("   *** Klingon at %d,%d destroyed ***\n", ix, iy);
62 
63 	/* remove the scoundrel */
64 	Now.klings -= 1;
65 	Sect[ix][iy] = EMPTY;
66 	Quad[Ship.quadx][Ship.quady].klings -= 1;
67 	/* %%% IS THIS SAFE???? %%% */
68 	Quad[Ship.quadx][Ship.quady].scanned -= 100;
69 	Game.killk += 1;
70 
71 	/* find the Klingon in the Klingon list */
72 	for (i = 0; i < Etc.nkling; i++)
73 		if (ix == Etc.klingon[i].x && iy == Etc.klingon[i].y)
74 		{
75 			/* purge him from the list */
76 			Etc.nkling -= 1;
77 			for (; i < Etc.nkling; i++)
78 				bmove(&Etc.klingon[i+1], &Etc.klingon[i], sizeof Etc.klingon[i]);
79 			break;
80 		}
81 
82 	/* find out if that was the last one */
83 	if (Now.klings <= 0)
84 		win();
85 
86 	/* recompute time left */
87 	Now.time = Now.resource / Now.klings;
88 	return;
89 }
90 
91 
92 /*
93 **  handle a starbase's death
94 */
95 
96 killb(qx, qy)
97 int	qx, qy;
98 {
99 	struct quad	*q;
100 	struct xy	*b;
101 
102 	q = &Quad[qx][qy];
103 
104 	if (q->bases <= 0)
105 		return;
106 	if (!damaged(SSRADIO))
107 		/* then update starchart */
108 		if (q->scanned < 1000)
109 			q->scanned -= 10;
110 		else
111 			if (q->scanned > 1000)
112 				q->scanned = -1;
113 	q->bases = 0;
114 	Now.bases -= 1;
115 	for (b = Now.base; ; b++)
116 		if (qx == b->x && qy == b->y)
117 			break;
118 	bmove(&Now.base[Now.bases], b, sizeof *b);
119 	if (qx == Ship.quadx && qy == Ship.quady)
120 	{
121 		Sect[Etc.starbase.x][Etc.starbase.y] = EMPTY;
122 		if (Ship.cond == DOCKED)
123 			undock();
124 		printf("Starbase at %d,%d destroyed\n", Etc.starbase.x, Etc.starbase.y);
125 	}
126 	else
127 	{
128 		if (!damaged(SSRADIO))
129 		{
130 			printf("Uhura: Starfleet command reports that the starbase in\n");
131 			printf("   quadrant %d,%d has been destroyed\n", qx, qy);
132 		}
133 		else
134 			schedule(E_KATSB | E_GHOST, 1e50, qx, qy, 0);
135 	}
136 }
137 
138 
139 /**
140  **	kill an inhabited starsystem
141  **/
142 
143 kills(x, y, f)
144 int	x, y;	/* quad coords if f == 0, else sector coords */
145 int	f;	/* f != 0 -- this quad;  f < 0 -- Enterprise's fault */
146 {
147 	struct quad	*q;
148 	struct event	*e;
149 	char		*name;
150 	char			*systemname();
151 
152 	if (f)
153 	{
154 		/* current quadrant */
155 		q = &Quad[Ship.quadx][Ship.quady];
156 		Sect[x][y] = EMPTY;
157 		name = systemname(q);
158 		if (name == 0)
159 			return;
160 		printf("Inhabited starsystem %s at %d,%d destroyed\n",
161 			name, x, y);
162 		if (f < 0)
163 			Game.killinhab += 1;
164 	}
165 	else
166 	{
167 		/* different quadrant */
168 		q = &Quad[x][y];
169 	}
170 	if (q->qsystemname & Q_DISTRESSED)
171 	{
172 		/* distressed starsystem */
173 		e = &Event[q->qsystemname & Q_SYSTEM];
174 		printf("Distress call for %s invalidated\n",
175 			Systemname[e->systemname]);
176 		unschedule(e);
177 	}
178 	q->qsystemname = 0;
179 	q->stars -= 1;
180 }
181 
182 
183 /**
184  **	"kill" a distress call
185  **/
186 
187 killd(x, y, f)
188 int	x, y;		/* quadrant coordinates */
189 int	f;		/* set if user is to be informed */
190 {
191 	struct event	*e;
192 	int		i;
193 	struct quad	*q;
194 
195 	q = &Quad[x][y];
196 	for (i = 0; i < MAXEVENTS; i++)
197 	{
198 		e = &Event[i];
199 		if (e->x != x || e->y != y)
200 			continue;
201 		switch (e->evcode)
202 		{
203 		  case E_KDESB:
204 			if (f)
205 			{
206 				printf("Distress call for starbase in %d,%d nullified\n",
207 					x, y);
208 				unschedule(e);
209 			}
210 			break;
211 
212 		  case E_ENSLV:
213 		  case E_REPRO:
214 			if (f)
215 			{
216 				printf("Distress call for %s in quadrant %d,%d nullified\n",
217 					Systemname[e->systemname], x, y);
218 				q->qsystemname = e->systemname;
219 				unschedule(e);
220 			}
221 			else
222 			{
223 				e->evcode |= E_GHOST;
224 			}
225 		}
226 	}
227 }
228