games/trek/kill.c

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