games/sail/assorted.c

   1 /*      $NetBSD: assorted.c,v 1.16 2009/03/14 19:35:13 dholland Exp $   */
   2
   3 /*
   4  * Copyright (c) 1983, 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[] = "@(#)assorted.c  8.2 (Berkeley) 4/28/95";
  36 #else
  37 __RCSID("$NetBSD: assorted.c,v 1.16 2009/03/14 19:35:13 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <stdlib.h>
  42 #include <err.h>
  43 #include "extern.h"
  44
  45 static void strike(struct ship *, struct ship *);
  46
  47 void
  48 table(struct ship *from, struct ship *on,
  49       int rig, int shot, int hittable, int roll)
  50 {
  51         int hhits = 0, chits = 0, ghits = 0, rhits = 0;
  52         int Ghit = 0, Hhit = 0, Rhit = 0, Chit = 0;
  53         int guns, car, pc, hull;
  54         int crew[3];
  55         int n;
  56         int rigg[4];
  57         const char *message;
  58         const struct Tables *tp;
  59
  60         pc = on->file->pcrew;
  61         hull = on->specs->hull;
  62         crew[0] = on->specs->crew1;
  63         crew[1] = on->specs->crew2;
  64         crew[2] = on->specs->crew3;
  65         rigg[0] = on->specs->rig1;
  66         rigg[1] = on->specs->rig2;
  67         rigg[2] = on->specs->rig3;
  68         rigg[3] = on->specs->rig4;
  69         if (shot == L_GRAPE) {
  70                 Chit = chits = hittable;
  71         } else {
  72                 tp = &(rig ? RigTable : HullTable)[hittable][roll-1];
  73                 Chit = chits = tp->C;
  74                 Rhit = rhits = tp->R;
  75                 Hhit = hhits = tp->H;
  76                 Ghit = ghits = tp->G;
  77                 if (on->file->FS)
  78                         rhits *= 2;
  79                 if (shot == L_CHAIN) {
  80                         Ghit = ghits = 0;
  81                         Hhit = hhits = 0;
  82                 }
  83         }
  84         if (on->file->captured != 0) {
  85                 pc -= (chits + 1) / 2;
  86                 chits /= 2;
  87         }
  88         for (n = 0; n < 3; n++) {
  89                 if (chits > crew[n]) {
  90                         chits -= crew[n];
  91                         crew[n] = 0;
  92                 } else {
  93                         crew[n] -= chits;
  94                         chits = 0;
  95                 }
  96         }
  97         for (n = 0; n < 3; n++) {
  98                 if (rhits > rigg[n]) {
  99                         rhits -= rigg[n];
 100                         rigg[n] = 0;
 101                 } else {
 102                         rigg[n] -= rhits;
 103                         rhits = 0;
 104                 }
 105         }
 106         if (rigg[3] != -1 && rhits > rigg[3]) {
 107                 rhits -= rigg[3];
 108                 rigg[3] = 0;
 109         } else if (rigg[3] != -1) {
 110                 rigg[3] -= rhits;
 111         }
 112         if (rig && !rigg[2] && (!rigg[3] || rigg[3] == -1))
 113                 makemsg(on, "dismasted!");
 114         if (portside(from, on, 0)) {
 115                 guns = on->specs->gunR;
 116                 car = on->specs->carR;
 117         } else {
 118                 guns = on->specs->gunL;
 119                 car = on->specs->carL;
 120         }
 121         if (ghits > car) {
 122                 ghits -= car;
 123                 car = 0;
 124         } else {
 125                 car -= ghits;
 126                 ghits = 0;
 127         }
 128         if (ghits > guns) {
 129                 ghits -= guns;
 130                 guns = 0;
 131         } else {
 132                 guns -= ghits;
 133                 ghits = 0;
 134         }
 135         hull -= ghits;
 136         if (Ghit) {
 137                 if (portside(from, on, 0)) {
 138                         send_gunr(on, guns, car);
 139                 } else {
 140                         send_gunl(on, guns, car);
 141                 }
 142         }
 143         hull -= hhits;
 144         hull = hull < 0 ? 0 : hull;
 145         if (on->file->captured != 0 && Chit)
 146                 send_pcrew(on, pc);
 147         if (Hhit)
 148                 send_hull(on, hull);
 149         if (Chit)
 150                 send_crew(on, crew[0], crew[1], crew[2]);
 151         if (Rhit)
 152                 send_rigg(on, rigg[0], rigg[1], rigg[2], rigg[3]);
 153         switch (shot) {
 154         case L_ROUND:
 155                 message = "firing round shot on $$";
 156                 break;
 157         case L_GRAPE:
 158                 message = "firing grape shot on $$";
 159                 break;
 160         case L_CHAIN:
 161                 message = "firing chain shot on $$";
 162                 break;
 163         case L_DOUBLE:
 164                 message = "firing double shot on $$";
 165                 break;
 166         case L_EXPLODE:
 167                 message = "exploding shot on $$";
 168                 break;
 169         default:
 170                 errx(1, "Unknown shot type %d", shot);
 171
 172         }
 173         makesignal(from, message, on);
 174         if (roll == 6 && rig) {
 175                 switch(Rhit) {
 176                 case 0:
 177                         message = "fore topsail sheets parted";
 178                         break;
 179                 case 1:
 180                         message = "mizzen shrouds parted";
 181                         break;
 182                 case 2:
 183                         message = "main topsail yard shot away";
 184                         break;
 185                 case 4:
 186                         message = "fore topmast and foremast shrouds shot away";
 187                         break;
 188                 case 5:
 189                         message = "mizzen mast and yard shot through";
 190                         break;
 191                 case 6:
 192                         message = "foremast and spritsail yard shattered";
 193                         break;
 194                 case 7:
 195                         message = "main topmast and mizzen mast shattered";
 196                         break;
 197                 default:
 198                         errx(1, "Bad Rhit = %d", Rhit);
 199                 }
 200                 makemsg(on, message);
 201         } else if (roll == 6) {
 202                 switch (Hhit) {
 203                 case 0:
 204                         message = "anchor cables severed";
 205                         break;
 206                 case 1:
 207                         message = "two anchor stocks shot away";
 208                         break;
 209                 case 2:
 210                         message = "quarterdeck bulwarks damaged";
 211                         break;
 212                 case 3:
 213                         message = "three gun ports shot away";
 214                         break;
 215                 case 4:
 216                         message = "four guns dismounted";
 217                         break;
 218                 case 5:
 219                         message = "rudder cables shot through";
 220                         send_ta(on, 0);
 221                         break;
 222                 case 6:
 223                         message = "shot holes below the water line";
 224                         break;
 225                 default:
 226                         errx(1, "Bad Hhit = %d", Hhit);
 227                 }
 228                 makemsg(on, message);
 229         }
 230         /*
 231         if (Chit > 1 && on->file->readyL & R_INITIAL &&
 232             on->file->readyR & R_INITIAL) {
 233                 on->specs->qual--;
 234                 if (on->specs->qual <= 0) {
 235                         makemsg(on, "crew mutinying!");
 236                         on->specs->qual = 5;
 237                         Write(W_CAPTURED, on, on->file->index, 0, 0, 0);
 238                 } else {
 239                         makemsg(on, "crew demoralized");
 240                 }
 241                 Write(W_QUAL, on, on->specs->qual, 0, 0, 0);
 242         }
 243         */
 244         if (!hull)
 245                 strike(on, from);
 246 }
 247
 248 void
 249 Cleansnag(struct ship *from, struct ship *to, int all, int flag)
 250 {
 251         if (flag & 1) {
 252                 send_ungrap(from, to->file->index, all);
 253                 send_ungrap(to, from->file->index, all);
 254         }
 255         if (flag & 2) {
 256                 send_unfoul(from, to->file->index, all);
 257                 send_unfoul(to, from->file->index, all);
 258         }
 259         if (!snagged2(from, to)) {
 260                 if (!snagged(from)) {
 261                         unboard(from, from, 1);         /* defense */
 262                         unboard(from, from, 0);         /* defense */
 263                 } else
 264                         unboard(from, to, 0);           /* offense */
 265                 if (!snagged(to)) {
 266                         unboard(to, to, 1);             /* defense */
 267                         unboard(to, to, 0);             /* defense */
 268                 } else
 269                         unboard(to, from, 0);           /* offense */
 270         }
 271 }
 272
 273 static void
 274 strike(struct ship *ship, struct ship *from)
 275 {
 276         int points;
 277
 278         if (ship->file->struck)
 279                 return;
 280         send_struck(ship, 1);
 281         points = ship->specs->pts + from->file->points;
 282         send_points(from, points);
 283         unboard(ship, ship, 0);         /* all offense */
 284         unboard(ship, ship, 1);         /* all defense */
 285         switch (dieroll()) {
 286         case 3:
 287         case 4:         /* ship may sink */
 288                 send_sink(ship, 1);
 289                 break;
 290         case 5:
 291         case 6:         /* ship may explode */
 292                 send_explode(ship, 1);
 293                 break;
 294         }
 295         send_signal(ship, "striking her colours!");
 296 }