games/sail/assorted.c

   1 /*
   2  * Copyright (c) 1983, 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  * @(#)assorted.c       8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/sail/assorted.c,v 1.5 1999/11/30 03:49:31 billf Exp $
  35  * $DragonFly: src/games/sail/assorted.c,v 1.3 2006/09/03 17:33:13 pavalos Exp $
  36  */
  37
  38 #include "externs.h"
  39
  40 static void     strike(struct ship *, struct ship *);
  41
  42 void
  43 table(int rig, int shot, int hittable,
  44       struct ship *on, struct ship *from, int roll)
  45 {
  46         int hhits = 0, chits = 0, ghits = 0, rhits = 0;
  47         int Ghit = 0, Hhit = 0, Rhit = 0, Chit = 0;
  48         int guns, car, pc, hull;
  49         int crew[3];
  50         int n;
  51         int rigg[4];
  52         const char *message = NULL;
  53         struct Tables *tp;
  54
  55         pc = on->file->pcrew;
  56         hull = on->specs->hull;
  57         crew[0] = on->specs->crew1;
  58         crew[1] = on->specs->crew2;
  59         crew[2] = on->specs->crew3;
  60         rigg[0] = on->specs->rig1;
  61         rigg[1] = on->specs->rig2;
  62         rigg[2] = on->specs->rig3;
  63         rigg[3] = on->specs->rig4;
  64         if (shot == L_GRAPE)
  65                 Chit = chits = hittable;
  66         else {
  67                 tp = &(rig ? RigTable : HullTable)[hittable][roll-1];
  68                 Chit = chits = tp->C;
  69                 Rhit = rhits = tp->R;
  70                 Hhit = hhits = tp->H;
  71                 Ghit = ghits = tp->G;
  72                 if (on->file->FS)
  73                         rhits *= 2;
  74                 if (shot == L_CHAIN) {
  75                         Ghit = ghits = 0;
  76                         Hhit = hhits = 0;
  77                 }
  78         }
  79         if (on->file->captured != 0) {
  80                 pc -= (chits + 1) / 2;
  81                 chits /= 2;
  82         }
  83         for (n = 0; n < 3; n++)
  84                 if (chits > crew[n]) {
  85                         chits -= crew[n];
  86                         crew[n] = 0;
  87                 } else {
  88                         crew[n] -= chits;
  89                         chits = 0;
  90                 }
  91         for (n = 0; n < 3; n++)
  92                 if (rhits > rigg[n]){
  93                         rhits -= rigg[n];
  94                         rigg[n] = 0;
  95                 } else {
  96                         rigg[n] -= rhits;
  97                         rhits = 0;
  98                 }
  99         if (rigg[3] != -1 && rhits > rigg[3]) {
 100                 rhits -= rigg[3];
 101                 rigg[3] = 0;
 102         } else if (rigg[3] != -1) {
 103                 rigg[3] -= rhits;
 104         }
 105         if (rig && !rigg[2] && (!rigg[3] || rigg[3] == -1))
 106                 makesignal(on, "dismasted!", (struct ship *)0);
 107         if (portside(from, on, 0)) {
 108                 guns = on->specs->gunR;
 109                 car = on->specs->carR;
 110         } else {
 111                 guns = on->specs->gunL;
 112                 car = on->specs->carL;
 113         }
 114         if (ghits > car) {
 115                 ghits -= car;
 116                 car = 0;
 117         } else {
 118                 car -= ghits;
 119                 ghits = 0;
 120         }
 121         if (ghits > guns){
 122                 ghits -= guns;
 123                 guns = 0;
 124         } else {
 125                 guns -= ghits;
 126                 ghits = 0;
 127         }
 128         hull -= ghits;
 129         if (Ghit)
 130                 Write(portside(from, on, 0) ? W_GUNR : W_GUNL,
 131                         on, 0, guns, car, 0, 0);
 132         hull -= hhits;
 133         hull = hull < 0 ? 0 : hull;
 134         if (on->file->captured != 0 && Chit)
 135                 Write(W_PCREW, on, 0, pc, 0, 0, 0);
 136         if (Hhit)
 137                 Write(W_HULL, on, 0, hull, 0, 0, 0);
 138         if (Chit)
 139                 Write(W_CREW, on, 0, crew[0], crew[1], crew[2], 0);
 140         if (Rhit)
 141                 Write(W_RIGG, on, 0, rigg[0], rigg[1], rigg[2], rigg[3]);
 142         switch (shot) {
 143         case L_ROUND:
 144                 message = "firing round shot on %s (%c%c)";
 145                 break;
 146         case L_GRAPE:
 147                 message = "firing grape shot on %s (%c%c)";
 148                 break;
 149         case L_CHAIN:
 150                 message = "firing chain shot on %s (%c%c)";
 151                 break;
 152         case L_DOUBLE:
 153                 message = "firing double shot on %s (%c%c)";
 154                 break;
 155         case L_EXPLODE:
 156                 message = "exploding shot on %s (%c%c)";
 157         }
 158         makesignal(from, message, on);
 159         if (roll == 6 && rig) {
 160                 switch(Rhit) {
 161                 case 0:
 162                         message = "fore topsail sheets parted";
 163                         break;
 164                 case 1:
 165                         message = "mizzen shrouds parted";
 166                         break;
 167                 case 2:
 168                         message = "main topsail yard shot away";
 169                         break;
 170                 case 4:
 171                         message = "fore topmast and foremast shrouds shot away";
 172                         break;
 173                 case 5:
 174                         message = "mizzen mast and yard shot through";
 175                         break;
 176                 case 6:
 177                         message = "foremast and spritsail yard shattered";
 178                         break;
 179                 case 7:
 180                         message = "main topmast and mizzen mast shattered";
 181                         break;
 182                 }
 183                 makesignal(on, message, (struct ship *)0);
 184         } else if (roll == 6) {
 185                 switch (Hhit) {
 186                 case 0:
 187                         message = "anchor cables severed";
 188                         break;
 189                 case 1:
 190                         message = "two anchor stocks shot away";
 191                         break;
 192                 case 2:
 193                         message = "quarterdeck bulwarks damaged";
 194                         break;
 195                 case 3:
 196                         message = "three gun ports shot away";
 197                         break;
 198                 case 4:
 199                         message = "four guns dismounted";
 200                         break;
 201                 case 5:
 202                         message = "rudder cables shot through";
 203                         Write(W_TA, on, 0, 0, 0, 0, 0);
 204                         break;
 205                 case 6:
 206                         message = "shot holes below the water line";
 207                         break;
 208                 }
 209                 makesignal(on, message, (struct ship *)0);
 210         }
 211         if (!hull)
 212                 strike(on, from);
 213 }
 214
 215 void
 216 Cleansnag(struct ship *from, struct ship *to, char all, char flag)
 217 {
 218         if (flag & 1) {
 219                 Write(W_UNGRAP, from, 0, to->file->index, all, 0, 0);
 220                 Write(W_UNGRAP, to, 0, from->file->index, all, 0, 0);
 221         }
 222         if (flag & 2) {
 223                 Write(W_UNFOUL, from, 0, to->file->index, all, 0, 0);
 224                 Write(W_UNFOUL, to, 0, from->file->index, all, 0, 0);
 225         }
 226         if (!snagged2(from, to)) {
 227                 if (!snagged(from)) {
 228                         unboard(from, from, 1);         /* defense */
 229                         unboard(from, from, 0);         /* defense */
 230                 } else
 231                         unboard(from, to, 0);           /* offense */
 232                 if (!snagged(to)) {
 233                         unboard(to, to, 1);             /* defense */
 234                         unboard(to, to, 0);             /* defense */
 235                 } else
 236                         unboard(to, from, 0);           /* offense */
 237         }
 238 }
 239
 240 static void
 241 strike(struct ship *ship, struct ship *from)
 242 {
 243         int points;
 244
 245         if (ship->file->struck)
 246                 return;
 247         Write(W_STRUCK, ship, 0, 1, 0, 0, 0);
 248         points = ship->specs->pts + from->file->points;
 249         Write(W_POINTS, from, 0, points, 0, 0, 0);
 250         unboard(ship, ship, 0);         /* all offense */
 251         unboard(ship, ship, 1);         /* all defense */
 252         switch (die()) {
 253         case 3:
 254         case 4:         /* ship may sink */
 255                 Write(W_SINK, ship, 0, 1, 0, 0, 0);
 256                 break;
 257         case 5:
 258         case 6:         /* ship may explode */
 259                 Write(W_EXPLODE, ship, 0, 1, 0, 0, 0);
 260                 break;
 261         }
 262         Write(W_SIGNAL, ship, 1, (int) "striking her colours!", 0, 0, 0);
 263 }