games/sail/dr_1.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  * @(#)dr_1.c   8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/sail/dr_1.c,v 1.7 1999/11/30 03:49:32 billf Exp $
  35  * $DragonFly: src/games/sail/dr_1.c,v 1.3 2006/03/12 14:06:39 swildner Exp $
  36  */
  37
  38 #include "driver.h"
  39
  40 unfoul()
  41 {
  42         struct ship *sp;
  43         struct ship *to;
  44         int nat;
  45         int i;
  46
  47         foreachship(sp) {
  48                 if (sp->file->captain[0])
  49                         continue;
  50                 nat = capship(sp)->nationality;
  51                 foreachship(to) {
  52                         if (nat != capship(to)->nationality &&
  53                             !toughmelee(sp, to, 0, 0))
  54                                 continue;
  55                         for (i = fouled2(sp, to); --i >= 0;)
  56                                 if (die() <= 2)
  57                                         cleanfoul(sp, to, 0);
  58                 }
  59         }
  60 }
  61
  62 boardcomp()
  63 {
  64         int crew[3];
  65         struct ship *sp, *sq;
  66
  67         foreachship(sp) {
  68                 if (*sp->file->captain)
  69                         continue;
  70                 if (sp->file->dir == 0)
  71                         continue;
  72                 if (sp->file->struck || sp->file->captured != 0)
  73                         continue;
  74                 if (!snagged(sp))
  75                         continue;
  76                 crew[0] = sp->specs->crew1 != 0;
  77                 crew[1] = sp->specs->crew2 != 0;
  78                 crew[2] = sp->specs->crew3 != 0;
  79                 foreachship(sq) {
  80                         if (!Xsnagged2(sp, sq))
  81                                 continue;
  82                         if (meleeing(sp, sq))
  83                                 continue;
  84                         if (!sq->file->dir
  85                                 || sp->nationality == capship(sq)->nationality)
  86                                 continue;
  87                         switch (sp->specs->class - sq->specs->class) {
  88                         case -3: case -4: case -5:
  89                                 if (crew[0]) {
  90                                         /* OBP */
  91                                         sendbp(sp, sq, crew[0]*100, 0);
  92                                         crew[0] = 0;
  93                                 } else if (crew[1]){
  94                                         /* OBP */
  95                                         sendbp(sp, sq, crew[1]*10, 0);
  96                                         crew[1] = 0;
  97                                 }
  98                                 break;
  99                         case -2:
 100                                 if (crew[0] || crew[1]) {
 101                                         /* OBP */
 102                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 103                                                 0);
 104                                         crew[0] = crew[1] = 0;
 105                                 }
 106                                 break;
 107                         case -1: case 0: case 1:
 108                                 if (crew[0]) {
 109                                         /* OBP */
 110                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 111                                                 0);
 112                                         crew[0] = crew[1] = 0;
 113                                 }
 114                                 break;
 115                         case 2: case 3: case 4: case 5:
 116                                 /* OBP */
 117                                 sendbp(sp, sq, crew[0]*100+crew[1]*10+crew[2],
 118                                         0);
 119                                 crew[0] = crew[1] = crew[2] = 0;
 120                                 break;
 121                         }
 122                 }
 123         }
 124 }
 125
 126 fightitout(from, to, key)
 127 struct ship *from, *to;
 128 int key;
 129 {
 130         struct ship *fromcap, *tocap;
 131         int crewfrom[3], crewto[3], menfrom, mento;
 132         int pcto, pcfrom, fromstrength, strengthto, frominjured, toinjured;
 133         int topoints;
 134         int index, totalfrom = 0, totalto = 0;
 135         int count;
 136         char message[60];
 137
 138         menfrom = mensent(from, to, crewfrom, &fromcap, &pcfrom, key);
 139         mento = mensent(to, from, crewto, &tocap, &pcto, 0);
 140         if (fromcap == 0)
 141                 fromcap = from;
 142         if (tocap == 0)
 143                 tocap = to;
 144         if (key) {
 145                 if (!menfrom) {          /* if crew surprised */
 146                         if (fromcap == from)
 147                                 menfrom = from->specs->crew1
 148                                         + from->specs->crew2
 149                                         + from->specs->crew3;
 150                         else
 151                                 menfrom = from->file->pcrew;
 152                 } else {
 153                         menfrom *= 2;   /* DBP's fight at an advantage */
 154                 }
 155         }
 156         fromstrength = menfrom * fromcap->specs->qual;
 157         strengthto = mento * tocap->specs->qual;
 158         for (count = 0;
 159              (fromstrength < strengthto * 3 && strengthto < fromstrength * 3
 160               || fromstrength == -1) && count < 4;
 161              count++) {
 162                 index = fromstrength/10;
 163                 if (index > 8)
 164                         index = 8;
 165                 toinjured = MT[index][2 - die() / 3];
 166                 totalto += toinjured;
 167                 index = strengthto/10;
 168                 if (index > 8)
 169                         index = 8;
 170                 frominjured = MT[index][2 - die() / 3];
 171                 totalfrom += frominjured;
 172                 menfrom -= frominjured;
 173                 mento -= toinjured;
 174                 fromstrength = menfrom * fromcap->specs->qual;
 175                 strengthto = mento * tocap->specs->qual;
 176         }
 177         if (fromstrength >= strengthto * 3 || count == 4) {
 178                 unboard(to, from, 0);
 179                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 180                 subtract(to, totalto, crewto, tocap, pcto);
 181                 makesignal(from, "boarders from %s repelled", to);
 182                 (void) sprintf(message, "killed in melee: %d.  %s: %d",
 183                         totalto, from->shipname, totalfrom);
 184                 Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 185                 if (key)
 186                         return 1;
 187         } else if (strengthto >= fromstrength * 3) {
 188                 unboard(from, to, 0);
 189                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 190                 subtract(to, totalto, crewto, tocap, pcto);
 191                 if (key) {
 192                         if (fromcap != from)
 193                                 Write(W_POINTS, fromcap, 0,
 194                                         fromcap->file->points -
 195                                                 from->file->struck
 196                                                 ? from->specs->pts
 197                                                 : 2 * from->specs->pts,
 198                                         0, 0, 0);
 199
 200 /* ptr1 points to the shipspec for the ship that was just unboarded.
 201    I guess that what is going on here is that the pointer is multiplied
 202    or something. */
 203
 204                         Write(W_CAPTURED, from, 0, to->file->index, 0, 0, 0);
 205                         topoints = 2 * from->specs->pts + to->file->points;
 206                         if (from->file->struck)
 207                                 topoints -= from->specs->pts;
 208                         Write(W_POINTS, to, 0, topoints, 0, 0, 0);
 209                         mento = crewto[0] ? crewto[0] : crewto[1];
 210                         if (mento) {
 211                                 subtract(to, mento, crewto, tocap, pcto);
 212                                 subtract(from, - mento, crewfrom, to, 0);
 213                         }
 214                         (void) sprintf(message, "captured by the %s!",
 215                                 to->shipname);
 216                         Write(W_SIGNAL, from, 1, (long) message, 0, 0, 0);
 217                         (void) sprintf(message, "killed in melee: %d.  %s: %d",
 218                                 totalto, from->shipname, totalfrom);
 219                         Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 220                         mento = 0;
 221                         return 0;
 222                 }
 223         }
 224         return 0;
 225 }
 226
 227 resolve()
 228 {
 229         int thwart;
 230         struct ship *sp, *sq;
 231
 232         foreachship(sp) {
 233                 if (sp->file->dir == 0)
 234                         continue;
 235                 for (sq = sp + 1; sq < ls; sq++)
 236                         if (sq->file->dir && meleeing(sp, sq) && meleeing(sq, sp))
 237                                 (void) fightitout(sp, sq, 0);
 238                 thwart = 2;
 239                 foreachship(sq) {
 240                         if (sq->file->dir && meleeing(sq, sp))
 241                                 thwart = fightitout(sp, sq, 1);
 242                         if (!thwart)
 243                                 break;
 244                 }
 245                 if (!thwart) {
 246                         foreachship(sq) {
 247                                 if (sq->file->dir && meleeing(sq, sp))
 248                                         unboard(sq, sp, 0);
 249                                 unboard(sp, sq, 0);
 250                         }
 251                         unboard(sp, sp, 1);
 252                 } else if (thwart == 2)
 253                         unboard(sp, sp, 1);
 254         }
 255 }
 256
 257 compcombat()
 258 {
 259         int n;
 260         struct ship *sp;
 261         struct ship *closest;
 262         int crew[3], men = 0, target, temp;
 263         int r, guns, ready, load, car;
 264         int index, rakehim, sternrake;
 265         int shootat, hit;
 266
 267         foreachship(sp) {
 268                 if (sp->file->captain[0] || sp->file->dir == 0)
 269                         continue;
 270                 crew[0] = sp->specs->crew1;
 271                 crew[1] = sp->specs->crew2;
 272                 crew[2] = sp->specs->crew3;
 273                 for (n = 0; n < 3; n++) {
 274                         if (sp->file->OBP[n].turnsent)
 275                                 men += sp->file->OBP[n].mensent;
 276                 }
 277                 for (n = 0; n < 3; n++) {
 278                         if (sp->file->DBP[n].turnsent)
 279                                 men += sp->file->DBP[n].mensent;
 280                 }
 281                 if (men){
 282                         crew[0] = men/100 ? 0 : crew[0] != 0;
 283                         crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
 284                         crew[2] = men%10 ? 0 : crew[2] != 0;
 285                 }
 286                 for (r = 0; r < 2; r++) {
 287                         if (!crew[2])
 288                                 continue;
 289                         if (sp->file->struck)
 290                                 continue;
 291                         if (r) {
 292                                 ready = sp->file->readyR;
 293                                 guns = sp->specs->gunR;
 294                                 car = sp->specs->carR;
 295                         } else {
 296                                 ready = sp->file->readyL;
 297                                 guns = sp->specs->gunL;
 298                                 car = sp->specs->carL;
 299                         }
 300                         if (!guns && !car)
 301                                 continue;
 302                         if ((ready & R_LOADED) == 0)
 303                                 continue;
 304                         closest = closestenemy(sp, r ? 'r' : 'l', 0);
 305                         if (closest == 0)
 306                                 continue;
 307                         if (range(closest, sp) > range(sp, closestenemy(sp, r ? 'r' : 'l', 1)))
 308                                 continue;
 309                         if (closest->file->struck)
 310                                 continue;
 311                         target = range(sp, closest);
 312                         if (target > 10)
 313                                 continue;
 314                         if (!guns && target >= 3)
 315                                 continue;
 316                         load = L_ROUND;
 317                         if (target == 1 && sp->file->loadwith == L_GRAPE)
 318                                 load = L_GRAPE;
 319                         if (target <= 3 && closest->file->FS)
 320                                 load = L_CHAIN;
 321                         if (target == 1 && load != L_GRAPE)
 322                                 load = L_DOUBLE;
 323                         if (load > L_CHAIN && target < 6)
 324                                 shootat = HULL;
 325                         else
 326                                 shootat = RIGGING;
 327                         rakehim = gunsbear(sp, closest)
 328                                 && !gunsbear(closest, sp);
 329                         temp = portside(closest, sp, 1)
 330                                 - closest->file->dir + 1;
 331                         if (temp < 1)
 332                                 temp += 8;
 333                         if (temp > 8)
 334                                 temp -= 8;
 335                         sternrake = temp > 4 && temp < 6;
 336                         index = guns;
 337                         if (target < 3)
 338                                 index += car;
 339                         index = (index - 1) / 3;
 340                         index = index > 8 ? 8 : index;
 341                         if (!rakehim)
 342                                 hit = HDT[index][target-1];
 343                         else
 344                                 hit = HDTrake[index][target-1];
 345                         if (rakehim && sternrake)
 346                                 hit++;
 347                         hit += QUAL[index][capship(sp)->specs->qual - 1];
 348                         for (n = 0; n < 3 && sp->file->captured == 0; n++)
 349                                 if (!crew[n]) {
 350                                         if (index <= 5)
 351                                                 hit--;
 352                                         else
 353                                                 hit -= 2;
 354                                 }
 355                         if (ready & R_INITIAL) {
 356                                 if (!r)
 357                                         sp->file->readyL &= ~R_INITIAL;
 358                                 else
 359                                         sp->file->readyR &= ~R_INITIAL;
 360                                 if (index <= 3)
 361                                         hit++;
 362                                 else
 363                                         hit += 2;
 364                         }
 365                         if (sp->file->captured != 0) {
 366                                 if (index <= 1)
 367                                         hit--;
 368                                 else
 369                                         hit -= 2;
 370                         }
 371                         hit += AMMO[index][load - 1];
 372                         temp = sp->specs->class;
 373                         if ((temp >= 5 || temp == 1) && windspeed == 5)
 374                                 hit--;
 375                         if (windspeed == 6 && temp == 4)
 376                                 hit -= 2;
 377                         if (windspeed == 6 && temp <= 3)
 378                                 hit--;
 379                         if (hit >= 0) {
 380                                 if (load != L_GRAPE)
 381                                         hit = hit > 10 ? 10 : hit;
 382                                 table(shootat, load, hit, closest, sp, die());
 383                         }
 384                 }
 385         }
 386 }
 387
 388 next()
 389 {
 390         if (++turn % 55 == 0) {
 391                 if (alive)
 392                         alive = 0;
 393                 else
 394                         people = 0;
 395         }
 396         if (people <= 0 || windspeed == 7) {
 397                 struct ship *s;
 398                 struct ship *bestship;
 399                 float net, best = 0.0;
 400                 foreachship(s) {
 401                         if (*s->file->captain)
 402                                 continue;
 403                         net = (float)s->file->points / s->specs->pts;
 404                         if (net > best) {
 405                                 best = net;
 406                                 bestship = s;
 407                         }
 408                 }
 409                 if (best > 0.0) {
 410                         char *p = getenv("WOTD");
 411                         if (p == 0)
 412                                 p = "Driver";
 413                         if (islower(*p))
 414                                 *p = toupper(*p);
 415                         (void) strncpy(bestship->file->captain, p,
 416                                 sizeof bestship->file->captain);
 417                         bestship->file->captain
 418                                 [sizeof bestship->file->captain - 1] = 0;
 419                         write_log(bestship);
 420                 }
 421                 return -1;
 422         }
 423         Write(W_TURN, SHIP(0), 0, turn, 0, 0, 0);
 424         if (turn % 7 == 0 && (die() >= cc->windchange || !windspeed)) {
 425                 switch (die()) {
 426                 case 1:
 427                         winddir = 1;
 428                         break;
 429                 case 2:
 430                         break;
 431                 case 3:
 432                         winddir++;
 433                         break;
 434                 case 4:
 435                         winddir--;
 436                         break;
 437                 case 5:
 438                         winddir += 2;
 439                         break;
 440                 case 6:
 441                         winddir -= 2;
 442                         break;
 443                 }
 444                 if (winddir > 8)
 445                         winddir -= 8;
 446                 if (winddir < 1)
 447                         winddir += 8;
 448                 if (windspeed)
 449                         switch (die()) {
 450                         case 1:
 451                         case 2:
 452                                 windspeed--;
 453                                 break;
 454                         case 5:
 455                         case 6:
 456                                 windspeed++;
 457                                 break;
 458                         }
 459                 else
 460                         windspeed++;
 461                 Write(W_WIND, SHIP(0), 0, winddir, windspeed, 0, 0);
 462         }
 463         return 0;
 464 }