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
  34 #ifndef lint
  35 #if 0
  36 static char sccsid[] = "@(#)dr_1.c      8.1 (Berkeley) 5/31/93";
  37 #endif
  38 static const char rcsid[] =
  39  "$FreeBSD: src/games/sail/dr_1.c,v 1.7 1999/11/30 03:49:32 billf Exp $";
  40 #endif /* not lint */
  41
  42 #include "driver.h"
  43
  44 unfoul()
  45 {
  46         struct ship *sp;
  47         struct ship *to;
  48         int nat;
  49         int i;
  50
  51         foreachship(sp) {
  52                 if (sp->file->captain[0])
  53                         continue;
  54                 nat = capship(sp)->nationality;
  55                 foreachship(to) {
  56                         if (nat != capship(to)->nationality &&
  57                             !toughmelee(sp, to, 0, 0))
  58                                 continue;
  59                         for (i = fouled2(sp, to); --i >= 0;)
  60                                 if (die() <= 2)
  61                                         cleanfoul(sp, to, 0);
  62                 }
  63         }
  64 }
  65
  66 boardcomp()
  67 {
  68         int crew[3];
  69         struct ship *sp, *sq;
  70
  71         foreachship(sp) {
  72                 if (*sp->file->captain)
  73                         continue;
  74                 if (sp->file->dir == 0)
  75                         continue;
  76                 if (sp->file->struck || sp->file->captured != 0)
  77                         continue;
  78                 if (!snagged(sp))
  79                         continue;
  80                 crew[0] = sp->specs->crew1 != 0;
  81                 crew[1] = sp->specs->crew2 != 0;
  82                 crew[2] = sp->specs->crew3 != 0;
  83                 foreachship(sq) {
  84                         if (!Xsnagged2(sp, sq))
  85                                 continue;
  86                         if (meleeing(sp, sq))
  87                                 continue;
  88                         if (!sq->file->dir
  89                                 || sp->nationality == capship(sq)->nationality)
  90                                 continue;
  91                         switch (sp->specs->class - sq->specs->class) {
  92                         case -3: case -4: case -5:
  93                                 if (crew[0]) {
  94                                         /* OBP */
  95                                         sendbp(sp, sq, crew[0]*100, 0);
  96                                         crew[0] = 0;
  97                                 } else if (crew[1]){
  98                                         /* OBP */
  99                                         sendbp(sp, sq, crew[1]*10, 0);
 100                                         crew[1] = 0;
 101                                 }
 102                                 break;
 103                         case -2:
 104                                 if (crew[0] || crew[1]) {
 105                                         /* OBP */
 106                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 107                                                 0);
 108                                         crew[0] = crew[1] = 0;
 109                                 }
 110                                 break;
 111                         case -1: case 0: case 1:
 112                                 if (crew[0]) {
 113                                         /* OBP */
 114                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 115                                                 0);
 116                                         crew[0] = crew[1] = 0;
 117                                 }
 118                                 break;
 119                         case 2: case 3: case 4: case 5:
 120                                 /* OBP */
 121                                 sendbp(sp, sq, crew[0]*100+crew[1]*10+crew[2],
 122                                         0);
 123                                 crew[0] = crew[1] = crew[2] = 0;
 124                                 break;
 125                         }
 126                 }
 127         }
 128 }
 129
 130 fightitout(from, to, key)
 131 struct ship *from, *to;
 132 int key;
 133 {
 134         struct ship *fromcap, *tocap;
 135         int crewfrom[3], crewto[3], menfrom, mento;
 136         int pcto, pcfrom, fromstrength, strengthto, frominjured, toinjured;
 137         int topoints;
 138         int index, totalfrom = 0, totalto = 0;
 139         int count;
 140         char message[60];
 141
 142         menfrom = mensent(from, to, crewfrom, &fromcap, &pcfrom, key);
 143         mento = mensent(to, from, crewto, &tocap, &pcto, 0);
 144         if (fromcap == 0)
 145                 fromcap = from;
 146         if (tocap == 0)
 147                 tocap = to;
 148         if (key) {
 149                 if (!menfrom) {          /* if crew surprised */
 150                         if (fromcap == from)
 151                                 menfrom = from->specs->crew1
 152                                         + from->specs->crew2
 153                                         + from->specs->crew3;
 154                         else
 155                                 menfrom = from->file->pcrew;
 156                 } else {
 157                         menfrom *= 2;   /* DBP's fight at an advantage */
 158                 }
 159         }
 160         fromstrength = menfrom * fromcap->specs->qual;
 161         strengthto = mento * tocap->specs->qual;
 162         for (count = 0;
 163              (fromstrength < strengthto * 3 && strengthto < fromstrength * 3
 164               || fromstrength == -1) && count < 4;
 165              count++) {
 166                 index = fromstrength/10;
 167                 if (index > 8)
 168                         index = 8;
 169                 toinjured = MT[index][2 - die() / 3];
 170                 totalto += toinjured;
 171                 index = strengthto/10;
 172                 if (index > 8)
 173                         index = 8;
 174                 frominjured = MT[index][2 - die() / 3];
 175                 totalfrom += frominjured;
 176                 menfrom -= frominjured;
 177                 mento -= toinjured;
 178                 fromstrength = menfrom * fromcap->specs->qual;
 179                 strengthto = mento * tocap->specs->qual;
 180         }
 181         if (fromstrength >= strengthto * 3 || count == 4) {
 182                 unboard(to, from, 0);
 183                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 184                 subtract(to, totalto, crewto, tocap, pcto);
 185                 makesignal(from, "boarders from %s repelled", to);
 186                 (void) sprintf(message, "killed in melee: %d.  %s: %d",
 187                         totalto, from->shipname, totalfrom);
 188                 Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 189                 if (key)
 190                         return 1;
 191         } else if (strengthto >= fromstrength * 3) {
 192                 unboard(from, to, 0);
 193                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 194                 subtract(to, totalto, crewto, tocap, pcto);
 195                 if (key) {
 196                         if (fromcap != from)
 197                                 Write(W_POINTS, fromcap, 0,
 198                                         fromcap->file->points -
 199                                                 from->file->struck
 200                                                 ? from->specs->pts
 201                                                 : 2 * from->specs->pts,
 202                                         0, 0, 0);
 203
 204 /* ptr1 points to the shipspec for the ship that was just unboarded.
 205    I guess that what is going on here is that the pointer is multiplied
 206    or something. */
 207
 208                         Write(W_CAPTURED, from, 0, to->file->index, 0, 0, 0);
 209                         topoints = 2 * from->specs->pts + to->file->points;
 210                         if (from->file->struck)
 211                                 topoints -= from->specs->pts;
 212                         Write(W_POINTS, to, 0, topoints, 0, 0, 0);
 213                         mento = crewto[0] ? crewto[0] : crewto[1];
 214                         if (mento) {
 215                                 subtract(to, mento, crewto, tocap, pcto);
 216                                 subtract(from, - mento, crewfrom, to, 0);
 217                         }
 218                         (void) sprintf(message, "captured by the %s!",
 219                                 to->shipname);
 220                         Write(W_SIGNAL, from, 1, (long) message, 0, 0, 0);
 221                         (void) sprintf(message, "killed in melee: %d.  %s: %d",
 222                                 totalto, from->shipname, totalfrom);
 223                         Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 224                         mento = 0;
 225                         return 0;
 226                 }
 227         }
 228         return 0;
 229 }
 230
 231 resolve()
 232 {
 233         int thwart;
 234         struct ship *sp, *sq;
 235
 236         foreachship(sp) {
 237                 if (sp->file->dir == 0)
 238                         continue;
 239                 for (sq = sp + 1; sq < ls; sq++)
 240                         if (sq->file->dir && meleeing(sp, sq) && meleeing(sq, sp))
 241                                 (void) fightitout(sp, sq, 0);
 242                 thwart = 2;
 243                 foreachship(sq) {
 244                         if (sq->file->dir && meleeing(sq, sp))
 245                                 thwart = fightitout(sp, sq, 1);
 246                         if (!thwart)
 247                                 break;
 248                 }
 249                 if (!thwart) {
 250                         foreachship(sq) {
 251                                 if (sq->file->dir && meleeing(sq, sp))
 252                                         unboard(sq, sp, 0);
 253                                 unboard(sp, sq, 0);
 254                         }
 255                         unboard(sp, sp, 1);
 256                 } else if (thwart == 2)
 257                         unboard(sp, sp, 1);
 258         }
 259 }
 260
 261 compcombat()
 262 {
 263         int n;
 264         struct ship *sp;
 265         struct ship *closest;
 266         int crew[3], men = 0, target, temp;
 267         int r, guns, ready, load, car;
 268         int index, rakehim, sternrake;
 269         int shootat, hit;
 270
 271         foreachship(sp) {
 272                 if (sp->file->captain[0] || sp->file->dir == 0)
 273                         continue;
 274                 crew[0] = sp->specs->crew1;
 275                 crew[1] = sp->specs->crew2;
 276                 crew[2] = sp->specs->crew3;
 277                 for (n = 0; n < 3; n++) {
 278                         if (sp->file->OBP[n].turnsent)
 279                                 men += sp->file->OBP[n].mensent;
 280                 }
 281                 for (n = 0; n < 3; n++) {
 282                         if (sp->file->DBP[n].turnsent)
 283                                 men += sp->file->DBP[n].mensent;
 284                 }
 285                 if (men){
 286                         crew[0] = men/100 ? 0 : crew[0] != 0;
 287                         crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
 288                         crew[2] = men%10 ? 0 : crew[2] != 0;
 289                 }
 290                 for (r = 0; r < 2; r++) {
 291                         if (!crew[2])
 292                                 continue;
 293                         if (sp->file->struck)
 294                                 continue;
 295                         if (r) {
 296                                 ready = sp->file->readyR;
 297                                 guns = sp->specs->gunR;
 298                                 car = sp->specs->carR;
 299                         } else {
 300                                 ready = sp->file->readyL;
 301                                 guns = sp->specs->gunL;
 302                                 car = sp->specs->carL;
 303                         }
 304                         if (!guns && !car)
 305                                 continue;
 306                         if ((ready & R_LOADED) == 0)
 307                                 continue;
 308                         closest = closestenemy(sp, r ? 'r' : 'l', 0);
 309                         if (closest == 0)
 310                                 continue;
 311                         if (range(closest, sp) > range(sp, closestenemy(sp, r ? 'r' : 'l', 1)))
 312                                 continue;
 313                         if (closest->file->struck)
 314                                 continue;
 315                         target = range(sp, closest);
 316                         if (target > 10)
 317                                 continue;
 318                         if (!guns && target >= 3)
 319                                 continue;
 320                         load = L_ROUND;
 321                         if (target == 1 && sp->file->loadwith == L_GRAPE)
 322                                 load = L_GRAPE;
 323                         if (target <= 3 && closest->file->FS)
 324                                 load = L_CHAIN;
 325                         if (target == 1 && load != L_GRAPE)
 326                                 load = L_DOUBLE;
 327                         if (load > L_CHAIN && target < 6)
 328                                 shootat = HULL;
 329                         else
 330                                 shootat = RIGGING;
 331                         rakehim = gunsbear(sp, closest)
 332                                 && !gunsbear(closest, sp);
 333                         temp = portside(closest, sp, 1)
 334                                 - closest->file->dir + 1;
 335                         if (temp < 1)
 336                                 temp += 8;
 337                         if (temp > 8)
 338                                 temp -= 8;
 339                         sternrake = temp > 4 && temp < 6;
 340                         index = guns;
 341                         if (target < 3)
 342                                 index += car;
 343                         index = (index - 1) / 3;
 344                         index = index > 8 ? 8 : index;
 345                         if (!rakehim)
 346                                 hit = HDT[index][target-1];
 347                         else
 348                                 hit = HDTrake[index][target-1];
 349                         if (rakehim && sternrake)
 350                                 hit++;
 351                         hit += QUAL[index][capship(sp)->specs->qual - 1];
 352                         for (n = 0; n < 3 && sp->file->captured == 0; n++)
 353                                 if (!crew[n]) {
 354                                         if (index <= 5)
 355                                                 hit--;
 356                                         else
 357                                                 hit -= 2;
 358                                 }
 359                         if (ready & R_INITIAL) {
 360                                 if (!r)
 361                                         sp->file->readyL &= ~R_INITIAL;
 362                                 else
 363                                         sp->file->readyR &= ~R_INITIAL;
 364                                 if (index <= 3)
 365                                         hit++;
 366                                 else
 367                                         hit += 2;
 368                         }
 369                         if (sp->file->captured != 0) {
 370                                 if (index <= 1)
 371                                         hit--;
 372                                 else
 373                                         hit -= 2;
 374                         }
 375                         hit += AMMO[index][load - 1];
 376                         temp = sp->specs->class;
 377                         if ((temp >= 5 || temp == 1) && windspeed == 5)
 378                                 hit--;
 379                         if (windspeed == 6 && temp == 4)
 380                                 hit -= 2;
 381                         if (windspeed == 6 && temp <= 3)
 382                                 hit--;
 383                         if (hit >= 0) {
 384                                 if (load != L_GRAPE)
 385                                         hit = hit > 10 ? 10 : hit;
 386                                 table(shootat, load, hit, closest, sp, die());
 387                         }
 388                 }
 389         }
 390 }
 391
 392 next()
 393 {
 394         if (++turn % 55 == 0) {
 395                 if (alive)
 396                         alive = 0;
 397                 else
 398                         people = 0;
 399         }
 400         if (people <= 0 || windspeed == 7) {
 401                 struct ship *s;
 402                 struct ship *bestship;
 403                 float net, best = 0.0;
 404                 foreachship(s) {
 405                         if (*s->file->captain)
 406                                 continue;
 407                         net = (float)s->file->points / s->specs->pts;
 408                         if (net > best) {
 409                                 best = net;
 410                                 bestship = s;
 411                         }
 412                 }
 413                 if (best > 0.0) {
 414                         char *p = getenv("WOTD");
 415                         if (p == 0)
 416                                 p = "Driver";
 417                         if (islower(*p))
 418                                 *p = toupper(*p);
 419                         (void) strncpy(bestship->file->captain, p,
 420                                 sizeof bestship->file->captain);
 421                         bestship->file->captain
 422                                 [sizeof bestship->file->captain - 1] = 0;
 423                         log(bestship);
 424                 }
 425                 return -1;
 426         }
 427         Write(W_TURN, SHIP(0), 0, turn, 0, 0, 0);
 428         if (turn % 7 == 0 && (die() >= cc->windchange || !windspeed)) {
 429                 switch (die()) {
 430                 case 1:
 431                         winddir = 1;
 432                         break;
 433                 case 2:
 434                         break;
 435                 case 3:
 436                         winddir++;
 437                         break;
 438                 case 4:
 439                         winddir--;
 440                         break;
 441                 case 5:
 442                         winddir += 2;
 443                         break;
 444                 case 6:
 445                         winddir -= 2;
 446                         break;
 447                 }
 448                 if (winddir > 8)
 449                         winddir -= 8;
 450                 if (winddir < 1)
 451                         winddir += 8;
 452                 if (windspeed)
 453                         switch (die()) {
 454                         case 1:
 455                         case 2:
 456                                 windspeed--;
 457                                 break;
 458                         case 5:
 459                         case 6:
 460                                 windspeed++;
 461                                 break;
 462                         }
 463                 else
 464                         windspeed++;
 465                 Write(W_WIND, SHIP(0), 0, winddir, windspeed, 0, 0);
 466         }
 467         return 0;
 468 }