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