sail/dr_1.c

   1 /*      $NetBSD: dr_1.c,v 1.5 1997/10/13 19:43:14 christos 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 #if 0
  39 static char sccsid[] = "@(#)dr_1.c      8.1 (Berkeley) 5/31/93";
  40 #else
  41 __RCSID("$NetBSD: dr_1.c,v 1.5 1997/10/13 19:43:14 christos Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include "driver.h"
  46 #include <stdlib.h>
  47
  48 void
  49 unfoul()
  50 {
  51         struct ship *sp;
  52         struct ship *to;
  53         int nat;
  54         int i;
  55
  56         foreachship(sp) {
  57                 if (sp->file->captain[0])
  58                         continue;
  59                 nat = capship(sp)->nationality;
  60                 foreachship(to) {
  61                         if (nat != capship(to)->nationality &&
  62                             !toughmelee(sp, to, 0, 0))
  63                                 continue;
  64                         for (i = fouled2(sp, to); --i >= 0;)
  65                                 if (die() <= 2)
  66                                         cleanfoul(sp, to, 0);
  67                 }
  68         }
  69 }
  70
  71 void
  72 boardcomp()
  73 {
  74         int crew[3];
  75         struct ship *sp, *sq;
  76
  77         foreachship(sp) {
  78                 if (*sp->file->captain)
  79                         continue;
  80                 if (sp->file->dir == 0)
  81                         continue;
  82                 if (sp->file->struck || sp->file->captured != 0)
  83                         continue;
  84                 if (!snagged(sp))
  85                         continue;
  86                 crew[0] = sp->specs->crew1 != 0;
  87                 crew[1] = sp->specs->crew2 != 0;
  88                 crew[2] = sp->specs->crew3 != 0;
  89                 foreachship(sq) {
  90                         if (!Xsnagged2(sp, sq))
  91                                 continue;
  92                         if (meleeing(sp, sq))
  93                                 continue;
  94                         if (!sq->file->dir
  95                                 || sp->nationality == capship(sq)->nationality)
  96                                 continue;
  97                         switch (sp->specs->class - sq->specs->class) {
  98                         case -3: case -4: case -5:
  99                                 if (crew[0]) {
 100                                         /* OBP */
 101                                         sendbp(sp, sq, crew[0]*100, 0);
 102                                         crew[0] = 0;
 103                                 } else if (crew[1]){
 104                                         /* OBP */
 105                                         sendbp(sp, sq, crew[1]*10, 0);
 106                                         crew[1] = 0;
 107                                 }
 108                                 break;
 109                         case -2:
 110                                 if (crew[0] || crew[1]) {
 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 -1: case 0: case 1:
 118                                 if (crew[0]) {
 119                                         /* OBP */
 120                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 121                                                 0);
 122                                         crew[0] = crew[1] = 0;
 123                                 }
 124                                 break;
 125                         case 2: case 3: case 4: case 5:
 126                                 /* OBP */
 127                                 sendbp(sp, sq, crew[0]*100+crew[1]*10+crew[2],
 128                                         0);
 129                                 crew[0] = crew[1] = crew[2] = 0;
 130                                 break;
 131                         }
 132                 }
 133         }
 134 }
 135
 136 int
 137 fightitout(from, to, key)
 138 struct ship *from, *to;
 139 int key;
 140 {
 141         struct ship *fromcap, *tocap;
 142         int crewfrom[3], crewto[3], menfrom, mento;
 143         int pcto, pcfrom, fromstrength, strengthto, frominjured, toinjured;
 144         int topoints;
 145         int index, totalfrom = 0, totalto = 0;
 146         int count;
 147         char message[60];
 148
 149         menfrom = mensent(from, to, crewfrom, &fromcap, &pcfrom, key);
 150         mento = mensent(to, from, crewto, &tocap, &pcto, 0);
 151         if (fromcap == 0)
 152                 fromcap = from;
 153         if (tocap == 0)
 154                 tocap = to;
 155         if (key) {
 156                 if (!menfrom) {          /* if crew surprised */
 157                         if (fromcap == from)
 158                                 menfrom = from->specs->crew1
 159                                         + from->specs->crew2
 160                                         + from->specs->crew3;
 161                         else
 162                                 menfrom = from->file->pcrew;
 163                 } else {
 164                         menfrom *= 2;   /* DBP's fight at an advantage */
 165                 }
 166         }
 167         fromstrength = menfrom * fromcap->specs->qual;
 168         strengthto = mento * tocap->specs->qual;
 169         for (count = 0;
 170              ((fromstrength < strengthto * 3 && strengthto < fromstrength * 3)
 171               || fromstrength == -1) && count < 4;
 172              count++) {
 173                 index = fromstrength/10;
 174                 if (index > 8)
 175                         index = 8;
 176                 toinjured = MT[index][2 - die() / 3];
 177                 totalto += toinjured;
 178                 index = strengthto/10;
 179                 if (index > 8)
 180                         index = 8;
 181                 frominjured = MT[index][2 - die() / 3];
 182                 totalfrom += frominjured;
 183                 menfrom -= frominjured;
 184                 mento -= toinjured;
 185                 fromstrength = menfrom * fromcap->specs->qual;
 186                 strengthto = mento * tocap->specs->qual;
 187         }
 188         if (fromstrength >= strengthto * 3 || count == 4) {
 189                 unboard(to, from, 0);
 190                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 191                 subtract(to, totalto, crewto, tocap, pcto);
 192                 makesignal(from, "boarders from %s repelled", to);
 193                 (void) sprintf(message, "killed in melee: %d.  %s: %d",
 194                         totalto, from->shipname, totalfrom);
 195                 Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 196                 if (key)
 197                         return 1;
 198         } else if (strengthto >= fromstrength * 3) {
 199                 unboard(from, to, 0);
 200                 subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
 201                 subtract(to, totalto, crewto, tocap, pcto);
 202                 if (key) {
 203                         if (fromcap != from)
 204                                 Write(W_POINTS, fromcap, 0,
 205                                         fromcap->file->points -
 206                                                 from->file->struck
 207                                                 ? from->specs->pts
 208                                                 : 2 * from->specs->pts,
 209                                         0, 0, 0);
 210
 211 /* ptr1 points to the shipspec for the ship that was just unboarded.
 212    I guess that what is going on here is that the pointer is multiplied
 213    or something. */
 214
 215                         Write(W_CAPTURED, from, 0, to->file->index, 0, 0, 0);
 216                         topoints = 2 * from->specs->pts + to->file->points;
 217                         if (from->file->struck)
 218                                 topoints -= from->specs->pts;
 219                         Write(W_POINTS, to, 0, topoints, 0, 0, 0);
 220                         mento = crewto[0] ? crewto[0] : crewto[1];
 221                         if (mento) {
 222                                 subtract(to, mento, crewto, tocap, pcto);
 223                                 subtract(from, - mento, crewfrom, to, 0);
 224                         }
 225                         (void) sprintf(message, "captured by the %s!",
 226                                 to->shipname);
 227                         Write(W_SIGNAL, from, 1, (long) message, 0, 0, 0);
 228                         (void) sprintf(message, "killed in melee: %d.  %s: %d",
 229                                 totalto, from->shipname, totalfrom);
 230                         Write(W_SIGNAL, to, 1, (long) message, 0, 0, 0);
 231                         mento = 0;
 232                         return 0;
 233                 }
 234         }
 235         return 0;
 236 }
 237
 238 void
 239 resolve()
 240 {
 241         int thwart;
 242         struct ship *sp, *sq;
 243
 244         foreachship(sp) {
 245                 if (sp->file->dir == 0)
 246                         continue;
 247                 for (sq = sp + 1; sq < ls; sq++)
 248                         if (sq->file->dir && meleeing(sp, sq) && meleeing(sq, sp))
 249                                 (void) fightitout(sp, sq, 0);
 250                 thwart = 2;
 251                 foreachship(sq) {
 252                         if (sq->file->dir && meleeing(sq, sp))
 253                                 thwart = fightitout(sp, sq, 1);
 254                         if (!thwart)
 255                                 break;
 256                 }
 257                 if (!thwart) {
 258                         foreachship(sq) {
 259                                 if (sq->file->dir && meleeing(sq, sp))
 260                                         unboard(sq, sp, 0);
 261                                 unboard(sp, sq, 0);
 262                         }
 263                         unboard(sp, sp, 1);
 264                 } else if (thwart == 2)
 265                         unboard(sp, sp, 1);
 266         }
 267 }
 268
 269 void
 270 compcombat()
 271 {
 272         int n;
 273         struct ship *sp;
 274         struct ship *closest;
 275         int crew[3], men = 0, target, temp;
 276         int r, guns, ready, load, car;
 277         int index, rakehim, sternrake;
 278         int shootat, hit;
 279
 280         foreachship(sp) {
 281                 if (sp->file->captain[0] || sp->file->dir == 0)
 282                         continue;
 283                 crew[0] = sp->specs->crew1;
 284                 crew[1] = sp->specs->crew2;
 285                 crew[2] = sp->specs->crew3;
 286                 for (n = 0; n < 3; n++) {
 287                         if (sp->file->OBP[n].turnsent)
 288                                 men += sp->file->OBP[n].mensent;
 289                 }
 290                 for (n = 0; n < 3; n++) {
 291                         if (sp->file->DBP[n].turnsent)
 292                                 men += sp->file->DBP[n].mensent;
 293                 }
 294                 if (men){
 295                         crew[0] = men/100 ? 0 : crew[0] != 0;
 296                         crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
 297                         crew[2] = men%10 ? 0 : crew[2] != 0;
 298                 }
 299                 for (r = 0; r < 2; r++) {
 300                         if (!crew[2])
 301                                 continue;
 302                         if (sp->file->struck)
 303                                 continue;
 304                         if (r) {
 305                                 ready = sp->file->readyR;
 306                                 guns = sp->specs->gunR;
 307                                 car = sp->specs->carR;
 308                         } else {
 309                                 ready = sp->file->readyL;
 310                                 guns = sp->specs->gunL;
 311                                 car = sp->specs->carL;
 312                         }
 313                         if (!guns && !car)
 314                                 continue;
 315                         if ((ready & R_LOADED) == 0)
 316                                 continue;
 317                         closest = closestenemy(sp, r ? 'r' : 'l', 0);
 318                         if (closest == 0)
 319                                 continue;
 320                         if (range(closest, sp) > range(sp, closestenemy(sp, r ? 'r' : 'l', 1)))
 321                                 continue;
 322                         if (closest->file->struck)
 323                                 continue;
 324                         target = range(sp, closest);
 325                         if (target > 10)
 326                                 continue;
 327                         if (!guns && target >= 3)
 328                                 continue;
 329                         load = L_ROUND;
 330                         if (target == 1 && sp->file->loadwith == L_GRAPE)
 331                                 load = L_GRAPE;
 332                         if (target <= 3 && closest->file->FS)
 333                                 load = L_CHAIN;
 334                         if (target == 1 && load != L_GRAPE)
 335                                 load = L_DOUBLE;
 336                         if (load > L_CHAIN && target < 6)
 337                                 shootat = HULL;
 338                         else
 339                                 shootat = RIGGING;
 340                         rakehim = gunsbear(sp, closest)
 341                                 && !gunsbear(closest, sp);
 342                         temp = portside(closest, sp, 1)
 343                                 - closest->file->dir + 1;
 344                         if (temp < 1)
 345                                 temp += 8;
 346                         if (temp > 8)
 347                                 temp -= 8;
 348                         sternrake = temp > 4 && temp < 6;
 349                         index = guns;
 350                         if (target < 3)
 351                                 index += car;
 352                         index = (index - 1) / 3;
 353                         index = index > 8 ? 8 : index;
 354                         if (!rakehim)
 355                                 hit = HDT[index][target-1];
 356                         else
 357                                 hit = HDTrake[index][target-1];
 358                         if (rakehim && sternrake)
 359                                 hit++;
 360                         hit += QUAL[index][capship(sp)->specs->qual - 1];
 361                         for (n = 0; n < 3 && sp->file->captured == 0; n++)
 362                                 if (!crew[n])
 363                                         if (index <= 5)
 364                                                 hit--;
 365                                         else
 366                                                 hit -= 2;
 367                         if (ready & R_INITIAL) {
 368                                 if (!r)
 369                                         sp->file->readyL &= ~R_INITIAL;
 370                                 else
 371                                         sp->file->readyR &= ~R_INITIAL;
 372                                 if (index <= 3)
 373                                         hit++;
 374                                 else
 375                                         hit += 2;
 376                         }
 377                         if (sp->file->captured != 0)
 378                                 if (index <= 1)
 379                                         hit--;
 380                                 else
 381                                         hit -= 2;
 382                         hit += AMMO[index][load - 1];
 383                         temp = sp->specs->class;
 384                         if ((temp >= 5 || temp == 1) && windspeed == 5)
 385                                 hit--;
 386                         if (windspeed == 6 && temp == 4)
 387                                 hit -= 2;
 388                         if (windspeed == 6 && temp <= 3)
 389                                 hit--;
 390                         if (hit >= 0) {
 391                                 if (load != L_GRAPE)
 392                                         hit = hit > 10 ? 10 : hit;
 393                                 table(shootat, load, hit, closest, sp, die());
 394                         }
 395                 }
 396         }
 397 }
 398
 399 int
 400 next()
 401 {
 402         if (++turn % 55 == 0)
 403                 if (alive)
 404                         alive = 0;
 405                 else
 406                         people = 0;
 407         if (people <= 0 || windspeed == 7) {
 408                 struct ship *s;
 409                 struct ship *bestship = NULL;
 410                 float net, best = 0.0;
 411                 foreachship(s) {
 412                         if (*s->file->captain)
 413                                 continue;
 414                         net = (float)s->file->points / s->specs->pts;
 415                         if (net > best) {
 416                                 best = net;
 417                                 bestship = s;
 418                         }
 419                 }
 420                 if (best > 0.0) {
 421                         char *p = getenv("WOTD");
 422                         if (p == 0)
 423                                 p = "Driver";
 424                         if (islower(*p))
 425                                 *p = toupper(*p);
 426                         (void) strncpy(bestship->file->captain, p,
 427                                 sizeof bestship->file->captain);
 428                         bestship->file->captain
 429                                 [sizeof bestship->file->captain - 1] = 0;
 430                         logger(bestship);
 431                 }
 432                 return -1;
 433         }
 434         Write(W_TURN, SHIP(0), 0, turn, 0, 0, 0);
 435         if (turn % 7 == 0 && (die() >= cc->windchange || !windspeed)) {
 436                 switch (die()) {
 437                 case 1:
 438                         winddir = 1;
 439                         break;
 440                 case 2:
 441                         break;
 442                 case 3:
 443                         winddir++;
 444                         break;
 445                 case 4:
 446                         winddir--;
 447                         break;
 448                 case 5:
 449                         winddir += 2;
 450                         break;
 451                 case 6:
 452                         winddir -= 2;
 453                         break;
 454                 }
 455                 if (winddir > 8)
 456                         winddir -= 8;
 457                 if (winddir < 1)
 458                         winddir += 8;
 459                 if (windspeed)
 460                         switch (die()) {
 461                         case 1:
 462                         case 2:
 463                                 windspeed--;
 464                                 break;
 465                         case 5:
 466                         case 6:
 467                                 windspeed++;
 468                                 break;
 469                         }
 470                 else
 471                         windspeed++;
 472                 Write(W_WIND, SHIP(0), 0, winddir, windspeed, 0, 0);
 473         }
 474         return 0;
 475 }