sail/dr_1.c

   1 /*      $NetBSD: dr_1.c,v 1.19 2003/08/07 09:37:41 agc 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. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)dr_1.c      8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: dr_1.c,v 1.19 2003/08/07 09:37:41 agc Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <ctype.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include "extern.h"
  46 #include "driver.h"
  47
  48 static int      fightitout(struct ship *, struct ship *, int);
  49
  50 void
  51 unfoul(void)
  52 {
  53         struct ship *sp;
  54         struct ship *to;
  55         int nat;
  56         int i;
  57
  58         foreachship(sp) {
  59                 if (sp->file->captain[0])
  60                         continue;
  61                 nat = capship(sp)->nationality;
  62                 foreachship(to) {
  63                         if (nat != capship(to)->nationality &&
  64                             !is_toughmelee(sp, to, 0, 0))
  65                                 continue;
  66                         for (i = fouled2(sp, to); --i >= 0;)
  67                                 if (dieroll() <= 2)
  68                                         cleanfoul(sp, to, 0);
  69                 }
  70         }
  71 }
  72
  73 void
  74 boardcomp(void)
  75 {
  76         int crew[3];
  77         struct ship *sp, *sq;
  78
  79         foreachship(sp) {
  80                 if (*sp->file->captain)
  81                         continue;
  82                 if (sp->file->dir == 0)
  83                         continue;
  84                 if (sp->file->struck || sp->file->captured != 0)
  85                         continue;
  86                 if (!snagged(sp))
  87                         continue;
  88                 crew[0] = sp->specs->crew1 != 0;
  89                 crew[1] = sp->specs->crew2 != 0;
  90                 crew[2] = sp->specs->crew3 != 0;
  91                 foreachship(sq) {
  92                         if (!Xsnagged2(sp, sq))
  93                                 continue;
  94                         if (meleeing(sp, sq))
  95                                 continue;
  96                         if (!sq->file->dir
  97                                 || sp->nationality == capship(sq)->nationality)
  98                                 continue;
  99                         switch (sp->specs->class - sq->specs->class) {
 100                         case -3: case -4: case -5:
 101                                 if (crew[0]) {
 102                                         /* OBP */
 103                                         sendbp(sp, sq, crew[0]*100, 0);
 104                                         crew[0] = 0;
 105                                 } else if (crew[1]){
 106                                         /* OBP */
 107                                         sendbp(sp, sq, crew[1]*10, 0);
 108                                         crew[1] = 0;
 109                                 }
 110                                 break;
 111                         case -2:
 112                                 if (crew[0] || crew[1]) {
 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 -1: case 0: case 1:
 120                                 if (crew[0]) {
 121                                         /* OBP */
 122                                         sendbp(sp, sq, crew[0]*100+crew[1]*10,
 123                                                 0);
 124                                         crew[0] = crew[1] = 0;
 125                                 }
 126                                 break;
 127                         case 2: case 3: case 4: case 5:
 128                                 /* OBP */
 129                                 sendbp(sp, sq, crew[0]*100+crew[1]*10+crew[2],
 130                                         0);
 131                                 crew[0] = crew[1] = crew[2] = 0;
 132                                 break;
 133                         }
 134                 }
 135         }
 136 }
 137
 138 static int
 139 fightitout(struct ship *from, struct ship *to, 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 - dieroll() / 3];
 177                 totalto += toinjured;
 178                 index = strengthto/10;
 179                 if (index > 8)
 180                         index = 8;
 181                 frominjured = MT[index][2 - dieroll() / 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, fromcap, totalfrom, crewfrom, pcfrom);
 191                 subtract(to, tocap, totalto, crewto, pcto);
 192                 makemsg(from, "boarders from %s repelled", to->shipname);
 193                 sprintf(message, "killed in melee: %d.  %s: %d",
 194                         totalto, from->shipname, totalfrom);
 195                 Writestr(W_SIGNAL, to, message);
 196                 if (key)
 197                         return 1;
 198         } else if (strengthto >= fromstrength * 3) {
 199                 unboard(from, to, 0);
 200                 subtract(from, fromcap, totalfrom, crewfrom, pcfrom);
 201                 subtract(to, tocap, totalto, crewto, pcto);
 202                 if (key) {
 203                         if (fromcap != from)
 204                                 Write(W_POINTS, fromcap,
 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, 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, topoints, 0, 0, 0);
 220                         mento = crewto[0] ? crewto[0] : crewto[1];
 221                         if (mento) {
 222                                 subtract(to, tocap, mento, crewto, pcto);
 223                                 subtract(from, to, - mento, crewfrom, 0);
 224                         }
 225                         sprintf(message, "captured by the %s!", to->shipname);
 226                         Writestr(W_SIGNAL, from, message);
 227                         sprintf(message, "killed in melee: %d.  %s: %d",
 228                                 totalto, from->shipname, totalfrom);
 229                         Writestr(W_SIGNAL, to, message);
 230                         mento = 0;
 231                         return 0;
 232                 }
 233         }
 234         return 0;
 235 }
 236
 237 void
 238 resolve(void)
 239 {
 240         int thwart;
 241         struct ship *sp, *sq;
 242
 243         foreachship(sp) {
 244                 if (sp->file->dir == 0)
 245                         continue;
 246                 for (sq = sp + 1; sq < ls; sq++)
 247                         if (sq->file->dir && meleeing(sp, sq) && meleeing(sq, sp))
 248                                 fightitout(sp, sq, 0);
 249                 thwart = 2;
 250                 foreachship(sq) {
 251                         if (sq->file->dir && meleeing(sq, sp))
 252                                 thwart = fightitout(sp, sq, 1);
 253                         if (!thwart)
 254                                 break;
 255                 }
 256                 if (!thwart) {
 257                         foreachship(sq) {
 258                                 if (sq->file->dir && meleeing(sq, sp))
 259                                         unboard(sq, sp, 0);
 260                                 unboard(sp, sq, 0);
 261                         }
 262                         unboard(sp, sp, 1);
 263                 } else if (thwart == 2)
 264                         unboard(sp, sp, 1);
 265         }
 266 }
 267
 268 void
 269 compcombat(void)
 270 {
 271         int n;
 272         struct ship *sp;
 273         struct ship *closest;
 274         int crew[3], men = 0, target, temp;
 275         int r, guns, ready, load, car;
 276         int index, rakehim, sternrake;
 277         int shootat, hit;
 278
 279         foreachship(sp) {
 280                 if (sp->file->captain[0] || sp->file->dir == 0)
 281                         continue;
 282                 crew[0] = sp->specs->crew1;
 283                 crew[1] = sp->specs->crew2;
 284                 crew[2] = sp->specs->crew3;
 285                 for (n = 0; n < 3; n++) {
 286                         if (sp->file->OBP[n].turnsent)
 287                                 men += sp->file->OBP[n].mensent;
 288                 }
 289                 for (n = 0; n < 3; n++) {
 290                         if (sp->file->DBP[n].turnsent)
 291                                 men += sp->file->DBP[n].mensent;
 292                 }
 293                 if (men){
 294                         crew[0] = men/100 ? 0 : crew[0] != 0;
 295                         crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
 296                         crew[2] = men%10 ? 0 : crew[2] != 0;
 297                 }
 298                 for (r = 0; r < 2; r++) {
 299                         if (!crew[2])
 300                                 continue;
 301                         if (sp->file->struck)
 302                                 continue;
 303                         if (r) {
 304                                 ready = sp->file->readyR;
 305                                 guns = sp->specs->gunR;
 306                                 car = sp->specs->carR;
 307                         } else {
 308                                 ready = sp->file->readyL;
 309                                 guns = sp->specs->gunL;
 310                                 car = sp->specs->carL;
 311                         }
 312                         if (!guns && !car)
 313                                 continue;
 314                         if ((ready & R_LOADED) == 0)
 315                                 continue;
 316                         closest = closestenemy(sp, r ? 'r' : 'l', 0);
 317                         if (closest == 0)
 318                                 continue;
 319                         if (range(closest, sp) > range(sp, closestenemy(sp, r ? 'r' : 'l', 1)))
 320                                 continue;
 321                         if (closest->file->struck)
 322                                 continue;
 323                         target = range(sp, closest);
 324                         if (target > 10)
 325                                 continue;
 326                         if (!guns && target >= 3)
 327                                 continue;
 328                         load = L_ROUND;
 329                         if (target == 1 && sp->file->loadwith == L_GRAPE)
 330                                 load = L_GRAPE;
 331                         if (target <= 3 && closest->file->FS)
 332                                 load = L_CHAIN;
 333                         if (target == 1 && load != L_GRAPE)
 334                                 load = L_DOUBLE;
 335                         if (load > L_CHAIN && target < 6)
 336                                 shootat = HULL;
 337                         else
 338                                 shootat = RIGGING;
 339                         rakehim = gunsbear(sp, closest)
 340                                 && !gunsbear(closest, sp);
 341                         temp = portside(closest, sp, 1)
 342                                 - closest->file->dir + 1;
 343                         if (temp < 1)
 344                                 temp += 8;
 345                         if (temp > 8)
 346                                 temp -= 8;
 347                         sternrake = temp > 4 && temp < 6;
 348                         index = guns;
 349                         if (target < 3)
 350                                 index += car;
 351                         index = (index - 1) / 3;
 352                         index = index > 8 ? 8 : index;
 353                         if (!rakehim)
 354                                 hit = HDT[index][target-1];
 355                         else
 356                                 hit = HDTrake[index][target-1];
 357                         if (rakehim && sternrake)
 358                                 hit++;
 359                         hit += QUAL[index][capship(sp)->specs->qual - 1];
 360                         for (n = 0; n < 3 && sp->file->captured == 0; n++)
 361                                 if (!crew[n]) {
 362                                         if (index <= 5)
 363                                                 hit--;
 364                                         else
 365                                                 hit -= 2;
 366                                 }
 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                         }
 383                         hit += AMMO[index][load - 1];
 384                         temp = sp->specs->class;
 385                         if ((temp >= 5 || temp == 1) && windspeed == 5)
 386                                 hit--;
 387                         if (windspeed == 6 && temp == 4)
 388                                 hit -= 2;
 389                         if (windspeed == 6 && temp <= 3)
 390                                 hit--;
 391                         if (hit >= 0) {
 392                                 if (load != L_GRAPE)
 393                                         hit = hit > 10 ? 10 : hit;
 394                                 table(sp, closest, shootat, load, hit, dieroll());
 395                         }
 396                 }
 397         }
 398 }
 399
 400 int
 401 next(void)
 402 {
 403         if (++turn % 55 == 0) {
 404                 if (alive)
 405                         alive = 0;
 406                 else
 407                         people = 0;
 408         }
 409         if (people <= 0 || windspeed == 7) {
 410                 struct ship *s;
 411                 struct ship *bestship = NULL;
 412                 float net, best = 0.0;
 413                 foreachship(s) {
 414                         if (*s->file->captain)
 415                                 continue;
 416                         net = (float)s->file->points / s->specs->pts;
 417                         if (net > best) {
 418                                 best = net;
 419                                 bestship = s;
 420                         }
 421                 }
 422                 if (best > 0.0) {
 423                         char *tp = getenv("WOTD");
 424                         const char *p;
 425                         if (tp == 0)
 426                                 p = "Driver";
 427                         else {
 428                                 if (islower(*tp))
 429                                         *tp = toupper(*tp);
 430                                 p = tp;
 431                         }
 432                         strncpy(bestship->file->captain, p,
 433                                 sizeof bestship->file->captain);
 434                         bestship->file->captain
 435                                 [sizeof bestship->file->captain - 1] = 0;
 436                         logger(bestship);
 437                 }
 438                 return -1;
 439         }
 440         Write(W_TURN, SHIP(0), turn, 0, 0, 0);
 441         if (turn % 7 == 0 && (dieroll() >= cc->windchange || !windspeed)) {
 442                 switch (dieroll()) {
 443                 case 1:
 444                         winddir = 1;
 445                         break;
 446                 case 2:
 447                         break;
 448                 case 3:
 449                         winddir++;
 450                         break;
 451                 case 4:
 452                         winddir--;
 453                         break;
 454                 case 5:
 455                         winddir += 2;
 456                         break;
 457                 case 6:
 458                         winddir -= 2;
 459                         break;
 460                 }
 461                 if (winddir > 8)
 462                         winddir -= 8;
 463                 if (winddir < 1)
 464                         winddir += 8;
 465                 if (windspeed)
 466                         switch (dieroll()) {
 467                         case 1:
 468                         case 2:
 469                                 windspeed--;
 470                                 break;
 471                         case 5:
 472                         case 6:
 473                                 windspeed++;
 474                                 break;
 475                         }
 476                 else
 477                         windspeed++;
 478                 Write(W_WIND, SHIP(0), winddir, windspeed, 0, 0);
 479         }
 480         return 0;
 481 }