games/sail/dr_1.c

   1 /*      $NetBSD: dr_1.c,v 1.27 2009/03/14 22:52:52 dholland 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 1.27 2009/03/14 22:52:52 dholland 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 indx, 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 == NULL)
 152                 fromcap = from;
 153         if (tocap == NULL)
 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                 indx = fromstrength/10;
 174                 if (indx > 8)
 175                         indx = 8;
 176                 toinjured = MT[indx][2 - dieroll() / 3];
 177                 totalto += toinjured;
 178                 indx = strengthto/10;
 179                 if (indx > 8)
 180                         indx = 8;
 181                 frominjured = MT[indx][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                 snprintf(message, sizeof(message),
 194                         "killed in melee: %d.  %s: %d",
 195                         totalto, from->shipname, totalfrom);
 196                 send_signal(to, message);
 197                 if (key)
 198                         return 1;
 199         } else if (strengthto >= fromstrength * 3) {
 200                 unboard(from, to, 0);
 201                 subtract(from, fromcap, totalfrom, crewfrom, pcfrom);
 202                 subtract(to, tocap, totalto, crewto, pcto);
 203                 if (key) {
 204                         if (fromcap != from)
 205                                 send_points(fromcap,
 206                                         fromcap->file->points -
 207                                                 from->file->struck
 208                                                 ? from->specs->pts
 209                                                 : 2 * from->specs->pts);
 210
 211                         send_captured(from, to->file->index);
 212                         topoints = 2 * from->specs->pts + to->file->points;
 213                         if (from->file->struck)
 214                                 topoints -= from->specs->pts;
 215                         send_points(to, topoints);
 216                         mento = crewto[0] ? crewto[0] : crewto[1];
 217                         if (mento) {
 218                                 subtract(to, tocap, mento, crewto, pcto);
 219                                 subtract(from, to, - mento, crewfrom, 0);
 220                         }
 221                         snprintf(message, sizeof(message),
 222                                 "captured by the %s!", to->shipname);
 223                         send_signal(from, message);
 224                         snprintf(message, sizeof(message),
 225                                 "killed in melee: %d.  %s: %d",
 226                                 totalto, from->shipname, totalfrom);
 227                         send_signal(to, message);
 228                         mento = 0;
 229                         return 0;
 230                 }
 231         }
 232         return 0;
 233 }
 234
 235 void
 236 resolve(void)
 237 {
 238         int thwart;
 239         struct ship *sp, *sq;
 240
 241         foreachship(sp) {
 242                 if (sp->file->dir == 0)
 243                         continue;
 244                 for (sq = sp + 1; sq < ls; sq++)
 245                         if (sq->file->dir && meleeing(sp, sq) &&
 246                             meleeing(sq, sp))
 247                                 fightitout(sp, sq, 0);
 248                 thwart = 2;
 249                 foreachship(sq) {
 250                         if (sq->file->dir && meleeing(sq, sp))
 251                                 thwart = fightitout(sp, sq, 1);
 252                         if (!thwart)
 253                                 break;
 254                 }
 255                 if (!thwart) {
 256                         foreachship(sq) {
 257                                 if (sq->file->dir && meleeing(sq, sp))
 258                                         unboard(sq, sp, 0);
 259                                 unboard(sp, sq, 0);
 260                         }
 261                         unboard(sp, sp, 1);
 262                 } else if (thwart == 2)
 263                         unboard(sp, sp, 1);
 264         }
 265 }
 266
 267 void
 268 compcombat(void)
 269 {
 270         int n;
 271         struct ship *sp;
 272         struct ship *closest;
 273         int crew[3], men = 0, target, temp;
 274         int r, guns, ready, load, car;
 275         int indx, rakehim, sternrake;
 276         int shootat, hit;
 277
 278         foreachship(sp) {
 279                 if (sp->file->captain[0] || sp->file->dir == 0)
 280                         continue;
 281                 crew[0] = sp->specs->crew1;
 282                 crew[1] = sp->specs->crew2;
 283                 crew[2] = sp->specs->crew3;
 284                 for (n = 0; n < 3; n++) {
 285                         if (sp->file->OBP[n].turnsent)
 286                                 men += sp->file->OBP[n].mensent;
 287                 }
 288                 for (n = 0; n < 3; n++) {
 289                         if (sp->file->DBP[n].turnsent)
 290                                 men += sp->file->DBP[n].mensent;
 291                 }
 292                 if (men) {
 293                         crew[0] = men/100 ? 0 : crew[0] != 0;
 294                         crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
 295                         crew[2] = men%10 ? 0 : crew[2] != 0;
 296                 }
 297                 for (r = 0; r < 2; r++) {
 298                         if (!crew[2])
 299                                 continue;
 300                         if (sp->file->struck)
 301                                 continue;
 302                         if (r) {
 303                                 ready = sp->file->readyR;
 304                                 guns = sp->specs->gunR;
 305                                 car = sp->specs->carR;
 306                         } else {
 307                                 ready = sp->file->readyL;
 308                                 guns = sp->specs->gunL;
 309                                 car = sp->specs->carL;
 310                         }
 311                         if (!guns && !car)
 312                                 continue;
 313                         if ((ready & R_LOADED) == 0)
 314                                 continue;
 315                         closest = closestenemy(sp, r ? 'r' : 'l', 0);
 316                         if (closest == NULL)
 317                                 continue;
 318                         if (range(closest, sp) >
 319                             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                         indx = guns;
 349                         if (target < 3)
 350                                 indx += car;
 351                         indx = (indx - 1) / 3;
 352                         indx = indx > 8 ? 8 : indx;
 353                         if (!rakehim)
 354                                 hit = HDT[indx][target-1];
 355                         else
 356                                 hit = HDTrake[indx][target-1];
 357                         if (rakehim && sternrake)
 358                                 hit++;
 359                         hit += QUAL[indx][capship(sp)->specs->qual - 1];
 360                         for (n = 0; n < 3 && sp->file->captured == 0; n++) {
 361                                 if (!crew[n]) {
 362                                         if (indx <= 5)
 363                                                 hit--;
 364                                         else
 365                                                 hit -= 2;
 366                                 }
 367                         }
 368                         if (ready & R_INITIAL) {
 369                                 if (!r)
 370                                         sp->file->readyL &= ~R_INITIAL;
 371                                 else
 372                                         sp->file->readyR &= ~R_INITIAL;
 373                                 if (indx <= 3)
 374                                         hit++;
 375                                 else
 376                                         hit += 2;
 377                         }
 378                         if (sp->file->captured != 0) {
 379                                 if (indx <= 1)
 380                                         hit--;
 381                                 else
 382                                         hit -= 2;
 383                         }
 384                         hit += AMMO[indx][load - 1];
 385                         temp = sp->specs->class;
 386                         if ((temp >= 5 || temp == 1) && windspeed == 5)
 387                                 hit--;
 388                         if (windspeed == 6 && temp == 4)
 389                                 hit -= 2;
 390                         if (windspeed == 6 && temp <= 3)
 391                                 hit--;
 392                         if (hit >= 0) {
 393                                 if (load != L_GRAPE)
 394                                         hit = hit > 10 ? 10 : hit;
 395                                 table(sp, closest, shootat, load, hit,
 396                                       dieroll());
 397                         }
 398                 }
 399         }
 400 }
 401
 402 int
 403 next(void)
 404 {
 405         if (++turn % 55 == 0) {
 406                 if (alive)
 407                         alive = 0;
 408                 else
 409                         people = 0;
 410         }
 411         if (people <= 0 || windspeed == 7) {
 412                 struct ship *s;
 413                 struct ship *bestship = NULL;
 414                 float net, best = 0.0;
 415                 foreachship(s) {
 416                         if (*s->file->captain)
 417                                 continue;
 418                         net = (float)s->file->points / s->specs->pts;
 419                         if (net > best) {
 420                                 best = net;
 421                                 bestship = s;
 422                         }
 423                 }
 424                 if (best > 0.0 && bestship) {
 425                         char *tp = getenv("WOTD");
 426                         const char *p;
 427                         if (tp == NULL)
 428                                 p = "Driver";
 429                         else {
 430                                 *tp = toupper((unsigned char)*tp);
 431                                 p = tp;
 432                         }
 433                         strlcpy(bestship->file->captain, p,
 434                                 sizeof bestship->file->captain);
 435                         logger(bestship);
 436                 }
 437                 return -1;
 438         }
 439         send_turn(turn);
 440         if (turn % 7 == 0 && (dieroll() >= cc->windchange || !windspeed)) {
 441                 switch (dieroll()) {
 442                 case 1:
 443                         winddir = 1;
 444                         break;
 445                 case 2:
 446                         break;
 447                 case 3:
 448                         winddir++;
 449                         break;
 450                 case 4:
 451                         winddir--;
 452                         break;
 453                 case 5:
 454                         winddir += 2;
 455                         break;
 456                 case 6:
 457                         winddir -= 2;
 458                         break;
 459                 }
 460                 if (winddir > 8)
 461                         winddir -= 8;
 462                 if (winddir < 1)
 463                         winddir += 8;
 464                 if (windspeed)
 465                         switch (dieroll()) {
 466                         case 1:
 467                         case 2:
 468                                 windspeed--;
 469                                 break;
 470                         case 5:
 471                         case 6:
 472                                 windspeed++;
 473                                 break;
 474                         }
 475                 else
 476                         windspeed++;
 477                 send_wind( winddir, windspeed);
 478         }
 479         return 0;
 480 }