mille/move.c

   1 /*      $NetBSD: move.c,v 1.15 2004/11/05 21:30:32 dsl 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[] = "@(#)move.c      8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: move.c,v 1.15 2004/11/05 21:30:32 dsl Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <termios.h>
  42
  43 #ifdef DEBUG
  44 #include <sys/param.h>
  45 #endif
  46
  47 #include        "mille.h"
  48 #ifndef unctrl
  49 #include        "unctrl.h"
  50 #endif
  51
  52 /*
  53  * @(#)move.c   1.2 (Berkeley) 3/28/83
  54  */
  55
  56 #undef  CTRL
  57 #define CTRL(c)         (c - 'A' + 1)
  58
  59 void
  60 domove()
  61 {
  62         PLAY    *pp;
  63         int     i, j;
  64         bool    goodplay;
  65
  66         pp = &Player[Play];
  67         for (i = 0, j = 0; i < HAND_SZ; i++)
  68                 if (pp->hand[i] != -1)
  69                         j++;
  70         if (!j) {
  71                 nextplay();
  72                 return;
  73         }
  74         if (Play == PLAYER)
  75                 getmove();
  76         else
  77                 calcmove();
  78         Next = FALSE;
  79         goodplay = TRUE;
  80         switch (Movetype) {
  81           case M_DISCARD:
  82                 if (haspicked(pp)) {
  83                         if (pp->hand[Card_no] == C_INIT)
  84                                 if (Card_no == 6)
  85                                         Finished = TRUE;
  86                                 else
  87                                         error("no card there");
  88                         else {
  89                                 if (is_safety(pp->hand[Card_no])) {
  90                                         error("discard a safety?");
  91                                         goodplay = FALSE;
  92                                         break;
  93                                 }
  94                                 Discard = pp->hand[Card_no];
  95                                 pp->hand[Card_no] = C_INIT;
  96                                 Next = TRUE;
  97                                 if (Play == PLAYER)
  98                                         account(Discard);
  99                         }
 100                 }
 101                 else
 102                         error("must pick first");
 103                 break;
 104           case M_PLAY:
 105                 goodplay = playcard(pp);
 106                 break;
 107           case M_DRAW:
 108                 Card_no = 0;
 109                 if (Topcard <= Deck)
 110                         error("no more cards");
 111                 else if (haspicked(pp))
 112                         error("already picked");
 113                 else {
 114                         pp->hand[0] = *--Topcard;
 115 #ifdef DEBUG
 116                         if (Debug)
 117                                 fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
 118 #endif
 119 acc:
 120                         if (Play == COMP) {
 121                                 account(*Topcard);
 122                                 if (is_safety(*Topcard))
 123                                         pp->safety[*Topcard-S_CONV] = S_IN_HAND;
 124                         }
 125                         if (pp->hand[1] == C_INIT && Topcard > Deck) {
 126                                 Card_no = 1;
 127                                 pp->hand[1] = *--Topcard;
 128 #ifdef DEBUG
 129                                 if (Debug)
 130                                         fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
 131 #endif
 132                                 goto acc;
 133                         }
 134                         pp->new_battle = FALSE;
 135                         pp->new_speed = FALSE;
 136                 }
 137                 break;
 138
 139           case M_ORDER:
 140                 break;
 141         }
 142         /*
 143          * move blank card to top by one of two methods.  If the
 144          * computer's hand was sorted, the randomness for picking
 145          * between equally valued cards would be lost
 146          */
 147         if (Order && Movetype != M_DRAW && goodplay && pp == &Player[PLAYER])
 148                 sort(pp->hand);
 149         else
 150                 for (i = 1; i < HAND_SZ; i++)
 151                         if (pp->hand[i] == C_INIT) {
 152                                 for (j = 0; pp->hand[j] == C_INIT; j++)
 153                                         if (j >= HAND_SZ) {
 154                                                 j = 0;
 155                                                 break;
 156                                         }
 157                                 pp->hand[i] = pp->hand[j];
 158                                 pp->hand[j] = C_INIT;
 159                         }
 160         if (Topcard <= Deck)
 161                 check_go();
 162         if (Next)
 163                 nextplay();
 164 }
 165
 166 /*
 167  *      Check and see if either side can go.  If they cannot,
 168  * the game is over
 169  */
 170 void
 171 check_go()
 172 {
 173         CARD    card;
 174         PLAY    *pp, *op;
 175         int     i;
 176
 177         for (pp = Player; pp < &Player[2]; pp++) {
 178                 op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
 179                 for (i = 0; i < HAND_SZ; i++) {
 180                         card = pp->hand[i];
 181                         if (is_safety(card) || canplay(pp, op, card)) {
 182 #ifdef DEBUG
 183                                 if (Debug) {
 184                                         fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
 185                                         fprintf(outf, "is_safety(card) = %d, ", is_safety(card));
 186                                         fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
 187                                 }
 188 #endif
 189                                 return;
 190                         }
 191 #ifdef DEBUG
 192                         else if (Debug)
 193                                 fprintf(outf, "CHECK_GO: cannot play %s\n",
 194                                     C_name[card]);
 195 #endif
 196                 }
 197         }
 198         Finished = TRUE;
 199 }
 200
 201 int
 202 playcard(pp)
 203         PLAY    *pp;
 204 {
 205         int     v;
 206         CARD    card;
 207
 208         /*
 209          * check and see if player has picked
 210          */
 211         switch (pp->hand[Card_no]) {
 212           default:
 213                 if (!haspicked(pp))
 214 mustpick:
 215                         return error("must pick first");
 216           case C_GAS_SAFE:      case C_SPARE_SAFE:
 217           case C_DRIVE_SAFE:    case C_RIGHT_WAY:
 218                 break;
 219         }
 220
 221         card = pp->hand[Card_no];
 222 #ifdef DEBUG
 223         if (Debug)
 224                 fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
 225 #endif
 226         Next = FALSE;
 227         switch (card) {
 228           case C_200:
 229                 if (pp->nummiles[C_200] == 2)
 230                         return error("only two 200's per hand");
 231           case C_100:   case C_75:
 232                 if (pp->speed == C_LIMIT)
 233                         return error("limit of 50");
 234           case C_50:
 235                 if (pp->mileage + Value[card] > End)
 236                         return error("puts you over %d", End);
 237           case C_25:
 238                 if (!pp->can_go)
 239                         return error("cannot move now");
 240                 pp->nummiles[card]++;
 241                 v = Value[card];
 242                 pp->total += v;
 243                 pp->hand_tot += v;
 244                 if ((pp->mileage += v) == End)
 245                         check_ext(FALSE);
 246                 break;
 247
 248           case C_GAS:   case C_SPARE:   case C_REPAIRS:
 249                 if (pp->battle != opposite(card))
 250                         return error("can't play \"%s\"", C_name[card]);
 251                 pp->battle = card;
 252                 if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
 253                         pp->can_go = TRUE;
 254                 break;
 255
 256           case C_GO:
 257                 if (pp->battle != C_INIT && pp->battle != C_STOP
 258                     && !is_repair(pp->battle))
 259                         return error("cannot play \"Go\" on a \"%s\"",
 260                             C_name[pp->battle]);
 261                 pp->battle = C_GO;
 262                 pp->can_go = TRUE;
 263                 break;
 264
 265           case C_END_LIMIT:
 266                 if (pp->speed != C_LIMIT)
 267                         return error("not limited");
 268                 pp->speed = C_END_LIMIT;
 269                 break;
 270
 271           case C_EMPTY: case C_FLAT:    case C_CRASH:
 272           case C_STOP:
 273                 pp = &Player[other(Play)];
 274                 if (!pp->can_go)
 275                         return error("opponent cannot go");
 276                 else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
 277 protected:
 278                         return error("opponent is protected");
 279                 pp->battle = card;
 280                 pp->new_battle = TRUE;
 281                 pp->can_go = FALSE;
 282                 pp = &Player[Play];
 283                 break;
 284
 285           case C_LIMIT:
 286                 pp = &Player[other(Play)];
 287                 if (pp->speed == C_LIMIT)
 288                         return error("opponent has limit");
 289                 if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
 290                         goto protected;
 291                 pp->speed = C_LIMIT;
 292                 pp->new_speed = TRUE;
 293                 pp = &Player[Play];
 294                 break;
 295
 296           case C_GAS_SAFE:      case C_SPARE_SAFE:
 297           case C_DRIVE_SAFE:    case C_RIGHT_WAY:
 298                 if (pp->battle == opposite(card)
 299                     || (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
 300                         if (!(card == C_RIGHT_WAY && !is_repair(pp->battle))) {
 301                                 pp->battle = C_GO;
 302                                 pp->can_go = TRUE;
 303                         }
 304                         if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
 305                                 pp->speed = C_INIT;
 306                         if (pp->new_battle
 307                             || (pp->new_speed && card == C_RIGHT_WAY)) {
 308                                 pp->coups[card - S_CONV] = TRUE;
 309                                 pp->total += SC_COUP;
 310                                 pp->hand_tot += SC_COUP;
 311                                 pp->coupscore += SC_COUP;
 312                         }
 313                 }
 314                 /*
 315                  * if not coup, must pick first
 316                  */
 317                 else if (pp->hand[0] == C_INIT && Topcard > Deck)
 318                         goto mustpick;
 319                 pp->safety[card - S_CONV] = S_PLAYED;
 320                 pp->total += SC_SAFETY;
 321                 pp->hand_tot += SC_SAFETY;
 322                 if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
 323                         pp->total += SC_ALL_SAFE;
 324                         pp->hand_tot += SC_ALL_SAFE;
 325                 }
 326                 if (card == C_RIGHT_WAY) {
 327                         if (pp->speed == C_LIMIT)
 328                                 pp->speed = C_INIT;
 329                         if (pp->battle == C_STOP || pp->battle == C_INIT) {
 330                                 pp->can_go = TRUE;
 331                                 pp->battle = C_INIT;
 332                         }
 333                         if (!pp->can_go && is_repair(pp->battle))
 334                                 pp->can_go = TRUE;
 335                 }
 336                 Next = -1;
 337                 break;
 338
 339           case C_INIT:
 340                 error("no card there");
 341                 Next = -1;
 342                 break;
 343         }
 344         if (pp == &Player[PLAYER])
 345                 account(card);
 346         pp->hand[Card_no] = C_INIT;
 347         Next = (Next == (bool)-1 ? FALSE : TRUE);
 348         return TRUE;
 349 }
 350
 351 void
 352 getmove()
 353 {
 354         char    c;
 355 #ifdef EXTRAP
 356         static bool     last_ex = FALSE;        /* set if last command was E */
 357
 358         if (last_ex) {
 359                 undoex();
 360                 prboard();
 361                 last_ex = FALSE;
 362         }
 363 #endif
 364         for (;;) {
 365                 prompt(MOVEPROMPT);
 366                 leaveok(Board, FALSE);
 367                 refresh();
 368                 while ((c = readch()) == killchar() || c == erasechar())
 369                         continue;
 370                 if (islower((unsigned char)c))
 371                         c = toupper((unsigned char)c);
 372                 if (isprint((unsigned char)c) && !isspace((unsigned char)c)) {
 373                         addch(c);
 374                         refresh();
 375                 }
 376                 switch (c) {
 377                   case 'P':             /* Pick */
 378                         Movetype = M_DRAW;
 379                         goto ret;
 380                   case 'U':             /* Use Card */
 381                   case 'D':             /* Discard Card */
 382                         if ((Card_no = getcard()) < 0)
 383                                 break;
 384                         Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
 385                         goto ret;
 386                   case 'O':             /* Order */
 387                         Order = !Order;
 388                         if (Window == W_SMALL) {
 389                                 if (!Order)
 390                                         mvwaddstr(Score, 12, 21,
 391                                                   "o: order hand");
 392                                 else
 393                                         mvwaddstr(Score, 12, 21,
 394                                                   "o: stop ordering");
 395                                 wclrtoeol(Score);
 396                         }
 397                         Movetype = M_ORDER;
 398                         goto ret;
 399                   case 'Q':             /* Quit */
 400                         rub(0);         /* Same as a rubout */
 401                         break;
 402                   case 'W':             /* Window toggle */
 403                         Window = nextwin(Window);
 404                         newscore();
 405                         prscore(TRUE);
 406                         wrefresh(Score);
 407                         break;
 408                   case 'R':             /* Redraw screen */
 409                   case CTRL('L'):
 410                         wrefresh(curscr);
 411                         break;
 412                   case 'S':             /* Save game */
 413                         On_exit = FALSE;
 414                         save();
 415                         break;
 416                   case 'E':             /* Extrapolate */
 417 #ifdef EXTRAP
 418                         if (last_ex)
 419                                 break;
 420                         Finished = TRUE;
 421                         if (Window != W_FULL)
 422                                 newscore();
 423                         prscore(FALSE);
 424                         wrefresh(Score);
 425                         last_ex = TRUE;
 426                         Finished = FALSE;
 427 #else
 428                         error("%c: command not implemented", c);
 429 #endif
 430                         break;
 431                   case '\r':            /* Ignore RETURNs and   */
 432                   case '\n':            /* Line Feeds           */
 433                   case ' ':             /* Spaces               */
 434                   case '\0':            /* and nulls            */
 435                         break;
 436 #ifdef DEBUG
 437                   case 'Z':             /* Debug code */
 438                         if (!Debug && outf == NULL) {
 439                                 char    buf[MAXPATHLEN];
 440                                 char    *sp;
 441
 442                                 prompt(FILEPROMPT);
 443                                 leaveok(Board, FALSE);
 444                                 refresh();
 445 over:
 446                                 sp = buf;
 447                                 while ((*sp = readch()) != '\n') {
 448                                         if (*sp == killchar())
 449                                                 goto over;
 450                                         else if (*sp == erasechar()) {
 451                                                 if (--sp < buf)
 452                                                         sp = buf;
 453                                                 else {
 454                                                         addch('\b');
 455                                                         if (*sp < ' ')
 456                                                             addch('\b');
 457                                                         clrtoeol();
 458                                                 }
 459                                         }
 460                                         else
 461                                                 addstr(unctrl(*sp++));
 462                                         refresh();
 463                                 }
 464                                 *sp = '\0';
 465                                 leaveok(Board, TRUE);
 466                                 if ((outf = fopen(buf, "w")) == NULL)
 467                                         warn("%s", buf);
 468                                 setbuf(outf, (char *)NULL);
 469                         }
 470                         Debug = !Debug;
 471                         break;
 472 #endif
 473                   default:
 474                         error("unknown command: %s", unctrl(c));
 475                         break;
 476                 }
 477         }
 478 ret:
 479         leaveok(Board, TRUE);
 480 }
 481
 482 /*
 483  * return whether or not the player has picked
 484  */
 485 int
 486 haspicked(pp)
 487         const PLAY      *pp;
 488 {
 489         int     card;
 490
 491         if (Topcard <= Deck)
 492                 return TRUE;
 493         switch (pp->hand[Card_no]) {
 494           case C_GAS_SAFE:      case C_SPARE_SAFE:
 495           case C_DRIVE_SAFE:    case C_RIGHT_WAY:
 496                 card = 1;
 497                 break;
 498           default:
 499                 card = 0;
 500                 break;
 501         }
 502         return (pp->hand[card] != C_INIT);
 503 }
 504
 505 void
 506 account(card)
 507         CARD    card;
 508 {
 509         CARD    oppos;
 510
 511         if (card == C_INIT)
 512                 return;
 513         ++Numseen[card];
 514         if (Play == COMP)
 515                 switch (card) {
 516                   case C_GAS_SAFE:
 517                   case C_SPARE_SAFE:
 518                   case C_DRIVE_SAFE:
 519                         oppos = opposite(card);
 520                         Numgos += Numcards[oppos] - Numseen[oppos];
 521                         break;
 522                   case C_CRASH:
 523                   case C_FLAT:
 524                   case C_EMPTY:
 525                   case C_STOP:
 526                         Numgos++;
 527                         break;
 528                 }
 529 }
 530
 531 void
 532 prompt(promptno)
 533         int     promptno;
 534 {
 535         static const char       *const names[] = {
 536                                 ">>:Move:",
 537                                 "Really?",
 538                                 "Another hand?",
 539                                 "Another game?",
 540                                 "Save game?",
 541                                 "Same file?",
 542                                 "file:",
 543                                 "Extension?",
 544                                 "Overwrite file?",
 545                         };
 546         static int      last_prompt = -1;
 547
 548         if (promptno == last_prompt)
 549                 move(MOVE_Y, MOVE_X + strlen(names[promptno]) + 1);
 550         else {
 551                 move(MOVE_Y, MOVE_X);
 552                 if (promptno == MOVEPROMPT)
 553                         standout();
 554                 addstr(names[promptno]);
 555                 if (promptno == MOVEPROMPT)
 556                         standend();
 557                 addch(' ');
 558                 last_prompt = promptno;
 559         }
 560         clrtoeol();
 561 }
 562
 563 void
 564 sort(hand)
 565         CARD    *hand;
 566 {
 567         CARD    *cp, *tp;
 568         CARD    temp;
 569
 570         cp = hand;
 571         hand += HAND_SZ;
 572         for ( ; cp < &hand[-1]; cp++)
 573                 for (tp = cp + 1; tp < hand; tp++)
 574                         if (*cp > *tp) {
 575                                 temp = *cp;
 576                                 *cp = *tp;
 577                                 *tp = temp;
 578                         }
 579 }