cribbage/io.c

   1 /*      $NetBSD: io.c,v 1.27 2012/10/13 20:36:06 dholland Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1980, 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[] = "@(#)io.c        8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: io.c,v 1.27 2012/10/13 20:36:06 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <ctype.h>
  42 #include <curses.h>
  43 #include <signal.h>
  44 #include <stdarg.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #include <termios.h>
  48 #include <unistd.h>
  49
  50 #include "deck.h"
  51 #include "cribbage.h"
  52 #include "cribcur.h"
  53
  54 #define LINESIZE                128
  55
  56 #ifdef CTRL
  57 #undef CTRL
  58 #endif
  59 #define CTRL(X)                 (X - 'A' + 1)
  60
  61 static int msgcrd(CARD, BOOLEAN, const char *, BOOLEAN);
  62 static void printcard(WINDOW *, unsigned, CARD, BOOLEAN);
  63 static int incard(CARD *);
  64 static void wait_for(int);
  65 static int readchar(void);
  66
  67 static char linebuf[LINESIZE];
  68
  69 static const char *const rankname[RANKS] = {
  70         "ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
  71         "EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
  72 };
  73
  74 static const char *const rankchar[RANKS] = {
  75         "A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
  76 };
  77
  78 static const char *const suitname[SUITS] = {
  79         "SPADES", "HEARTS", "DIAMONDS", "CLUBS"
  80 };
  81
  82 static const char *const suitchar[SUITS] = {"S", "H", "D", "C"};
  83
  84 /*
  85  * msgcard:
  86  *      Call msgcrd in one of two forms
  87  */
  88 int
  89 msgcard(CARD c, BOOLEAN brief)
  90 {
  91         if (brief)
  92                 return (msgcrd(c, TRUE, NULL, TRUE));
  93         else
  94                 return (msgcrd(c, FALSE, " of ", FALSE));
  95 }
  96
  97 /*
  98  * msgcrd:
  99  *      Print the value of a card in ascii
 100  */
 101 static int
 102 msgcrd(CARD c, BOOLEAN brfrank, const char *mid, BOOLEAN brfsuit)
 103 {
 104         if (c.rank == EMPTY || c.suit == EMPTY)
 105                 return (FALSE);
 106         if (brfrank)
 107                 addmsg("%1.1s", rankchar[c.rank]);
 108         else
 109                 addmsg("%s", rankname[c.rank]);
 110         if (mid != NULL)
 111                 addmsg("%s", mid);
 112         if (brfsuit)
 113                 addmsg("%1.1s", suitchar[c.suit]);
 114         else
 115                 addmsg("%s", suitname[c.suit]);
 116         return (TRUE);
 117 }
 118
 119 /*
 120  * printcard:
 121  *      Print out a card.
 122  */
 123 static void
 124 printcard(WINDOW *win, unsigned cardno, CARD c, BOOLEAN blank)
 125 {
 126         prcard(win, cardno * 2, cardno, c, blank);
 127 }
 128
 129 /*
 130  * prcard:
 131  *      Print out a card on the window at the specified location
 132  */
 133 void
 134 prcard(WINDOW *win, int y, int x, CARD c, BOOLEAN blank)
 135 {
 136         if (c.rank == EMPTY)
 137                 return;
 138
 139         mvwaddstr(win, y + 0, x, "+-----+");
 140         mvwaddstr(win, y + 1, x, "|     |");
 141         mvwaddstr(win, y + 2, x, "|     |");
 142         mvwaddstr(win, y + 3, x, "|     |");
 143         mvwaddstr(win, y + 4, x, "+-----+");
 144         if (!blank) {
 145                 mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
 146                 waddch(win, suitchar[c.suit][0]);
 147                 mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
 148                 waddch(win, suitchar[c.suit][0]);
 149         }
 150 }
 151
 152 /*
 153  * prhand:
 154  *      Print a hand of n cards
 155  */
 156 void
 157 prhand(const CARD h[], unsigned n, WINDOW *win, BOOLEAN blank)
 158 {
 159         unsigned i;
 160
 161         werase(win);
 162         for (i = 0; i < n; i++)
 163                 printcard(win, i, *h++, blank);
 164         wrefresh(win);
 165 }
 166
 167 /*
 168  * infrom:
 169  *      reads a card, supposedly in hand, accepting unambigous brief
 170  *      input, returns the index of the card found...
 171  */
 172 int
 173 infrom(const CARD hand[], int n, const char *prompt)
 174 {
 175         int i, j;
 176         CARD crd;
 177
 178         if (n < 1) {
 179                 printf("\nINFROM: %d = n < 1!!\n", n);
 180                 exit(74);
 181         }
 182         for (;;) {
 183                 msg("%s", prompt);
 184                 if (incard(&crd)) {     /* if card is full card */
 185                         if (!is_one(crd, hand, n))
 186                                 msg("That's not in your hand");
 187                         else {
 188                                 for (i = 0; i < n; i++)
 189                                         if (hand[i].rank == crd.rank &&
 190                                             hand[i].suit == crd.suit)
 191                                                 break;
 192                                 if (i >= n) {
 193                         printf("\nINFROM: is_one or something messed up\n");
 194                                         exit(77);
 195                                 }
 196                                 return (i);
 197                         }
 198                 } else                  /* if not full card... */
 199                         if (crd.rank != EMPTY) {
 200                                 for (i = 0; i < n; i++)
 201                                         if (hand[i].rank == crd.rank)
 202                                                 break;
 203                                 if (i >= n)
 204                                         msg("No such rank in your hand");
 205                                 else {
 206                                         for (j = i + 1; j < n; j++)
 207                                                 if (hand[j].rank == crd.rank)
 208                                                         break;
 209                                         if (j < n)
 210                                                 msg("Ambiguous rank");
 211                                         else
 212                                                 return (i);
 213                                 }
 214                         } else
 215                                 msg("Sorry, I missed that");
 216         }
 217         /* NOTREACHED */
 218 }
 219
 220 /*
 221  * incard:
 222  *      Inputs a card in any format.  It reads a line ending with a CR
 223  *      and then parses it.
 224  */
 225 static int
 226 incard(CARD *crd)
 227 {
 228         int i;
 229         int rnk, sut;
 230         char *line, *p, *p1;
 231         BOOLEAN retval;
 232
 233         retval = FALSE;
 234         rnk = sut = EMPTY;
 235         if (!(line = get_line()))
 236                 goto gotit;
 237         p = p1 = line;
 238         while (*p1 != ' ' && *p1 != '\0')
 239                 ++p1;
 240         *p1++ = '\0';
 241         if (*p == '\0')
 242                 goto gotit;
 243
 244         /* IMPORTANT: no real card has 2 char first name */
 245         if (strlen(p) == 2) {   /* check for short form */
 246                 rnk = EMPTY;
 247                 for (i = 0; i < RANKS; i++) {
 248                         if (*p == *rankchar[i]) {
 249                                 rnk = i;
 250                                 break;
 251                         }
 252                 }
 253                 if (rnk == EMPTY)
 254                         goto gotit;     /* it's nothing... */
 255                 ++p;            /* advance to next char */
 256                 sut = EMPTY;
 257                 for (i = 0; i < SUITS; i++) {
 258                         if (*p == *suitchar[i]) {
 259                                 sut = i;
 260                                 break;
 261                         }
 262                 }
 263                 if (sut != EMPTY)
 264                         retval = TRUE;
 265                 goto gotit;
 266         }
 267         rnk = EMPTY;
 268         for (i = 0; i < RANKS; i++) {
 269                 if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
 270                         rnk = i;
 271                         break;
 272                 }
 273         }
 274         if (rnk == EMPTY)
 275                 goto gotit;
 276         p = p1;
 277         while (*p1 != ' ' && *p1 != '\0')
 278                 ++p1;
 279         *p1++ = '\0';
 280         if (*p == '\0')
 281                 goto gotit;
 282         if (!strcmp("OF", p)) {
 283                 p = p1;
 284                 while (*p1 != ' ' && *p1 != '\0')
 285                         ++p1;
 286                 *p1++ = '\0';
 287                 if (*p == '\0')
 288                         goto gotit;
 289         }
 290         sut = EMPTY;
 291         for (i = 0; i < SUITS; i++) {
 292                 if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
 293                         sut = i;
 294                         break;
 295                 }
 296         }
 297         if (sut != EMPTY)
 298                 retval = TRUE;
 299 gotit:
 300         (*crd).rank = rnk;
 301         (*crd).suit = sut;
 302         return (retval);
 303 }
 304
 305 /*
 306  * getuchar:
 307  *      Reads and converts to upper case
 308  */
 309 int
 310 getuchar(void)
 311 {
 312         int c;
 313
 314         c = readchar();
 315         if (islower(c))
 316                 c = toupper(c);
 317         waddch(Msgwin, c);
 318         return (c);
 319 }
 320
 321 /*
 322  * number:
 323  *      Reads in a decimal number and makes sure it is between "lo" and
 324  *      "hi" inclusive.
 325  */
 326 int
 327 number(int lo, int hi, const char *prompt)
 328 {
 329         char *p;
 330         int sum;
 331
 332         for (sum = 0;;) {
 333                 msg("%s", prompt);
 334                 if (!(p = get_line()) || *p == '\0') {
 335                         msg(quiet ? "Not a number" :
 336                             "That doesn't look like a number");
 337                         continue;
 338                 }
 339                 sum = 0;
 340
 341                 if (!isdigit((unsigned char)*p))
 342                         sum = lo - 1;
 343                 else
 344                         while (isdigit((unsigned char)*p)) {
 345                                 sum = 10 * sum + (*p - '0');
 346                                 ++p;
 347                         }
 348
 349                 if (*p != ' ' && *p != '\t' && *p != '\0')
 350                         sum = lo - 1;
 351                 if (sum >= lo && sum <= hi)
 352                         break;
 353                 if (sum == lo - 1)
 354                         msg("that doesn't look like a number, try again --> ");
 355                 else
 356                 msg("%d is not between %d and %d inclusive, try again --> ",
 357                             sum, lo, hi);
 358         }
 359         return (sum);
 360 }
 361
 362 /*
 363  * msg:
 364  *      Display a message at the top of the screen.
 365  */
 366 static char Msgbuf[BUFSIZ] = {'\0'};
 367 static int Mpos = 0;
 368 static int Newpos = 0;
 369
 370 void
 371 msg(const char *fmt, ...)
 372 {
 373         va_list ap;
 374
 375         va_start(ap, fmt);
 376         (void)vsnprintf(&Msgbuf[Newpos], sizeof(Msgbuf)-Newpos, fmt, ap);
 377         Newpos = strlen(Msgbuf);
 378         va_end(ap);
 379         endmsg();
 380 }
 381
 382 /*
 383  * addmsg:
 384  *      Add things to the current message
 385  */
 386 void
 387 addmsg(const char *fmt, ...)
 388 {
 389         va_list ap;
 390
 391         va_start(ap, fmt);
 392         (void)vsnprintf(&Msgbuf[Newpos], sizeof(Msgbuf)-Newpos, fmt, ap);
 393         Newpos = strlen(Msgbuf);
 394         va_end(ap);
 395 }
 396
 397 /*
 398  * endmsg:
 399  *      Display a new msg.
 400  */
 401 static int Lineno = 0;
 402
 403 void
 404 endmsg(void)
 405 {
 406         static int lastline = 0;
 407         int len;
 408         char *mp, *omp;
 409
 410         /* All messages should start with uppercase */
 411         mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
 412         if (islower((unsigned char)Msgbuf[0]) && Msgbuf[1] != ')')
 413                 Msgbuf[0] = toupper((unsigned char)Msgbuf[0]);
 414         mp = Msgbuf;
 415         len = strlen(mp);
 416         if (len / MSG_X + Lineno >= MSG_Y) {
 417                 while (Lineno < MSG_Y) {
 418                         wmove(Msgwin, Lineno++, 0);
 419                         wclrtoeol(Msgwin);
 420                 }
 421                 Lineno = 0;
 422         }
 423         mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
 424         lastline = Lineno;
 425         do {
 426                 mvwaddstr(Msgwin, Lineno, 0, mp);
 427                 if ((len = strlen(mp)) > MSG_X) {
 428                         omp = mp;
 429                         for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
 430                                 continue;
 431                         while (*mp == ' ')
 432                                 mp--;
 433                         mp++;
 434                         wmove(Msgwin, Lineno, mp - omp);
 435                         wclrtoeol(Msgwin);
 436                 }
 437                 if (++Lineno >= MSG_Y)
 438                         Lineno = 0;
 439         } while (len > MSG_X);
 440         wclrtoeol(Msgwin);
 441         Mpos = len;
 442         Newpos = 0;
 443         wrefresh(Msgwin);
 444         refresh();
 445         wrefresh(Msgwin);
 446 }
 447
 448 /*
 449  * do_wait:
 450  *      Wait for the user to type ' ' before doing anything else
 451  */
 452 void
 453 do_wait(void)
 454 {
 455         static const char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};
 456
 457         if ((int)(Mpos + sizeof prompt) < MSG_X)
 458                 wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
 459         else {
 460                 mvwaddch(Msgwin, Lineno, 0, ' ');
 461                 wclrtoeol(Msgwin);
 462                 if (++Lineno >= MSG_Y)
 463                         Lineno = 0;
 464         }
 465         waddstr(Msgwin, prompt);
 466         wrefresh(Msgwin);
 467         wait_for(' ');
 468 }
 469
 470 /*
 471  * wait_for
 472  *      Sit around until the guy types the right key
 473  */
 474 static void
 475 wait_for(int ch)
 476 {
 477         int c;
 478
 479         if (ch == '\n')
 480                 while ((c = readchar()) != '\n')
 481                         continue;
 482         else
 483                 while (readchar() != ch)
 484                         continue;
 485 }
 486
 487 /*
 488  * readchar:
 489  *      Reads and returns a character, checking for gross input errors
 490  */
 491 static int
 492 readchar(void)
 493 {
 494         int cnt;
 495         unsigned char c;
 496
 497 over:
 498         cnt = 0;
 499         while (read(STDIN_FILENO, &c, sizeof(unsigned char)) <= 0)
 500                 if (cnt++ > 100) {      /* if we are getting infinite EOFs */
 501                         bye();          /* quit the game */
 502                         exit(1);
 503                 }
 504         if (c == CTRL('L')) {
 505                 wrefresh(curscr);
 506                 goto over;
 507         }
 508         if (c == '\r')
 509                 return ('\n');
 510         else
 511                 return (c);
 512 }
 513
 514 /*
 515  * get_line:
 516  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
 517  *      compressed to one space; a space is inserted before a ','
 518  */
 519 char *
 520 get_line(void)
 521 {
 522         size_t pos;
 523         int c, oy, ox;
 524         WINDOW *oscr;
 525
 526         oscr = stdscr;
 527         stdscr = Msgwin;
 528         getyx(stdscr, oy, ox);
 529         refresh();
 530         /* loop reading in the string, and put it in a temporary buffer */
 531         for (pos = 0; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
 532                         if (c == erasechar()) { /* process erase character */
 533                                 if (pos > 0) {
 534                                         int i;
 535
 536                                         pos--;
 537                                         for (i = strlen(unctrl(linebuf[pos])); i; i--)
 538                                                 addch('\b');
 539                                 }
 540                                 continue;
 541                         } else
 542                                 if (c == killchar()) {  /* process kill
 543                                                          * character */
 544                                         pos = 0;
 545                                         move(oy, ox);
 546                                         continue;
 547                                 } else
 548                                         if (pos == 0 && c == ' ')
 549                                                 continue;
 550                 if (pos >= LINESIZE - 1 || !(isprint(c) || c == ' '))
 551                         putchar(CTRL('G'));
 552                 else {
 553                         if (islower(c))
 554                                 c = toupper(c);
 555                         linebuf[pos++] = c;
 556                         addstr(unctrl(c));
 557                         Mpos++;
 558                 }
 559         }
 560         linebuf[pos] = '\0';
 561         stdscr = oscr;
 562         return (linebuf);
 563 }
 564
 565 void
 566 receive_intr(int signo __unused)
 567 {
 568         bye();
 569         exit(1);
 570 }
 571
 572 /*
 573  * bye:
 574  *      Leave the program, cleaning things up as we go.
 575  */
 576 void
 577 bye(void)
 578 {
 579         signal(SIGINT, SIG_IGN);
 580         mvcur(0, COLS - 1, LINES - 1, 0);
 581         fflush(stdout);
 582         endwin();
 583         putchar('\n');
 584 }