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move.c revision 1.6
      1 /*	$NetBSD: move.c,v 1.6 1997/05/23 23:09:41 jtc 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 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)move.c	8.1 (Berkeley) 5/31/93";
     39 #else
     40 static char rcsid[] = "$NetBSD: move.c,v 1.6 1997/05/23 23:09:41 jtc Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 #include <termios.h>
     45 
     46 #include	"mille.h"
     47 #ifndef	unctrl
     48 #include	"unctrl.h"
     49 #endif
     50 
     51 # ifdef	attron
     52 #	include	<term.h>
     53 # endif	attron
     54 
     55 /*
     56  * @(#)move.c	1.2 (Berkeley) 3/28/83
     57  */
     58 
     59 #undef	CTRL
     60 #define	CTRL(c)		(c - 'A' + 1)
     61 
     62 char	*Movenames[] = {
     63 		"M_DISCARD", "M_DRAW", "M_PLAY", "M_ORDER"
     64 	};
     65 
     66 domove()
     67 {
     68 	register PLAY	*pp;
     69 	register int	i, j;
     70 	register bool	goodplay;
     71 
     72 	pp = &Player[Play];
     73 	if (Play == PLAYER)
     74 		getmove();
     75 	else
     76 		calcmove();
     77 	Next = FALSE;
     78 	goodplay = TRUE;
     79 	switch (Movetype) {
     80 	  case M_DISCARD:
     81 		if (haspicked(pp)) {
     82 			if (pp->hand[Card_no] == C_INIT)
     83 				if (Card_no == 6)
     84 					Finished = TRUE;
     85 				else
     86 					error("no card there");
     87 			else {
     88 				if (issafety(pp->hand[Card_no])) {
     89 					error("discard a safety?");
     90 					goodplay = FALSE;
     91 					break;
     92 				}
     93 				Discard = pp->hand[Card_no];
     94 				pp->hand[Card_no] = C_INIT;
     95 				Next = TRUE;
     96 				if (Play == PLAYER)
     97 					account(Discard);
     98 			}
     99 		}
    100 		else
    101 			error("must pick first");
    102 		break;
    103 	  case M_PLAY:
    104 		goodplay = playcard(pp);
    105 		break;
    106 	  case M_DRAW:
    107 		Card_no = 0;
    108 		if (Topcard <= Deck)
    109 			error("no more cards");
    110 		else if (haspicked(pp))
    111 			error("already picked");
    112 		else {
    113 			pp->hand[0] = *--Topcard;
    114 #ifdef DEBUG
    115 			if (Debug)
    116 				fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
    117 #endif
    118 acc:
    119 			if (Play == COMP) {
    120 				account(*Topcard);
    121 				if (issafety(*Topcard))
    122 					pp->safety[*Topcard-S_CONV] = S_IN_HAND;
    123 			}
    124 			if (pp->hand[1] == C_INIT && Topcard > Deck) {
    125 				Card_no = 1;
    126 				pp->hand[1] = *--Topcard;
    127 #ifdef DEBUG
    128 				if (Debug)
    129 					fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
    130 #endif
    131 				goto acc;
    132 			}
    133 			pp->new_battle = FALSE;
    134 			pp->new_speed = FALSE;
    135 		}
    136 		break;
    137 
    138 	  case M_ORDER:
    139 		break;
    140 	}
    141 	/*
    142 	 * move blank card to top by one of two methods.  If the
    143 	 * computer's hand was sorted, the randomness for picking
    144 	 * between equally valued cards would be lost
    145 	 */
    146 	if (Order && Movetype != M_DRAW && goodplay && pp == &Player[PLAYER])
    147 		sort(pp->hand);
    148 	else
    149 		for (i = 1; i < HAND_SZ; i++)
    150 			if (pp->hand[i] == C_INIT) {
    151 				for (j = 0; pp->hand[j] == C_INIT; j++)
    152 					if (j >= HAND_SZ) {
    153 						j = 0;
    154 						break;
    155 					}
    156 				pp->hand[i] = pp->hand[j];
    157 				pp->hand[j] = C_INIT;
    158 			}
    159 	if (Topcard <= Deck)
    160 		check_go();
    161 	if (Next)
    162 		nextplay();
    163 }
    164 
    165 /*
    166  *	Check and see if either side can go.  If they cannot,
    167  * the game is over
    168  */
    169 check_go() {
    170 
    171 	register CARD	card;
    172 	register PLAY	*pp, *op;
    173 	register int	i;
    174 
    175 	for (pp = Player; pp < &Player[2]; pp++) {
    176 		op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
    177 		for (i = 0; i < HAND_SZ; i++) {
    178 			card = pp->hand[i];
    179 			if (issafety(card) || canplay(pp, op, card)) {
    180 #ifdef DEBUG
    181 				if (Debug) {
    182 					fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
    183 					fprintf(outf, "issafety(card) = %d, ", issafety(card));
    184 					fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
    185 				}
    186 #endif
    187 				return;
    188 			}
    189 #ifdef DEBUG
    190 			else if (Debug)
    191 				fprintf(outf, "CHECK_GO: cannot play %s\n",
    192 				    C_name[card]);
    193 #endif
    194 		}
    195 	}
    196 	Finished = TRUE;
    197 }
    198 
    199 playcard(pp)
    200 register PLAY	*pp;
    201 {
    202 	register int	v;
    203 	register CARD	card;
    204 
    205 	/*
    206 	 * check and see if player has picked
    207 	 */
    208 	switch (pp->hand[Card_no]) {
    209 	  default:
    210 		if (!haspicked(pp))
    211 mustpick:
    212 			return error("must pick first");
    213 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    214 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    215 		break;
    216 	}
    217 
    218 	card = pp->hand[Card_no];
    219 #ifdef DEBUG
    220 	if (Debug)
    221 		fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
    222 #endif
    223 	Next = FALSE;
    224 	switch (card) {
    225 	  case C_200:
    226 		if (pp->nummiles[C_200] == 2)
    227 			return error("only two 200's per hand");
    228 	  case C_100:	case C_75:
    229 		if (pp->speed == C_LIMIT)
    230 			return error("limit of 50");
    231 	  case C_50:
    232 		if (pp->mileage + Value[card] > End)
    233 			return error("puts you over %d", End);
    234 	  case C_25:
    235 		if (!pp->can_go)
    236 			return error("cannot move now");
    237 		pp->nummiles[card]++;
    238 		v = Value[card];
    239 		pp->total += v;
    240 		pp->hand_tot += v;
    241 		if ((pp->mileage += v) == End)
    242 			check_ext(FALSE);
    243 		break;
    244 
    245 	  case C_GAS:	case C_SPARE:	case C_REPAIRS:
    246 		if (pp->battle != opposite(card))
    247 			return error("can't play \"%s\"", C_name[card]);
    248 		pp->battle = card;
    249 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    250 			pp->can_go = TRUE;
    251 		break;
    252 
    253 	  case C_GO:
    254 		if (pp->battle != C_INIT && pp->battle != C_STOP
    255 		    && !isrepair(pp->battle))
    256 			return error("cannot play \"Go\" on a \"%s\"",
    257 			    C_name[pp->battle]);
    258 		pp->battle = C_GO;
    259 		pp->can_go = TRUE;
    260 		break;
    261 
    262 	  case C_END_LIMIT:
    263 		if (pp->speed != C_LIMIT)
    264 			return error("not limited");
    265 		pp->speed = C_END_LIMIT;
    266 		break;
    267 
    268 	  case C_EMPTY:	case C_FLAT:	case C_CRASH:
    269 	  case C_STOP:
    270 		pp = &Player[other(Play)];
    271 		if (!pp->can_go)
    272 			return error("opponent cannot go");
    273 		else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
    274 protected:
    275 			return error("opponent is protected");
    276 		pp->battle = card;
    277 		pp->new_battle = TRUE;
    278 		pp->can_go = FALSE;
    279 		pp = &Player[Play];
    280 		break;
    281 
    282 	  case C_LIMIT:
    283 		pp = &Player[other(Play)];
    284 		if (pp->speed == C_LIMIT)
    285 			return error("opponent has limit");
    286 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    287 			goto protected;
    288 		pp->speed = C_LIMIT;
    289 		pp->new_speed = TRUE;
    290 		pp = &Player[Play];
    291 		break;
    292 
    293 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    294 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    295 		if (pp->battle == opposite(card)
    296 		    || (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
    297 			if (!(card == C_RIGHT_WAY && !isrepair(pp->battle))) {
    298 				pp->battle = C_GO;
    299 				pp->can_go = TRUE;
    300 			}
    301 			if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
    302 				pp->speed = C_INIT;
    303 			if (pp->new_battle
    304 			    || (pp->new_speed && card == C_RIGHT_WAY)) {
    305 				pp->coups[card - S_CONV] = TRUE;
    306 				pp->total += SC_COUP;
    307 				pp->hand_tot += SC_COUP;
    308 				pp->coupscore += SC_COUP;
    309 			}
    310 		}
    311 		/*
    312 		 * if not coup, must pick first
    313 		 */
    314 		else if (pp->hand[0] == C_INIT && Topcard > Deck)
    315 			goto mustpick;
    316 		pp->safety[card - S_CONV] = S_PLAYED;
    317 		pp->total += SC_SAFETY;
    318 		pp->hand_tot += SC_SAFETY;
    319 		if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
    320 			pp->total += SC_ALL_SAFE;
    321 			pp->hand_tot += SC_ALL_SAFE;
    322 		}
    323 		if (card == C_RIGHT_WAY) {
    324 			if (pp->speed == C_LIMIT)
    325 				pp->speed = C_INIT;
    326 			if (pp->battle == C_STOP || pp->battle == C_INIT) {
    327 				pp->can_go = TRUE;
    328 				pp->battle = C_INIT;
    329 			}
    330 			if (!pp->can_go && isrepair(pp->battle))
    331 				pp->can_go = TRUE;
    332 		}
    333 		Next = -1;
    334 		break;
    335 
    336 	  case C_INIT:
    337 		error("no card there");
    338 		Next = -1;
    339 		break;
    340 	}
    341 	if (pp == &Player[PLAYER])
    342 		account(card);
    343 	pp->hand[Card_no] = C_INIT;
    344 	Next = (Next == (bool)-1 ? FALSE : TRUE);
    345 	return TRUE;
    346 }
    347 
    348 getmove()
    349 {
    350 	register char	c, *sp;
    351 #ifdef EXTRAP
    352 	static bool	last_ex = FALSE;	/* set if last command was E */
    353 
    354 	if (last_ex) {
    355 		undoex();
    356 		prboard();
    357 		last_ex = FALSE;
    358 	}
    359 #endif
    360 	for (;;) {
    361 		prompt(MOVEPROMPT);
    362 		leaveok(Board, FALSE);
    363 		refresh();
    364 		while ((c = readch()) == killchar() || c == erasechar())
    365 			continue;
    366 		if (islower(c))
    367 			c = toupper(c);
    368 		if (isprint(c) && !isspace(c)) {
    369 			addch(c);
    370 			refresh();
    371 		}
    372 		switch (c) {
    373 		  case 'P':		/* Pick */
    374 			Movetype = M_DRAW;
    375 			goto ret;
    376 		  case 'U':		/* Use Card */
    377 		  case 'D':		/* Discard Card */
    378 			if ((Card_no = getcard()) < 0)
    379 				break;
    380 			Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
    381 			goto ret;
    382 		  case 'O':		/* Order */
    383 			Order = !Order;
    384 			if (Window == W_SMALL) {
    385 				if (!Order)
    386 					mvwaddstr(Score, 12, 21,
    387 						  "o: order hand");
    388 				else
    389 					mvwaddstr(Score, 12, 21,
    390 						  "o: stop ordering");
    391 				wclrtoeol(Score);
    392 			}
    393 			Movetype = M_ORDER;
    394 			goto ret;
    395 		  case 'Q':		/* Quit */
    396 			rub();		/* Same as a rubout */
    397 			break;
    398 		  case 'W':		/* Window toggle */
    399 			Window = nextwin(Window);
    400 			newscore();
    401 			prscore(TRUE);
    402 			wrefresh(Score);
    403 			break;
    404 		  case 'R':		/* Redraw screen */
    405 		  case CTRL('L'):
    406 			wrefresh(curscr);
    407 			break;
    408 		  case 'S':		/* Save game */
    409 			On_exit = FALSE;
    410 			save();
    411 			break;
    412 		  case 'E':		/* Extrapolate */
    413 #ifdef EXTRAP
    414 			if (last_ex)
    415 				break;
    416 			Finished = TRUE;
    417 			if (Window != W_FULL)
    418 				newscore();
    419 			prscore(FALSE);
    420 			wrefresh(Score);
    421 			last_ex = TRUE;
    422 			Finished = FALSE;
    423 #else
    424 			error("%c: command not implemented", c);
    425 #endif
    426 			break;
    427 		  case '\r':		/* Ignore RETURNs and	*/
    428 		  case '\n':		/* Line Feeds		*/
    429 		  case ' ':		/* Spaces		*/
    430 		  case '\0':		/* and nulls		*/
    431 			break;
    432 #ifdef DEBUG
    433 		  case 'Z':		/* Debug code */
    434 			if (!Debug && outf == NULL) {
    435 				char	buf[MAXPATHLEN];
    436 
    437 				prompt(FILEPROMPT);
    438 				leaveok(Board, FALSE);
    439 				refresh();
    440 				sp = buf;
    441 				while ((*sp = readch()) != '\n') {
    442 					if (*sp == killchar())
    443 						goto over;
    444 					else if (*sp == erasechar()) {
    445 						if (--sp < buf)
    446 							sp = buf;
    447 						else {
    448 							addch('\b');
    449 							if (*sp < ' ')
    450 							    addch('\b');
    451 							clrtoeol();
    452 						}
    453 					}
    454 					else
    455 						addstr(unctrl(*sp++));
    456 					refresh();
    457 				}
    458 				*sp = '\0';
    459 				leaveok(Board, TRUE);
    460 				if ((outf = fopen(buf, "w")) == NULL)
    461 					perror(buf);
    462 				setbuf(outf, (char *)NULL);
    463 			}
    464 			Debug = !Debug;
    465 			break;
    466 #endif
    467 		  default:
    468 			error("unknown command: %s", unctrl(c));
    469 			break;
    470 		}
    471 	}
    472 ret:
    473 	leaveok(Board, TRUE);
    474 }
    475 /*
    476  * return whether or not the player has picked
    477  */
    478 haspicked(pp)
    479 register PLAY	*pp;
    480 {
    481 	register int	card;
    482 
    483 	if (Topcard <= Deck)
    484 		return TRUE;
    485 	switch (pp->hand[Card_no]) {
    486 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    487 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    488 		card = 1;
    489 		break;
    490 	  default:
    491 		card = 0;
    492 		break;
    493 	}
    494 	return (pp->hand[card] != C_INIT);
    495 }
    496 
    497 account(card)
    498 register CARD	card;
    499 {
    500 	register CARD	oppos;
    501 
    502 	if (card == C_INIT)
    503 		return;
    504 	++Numseen[card];
    505 	if (Play == COMP)
    506 		switch (card) {
    507 		  case C_GAS_SAFE:
    508 		  case C_SPARE_SAFE:
    509 		  case C_DRIVE_SAFE:
    510 			oppos = opposite(card);
    511 			Numgos += Numcards[oppos] - Numseen[oppos];
    512 			break;
    513 		  case C_CRASH:
    514 		  case C_FLAT:
    515 		  case C_EMPTY:
    516 		  case C_STOP:
    517 			Numgos++;
    518 			break;
    519 		}
    520 }
    521 
    522 prompt(promptno)
    523 int	promptno;
    524 {
    525 	static char	*names[] = {
    526 				">>:Move:",
    527 				"Really?",
    528 				"Another hand?",
    529 				"Another game?",
    530 				"Save game?",
    531 				"Same file?",
    532 				"file:",
    533 				"Extension?",
    534 				"Overwrite file?",
    535 			};
    536 	static int	last_prompt = -1;
    537 
    538 	if (promptno == last_prompt)
    539 		move(MOVE_Y, MOVE_X + strlen(names[promptno]) + 1);
    540 	else {
    541 		move(MOVE_Y, MOVE_X);
    542 		if (promptno == MOVEPROMPT)
    543 			standout();
    544 		addstr(names[promptno]);
    545 		if (promptno == MOVEPROMPT)
    546 			standend();
    547 		addch(' ');
    548 		last_prompt = promptno;
    549 	}
    550 	clrtoeol();
    551 }
    552 
    553 sort(hand)
    554 register CARD	*hand;
    555 {
    556 	register CARD	*cp, *tp;
    557 	register CARD	temp;
    558 
    559 	cp = hand;
    560 	hand += HAND_SZ;
    561 	for ( ; cp < &hand[-1]; cp++)
    562 		for (tp = cp + 1; tp < hand; tp++)
    563 			if (*cp > *tp) {
    564 				temp = *cp;
    565 				*cp = *tp;
    566 				*tp = temp;
    567 			}
    568 }
    569 
    570