Home | History | Annotate | Line # | Download | only in mille
move.c revision 1.10
      1 /*	$NetBSD: move.c,v 1.10 1999/09/08 21:17:51 jsm 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 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)move.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: move.c,v 1.10 1999/09/08 21:17:51 jsm Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <termios.h>
     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 	if (Play == PLAYER)
     68 		getmove();
     69 	else
     70 		calcmove();
     71 	Next = FALSE;
     72 	goodplay = TRUE;
     73 	switch (Movetype) {
     74 	  case M_DISCARD:
     75 		if (haspicked(pp)) {
     76 			if (pp->hand[Card_no] == C_INIT)
     77 				if (Card_no == 6)
     78 					Finished = TRUE;
     79 				else
     80 					error("no card there");
     81 			else {
     82 				if (issafety(pp->hand[Card_no])) {
     83 					error("discard a safety?");
     84 					goodplay = FALSE;
     85 					break;
     86 				}
     87 				Discard = pp->hand[Card_no];
     88 				pp->hand[Card_no] = C_INIT;
     89 				Next = TRUE;
     90 				if (Play == PLAYER)
     91 					account(Discard);
     92 			}
     93 		}
     94 		else
     95 			error("must pick first");
     96 		break;
     97 	  case M_PLAY:
     98 		goodplay = playcard(pp);
     99 		break;
    100 	  case M_DRAW:
    101 		Card_no = 0;
    102 		if (Topcard <= Deck)
    103 			error("no more cards");
    104 		else if (haspicked(pp))
    105 			error("already picked");
    106 		else {
    107 			pp->hand[0] = *--Topcard;
    108 #ifdef DEBUG
    109 			if (Debug)
    110 				fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
    111 #endif
    112 acc:
    113 			if (Play == COMP) {
    114 				account(*Topcard);
    115 				if (issafety(*Topcard))
    116 					pp->safety[*Topcard-S_CONV] = S_IN_HAND;
    117 			}
    118 			if (pp->hand[1] == C_INIT && Topcard > Deck) {
    119 				Card_no = 1;
    120 				pp->hand[1] = *--Topcard;
    121 #ifdef DEBUG
    122 				if (Debug)
    123 					fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
    124 #endif
    125 				goto acc;
    126 			}
    127 			pp->new_battle = FALSE;
    128 			pp->new_speed = FALSE;
    129 		}
    130 		break;
    131 
    132 	  case M_ORDER:
    133 		break;
    134 	}
    135 	/*
    136 	 * move blank card to top by one of two methods.  If the
    137 	 * computer's hand was sorted, the randomness for picking
    138 	 * between equally valued cards would be lost
    139 	 */
    140 	if (Order && Movetype != M_DRAW && goodplay && pp == &Player[PLAYER])
    141 		sort(pp->hand);
    142 	else
    143 		for (i = 1; i < HAND_SZ; i++)
    144 			if (pp->hand[i] == C_INIT) {
    145 				for (j = 0; pp->hand[j] == C_INIT; j++)
    146 					if (j >= HAND_SZ) {
    147 						j = 0;
    148 						break;
    149 					}
    150 				pp->hand[i] = pp->hand[j];
    151 				pp->hand[j] = C_INIT;
    152 			}
    153 	if (Topcard <= Deck)
    154 		check_go();
    155 	if (Next)
    156 		nextplay();
    157 }
    158 
    159 /*
    160  *	Check and see if either side can go.  If they cannot,
    161  * the game is over
    162  */
    163 void
    164 check_go()
    165 {
    166 	CARD	card;
    167 	PLAY	*pp, *op;
    168 	int	i;
    169 
    170 	for (pp = Player; pp < &Player[2]; pp++) {
    171 		op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
    172 		for (i = 0; i < HAND_SZ; i++) {
    173 			card = pp->hand[i];
    174 			if (issafety(card) || canplay(pp, op, card)) {
    175 #ifdef DEBUG
    176 				if (Debug) {
    177 					fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
    178 					fprintf(outf, "issafety(card) = %d, ", issafety(card));
    179 					fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
    180 				}
    181 #endif
    182 				return;
    183 			}
    184 #ifdef DEBUG
    185 			else if (Debug)
    186 				fprintf(outf, "CHECK_GO: cannot play %s\n",
    187 				    C_name[card]);
    188 #endif
    189 		}
    190 	}
    191 	Finished = TRUE;
    192 }
    193 
    194 int
    195 playcard(pp)
    196 	PLAY	*pp;
    197 {
    198 	int	v;
    199 	CARD	card;
    200 
    201 	/*
    202 	 * check and see if player has picked
    203 	 */
    204 	switch (pp->hand[Card_no]) {
    205 	  default:
    206 		if (!haspicked(pp))
    207 mustpick:
    208 			return error("must pick first");
    209 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    210 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    211 		break;
    212 	}
    213 
    214 	card = pp->hand[Card_no];
    215 #ifdef DEBUG
    216 	if (Debug)
    217 		fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
    218 #endif
    219 	Next = FALSE;
    220 	switch (card) {
    221 	  case C_200:
    222 		if (pp->nummiles[C_200] == 2)
    223 			return error("only two 200's per hand");
    224 	  case C_100:	case C_75:
    225 		if (pp->speed == C_LIMIT)
    226 			return error("limit of 50");
    227 	  case C_50:
    228 		if (pp->mileage + Value[card] > End)
    229 			return error("puts you over %d", End);
    230 	  case C_25:
    231 		if (!pp->can_go)
    232 			return error("cannot move now");
    233 		pp->nummiles[card]++;
    234 		v = Value[card];
    235 		pp->total += v;
    236 		pp->hand_tot += v;
    237 		if ((pp->mileage += v) == End)
    238 			check_ext(FALSE);
    239 		break;
    240 
    241 	  case C_GAS:	case C_SPARE:	case C_REPAIRS:
    242 		if (pp->battle != opposite(card))
    243 			return error("can't play \"%s\"", C_name[card]);
    244 		pp->battle = card;
    245 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    246 			pp->can_go = TRUE;
    247 		break;
    248 
    249 	  case C_GO:
    250 		if (pp->battle != C_INIT && pp->battle != C_STOP
    251 		    && !isrepair(pp->battle))
    252 			return error("cannot play \"Go\" on a \"%s\"",
    253 			    C_name[pp->battle]);
    254 		pp->battle = C_GO;
    255 		pp->can_go = TRUE;
    256 		break;
    257 
    258 	  case C_END_LIMIT:
    259 		if (pp->speed != C_LIMIT)
    260 			return error("not limited");
    261 		pp->speed = C_END_LIMIT;
    262 		break;
    263 
    264 	  case C_EMPTY:	case C_FLAT:	case C_CRASH:
    265 	  case C_STOP:
    266 		pp = &Player[other(Play)];
    267 		if (!pp->can_go)
    268 			return error("opponent cannot go");
    269 		else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
    270 protected:
    271 			return error("opponent is protected");
    272 		pp->battle = card;
    273 		pp->new_battle = TRUE;
    274 		pp->can_go = FALSE;
    275 		pp = &Player[Play];
    276 		break;
    277 
    278 	  case C_LIMIT:
    279 		pp = &Player[other(Play)];
    280 		if (pp->speed == C_LIMIT)
    281 			return error("opponent has limit");
    282 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    283 			goto protected;
    284 		pp->speed = C_LIMIT;
    285 		pp->new_speed = TRUE;
    286 		pp = &Player[Play];
    287 		break;
    288 
    289 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    290 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    291 		if (pp->battle == opposite(card)
    292 		    || (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
    293 			if (!(card == C_RIGHT_WAY && !isrepair(pp->battle))) {
    294 				pp->battle = C_GO;
    295 				pp->can_go = TRUE;
    296 			}
    297 			if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
    298 				pp->speed = C_INIT;
    299 			if (pp->new_battle
    300 			    || (pp->new_speed && card == C_RIGHT_WAY)) {
    301 				pp->coups[card - S_CONV] = TRUE;
    302 				pp->total += SC_COUP;
    303 				pp->hand_tot += SC_COUP;
    304 				pp->coupscore += SC_COUP;
    305 			}
    306 		}
    307 		/*
    308 		 * if not coup, must pick first
    309 		 */
    310 		else if (pp->hand[0] == C_INIT && Topcard > Deck)
    311 			goto mustpick;
    312 		pp->safety[card - S_CONV] = S_PLAYED;
    313 		pp->total += SC_SAFETY;
    314 		pp->hand_tot += SC_SAFETY;
    315 		if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
    316 			pp->total += SC_ALL_SAFE;
    317 			pp->hand_tot += SC_ALL_SAFE;
    318 		}
    319 		if (card == C_RIGHT_WAY) {
    320 			if (pp->speed == C_LIMIT)
    321 				pp->speed = C_INIT;
    322 			if (pp->battle == C_STOP || pp->battle == C_INIT) {
    323 				pp->can_go = TRUE;
    324 				pp->battle = C_INIT;
    325 			}
    326 			if (!pp->can_go && isrepair(pp->battle))
    327 				pp->can_go = TRUE;
    328 		}
    329 		Next = -1;
    330 		break;
    331 
    332 	  case C_INIT:
    333 		error("no card there");
    334 		Next = -1;
    335 		break;
    336 	}
    337 	if (pp == &Player[PLAYER])
    338 		account(card);
    339 	pp->hand[Card_no] = C_INIT;
    340 	Next = (Next == (bool)-1 ? FALSE : TRUE);
    341 	return TRUE;
    342 }
    343 
    344 void
    345 getmove()
    346 {
    347 	char	c;
    348 #ifdef EXTRAP
    349 	static bool	last_ex = FALSE;	/* set if last command was E */
    350 
    351 	if (last_ex) {
    352 		undoex();
    353 		prboard();
    354 		last_ex = FALSE;
    355 	}
    356 #endif
    357 	for (;;) {
    358 		prompt(MOVEPROMPT);
    359 		leaveok(Board, FALSE);
    360 		refresh();
    361 		while ((c = readch()) == killchar() || c == erasechar())
    362 			continue;
    363 		if (islower(c))
    364 			c = toupper(c);
    365 		if (isprint(c) && !isspace(c)) {
    366 			addch(c);
    367 			refresh();
    368 		}
    369 		switch (c) {
    370 		  case 'P':		/* Pick */
    371 			Movetype = M_DRAW;
    372 			goto ret;
    373 		  case 'U':		/* Use Card */
    374 		  case 'D':		/* Discard Card */
    375 			if ((Card_no = getcard()) < 0)
    376 				break;
    377 			Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
    378 			goto ret;
    379 		  case 'O':		/* Order */
    380 			Order = !Order;
    381 			if (Window == W_SMALL) {
    382 				if (!Order)
    383 					mvwaddstr(Score, 12, 21,
    384 						  "o: order hand");
    385 				else
    386 					mvwaddstr(Score, 12, 21,
    387 						  "o: stop ordering");
    388 				wclrtoeol(Score);
    389 			}
    390 			Movetype = M_ORDER;
    391 			goto ret;
    392 		  case 'Q':		/* Quit */
    393 			rub(0);		/* Same as a rubout */
    394 			break;
    395 		  case 'W':		/* Window toggle */
    396 			Window = nextwin(Window);
    397 			newscore();
    398 			prscore(TRUE);
    399 			wrefresh(Score);
    400 			break;
    401 		  case 'R':		/* Redraw screen */
    402 		  case CTRL('L'):
    403 			wrefresh(curscr);
    404 			break;
    405 		  case 'S':		/* Save game */
    406 			On_exit = FALSE;
    407 			save();
    408 			break;
    409 		  case 'E':		/* Extrapolate */
    410 #ifdef EXTRAP
    411 			if (last_ex)
    412 				break;
    413 			Finished = TRUE;
    414 			if (Window != W_FULL)
    415 				newscore();
    416 			prscore(FALSE);
    417 			wrefresh(Score);
    418 			last_ex = TRUE;
    419 			Finished = FALSE;
    420 #else
    421 			error("%c: command not implemented", c);
    422 #endif
    423 			break;
    424 		  case '\r':		/* Ignore RETURNs and	*/
    425 		  case '\n':		/* Line Feeds		*/
    426 		  case ' ':		/* Spaces		*/
    427 		  case '\0':		/* and nulls		*/
    428 			break;
    429 #ifdef DEBUG
    430 		  case 'Z':		/* Debug code */
    431 			if (!Debug && outf == NULL) {
    432 				char	buf[MAXPATHLEN];
    433 
    434 				prompt(FILEPROMPT);
    435 				leaveok(Board, FALSE);
    436 				refresh();
    437 				sp = buf;
    438 				while ((*sp = readch()) != '\n') {
    439 					if (*sp == killchar())
    440 						goto over;
    441 					else if (*sp == erasechar()) {
    442 						if (--sp < buf)
    443 							sp = buf;
    444 						else {
    445 							addch('\b');
    446 							if (*sp < ' ')
    447 							    addch('\b');
    448 							clrtoeol();
    449 						}
    450 					}
    451 					else
    452 						addstr(unctrl(*sp++));
    453 					refresh();
    454 				}
    455 				*sp = '\0';
    456 				leaveok(Board, TRUE);
    457 				if ((outf = fopen(buf, "w")) == NULL)
    458 					warn("%s", buf);
    459 				setbuf(outf, (char *)NULL);
    460 			}
    461 			Debug = !Debug;
    462 			break;
    463 #endif
    464 		  default:
    465 			error("unknown command: %s", unctrl(c));
    466 			break;
    467 		}
    468 	}
    469 ret:
    470 	leaveok(Board, TRUE);
    471 }
    472 
    473 /*
    474  * return whether or not the player has picked
    475  */
    476 int
    477 haspicked(pp)
    478 	const PLAY	*pp;
    479 {
    480 	int	card;
    481 
    482 	if (Topcard <= Deck)
    483 		return TRUE;
    484 	switch (pp->hand[Card_no]) {
    485 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    486 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    487 		card = 1;
    488 		break;
    489 	  default:
    490 		card = 0;
    491 		break;
    492 	}
    493 	return (pp->hand[card] != C_INIT);
    494 }
    495 
    496 void
    497 account(card)
    498 	CARD	card;
    499 {
    500 	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 void
    523 prompt(promptno)
    524 	int	promptno;
    525 {
    526 	static const char	*const names[] = {
    527 				">>:Move:",
    528 				"Really?",
    529 				"Another hand?",
    530 				"Another game?",
    531 				"Save game?",
    532 				"Same file?",
    533 				"file:",
    534 				"Extension?",
    535 				"Overwrite file?",
    536 			};
    537 	static int	last_prompt = -1;
    538 
    539 	if (promptno == last_prompt)
    540 		move(MOVE_Y, MOVE_X + strlen(names[promptno]) + 1);
    541 	else {
    542 		move(MOVE_Y, MOVE_X);
    543 		if (promptno == MOVEPROMPT)
    544 			standout();
    545 		addstr(names[promptno]);
    546 		if (promptno == MOVEPROMPT)
    547 			standend();
    548 		addch(' ');
    549 		last_prompt = promptno;
    550 	}
    551 	clrtoeol();
    552 }
    553 
    554 void
    555 sort(hand)
    556 	CARD	*hand;
    557 {
    558 	CARD	*cp, *tp;
    559 	CARD	temp;
    560 
    561 	cp = hand;
    562 	hand += HAND_SZ;
    563 	for ( ; cp < &hand[-1]; cp++)
    564 		for (tp = cp + 1; tp < hand; tp++)
    565 			if (*cp > *tp) {
    566 				temp = *cp;
    567 				*cp = *tp;
    568 				*tp = temp;
    569 			}
    570 }
    571