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move.c revision 1.5
      1 /*	$NetBSD: move.c,v 1.5 1997/03/29 20:42:21 thorpej 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 1.5 1997/03/29 20:42:21 thorpej 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 #	define	_tty	cur_term->Nttyb
     54 # endif	attron
     55 
     56 /*
     57  * @(#)move.c	1.2 (Berkeley) 3/28/83
     58  */
     59 
     60 #undef	CTRL
     61 #define	CTRL(c)		(c - 'A' + 1)
     62 
     63 char	*Movenames[] = {
     64 		"M_DISCARD", "M_DRAW", "M_PLAY", "M_ORDER"
     65 	};
     66 
     67 domove()
     68 {
     69 	reg PLAY	*pp;
     70 	reg int		i, j;
     71 	reg bool	goodplay;
     72 
     73 	pp = &Player[Play];
     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 (issafety(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 (issafety(*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 check_go() {
    171 
    172 	reg CARD	card;
    173 	reg PLAY	*pp, *op;
    174 	reg int		i;
    175 
    176 	for (pp = Player; pp < &Player[2]; pp++) {
    177 		op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
    178 		for (i = 0; i < HAND_SZ; i++) {
    179 			card = pp->hand[i];
    180 			if (issafety(card) || canplay(pp, op, card)) {
    181 #ifdef DEBUG
    182 				if (Debug) {
    183 					fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
    184 					fprintf(outf, "issafety(card) = %d, ", issafety(card));
    185 					fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
    186 				}
    187 #endif
    188 				return;
    189 			}
    190 #ifdef DEBUG
    191 			else if (Debug)
    192 				fprintf(outf, "CHECK_GO: cannot play %s\n",
    193 				    C_name[card]);
    194 #endif
    195 		}
    196 	}
    197 	Finished = TRUE;
    198 }
    199 
    200 playcard(pp)
    201 reg PLAY	*pp;
    202 {
    203 	reg int		v;
    204 	reg CARD	card;
    205 
    206 	/*
    207 	 * check and see if player has picked
    208 	 */
    209 	switch (pp->hand[Card_no]) {
    210 	  default:
    211 		if (!haspicked(pp))
    212 mustpick:
    213 			return error("must pick first");
    214 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    215 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    216 		break;
    217 	}
    218 
    219 	card = pp->hand[Card_no];
    220 #ifdef DEBUG
    221 	if (Debug)
    222 		fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
    223 #endif
    224 	Next = FALSE;
    225 	switch (card) {
    226 	  case C_200:
    227 		if (pp->nummiles[C_200] == 2)
    228 			return error("only two 200's per hand");
    229 	  case C_100:	case C_75:
    230 		if (pp->speed == C_LIMIT)
    231 			return error("limit of 50");
    232 	  case C_50:
    233 		if (pp->mileage + Value[card] > End)
    234 			return error("puts you over %d", End);
    235 	  case C_25:
    236 		if (!pp->can_go)
    237 			return error("cannot move now");
    238 		pp->nummiles[card]++;
    239 		v = Value[card];
    240 		pp->total += v;
    241 		pp->hand_tot += v;
    242 		if ((pp->mileage += v) == End)
    243 			check_ext(FALSE);
    244 		break;
    245 
    246 	  case C_GAS:	case C_SPARE:	case C_REPAIRS:
    247 		if (pp->battle != opposite(card))
    248 			return error("can't play \"%s\"", C_name[card]);
    249 		pp->battle = card;
    250 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    251 			pp->can_go = TRUE;
    252 		break;
    253 
    254 	  case C_GO:
    255 		if (pp->battle != C_INIT && pp->battle != C_STOP
    256 		    && !isrepair(pp->battle))
    257 			return error("cannot play \"Go\" on a \"%s\"",
    258 			    C_name[pp->battle]);
    259 		pp->battle = C_GO;
    260 		pp->can_go = TRUE;
    261 		break;
    262 
    263 	  case C_END_LIMIT:
    264 		if (pp->speed != C_LIMIT)
    265 			return error("not limited");
    266 		pp->speed = C_END_LIMIT;
    267 		break;
    268 
    269 	  case C_EMPTY:	case C_FLAT:	case C_CRASH:
    270 	  case C_STOP:
    271 		pp = &Player[other(Play)];
    272 		if (!pp->can_go)
    273 			return error("opponent cannot go");
    274 		else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
    275 protected:
    276 			return error("opponent is protected");
    277 		pp->battle = card;
    278 		pp->new_battle = TRUE;
    279 		pp->can_go = FALSE;
    280 		pp = &Player[Play];
    281 		break;
    282 
    283 	  case C_LIMIT:
    284 		pp = &Player[other(Play)];
    285 		if (pp->speed == C_LIMIT)
    286 			return error("opponent has limit");
    287 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    288 			goto protected;
    289 		pp->speed = C_LIMIT;
    290 		pp->new_speed = TRUE;
    291 		pp = &Player[Play];
    292 		break;
    293 
    294 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    295 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    296 		if (pp->battle == opposite(card)
    297 		    || (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
    298 			if (!(card == C_RIGHT_WAY && !isrepair(pp->battle))) {
    299 				pp->battle = C_GO;
    300 				pp->can_go = TRUE;
    301 			}
    302 			if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
    303 				pp->speed = C_INIT;
    304 			if (pp->new_battle
    305 			    || (pp->new_speed && card == C_RIGHT_WAY)) {
    306 				pp->coups[card - S_CONV] = TRUE;
    307 				pp->total += SC_COUP;
    308 				pp->hand_tot += SC_COUP;
    309 				pp->coupscore += SC_COUP;
    310 			}
    311 		}
    312 		/*
    313 		 * if not coup, must pick first
    314 		 */
    315 		else if (pp->hand[0] == C_INIT && Topcard > Deck)
    316 			goto mustpick;
    317 		pp->safety[card - S_CONV] = S_PLAYED;
    318 		pp->total += SC_SAFETY;
    319 		pp->hand_tot += SC_SAFETY;
    320 		if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
    321 			pp->total += SC_ALL_SAFE;
    322 			pp->hand_tot += SC_ALL_SAFE;
    323 		}
    324 		if (card == C_RIGHT_WAY) {
    325 			if (pp->speed == C_LIMIT)
    326 				pp->speed = C_INIT;
    327 			if (pp->battle == C_STOP || pp->battle == C_INIT) {
    328 				pp->can_go = TRUE;
    329 				pp->battle = C_INIT;
    330 			}
    331 			if (!pp->can_go && isrepair(pp->battle))
    332 				pp->can_go = TRUE;
    333 		}
    334 		Next = -1;
    335 		break;
    336 
    337 	  case C_INIT:
    338 		error("no card there");
    339 		Next = -1;
    340 		break;
    341 	}
    342 	if (pp == &Player[PLAYER])
    343 		account(card);
    344 	pp->hand[Card_no] = C_INIT;
    345 	Next = (Next == (bool)-1 ? FALSE : TRUE);
    346 	return TRUE;
    347 }
    348 
    349 getmove()
    350 {
    351 	reg char	c, *sp;
    352 #ifdef EXTRAP
    353 	static bool	last_ex = FALSE;	/* set if last command was E */
    354 
    355 	if (last_ex) {
    356 		undoex();
    357 		prboard();
    358 		last_ex = FALSE;
    359 	}
    360 #endif
    361 	for (;;) {
    362 		prompt(MOVEPROMPT);
    363 		leaveok(Board, FALSE);
    364 		refresh();
    365 		while ((c = readch()) == killchar() || c == erasechar())
    366 			continue;
    367 		if (islower(c))
    368 			c = toupper(c);
    369 		if (isprint(c) && !isspace(c)) {
    370 			addch(c);
    371 			refresh();
    372 		}
    373 		switch (c) {
    374 		  case 'P':		/* Pick */
    375 			Movetype = M_DRAW;
    376 			goto ret;
    377 		  case 'U':		/* Use Card */
    378 		  case 'D':		/* Discard Card */
    379 			if ((Card_no = getcard()) < 0)
    380 				break;
    381 			Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
    382 			goto ret;
    383 		  case 'O':		/* Order */
    384 			Order = !Order;
    385 			if (Window == W_SMALL) {
    386 				if (!Order)
    387 					mvwaddstr(Score, 12, 21,
    388 						  "o: order hand");
    389 				else
    390 					mvwaddstr(Score, 12, 21,
    391 						  "o: stop ordering");
    392 				wclrtoeol(Score);
    393 			}
    394 			Movetype = M_ORDER;
    395 			goto ret;
    396 		  case 'Q':		/* Quit */
    397 			rub();		/* Same as a rubout */
    398 			break;
    399 		  case 'W':		/* Window toggle */
    400 			Window = nextwin(Window);
    401 			newscore();
    402 			prscore(TRUE);
    403 			wrefresh(Score);
    404 			break;
    405 		  case 'R':		/* Redraw screen */
    406 		  case CTRL('L'):
    407 			wrefresh(curscr);
    408 			break;
    409 		  case 'S':		/* Save game */
    410 			On_exit = FALSE;
    411 			save();
    412 			break;
    413 		  case 'E':		/* Extrapolate */
    414 #ifdef EXTRAP
    415 			if (last_ex)
    416 				break;
    417 			Finished = TRUE;
    418 			if (Window != W_FULL)
    419 				newscore();
    420 			prscore(FALSE);
    421 			wrefresh(Score);
    422 			last_ex = TRUE;
    423 			Finished = FALSE;
    424 #else
    425 			error("%c: command not implemented", c);
    426 #endif
    427 			break;
    428 		  case '\r':		/* Ignore RETURNs and	*/
    429 		  case '\n':		/* Line Feeds		*/
    430 		  case ' ':		/* Spaces		*/
    431 		  case '\0':		/* and nulls		*/
    432 			break;
    433 #ifdef DEBUG
    434 		  case 'Z':		/* Debug code */
    435 			if (!Debug && outf == NULL) {
    436 				char	buf[MAXPATHLEN];
    437 
    438 				prompt(FILEPROMPT);
    439 				leaveok(Board, FALSE);
    440 				refresh();
    441 				sp = buf;
    442 				while ((*sp = readch()) != '\n') {
    443 					if (*sp == killchar())
    444 						goto over;
    445 					else if (*sp == erasechar()) {
    446 						if (--sp < buf)
    447 							sp = buf;
    448 						else {
    449 							addch('\b');
    450 							if (*sp < ' ')
    451 							    addch('\b');
    452 							clrtoeol();
    453 						}
    454 					}
    455 					else
    456 						addstr(unctrl(*sp++));
    457 					refresh();
    458 				}
    459 				*sp = '\0';
    460 				leaveok(Board, TRUE);
    461 				if ((outf = fopen(buf, "w")) == NULL)
    462 					perror(buf);
    463 				setbuf(outf, (char *)NULL);
    464 			}
    465 			Debug = !Debug;
    466 			break;
    467 #endif
    468 		  default:
    469 			error("unknown command: %s", unctrl(c));
    470 			break;
    471 		}
    472 	}
    473 ret:
    474 	leaveok(Board, TRUE);
    475 }
    476 /*
    477  * return whether or not the player has picked
    478  */
    479 haspicked(pp)
    480 reg PLAY	*pp; {
    481 
    482 	reg int	card;
    483 
    484 	if (Topcard <= Deck)
    485 		return TRUE;
    486 	switch (pp->hand[Card_no]) {
    487 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    488 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    489 		card = 1;
    490 		break;
    491 	  default:
    492 		card = 0;
    493 		break;
    494 	}
    495 	return (pp->hand[card] != C_INIT);
    496 }
    497 
    498 account(card)
    499 reg CARD	card; {
    500 
    501 	reg CARD	oppos;
    502 
    503 	if (card == C_INIT)
    504 		return;
    505 	++Numseen[card];
    506 	if (Play == COMP)
    507 		switch (card) {
    508 		  case C_GAS_SAFE:
    509 		  case C_SPARE_SAFE:
    510 		  case C_DRIVE_SAFE:
    511 			oppos = opposite(card);
    512 			Numgos += Numcards[oppos] - Numseen[oppos];
    513 			break;
    514 		  case C_CRASH:
    515 		  case C_FLAT:
    516 		  case C_EMPTY:
    517 		  case C_STOP:
    518 			Numgos++;
    519 			break;
    520 		}
    521 }
    522 
    523 prompt(promptno)
    524 int	promptno;
    525 {
    526 	static char	*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 sort(hand)
    555 reg CARD	*hand;
    556 {
    557 	reg CARD	*cp, *tp;
    558 	reg CARD	temp;
    559 
    560 	cp = hand;
    561 	hand += HAND_SZ;
    562 	for ( ; cp < &hand[-1]; cp++)
    563 		for (tp = cp + 1; tp < hand; tp++)
    564 			if (*cp > *tp) {
    565 				temp = *cp;
    566 				*cp = *tp;
    567 				*tp = temp;
    568 			}
    569 }
    570 
    571