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move.c revision 1.2
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)move.c	5.4 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: move.c,v 1.2 1993/08/01 18:53:58 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include	"mille.h"
     40 #ifndef	unctrl
     41 #include	"unctrl.h"
     42 #endif
     43 
     44 # ifdef	attron
     45 #	include	<term.h>
     46 #	define	_tty	cur_term->Nttyb
     47 # endif	attron
     48 
     49 /*
     50  * @(#)move.c	1.2 (Berkeley) 3/28/83
     51  */
     52 
     53 #undef	CTRL
     54 #define	CTRL(c)		(c - 'A' + 1)
     55 
     56 char	*Movenames[] = {
     57 		"M_DISCARD", "M_DRAW", "M_PLAY", "M_ORDER"
     58 	};
     59 
     60 domove()
     61 {
     62 	reg PLAY	*pp;
     63 	reg int		i, j;
     64 	reg 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 check_go() {
    164 
    165 	reg CARD	card;
    166 	reg PLAY	*pp, *op;
    167 	reg int		i;
    168 
    169 	for (pp = Player; pp < &Player[2]; pp++) {
    170 		op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
    171 		for (i = 0; i < HAND_SZ; i++) {
    172 			card = pp->hand[i];
    173 			if (issafety(card) || canplay(pp, op, card)) {
    174 #ifdef DEBUG
    175 				if (Debug) {
    176 					fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
    177 					fprintf(outf, "issafety(card) = %d, ", issafety(card));
    178 					fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
    179 				}
    180 #endif
    181 				return;
    182 			}
    183 #ifdef DEBUG
    184 			else if (Debug)
    185 				fprintf(outf, "CHECK_GO: cannot play %s\n",
    186 				    C_name[card]);
    187 #endif
    188 		}
    189 	}
    190 	Finished = TRUE;
    191 }
    192 
    193 playcard(pp)
    194 reg PLAY	*pp;
    195 {
    196 	reg int		v;
    197 	reg CARD	card;
    198 
    199 	/*
    200 	 * check and see if player has picked
    201 	 */
    202 	switch (pp->hand[Card_no]) {
    203 	  default:
    204 		if (!haspicked(pp))
    205 mustpick:
    206 			return error("must pick first");
    207 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    208 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    209 		break;
    210 	}
    211 
    212 	card = pp->hand[Card_no];
    213 #ifdef DEBUG
    214 	if (Debug)
    215 		fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
    216 #endif
    217 	Next = FALSE;
    218 	switch (card) {
    219 	  case C_200:
    220 		if (pp->nummiles[C_200] == 2)
    221 			return error("only two 200's per hand");
    222 	  case C_100:	case C_75:
    223 		if (pp->speed == C_LIMIT)
    224 			return error("limit of 50");
    225 	  case C_50:
    226 		if (pp->mileage + Value[card] > End)
    227 			return error("puts you over %d", End);
    228 	  case C_25:
    229 		if (!pp->can_go)
    230 			return error("cannot move now");
    231 		pp->nummiles[card]++;
    232 		v = Value[card];
    233 		pp->total += v;
    234 		pp->hand_tot += v;
    235 		if ((pp->mileage += v) == End)
    236 			check_ext(FALSE);
    237 		break;
    238 
    239 	  case C_GAS:	case C_SPARE:	case C_REPAIRS:
    240 		if (pp->battle != opposite(card))
    241 			return error("can't play \"%s\"", C_name[card]);
    242 		pp->battle = card;
    243 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    244 			pp->can_go = TRUE;
    245 		break;
    246 
    247 	  case C_GO:
    248 		if (pp->battle != C_INIT && pp->battle != C_STOP
    249 		    && !isrepair(pp->battle))
    250 			return error("cannot play \"Go\" on a \"%s\"",
    251 			    C_name[pp->battle]);
    252 		pp->battle = C_GO;
    253 		pp->can_go = TRUE;
    254 		break;
    255 
    256 	  case C_END_LIMIT:
    257 		if (pp->speed != C_LIMIT)
    258 			return error("not limited");
    259 		pp->speed = C_END_LIMIT;
    260 		break;
    261 
    262 	  case C_EMPTY:	case C_FLAT:	case C_CRASH:
    263 	  case C_STOP:
    264 		pp = &Player[other(Play)];
    265 		if (!pp->can_go)
    266 			return error("opponent cannot go");
    267 		else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
    268 protected:
    269 			return error("opponent is protected");
    270 		pp->battle = card;
    271 		pp->new_battle = TRUE;
    272 		pp->can_go = FALSE;
    273 		pp = &Player[Play];
    274 		break;
    275 
    276 	  case C_LIMIT:
    277 		pp = &Player[other(Play)];
    278 		if (pp->speed == C_LIMIT)
    279 			return error("opponent has limit");
    280 		if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
    281 			goto protected;
    282 		pp->speed = C_LIMIT;
    283 		pp->new_speed = TRUE;
    284 		pp = &Player[Play];
    285 		break;
    286 
    287 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    288 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    289 		if (pp->battle == opposite(card)
    290 		    || (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
    291 			if (!(card == C_RIGHT_WAY && !isrepair(pp->battle))) {
    292 				pp->battle = C_GO;
    293 				pp->can_go = TRUE;
    294 			}
    295 			if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
    296 				pp->speed = C_INIT;
    297 			if (pp->new_battle
    298 			    || (pp->new_speed && card == C_RIGHT_WAY)) {
    299 				pp->coups[card - S_CONV] = TRUE;
    300 				pp->total += SC_COUP;
    301 				pp->hand_tot += SC_COUP;
    302 				pp->coupscore += SC_COUP;
    303 			}
    304 		}
    305 		/*
    306 		 * if not coup, must pick first
    307 		 */
    308 		else if (pp->hand[0] == C_INIT && Topcard > Deck)
    309 			goto mustpick;
    310 		pp->safety[card - S_CONV] = S_PLAYED;
    311 		pp->total += SC_SAFETY;
    312 		pp->hand_tot += SC_SAFETY;
    313 		if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
    314 			pp->total += SC_ALL_SAFE;
    315 			pp->hand_tot += SC_ALL_SAFE;
    316 		}
    317 		if (card == C_RIGHT_WAY) {
    318 			if (pp->speed == C_LIMIT)
    319 				pp->speed = C_INIT;
    320 			if (pp->battle == C_STOP || pp->battle == C_INIT) {
    321 				pp->can_go = TRUE;
    322 				pp->battle = C_INIT;
    323 			}
    324 			if (!pp->can_go && isrepair(pp->battle))
    325 				pp->can_go = TRUE;
    326 		}
    327 		Next = -1;
    328 		break;
    329 
    330 	  case C_INIT:
    331 		error("no card there");
    332 		Next = -1;
    333 		break;
    334 	}
    335 	if (pp == &Player[PLAYER])
    336 		account(card);
    337 	pp->hand[Card_no] = C_INIT;
    338 	Next = (Next == -1 ? FALSE : TRUE);
    339 	return TRUE;
    340 }
    341 
    342 getmove()
    343 {
    344 	reg char	c, *sp;
    345 #ifdef EXTRAP
    346 	static bool	last_ex = FALSE;	/* set if last command was E */
    347 
    348 	if (last_ex) {
    349 		undoex();
    350 		prboard();
    351 		last_ex = FALSE;
    352 	}
    353 #endif
    354 	for (;;) {
    355 		prompt(MOVEPROMPT);
    356 		leaveok(Board, FALSE);
    357 		refresh();
    358 		while ((c = readch()) == killchar() || c == erasechar())
    359 			continue;
    360 		if (islower(c))
    361 			c = toupper(c);
    362 		if (isprint(c) && !isspace(c)) {
    363 			addch(c);
    364 			refresh();
    365 		}
    366 		switch (c) {
    367 		  case 'P':		/* Pick */
    368 			Movetype = M_DRAW;
    369 			goto ret;
    370 		  case 'U':		/* Use Card */
    371 		  case 'D':		/* Discard Card */
    372 			if ((Card_no = getcard()) < 0)
    373 				break;
    374 			Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
    375 			goto ret;
    376 		  case 'O':		/* Order */
    377 			Order = !Order;
    378 			if (Window == W_SMALL) {
    379 				if (!Order)
    380 					mvwaddstr(Score, 12, 21,
    381 						  "o: order hand");
    382 				else
    383 					mvwaddstr(Score, 12, 21,
    384 						  "o: stop ordering");
    385 				wclrtoeol(Score);
    386 			}
    387 			Movetype = M_ORDER;
    388 			goto ret;
    389 		  case 'Q':		/* Quit */
    390 			rub();		/* Same as a rubout */
    391 			break;
    392 		  case 'W':		/* Window toggle */
    393 			Window = nextwin(Window);
    394 			newscore();
    395 			prscore(TRUE);
    396 			wrefresh(Score);
    397 			break;
    398 		  case 'R':		/* Redraw screen */
    399 		  case CTRL('L'):
    400 			wrefresh(curscr);
    401 			break;
    402 		  case 'S':		/* Save game */
    403 			On_exit = FALSE;
    404 			save();
    405 			break;
    406 		  case 'E':		/* Extrapolate */
    407 #ifdef EXTRAP
    408 			if (last_ex)
    409 				break;
    410 			Finished = TRUE;
    411 			if (Window != W_FULL)
    412 				newscore();
    413 			prscore(FALSE);
    414 			wrefresh(Score);
    415 			last_ex = TRUE;
    416 			Finished = FALSE;
    417 #else
    418 			error("%c: command not implemented", c);
    419 #endif
    420 			break;
    421 		  case '\r':		/* Ignore RETURNs and	*/
    422 		  case '\n':		/* Line Feeds		*/
    423 		  case ' ':		/* Spaces		*/
    424 		  case '\0':		/* and nulls		*/
    425 			break;
    426 #ifdef DEBUG
    427 		  case 'Z':		/* Debug code */
    428 			if (!Debug && outf == NULL) {
    429 				char	buf[MAXPATHLEN];
    430 
    431 				prompt(FILEPROMPT);
    432 				leaveok(Board, FALSE);
    433 				refresh();
    434 				sp = buf;
    435 				while ((*sp = readch()) != '\n') {
    436 					if (*sp == killchar())
    437 						goto over;
    438 					else if (*sp == erasechar()) {
    439 						if (--sp < buf)
    440 							sp = buf;
    441 						else {
    442 							addch('\b');
    443 							if (*sp < ' ')
    444 							    addch('\b');
    445 							clrtoeol();
    446 						}
    447 					}
    448 					else
    449 						addstr(unctrl(*sp++));
    450 					refresh();
    451 				}
    452 				*sp = '\0';
    453 				leaveok(Board, TRUE);
    454 				if ((outf = fopen(buf, "w")) == NULL)
    455 					perror(buf);
    456 				setbuf(outf, (char *)NULL);
    457 			}
    458 			Debug = !Debug;
    459 			break;
    460 #endif
    461 		  default:
    462 			error("unknown command: %s", unctrl(c));
    463 			break;
    464 		}
    465 	}
    466 ret:
    467 	leaveok(Board, TRUE);
    468 }
    469 /*
    470  * return whether or not the player has picked
    471  */
    472 haspicked(pp)
    473 reg PLAY	*pp; {
    474 
    475 	reg int	card;
    476 
    477 	if (Topcard <= Deck)
    478 		return TRUE;
    479 	switch (pp->hand[Card_no]) {
    480 	  case C_GAS_SAFE:	case C_SPARE_SAFE:
    481 	  case C_DRIVE_SAFE:	case C_RIGHT_WAY:
    482 		card = 1;
    483 		break;
    484 	  default:
    485 		card = 0;
    486 		break;
    487 	}
    488 	return (pp->hand[card] != C_INIT);
    489 }
    490 
    491 account(card)
    492 reg CARD	card; {
    493 
    494 	reg CARD	oppos;
    495 
    496 	if (card == C_INIT)
    497 		return;
    498 	++Numseen[card];
    499 	if (Play == COMP)
    500 		switch (card) {
    501 		  case C_GAS_SAFE:
    502 		  case C_SPARE_SAFE:
    503 		  case C_DRIVE_SAFE:
    504 			oppos = opposite(card);
    505 			Numgos += Numcards[oppos] - Numseen[oppos];
    506 			break;
    507 		  case C_CRASH:
    508 		  case C_FLAT:
    509 		  case C_EMPTY:
    510 		  case C_STOP:
    511 			Numgos++;
    512 			break;
    513 		}
    514 }
    515 
    516 prompt(promptno)
    517 int	promptno;
    518 {
    519 	static char	*names[] = {
    520 				">>:Move:",
    521 				"Really?",
    522 				"Another hand?",
    523 				"Another game?",
    524 				"Save game?",
    525 				"Same file?",
    526 				"file:",
    527 				"Extension?",
    528 				"Overwrite file?",
    529 			};
    530 	static int	last_prompt = -1;
    531 
    532 	if (promptno == last_prompt)
    533 		move(MOVE_Y, MOVE_X + strlen(names[promptno]) + 1);
    534 	else {
    535 		move(MOVE_Y, MOVE_X);
    536 		if (promptno == MOVEPROMPT)
    537 			standout();
    538 		addstr(names[promptno]);
    539 		if (promptno == MOVEPROMPT)
    540 			standend();
    541 		addch(' ');
    542 		last_prompt = promptno;
    543 	}
    544 	clrtoeol();
    545 }
    546 
    547 sort(hand)
    548 reg CARD	*hand;
    549 {
    550 	reg CARD	*cp, *tp;
    551 	reg CARD	temp;
    552 
    553 	cp = hand;
    554 	hand += HAND_SZ;
    555 	for ( ; cp < &hand[-1]; cp++)
    556 		for (tp = cp + 1; tp < hand; tp++)
    557 			if (*cp > *tp) {
    558 				temp = *cp;
    559 				*cp = *tp;
    560 				*tp = temp;
    561 			}
    562 }
    563 
    564