NetBSD/games/mille/move.c
jsm 092d313019 Add use of `const' where appropriate to the games.
This merges in all such remaining changes from the Linux port of the
NetBSD games, except in hunt (where substantial changes from OpenBSD
need to be looked at).

Some such changes were previously covered in PRs bin/6041, bin/6146,
bin/6148, bin/6150, bin/6151, bin/6580, bin/6660, bin/7993, bin/7994,
bin/8039, bin/8057 and bin/8093.
1999-09-08 21:17:44 +00:00

571 lines
12 KiB
C

/* $NetBSD: move.c,v 1.10 1999/09/08 21:17:51 jsm Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)move.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: move.c,v 1.10 1999/09/08 21:17:51 jsm Exp $");
#endif
#endif /* not lint */
#include <termios.h>
#include "mille.h"
#ifndef unctrl
#include "unctrl.h"
#endif
/*
* @(#)move.c 1.2 (Berkeley) 3/28/83
*/
#undef CTRL
#define CTRL(c) (c - 'A' + 1)
void
domove()
{
PLAY *pp;
int i, j;
bool goodplay;
pp = &Player[Play];
if (Play == PLAYER)
getmove();
else
calcmove();
Next = FALSE;
goodplay = TRUE;
switch (Movetype) {
case M_DISCARD:
if (haspicked(pp)) {
if (pp->hand[Card_no] == C_INIT)
if (Card_no == 6)
Finished = TRUE;
else
error("no card there");
else {
if (issafety(pp->hand[Card_no])) {
error("discard a safety?");
goodplay = FALSE;
break;
}
Discard = pp->hand[Card_no];
pp->hand[Card_no] = C_INIT;
Next = TRUE;
if (Play == PLAYER)
account(Discard);
}
}
else
error("must pick first");
break;
case M_PLAY:
goodplay = playcard(pp);
break;
case M_DRAW:
Card_no = 0;
if (Topcard <= Deck)
error("no more cards");
else if (haspicked(pp))
error("already picked");
else {
pp->hand[0] = *--Topcard;
#ifdef DEBUG
if (Debug)
fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
#endif
acc:
if (Play == COMP) {
account(*Topcard);
if (issafety(*Topcard))
pp->safety[*Topcard-S_CONV] = S_IN_HAND;
}
if (pp->hand[1] == C_INIT && Topcard > Deck) {
Card_no = 1;
pp->hand[1] = *--Topcard;
#ifdef DEBUG
if (Debug)
fprintf(outf, "DOMOVE: Draw %s\n", C_name[*Topcard]);
#endif
goto acc;
}
pp->new_battle = FALSE;
pp->new_speed = FALSE;
}
break;
case M_ORDER:
break;
}
/*
* move blank card to top by one of two methods. If the
* computer's hand was sorted, the randomness for picking
* between equally valued cards would be lost
*/
if (Order && Movetype != M_DRAW && goodplay && pp == &Player[PLAYER])
sort(pp->hand);
else
for (i = 1; i < HAND_SZ; i++)
if (pp->hand[i] == C_INIT) {
for (j = 0; pp->hand[j] == C_INIT; j++)
if (j >= HAND_SZ) {
j = 0;
break;
}
pp->hand[i] = pp->hand[j];
pp->hand[j] = C_INIT;
}
if (Topcard <= Deck)
check_go();
if (Next)
nextplay();
}
/*
* Check and see if either side can go. If they cannot,
* the game is over
*/
void
check_go()
{
CARD card;
PLAY *pp, *op;
int i;
for (pp = Player; pp < &Player[2]; pp++) {
op = (pp == &Player[COMP] ? &Player[PLAYER] : &Player[COMP]);
for (i = 0; i < HAND_SZ; i++) {
card = pp->hand[i];
if (issafety(card) || canplay(pp, op, card)) {
#ifdef DEBUG
if (Debug) {
fprintf(outf, "CHECK_GO: can play %s (%d), ", C_name[card], card);
fprintf(outf, "issafety(card) = %d, ", issafety(card));
fprintf(outf, "canplay(pp, op, card) = %d\n", canplay(pp, op, card));
}
#endif
return;
}
#ifdef DEBUG
else if (Debug)
fprintf(outf, "CHECK_GO: cannot play %s\n",
C_name[card]);
#endif
}
}
Finished = TRUE;
}
int
playcard(pp)
PLAY *pp;
{
int v;
CARD card;
/*
* check and see if player has picked
*/
switch (pp->hand[Card_no]) {
default:
if (!haspicked(pp))
mustpick:
return error("must pick first");
case C_GAS_SAFE: case C_SPARE_SAFE:
case C_DRIVE_SAFE: case C_RIGHT_WAY:
break;
}
card = pp->hand[Card_no];
#ifdef DEBUG
if (Debug)
fprintf(outf, "PLAYCARD: Card = %s\n", C_name[card]);
#endif
Next = FALSE;
switch (card) {
case C_200:
if (pp->nummiles[C_200] == 2)
return error("only two 200's per hand");
case C_100: case C_75:
if (pp->speed == C_LIMIT)
return error("limit of 50");
case C_50:
if (pp->mileage + Value[card] > End)
return error("puts you over %d", End);
case C_25:
if (!pp->can_go)
return error("cannot move now");
pp->nummiles[card]++;
v = Value[card];
pp->total += v;
pp->hand_tot += v;
if ((pp->mileage += v) == End)
check_ext(FALSE);
break;
case C_GAS: case C_SPARE: case C_REPAIRS:
if (pp->battle != opposite(card))
return error("can't play \"%s\"", C_name[card]);
pp->battle = card;
if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
pp->can_go = TRUE;
break;
case C_GO:
if (pp->battle != C_INIT && pp->battle != C_STOP
&& !isrepair(pp->battle))
return error("cannot play \"Go\" on a \"%s\"",
C_name[pp->battle]);
pp->battle = C_GO;
pp->can_go = TRUE;
break;
case C_END_LIMIT:
if (pp->speed != C_LIMIT)
return error("not limited");
pp->speed = C_END_LIMIT;
break;
case C_EMPTY: case C_FLAT: case C_CRASH:
case C_STOP:
pp = &Player[other(Play)];
if (!pp->can_go)
return error("opponent cannot go");
else if (pp->safety[safety(card) - S_CONV] == S_PLAYED)
protected:
return error("opponent is protected");
pp->battle = card;
pp->new_battle = TRUE;
pp->can_go = FALSE;
pp = &Player[Play];
break;
case C_LIMIT:
pp = &Player[other(Play)];
if (pp->speed == C_LIMIT)
return error("opponent has limit");
if (pp->safety[S_RIGHT_WAY] == S_PLAYED)
goto protected;
pp->speed = C_LIMIT;
pp->new_speed = TRUE;
pp = &Player[Play];
break;
case C_GAS_SAFE: case C_SPARE_SAFE:
case C_DRIVE_SAFE: case C_RIGHT_WAY:
if (pp->battle == opposite(card)
|| (card == C_RIGHT_WAY && pp->speed == C_LIMIT)) {
if (!(card == C_RIGHT_WAY && !isrepair(pp->battle))) {
pp->battle = C_GO;
pp->can_go = TRUE;
}
if (card == C_RIGHT_WAY && pp->speed == C_LIMIT)
pp->speed = C_INIT;
if (pp->new_battle
|| (pp->new_speed && card == C_RIGHT_WAY)) {
pp->coups[card - S_CONV] = TRUE;
pp->total += SC_COUP;
pp->hand_tot += SC_COUP;
pp->coupscore += SC_COUP;
}
}
/*
* if not coup, must pick first
*/
else if (pp->hand[0] == C_INIT && Topcard > Deck)
goto mustpick;
pp->safety[card - S_CONV] = S_PLAYED;
pp->total += SC_SAFETY;
pp->hand_tot += SC_SAFETY;
if ((pp->safescore += SC_SAFETY) == NUM_SAFE * SC_SAFETY) {
pp->total += SC_ALL_SAFE;
pp->hand_tot += SC_ALL_SAFE;
}
if (card == C_RIGHT_WAY) {
if (pp->speed == C_LIMIT)
pp->speed = C_INIT;
if (pp->battle == C_STOP || pp->battle == C_INIT) {
pp->can_go = TRUE;
pp->battle = C_INIT;
}
if (!pp->can_go && isrepair(pp->battle))
pp->can_go = TRUE;
}
Next = -1;
break;
case C_INIT:
error("no card there");
Next = -1;
break;
}
if (pp == &Player[PLAYER])
account(card);
pp->hand[Card_no] = C_INIT;
Next = (Next == (bool)-1 ? FALSE : TRUE);
return TRUE;
}
void
getmove()
{
char c;
#ifdef EXTRAP
static bool last_ex = FALSE; /* set if last command was E */
if (last_ex) {
undoex();
prboard();
last_ex = FALSE;
}
#endif
for (;;) {
prompt(MOVEPROMPT);
leaveok(Board, FALSE);
refresh();
while ((c = readch()) == killchar() || c == erasechar())
continue;
if (islower(c))
c = toupper(c);
if (isprint(c) && !isspace(c)) {
addch(c);
refresh();
}
switch (c) {
case 'P': /* Pick */
Movetype = M_DRAW;
goto ret;
case 'U': /* Use Card */
case 'D': /* Discard Card */
if ((Card_no = getcard()) < 0)
break;
Movetype = (c == 'U' ? M_PLAY : M_DISCARD);
goto ret;
case 'O': /* Order */
Order = !Order;
if (Window == W_SMALL) {
if (!Order)
mvwaddstr(Score, 12, 21,
"o: order hand");
else
mvwaddstr(Score, 12, 21,
"o: stop ordering");
wclrtoeol(Score);
}
Movetype = M_ORDER;
goto ret;
case 'Q': /* Quit */
rub(0); /* Same as a rubout */
break;
case 'W': /* Window toggle */
Window = nextwin(Window);
newscore();
prscore(TRUE);
wrefresh(Score);
break;
case 'R': /* Redraw screen */
case CTRL('L'):
wrefresh(curscr);
break;
case 'S': /* Save game */
On_exit = FALSE;
save();
break;
case 'E': /* Extrapolate */
#ifdef EXTRAP
if (last_ex)
break;
Finished = TRUE;
if (Window != W_FULL)
newscore();
prscore(FALSE);
wrefresh(Score);
last_ex = TRUE;
Finished = FALSE;
#else
error("%c: command not implemented", c);
#endif
break;
case '\r': /* Ignore RETURNs and */
case '\n': /* Line Feeds */
case ' ': /* Spaces */
case '\0': /* and nulls */
break;
#ifdef DEBUG
case 'Z': /* Debug code */
if (!Debug && outf == NULL) {
char buf[MAXPATHLEN];
prompt(FILEPROMPT);
leaveok(Board, FALSE);
refresh();
sp = buf;
while ((*sp = readch()) != '\n') {
if (*sp == killchar())
goto over;
else if (*sp == erasechar()) {
if (--sp < buf)
sp = buf;
else {
addch('\b');
if (*sp < ' ')
addch('\b');
clrtoeol();
}
}
else
addstr(unctrl(*sp++));
refresh();
}
*sp = '\0';
leaveok(Board, TRUE);
if ((outf = fopen(buf, "w")) == NULL)
warn("%s", buf);
setbuf(outf, (char *)NULL);
}
Debug = !Debug;
break;
#endif
default:
error("unknown command: %s", unctrl(c));
break;
}
}
ret:
leaveok(Board, TRUE);
}
/*
* return whether or not the player has picked
*/
int
haspicked(pp)
const PLAY *pp;
{
int card;
if (Topcard <= Deck)
return TRUE;
switch (pp->hand[Card_no]) {
case C_GAS_SAFE: case C_SPARE_SAFE:
case C_DRIVE_SAFE: case C_RIGHT_WAY:
card = 1;
break;
default:
card = 0;
break;
}
return (pp->hand[card] != C_INIT);
}
void
account(card)
CARD card;
{
CARD oppos;
if (card == C_INIT)
return;
++Numseen[card];
if (Play == COMP)
switch (card) {
case C_GAS_SAFE:
case C_SPARE_SAFE:
case C_DRIVE_SAFE:
oppos = opposite(card);
Numgos += Numcards[oppos] - Numseen[oppos];
break;
case C_CRASH:
case C_FLAT:
case C_EMPTY:
case C_STOP:
Numgos++;
break;
}
}
void
prompt(promptno)
int promptno;
{
static const char *const names[] = {
">>:Move:",
"Really?",
"Another hand?",
"Another game?",
"Save game?",
"Same file?",
"file:",
"Extension?",
"Overwrite file?",
};
static int last_prompt = -1;
if (promptno == last_prompt)
move(MOVE_Y, MOVE_X + strlen(names[promptno]) + 1);
else {
move(MOVE_Y, MOVE_X);
if (promptno == MOVEPROMPT)
standout();
addstr(names[promptno]);
if (promptno == MOVEPROMPT)
standend();
addch(' ');
last_prompt = promptno;
}
clrtoeol();
}
void
sort(hand)
CARD *hand;
{
CARD *cp, *tp;
CARD temp;
cp = hand;
hand += HAND_SZ;
for ( ; cp < &hand[-1]; cp++)
for (tp = cp + 1; tp < hand; tp++)
if (*cp > *tp) {
temp = *cp;
*cp = *tp;
*tp = temp;
}
}