NetBSD-5.0.2/games/boggle/boggle/mach.c
/* $NetBSD: mach.c,v 1.18 2008/08/08 16:10:47 drochner Exp $ */
/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Barry Brachman.
*
* 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. 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[] = "@(#)mach.c 8.1 (Berkeley) 6/11/93";
#else
__RCSID("$NetBSD: mach.c,v 1.18 2008/08/08 16:10:47 drochner Exp $");
#endif
#endif /* not lint */
/*
* Terminal interface
*
* Input is raw and unechoed
*/
#include <sys/ioctl.h>
#include <ctype.h>
#include <curses.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <time.h>
#include "bog.h"
#include "extern.h"
static int ccol, crow, maxw;
static int colstarts[MAXCOLS], ncolstarts;
static int lastline;
int ncols, nlines;
extern const char *pword[], *mword[];
extern int ngames, nmwords, npwords, tnmwords, tnpwords;
extern char board[];
extern int usedbits, wordpath[];
extern time_t start_t;
extern int debug;
static void cont_catcher(int);
static int prwidth(const char *const [], int);
static void prword(const char *const [], int);
static void stop_catcher(int);
static void tty_cleanup(void);
static int tty_setup(void);
static void tty_showboard(const char *);
static void winch_catcher(int);
/*
* Do system dependent initialization
* This is called once, when the program starts
*/
int
setup(int sflag, time_t seed)
{
if (tty_setup() < 0)
return(-1);
if (!sflag)
time(&seed);
srandom(seed);
if (debug)
(void) printf("seed = %ld\n", (long) seed);
return(0);
}
/*
* Do system dependent clean up
* This is called once, just before the program terminates
*/
void
cleanup(void)
{
tty_cleanup();
}
/*
* Display the player's word list, the list of words not found, and the running
* stats
*/
void
results(void)
{
int col, row;
int denom1, denom2;
move(LIST_LINE, LIST_COL);
clrtobot();
printw("Words you found (%d):", npwords);
refresh();
move(LIST_LINE + 1, LIST_COL);
prtable(pword, npwords, 0, ncols, prword, prwidth);
getyx(stdscr, row, col);
move(row + 1, col);
printw("Words you missed (%d):", nmwords);
refresh();
move(row + 2, col);
prtable(mword, nmwords, 0, ncols, prword, prwidth);
denom1 = npwords + nmwords;
denom2 = tnpwords + tnmwords;
move(SCORE_LINE, SCORE_COL);
printw("Percentage: %0.2f%% (%0.2f%% over %d game%s)\n",
denom1 ? (100.0 * npwords) / (double) (npwords + nmwords) : 0.0,
denom2 ? (100.0 * tnpwords) / (double) (tnpwords + tnmwords) : 0.0,
ngames, ngames > 1 ? "s" : "");
}
static void
prword(const char *const base[], int indx)
{
printw("%s", base[indx]);
}
static int
prwidth(const char *const base[], int indx)
{
return (strlen(base[indx]));
}
/*
* Main input routine
*
* - doesn't accept words longer than MAXWORDLEN or containing caps
*/
char *
getline(char *q)
{
int ch, done;
char *p;
int row, col;
p = q;
done = 0;
while (!done) {
ch = timerch();
switch (ch) {
case '\n':
case '\r':
case ' ':
done = 1;
break;
case '\e':
findword();
break;
case '\177': /* <del> */
case CTRL('h'): /* <bs> */
if (p == q)
break;
p--;
getyx(stdscr, row, col);
move(row, col - 1);
clrtoeol();
refresh();
break;
case CTRL('u'): /* <^u> */
case CTRL('w'): /* <^w> */
if (p == q)
break;
getyx(stdscr, row, col);
move(row, col - (int) (p - q));
p = q;
clrtoeol();
refresh();
break;
#ifdef SIGTSTP
case CTRL('z'): /* <^z> */
stop_catcher(0);
break;
#endif
case CTRL('s'): /* <^s> */
stoptime();
printw("<PAUSE>");
refresh();
while ((ch = inputch()) != '\021' && ch != '\023')
;
move(crow, ccol);
clrtoeol();
refresh();
starttime();
break;
case CTRL('c'): /* <^c> */
cleanup();
exit(0);
/*NOTREACHED*/
case CTRL('d'): /* <^d> */
done = 1;
ch = EOF;
break;
case CTRL('r'): /* <^l> */
case CTRL('l'): /* <^r> */
redraw();
break;
case '?':
stoptime();
if (help() < 0)
showstr("Can't open help file", 1);
touchwin(stdscr);
starttime();
break;
default:
if (!islower(ch))
break;
if ((int) (p - q) == MAXWORDLEN) {
p = q;
badword();
break;
}
*p++ = ch;
addch(ch);
refresh();
break;
}
}
*p = '\0';
if (ch == EOF)
return((char *) NULL);
return(q);
}
int
inputch(void)
{
return (getch() & 0177);
}
void
redraw(void)
{
clearok(stdscr, 1);
refresh();
}
void
flushin(FILE *fp)
{
(void) tcflush(fileno(fp), TCIFLUSH);
}
static int gone;
/*
* Stop the game timer
*/
void
stoptime(void)
{
time_t t;
(void)time(&t);
gone = (int) (t - start_t);
}
/*
* Restart the game timer
*/
void
starttime(void)
{
time_t t;
(void)time(&t);
start_t = t - (long) gone;
}
/*
* Initialize for the display of the player's words as they are typed
* This display starts at (LIST_LINE, LIST_COL) and goes "down" until the last
* line. After the last line a new column is started at LIST_LINE
* Keep track of each column position for showword()
* There is no check for exceeding COLS
*/
void
startwords(void)
{
crow = LIST_LINE;
ccol = LIST_COL;
maxw = 0;
ncolstarts = 1;
colstarts[0] = LIST_COL;
move(LIST_LINE, LIST_COL);
refresh();
}
/*
* Add a word to the list and start a new column if necessary
* The maximum width of the current column is maintained so we know where
* to start the next column
*/
void
addword(const char *w)
{
int n;
if (crow == lastline) {
crow = LIST_LINE;
ccol += (maxw + 5);
colstarts[ncolstarts++] = ccol;
maxw = 0;
move(crow, ccol);
}
else {
move(++crow, ccol);
if ((n = strlen(w)) > maxw)
maxw = n;
}
refresh();
}
/*
* The current word is unacceptable so erase it
*/
void
badword(void)
{
move(crow, ccol);
clrtoeol();
refresh();
}
/*
* Highlight the nth word in the list (starting with word 0)
* No check for wild arg
*/
void
showword(int n)
{
int col, row;
row = LIST_LINE + n % (lastline - LIST_LINE + 1);
col = colstarts[n / (lastline - LIST_LINE + 1)];
move(row, col);
standout();
printw("%s", pword[n]);
standend();
move(crow, ccol);
refresh();
delay(15);
move(row, col);
printw("%s", pword[n]);
move(crow, ccol);
refresh();
}
/*
* Get a word from the user and check if it is in either of the two
* word lists
* If it's found, show the word on the board for a short time and then
* erase the word
*
* Note: this function knows about the format of the board
*/
void
findword(void)
{
int c, col, found, i, r, row;
char buf[MAXWORDLEN + 1];
getyx(stdscr, r, c);
getword(buf);
found = 0;
for (i = 0; i < npwords; i++) {
if (strcmp(buf, pword[i]) == 0) {
found = 1;
break;
}
}
if (!found) {
for (i = 0; i < nmwords; i++) {
if (strcmp(buf, mword[i]) == 0) {
found = 1;
break;
}
}
}
for (i = 0; i < MAXWORDLEN; i++)
wordpath[i] = -1;
usedbits = 0;
if (!found || checkword(buf, -1, wordpath) == -1) {
move(r, c);
clrtoeol();
addstr("[???]");
refresh();
delay(10);
move(r, c);
clrtoeol();
refresh();
return;
}
standout();
for (i = 0; wordpath[i] != -1; i++) {
row = BOARD_LINE + (wordpath[i] / 4) * 2 + 1;
col = BOARD_COL + (wordpath[i] % 4) * 4 + 2;
move(row, col);
if (board[wordpath[i]] == 'q')
printw("Qu");
else
printw("%c",
toupper((unsigned char)board[wordpath[i]]));
move(r, c);
refresh();
delay(5);
}
standend();
for (i = 0; wordpath[i] != -1; i++) {
row = BOARD_LINE + (wordpath[i] / 4) * 2 + 1;
col = BOARD_COL + (wordpath[i] % 4) * 4 + 2;
move(row, col);
if (board[wordpath[i]] == 'q')
printw("Qu");
else
printw("%c",
toupper((unsigned char)board[wordpath[i]]));
}
move(r, c);
clrtoeol();
refresh();
}
/*
* Display a string at the current cursor position for the given number of secs
*/
void
showstr(const char *str, int delaysecs)
{
addstr(str);
refresh();
delay(delaysecs * 10);
move(crow, ccol);
clrtoeol();
refresh();
}
void
putstr(const char *s)
{
addstr(s);
}
/*
* Get a valid word and put it in the buffer
*/
void
getword(char *q)
{
int ch, col, done, i, row;
char *p;
done = 0;
i = 0;
p = q;
addch('[');
refresh();
while (!done && i < MAXWORDLEN - 1) {
ch = getch() & 0177;
switch (ch) {
case '\177': /* <del> */
case '\010': /* <bs> */
if (p == q)
break;
p--;
getyx(stdscr, row, col);
move(row, col - 1);
clrtoeol();
break;
case '\025': /* <^u> */
case '\027': /* <^w> */
if (p == q)
break;
getyx(stdscr, row, col);
move(row, col - (int) (p - q));
p = q;
clrtoeol();
break;
case ' ':
case '\n':
case '\r':
done = 1;
break;
case '\014': /* <^l> */
case '\022': /* <^r> */
clearok(stdscr, 1);
refresh();
break;
default:
if (islower(ch)) {
*p++ = ch;
addch(ch);
i++;
}
break;
}
refresh();
}
*p = '\0';
addch(']');
refresh();
}
void
showboard(const char *b)
{
tty_showboard(b);
}
void
prompt(const char *mesg)
{
move(PROMPT_LINE, PROMPT_COL);
printw("%s", mesg);
move(PROMPT_LINE + 1, PROMPT_COL);
refresh();
}
static int
tty_setup(void)
{
if (!initscr()) {
fprintf(stderr, "couldn't initialize screen\n");
exit (0);
}
raw();
noecho();
/*
* Does curses look at the winsize structure?
* Should handle SIGWINCH ...
*/
nlines = LINES;
lastline = nlines - 1;
ncols = COLS;
signal(SIGTSTP, stop_catcher);
signal(SIGCONT, cont_catcher);
signal(SIGWINCH, winch_catcher);
return(0);
}
static void
stop_catcher(int signo __unused)
{
sigset_t isigset, osigset;
stoptime();
noraw();
echo();
move(nlines - 1, 0);
refresh();
signal(SIGTSTP, SIG_DFL);
sigemptyset(&isigset);
sigaddset(&isigset, SIGTSTP);
sigprocmask(SIG_UNBLOCK, &isigset, &osigset);
kill(0, SIGTSTP);
sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0);
signal(SIGTSTP, stop_catcher);
}
static void
cont_catcher(int signo __unused)
{
noecho();
raw();
clearok(stdscr, 1);
move(crow, ccol);
refresh();
starttime();
}
/*
* The signal is caught but nothing is done about it...
* It would mean reformatting the entire display
*/
static void
winch_catcher(int signo __unused)
{
struct winsize win;
(void) signal(SIGWINCH, winch_catcher);
(void) ioctl(fileno(stdout), TIOCGWINSZ, &win);
/*
LINES = win.ws_row;
COLS = win.ws_col;
*/
}
static void
tty_cleanup(void)
{
move(nlines - 1, 0);
refresh();
noraw();
echo();
endwin();
}
static void
tty_showboard(const char *b)
{
int i;
int line;
clear();
move(BOARD_LINE, BOARD_COL);
line = BOARD_LINE;
printw("+---+---+---+---+");
move(++line, BOARD_COL);
for (i = 0; i < 16; i++) {
if (b[i] == 'q')
printw("| Qu");
else
printw("| %c ", toupper((unsigned char)b[i]));
if ((i + 1) % 4 == 0) {
printw("|");
move(++line, BOARD_COL);
printw("+---+---+---+---+");
move(++line, BOARD_COL);
}
}
move(SCORE_LINE, SCORE_COL);
printw("Type '?' for help");
refresh();
}