freebsd-src/games/rogue/curses.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

695 lines
13 KiB
C

/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Timothy C. Stoehr.
*
* 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.
*/
#ifndef lint
static char sccsid[] = "@(#)curses.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
/*
* curses.c
*
* This source herein may be modified and/or distributed by anybody who
* so desires, with the following restrictions:
* 1.) No portion of this notice shall be removed.
* 2.) Credit shall not be taken for the creation of this source.
* 3.) This code is not to be traded, sold, or used for personal
* gain or profit.
*
*/
#ifdef CURSES
/* The following is a curses emulation package suitable for the rogue program
* in which it is included. No other suitability is claimed or suspected.
* Only those routines currently needed by this rogue program are included.
* This is being provided for those systems that don't have a suitable
* curses package and want to run this rogue program.
*
* Compile the entire program with -DCURSES to incorporate this package.
*
* The following is NOT supported:
* "%D", "%B", "%n", or "%>" inside a cursor motion (cm) termcap string.
* Terminals in which the cursor motion addresses the row differently from
* the column, as in ":cm=\E%2,%3" or ":cm=\EY%+x;%+y"
* Termcap database stored in the TERMCAP environ variable as returned
* from md_getenv(). Only the termcap file name can be stored there.
* See the comments for md_getenv() in machdep.c.
* Terminals without non-destructive backspace. Backspace (^H) is used
* for cursor motion regardless of any termcap entries.
* The ":tc=" termcap entry is ignored.
*
* Suggestions:
* Use line-feed as your termcap "do" entry: ":do=^J", ":do=\012" or
* ":do=\n" This will help cursor motion optimization. If line-feed
* won't work, then a short escape sequence will do.
*/
#include <stdio.h>
#include "rogue.h"
boolean tc_tname();
#define BS 010
#define LF 012
#define CR 015
#define ESC '\033'
#define TAB '\011'
#define ST_MASK 0x80
#define BUFLEN 256
char terminal[DROWS][DCOLS];
char buffer[DROWS][DCOLS];
char *tc_file;
char cm_esc[16];
char cm_sep[16];
char cm_end[16];
boolean cm_reverse = 0;
boolean cm_two = 0;
boolean cm_three = 0;
boolean cm_char = 0;
short cm_inc = 0;
boolean screen_dirty;
boolean lines_dirty[DROWS];
boolean buf_stand_out = 0;
boolean term_stand_out = 0;
int LINES = DROWS;
int COLS = DCOLS;
WINDOW scr_buf;
WINDOW *curscr = &scr_buf;
char *CL = (char *) 0;
char *CM = (char *) 0;
char *UC = (char *) 0; /* UP */
char *DO = (char *) 0;
char *VS = "";
char *VE = "";
char *TI = "";
char *TE = "";
char *SO = "";
char *SE = "";
short cur_row;
short cur_col;
initscr()
{
clear();
get_term_info();
printf("%s%s", TI, VS);
}
endwin()
{
printf("%s%s", TE, VE);
md_cbreak_no_echo_nonl(0);
}
move(row, col)
short row, col;
{
curscr->_cury = row;
curscr->_curx = col;
screen_dirty = 1;
}
mvaddstr(row, col, str)
short row, col;
char *str;
{
move(row, col);
addstr(str);
}
addstr(str)
char *str;
{
while (*str) {
addch((int) *str++);
}
}
addch(ch)
register int ch;
{
short row, col;
row = curscr->_cury;
col = curscr->_curx++;
if (buf_stand_out) {
ch |= ST_MASK;
}
buffer[row][col] = (char) ch;
lines_dirty[row] = 1;
screen_dirty = 1;
}
mvaddch(row, col, ch)
short row, col;
int ch;
{
move(row, col);
addch(ch);
}
refresh()
{
register i, j, line;
short old_row, old_col, first_row;
if (screen_dirty) {
old_row = curscr->_cury;
old_col = curscr->_curx;
first_row = cur_row;
for (i = 0; i < DROWS; i++) {
line = (first_row + i) % DROWS;
if (lines_dirty[line]) {
for (j = 0; j < DCOLS; j++) {
if (buffer[line][j] != terminal[line][j]) {
put_char_at(line, j, buffer[line][j]);
}
}
lines_dirty[line] = 0;
}
}
put_cursor(old_row, old_col);
screen_dirty = 0;
fflush(stdout);
}
}
wrefresh(scr)
WINDOW *scr;
{
short i, col;
printf("%s", CL);
cur_row = cur_col = 0;
for (i = 0; i < DROWS; i++) {
col = 0;
while (col < DCOLS) {
while ((col < DCOLS) && (buffer[i][col] == ' ')) {
col++;
}
if (col < DCOLS) {
put_cursor(i, col);
}
while ((col < DCOLS) && (buffer[i][col] != ' ')) {
put_st_char((int) buffer[i][col]);
cur_col++;
col++;
}
}
}
put_cursor(curscr->_cury, curscr->_curx);
fflush(stdout);
scr = scr; /* make lint happy */
}
mvinch(row, col)
short row, col;
{
move(row, col);
return((int) buffer[row][col]);
}
clear()
{
printf("%s", CL);
fflush(stdout);
cur_row = cur_col = 0;
move(0, 0);
clear_buffers();
}
clrtoeol()
{
short row, col;
row = curscr->_cury;
for (col = curscr->_curx; col < DCOLS; col++) {
buffer[row][col] = ' ';
}
lines_dirty[row] = 1;
}
standout()
{
buf_stand_out = 1;
}
standend()
{
buf_stand_out = 0;
}
crmode()
{
md_cbreak_no_echo_nonl(1);
}
noecho()
{
/* crmode() takes care of this */
}
nonl()
{
/* crmode() takes care of this */
}
clear_buffers()
{
register i, j;
screen_dirty = 0;
for (i = 0; i < DROWS; i++) {
lines_dirty[i] = 0;
for (j = 0; j < DCOLS; j++) {
terminal[i][j] = ' ';
buffer[i][j] = ' ';
}
}
}
put_char_at(row, col, ch)
register row, col, ch;
{
put_cursor(row, col);
put_st_char(ch);
terminal[row][col] = (char) ch;
cur_col++;
}
put_cursor(row, col)
register row, col;
{
register i, rdif, cdif;
short ch, t;
rdif = (row > cur_row) ? row - cur_row : cur_row - row;
cdif = (col > cur_col) ? col - cur_col : cur_col - col;
if (((row > cur_row) && DO) || ((cur_row > row) && UC)) {
if ((rdif < 4) && (cdif < 4)) {
for (i = 0; i < rdif; i++) {
printf("%s", ((row < cur_row) ? UC : DO));
}
cur_row = row;
if (col == cur_col) {
return;
}
}
}
if (row == cur_row) {
if (cdif <= 6) {
for (i = 0; i < cdif; i++) {
ch = (col < cur_col) ? BS :
terminal[row][cur_col + i];
put_st_char((int) ch);
}
cur_row = row;
cur_col = col;
return;
}
}
cur_row = row;
cur_col = col;
row += cm_inc;
col += cm_inc;
if (cm_reverse) {
t = row;
row = col;
col = t;
}
if (cm_two) {
printf("%s%02d%s%02d%s", cm_esc, row, cm_sep, col, cm_end);
} else if (cm_three) {
printf("%s%03d%s%03d%s", cm_esc, row, cm_sep, col, cm_end);
} else if (cm_char) {
printf("%s%c%s%c%s", cm_esc, row, cm_sep, col, cm_end);
} else {
printf("%s%d%s%d%s", cm_esc, row, cm_sep, col, cm_end);
}
}
put_st_char(ch)
register ch;
{
if ((ch & ST_MASK) && (!term_stand_out)) {
ch &= ~ST_MASK;
printf("%s%c", SO, ch);
term_stand_out = 1;
} else if ((!(ch & ST_MASK)) && term_stand_out) {
printf("%s%c", SE, ch);
term_stand_out = 0;
} else {
ch &= ~ST_MASK;
putchar(ch);
}
}
get_term_info()
{
FILE *fp;
char *term, *tcf;
char buf[BUFLEN];
if (tcf = md_getenv("TERMCAP")) {
if (strlen(tcf) > 40) {
clean_up("TERMCAP file name too long");
}
tc_file = tcf;
} else {
if (!(tc_file = md_gdtcf())) {
clean_up("I need a termcap file");
}
}
if (!(term = md_getenv("TERM"))) {
clean_up("Cannot find TERM variable in environ");
}
if ((fp = fopen(tc_file, "r")) == NULL) {
sprintf(buf, "Cannot open TERMCAP file: %s", tc_file);
clean_up(buf);
}
if (!tc_tname(fp, term, buf)) {
sprintf(buf, "Cannot find TERM type: %s in TERMCAP file: %s", term,
tc_file);
clean_up(buf);
}
tc_gtdata(fp, buf);
fclose(fp);
}
boolean
tc_tname(fp, term, buf)
FILE *fp;
char *term;
char *buf;
{
short i, j;
boolean found = 0;
char *fg;
while (!found) {
i = 0;
fg = fgets(buf, BUFLEN, fp);
if (fg != NULL) {
if ( (buf[0] != '#') && (buf[0] != ' ') && (buf[0] != TAB) &&
(buf[0] != CR) && (buf[0] != LF)) {
while (buf[i] && (!found)) {
j = 0;
while (buf[i] == term[j]) {
i++;
j++;
}
if ((!term[j]) && ((buf[i] == '|') || (buf[i] == ':'))) {
found = 1;
} else {
while (buf[i] && (buf[i] != '|') && (buf[i] != ':')) {
i++;
}
if (buf[i]) {
i++;
}
}
}
}
} else {
break;
}
}
return(found);
}
tc_gtdata(fp, buf)
FILE *fp;
char *buf;
{
short i;
boolean first = 1;
do {
if (!first) {
if ((buf[0] != TAB) && (buf[0] != ' ')) {
break;
}
}
first = 0;
i = 0;
while (buf[i]) {
while (buf[i] && (buf[i] != ':')) {
i++;
}
if (buf[i] == ':') {
if (!strncmp(buf + i, ":cl=", 4)) {
tc_gets(buf + i, &CL);
} else if (!strncmp(buf + i, ":cm=", 4)) {
tc_gets(buf + i, &CM);
} else if (!strncmp(buf + i, ":up=", 4)) {
tc_gets(buf + i, &UC);
} else if (!strncmp(buf + i, ":do=", 4)) {
tc_gets(buf + i, &DO);
} else if (!strncmp(buf + i, ":vs=", 4)) {
tc_gets(buf + i, &VS);
} else if (!strncmp(buf + i, ":ve=", 4)) {
tc_gets(buf + i, &VE);
} else if (!strncmp(buf + i, ":ti=", 4)) {
tc_gets(buf + i, &TI);
} else if (!strncmp(buf + i, ":te=", 4)) {
tc_gets(buf + i, &TE);
} else if (!strncmp(buf + i, ":vs=", 4)) {
tc_gets(buf + i, &VS);
} else if (!strncmp(buf + i, ":ve=", 4)) {
tc_gets(buf + i, &VE);
} else if (!strncmp(buf + i, ":so=", 4)) {
tc_gets(buf + i, &SO);
} else if (!strncmp(buf + i, ":se=", 4)) {
tc_gets(buf + i, &SE);
} else if (!strncmp(buf + i, ":li#", 4)) {
tc_gnum(buf + i, &LINES);
} else if (!strncmp(buf + i, ":co#", 4)) {
tc_gnum(buf + i, &COLS);
}
i++;
}
}
} while (fgets(buf, BUFLEN, fp) != NULL);
if ((!CM) || (!CL)) {
clean_up("Terminal and termcap must have cm and cl");
}
tc_cmget();
}
tc_gets(ibuf, tcstr)
char *ibuf;
char **tcstr;
{
short i, j, k, n;
char obuf[BUFLEN];
i = 4;
j = 0;
while (ibuf[i] && is_digit(ibuf[i])) {
i++;
}
while (ibuf[i] && (ibuf[i] != ':')) {
if (ibuf[i] == '\\') {
i++;
switch(ibuf[i]) {
case 'E':
obuf[j] = ESC;
i++;
break;
case 'n':
obuf[j] = LF;
i++;
break;
case 'r':
obuf[j] = CR;
i++;
break;
case 'b':
obuf[j] = BS;
i++;
break;
case 't':
obuf[j] = TAB;
i++;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
n = 0;
k = 0;
while (k < 3 && ibuf[i] && is_digit(ibuf[i])) {
n = (8 * n) + (ibuf[i] - '0');
i++;
k++;
}
obuf[j] = (char) n;
break;
default:
obuf[j] = ibuf[i];
i++;
}
} else if (ibuf[i] == '^') {
obuf[j] = ibuf[i+1] - 64;
i += 2;
} else {
obuf[j] = ibuf[i++];
}
j++;
}
obuf[j] = 0;
if (!(*tcstr = md_malloc(j + 1))) {
clean_up("cannot alloc() memory");
}
(void) strcpy(*tcstr, obuf);
}
tc_gnum(ibuf, n)
char *ibuf;
int *n;
{
short i;
int r = 0;
i = 4;
while (is_digit(ibuf[i])) {
r = (r * 10) + (ibuf[i] - '0');
i++;
}
*n = r;
}
tstp()
{
endwin();
md_tstp();
start_window();
printf("%s%s", TI, VS);
wrefresh(curscr);
md_slurp();
}
tc_cmget()
{
short i = 0, j = 0, rc_spec = 0;
while (CM[i] && (CM[i] != '%') && (j < 15)) {
cm_esc[j++] = CM[i++];
}
cm_esc[j] = 0;
while (CM[i] && (rc_spec < 2)) {
if (CM[i] == '%') {
i++;
switch(CM[i]) {
case 'd':
rc_spec++;
break;
case 'i':
cm_inc = 1;
break;
case '2':
cm_two = 1;
rc_spec++;
break;
case '3':
cm_three = 1;
rc_spec++;
break;
case '.':
cm_char = 1;
rc_spec++;
break;
case 'r':
cm_reverse = 1;
break;
case '+':
i++;
cm_inc = CM[i];
cm_char = 1;
rc_spec++;
break;
}
i++;
} else {
j = 0;
while (CM[i] && (CM[i] != '%')) {
cm_sep[j++] = CM[i++];
}
cm_sep[j] = 0;
}
}
j = 0;
if (rc_spec == 2) {
while (CM[i] && (j < 15)) {
cm_end[j++] = CM[i++];
}
}
cm_end[j] = 0;
}
#endif