void
process(int ch)
{
int x,y;
struct body *nh;
x = head->x;
y = head->y;
switch(ch)
{
#ifdef KEY_LEFT
case KEY_LEFT:
#endif
case 'h':
x--; break;
#ifdef KEY_DOWN
case KEY_DOWN:
#endif
case 'j':
y++; break;
#ifdef KEY_UP
case KEY_UP:
#endif
case 'k':
y--; break;
#ifdef KEY_RIGHT
case KEY_RIGHT:
#endif
case 'l':
x++; break;
case 'H': x--; running = RUNLEN; ch = tolower(ch); break;
case 'J': y++; running = RUNLEN/2; ch = tolower(ch); break;
case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break;
case 'L': x++; running = RUNLEN; ch = tolower(ch); break;
case '\f': setup(); return;
case CNTRL('Z'): suspend(0); return;
case CNTRL('C'): crash(); return;
case CNTRL('D'): crash(); return;
case ERR: leave(0); return;
default: return;
}
lastch = ch;
if (growing == 0)
{
display(tail, ' ');
tail->next->prev = NULL;
nh = tail->next;
free(tail);
tail = nh;
visible_len--;
}
else growing--;
display(head, BODY);
wmove(tv, y, x);
if (isdigit(ch = winch(tv)))
{
growing += ch-'0';
prize();
score += growing;
running = 0;
wmove(stw, 0, COLS - 12);
wprintw(stw, "Score: %3d", score);
wrefresh(stw);
}
else if(ch != ' ') crash();
nh = newlink();
nh->next = NULL;
nh->prev = head;
head->next = nh;
nh->y = y;
nh->x = x;
display(nh, HEAD);
head = nh;
visible_len++;
if (!(slow && running)) {
wmove(tv, head->y, head->x);
wrefresh(tv);
}
}
int
main(int argc, char **argv)
{
int retval;
struct timeval t, tod;
struct timezone tz;
fd_set rset;
FD_ZERO(&rset);
setbuf(stdout, outbuf);
srandomdev();
signal(SIGINT, leave);
signal(SIGQUIT, leave);
signal(SIGTSTP, suspend); /* process control signal */
initscr();
cbreak();
noecho();
keypad(stdscr, TRUE);
slow = (baudrate() <= 1200);
clear();
if (COLS < 18 || LINES < 5) {
endwin();
errx(1, "screen too small");
}
if (argc == 2)
start_len = atoi(argv[1]);
if ((start_len <= 0) || (start_len > ((LINES-3) * (COLS-2)) / 3))
start_len = LENGTH;
stw = newwin(1, COLS-1, 0, 0);
tv = newwin(LINES-1, COLS-1, 1, 0);
box(tv, '*', '*');
scrollok(tv, FALSE);
scrollok(stw, FALSE);
wmove(stw, 0, 0);
wprintw(stw, " Worm");
refresh();
wrefresh(stw);
wrefresh(tv);
life(); /* Create the worm */
prize(); /* Put up a goal */
while(1)
{
if (wantleave) {
endwin(); /* XXX signal race */
exit(0);
}
if (wantsuspend) {
move(LINES-1, 0);
refresh();
endwin();
fflush(stdout);
kill(getpid(), SIGSTOP);
signal(SIGTSTP, suspend);
cbreak();
noecho();
setup();
wantsuspend = 0;
}
if (running)
{
running--;
process(lastch);
}
else
{
/* fflush(stdout); */
/* Delay could be a command line option */
t.tv_sec = 1;
t.tv_usec = 0;
(void)gettimeofday(&tod, &tz);
FD_SET(STDIN_FILENO, &rset);
retval = select(STDIN_FILENO + 1, &rset, NULL, NULL, &t);
if (retval > 0)
process(getch());
else
process(lastch);
}
}
}
double Book::currPrize() const {
return prize(simulation()->t());
}