void loadscores(void)
{
Sint4 p=0,i,x;
readscores();
if (gauntlet)
p=111;
if (diggers==2)
p+=222;
if (scorebuf[p++]!='s')
for (i=0;i<11;i++) {
scorehigh[i+1]=0;
strcpy(scoreinit[i],"...");
}
else
for (i=1;i<11;i++) {
for (x=0;x<3;x++)
scoreinit[i][x]=scorebuf[p++];
p+=2;
for (x=0;x<6;x++)
highbuf[x]=scorebuf[p++];
scorehigh[i+1]=atol(highbuf);
}
}
int
main(int argc, char *argv[])
{
struct sigaction sa;
int ch, i;
if (pledge("stdio rpath wpath cpath tty", NULL) == -1)
err(1, "pledge");
#ifdef LOGGING
const char *home;
home = getenv("HOME");
if (home == NULL || *home == '\0')
err(1, "getenv");
snprintf(logpath, sizeof(logpath), "%s/%s", home, ".snake.log");
logfile = fopen(logpath, "a");
#endif
while ((ch = getopt(argc, argv, "hl:stw:")) != -1)
switch ((char)ch) {
case 'w': /* width */
ccnt = strtonum(optarg, 1, INT_MAX, NULL);
break;
case 'l': /* length */
lcnt = strtonum(optarg, 1, INT_MAX, NULL);
break;
case 's': /* score */
if (readscores(0))
snscore(0);
else
printf("no scores so far\n");
return 0;
break;
case 't': /* slow terminal */
fast = 0;
break;
case 'h':
default:
fprintf(stderr, "usage: %s [-st] [-l length] "
"[-w width]\n", getprogname());
return 1;
}
readscores(1);
penalty = loot = 0;
initscr();
#ifdef KEY_LEFT
keypad(stdscr, TRUE);
#endif
nonl();
cbreak();
noecho();
if (!lcnt || lcnt > LINES - 2)
lcnt = LINES - 2;
if (!ccnt || ccnt > COLS - 3)
ccnt = COLS - 3;
i = lcnt < ccnt ? lcnt : ccnt;
if (i < 4) {
endwin();
errx(1, "screen too small for a fair game.");
}
/*
* chunk is the amount of money the user gets for each $.
* The formula below tries to be fair for various screen sizes.
* We only pay attention to the smaller of the 2 edges, since
* that seems to be the bottleneck.
* This formula is a hyperbola which includes the following points:
* (24, $25) (original scoring algorithm)
* (12, $40) (experimentally derived by the "feel")
* (48, $15) (a guess)
* This will give a 4x4 screen $99/shot. We don't allow anything
* smaller than 4x4 because there is a 3x3 game where you can win
* an infinite amount of money.
*/
if (i < 12)
i = 12; /* otherwise it isn't fair */
/*
* Compensate for border. This really changes the game since
* the screen is two squares smaller but we want the default
* to be $25, and the high scores on small screens were a bit
* much anyway.
*/
i += 2;
chunk = (675.0 / (i + 6)) + 2.5; /* min screen edge */
memset(&sa, 0, sizeof sa);
sigemptyset(&sa.sa_mask);
sa.sa_handler = stop;
sigaction(SIGINT, &sa, NULL);
snrand(&finish);
snrand(&you);
snrand(&money);
snrand(&snake[0]);
for (i = 1; i < 6; i++)
chase(&snake[i], &snake[i - 1]);
setup();
mainloop();
return 0;
}
