void* user_func(void* arg) {
operation_stats* stats = (operation_stats*) arg;
struct timeval start;
struct drand48_data ctx;
char* buf;
void* vbuf;
char* zbuf = (char*) malloc(data_block_size*3);
int zbuf_len = data_block_size*3;
assert(!posix_memalign(&vbuf, data_block_size, data_block_size));
buf = vbuf;
init_rand_ctx(&ctx);
while (!shutdown) {
int x = lock_random_file(&ctx);
DFILE* dfile = &dfiles[x];
longlong block_no = rand_block(&ctx, dfile->dfile_len);
longlong offset = block_no * data_block_size;
now(&start);
check_pread(dfile->dfile_fd, buf, data_block_size,
offset, "user", dfile->dfile_fname);
page_check_checksum(buf);
if (compress_level)
decompress_page(zbuf, zbuf_len);
stats_report(stats, &start, &ctx, data_block_size, 0);
pthread_mutex_lock(&dfiles_mutex);
assert(dfiles[x].dfile_locked == 1);
dfiles[x].dfile_locked = 0;
pthread_mutex_unlock(&dfiles_mutex);
}
free(buf);
free(zbuf);
return arg;
}
static void init_gblock(Block *b) {
b->x = TILE_W/2;
b->y = 0;
srand((unsigned int)SDL_GetTicks());
rand_block(b);
}
/* parses options and stores the main game loop */
int main(int argc, char **argv)
{
/* init ncurses environment */
initscr();
cbreak();
noecho();
curs_set(FALSE);
/* init variables */
file = ".hs2048g";
hs = 0;
s = 0;
sl = 0;
SZ = 4;
MAXVAL = 4;
CALLOC2D(g, SZ);
load_score();
int n_blocks = 1;
/* parse options */
int c;
while ((c = getopt(argc, argv, "rchs:b:")) != -1) {
switch (c) {
// color support - assumes your terminal can display colours
// should still work regardless
case 'c':
start_color();
init_pair(1, 1, 0);
init_pair(2, 2, 0);
init_pair(3, 3, 0);
init_pair(4, 4, 0);
init_pair(5, 5, 0);
init_pair(6, 6, 0);
init_pair(7, 7, 0);
break;
// different board sizes
case 's':
FREE2D(g, SZ);
int optint = atoi(optarg);
SZ = optint > 4 ? optint : 4;
CALLOC2D(g, SZ);
break;
// different block spawn rate
case 'b':
n_blocks = atoi(optarg);
break;
// reset hiscores
case 'r':
endwin();
printf("Are you sure you want to reset your highscores? (Y)es or (N)o\n");
int response;
if ((response = getchar()) == 'y' || response == 'Y') {
FILE *fd = fopen(file, "w+");
fclose(fd);
}
exit(EXIT_SUCCESS);
// help menu
case 'h':
endwin();
printf("Controls:\n"
" hjkl, wasd Movement\n"
" q Quit\n"
"\n"
"Usage:\n"
" 2048 [options]\n"
"\n"
"Options:\n"
" -s <size> Set the grid border length\n"
" -b <rate> Set the block spawn rate\n"
" -c Enables color support\n");
exit(EXIT_SUCCESS);
}
}
int width = SZ * (MAXVAL + 2) + 1;
int height = SZ * (MAXVAL + 2) + 3;
// might center in middle of screen
WINDOW *gamewin = newwin(height, width, 1, 1);
keypad(gamewin, TRUE);
/* random seed */
srand((unsigned int)time(NULL));
ITER(2, rand_block());
draw_grid(gamewin);
int key, moved;
while (1) {
/* will goto this if we didn't get a valid keypress */
retry:;
moved = 0;
key = wgetch(gamewin);
sl = 0;
/* should check if anything changed during merge and if not retry */
switch (key) {
case 'h':
case 'a':
case KEY_LEFT:
moved = TURN(DL);
break;
case 'l':
case 'd':
case KEY_RIGHT:
moved = TURN(DR);
break;
case 'j':
case 's':
case KEY_DOWN:
moved = TURN(DD);
break;
case 'k':
case 'w':
case KEY_UP:
moved = TURN(DU);
break;
case 'q':
FREE2D(g, SZ);
erase();
refresh();
endwin();
save_score();
exit(EXIT_SUCCESS);
default:
goto retry;
}
if (!moves_available()) {
endwin();
printf("\n"
"YOU LOSE! - Your score was %d\n", s);
save_score();
exit(EXIT_SUCCESS);
}
if (moved) {
ITER(n_blocks, rand_block());
draw_grid(gamewin);
}
}
}
