{
}
-int wait_input(union event *ev)
+int poll_input(union event *ev)
{
- ev->type = EV_KEY;
- ev->key.key = getch();
- return 1;
+ if(have_input()) {
+ ev->type = EV_KEY;
+ ev->key.key = getch();
+ return 1;
+ }
+ return 0;
+}
+
+int have_input(void)
+{
+ return kbhit();
}