LVL_START
#define WHEEL_TIMEOUT_CUTOFF (LVL_START(LVL_DEPTH))
if (delta < LVL_START(1)) {
} else if (delta < LVL_START(2)) {
} else if (delta < LVL_START(3)) {
} else if (delta < LVL_START(4)) {
} else if (delta < LVL_START(5)) {
} else if (delta < LVL_START(6)) {
} else if (delta < LVL_START(7)) {
} else if (LVL_DEPTH > 8 && delta < LVL_START(8)) {