private static Direction getDirection(Direction direction, Rotation rotation) {
Direction result;
final int value = direction.getValue() + rotation.getValue();
if (value < NORTH.getValue()) {
result = WEST;
} else if (value > WEST.getValue()) {
result = NORTH;
} else {
result = lookup.get(value);
}
return result;
}
static {
for (Direction direction : Direction.values()) {
lookup.put(direction.getValue(), direction);
}
}