private JunctionFlags RotateJunction(WorldRotation rot, JunctionFlags input)
{
var rotN = (int)rot;
int rotLower = (((int)input & 15) << rotN);
int rotHigher = (((int)input & 240) << rotN);
return (JunctionFlags)((rotLower & 15) | (rotLower >> 4) | ((rotHigher | rotHigher>>4) & 240));
}