TechCategory fallthrough ( ) { switch ( this ) { case OMNI_AERO : return OMNI ; case CLAN_AERO : case CLAN_VEE : return CLAN ; case IS_ADVANCED_AERO : case IS_ADVANCED_VEE : return IS_ADVANCED ; default : return null ; } }
If no value is provided for ASFs or Vees , use the base value .