DC_NO_WATER=0x008,///< don't allow building on water
DC_NO_RAIL_OVERLAP=0x010,///< don't allow overlap of rails (used in buildrail)
// 0x010 is unused
DC_NO_TEST_TOWN_RATING=0x020,///< town rating does not disallow you from building
DC_BANKRUPT=0x040,///< company bankrupts, skip money check, skip vehicle on tile check in some cases
DC_AUTOREPLACE=0x080,///< autoreplace/autorenew is in progress, this shall disable vehicle limits when building, and ignore certain restrictions when undoing things (like vehicle attach callback)