TileIndex tile;

		} canal;

		struct {

			TileIndex tile;

			const struct BaseStation *st;

			const struct StationSpec *statspec;

			CargoID cargo_type;

		} station;

		struct {

			TileIndex tile;

			Town *town;

			HouseID house_id;

			bool not_yet_constructed;      ///< True for construction check

		} house;

		struct {

			TileIndex tile;

			Industry *ind;

			IndustryGfx gfx;

			IndustryType type;

		} industry;

		struct {

			const struct CargoSpec *cs;

		} cargo;

		struct {