if (IsSavegameVersionBefore(194)) {

		/* In old savegame versions, the heightlevel was coded in bits 0..3 of the type field */

		for (TileIndex t = 0; t < map_size; t++) {

			_m[t].height = GB(_m[t].type, 0, 4);

			SB(_m[t].type, 0, 2, GB(_m[t].m6, 0, 2));

			SB(_m[t].m6, 0, 2, 0);

		}

	}

	/* in version 2.1 of the savegame, town owner was unified. */

	if (IsSavegameVersionBefore(2, 1)) ConvertTownOwner();