Function CheckFree2x2Area

src/town_cmd.cpp:2631–2642

* Checks if a house of size 2x2 can be built at this tile. * @param tile The tile of the house's northernmost tile. * @param z The maximum tile z, so all tiles are the same height. * @param noslope Are foundations disallowed for this house? * @return true iff house can be built here. * @see CheckBuildHouseSameZ() */

 * @see CheckBuildHouseSameZ()
 */
static bool CheckFree2x2Area(TileIndex tile, int z, bool noslope)
{
	/* we need to check this tile too because we can be at different tile now */
	if (!CheckBuildHouseSameZ(tile, z, noslope)) return false;

	for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
		tile += TileOffsByDiagDir(d);
		if (!CheckBuildHouseSameZ(tile, z, noslope)) return false;
	}

	return true;
}


/**