Function TileIndexToTileIndexDiffC

src/map_func.h:544–552

* Returns the diff between two tiles * * @param tile_a from tile * @param tile_b to tile * @return the difference between tila_a and tile_b */

 * @return the difference between tila_a and tile_b
 */
inline TileIndexDiffC TileIndexToTileIndexDiffC(TileIndex tile_a, TileIndex tile_b)
{
	TileIndexDiffC difference;

	difference.x = TileX(tile_a) - TileX(tile_b);
	difference.y = TileY(tile_a) - TileY(tile_b);

	return difference;
}

/* Functions to calculate distances */
uint DistanceManhattan(TileIndex, TileIndex); ///< also known as L1-Norm. Is the shortest distance one could go over diagonal tracks (or roads)