Function Object_GetDistanceToEncoded

src/object.c:114–136

* Gets the distance from the given object to the given encoded index. * @param o The object. * @param encoded The encoded index. * @return The distance. */

 * @return The distance.
 */
uint16 Object_GetDistanceToEncoded(Object *o, uint16 encoded)
{
	Structure *s;
	tile32 position;

	s = Tools_Index_GetStructure(encoded);

	if (s != NULL) {
		uint16 packed;

		position = s->o.position;
		packed = Tile_PackTile(position);

		/* ENHANCEMENT -- Originally this was o->type, where 'o' refers to a unit. */
		packed += g_table_structure_layoutEdgeTiles[g_table_structureInfo[s->o.type].layout][(Orientation_Orientation256ToOrientation8(Tile_GetDirection(o->position, position)) + 4) & 7];

		position = Tile_UnpackTile(packed);
	} else {
		position = Tools_Index_GetTile(encoded);
	}

	return Tile_GetDistance(o->position, position);
}