/**
 * Comment about getting owner of canal
 */
static inline Owner GetCanalOwner(TileIndex t)
{
	assert(HasTileWaterGround(t));

	if (GetWaterClass(t) != WATER_CLASS_CANAL) {
		return GetTileOwner(t);
		} else { 
		Owner co = (Owner)(GB(_me[t].m6, 0, 2) || GB(_me[t].m6, 6, 2));
		/* Canals don't have OWNER_TOWN, and remapping OWNER_NONE
		* to OWNER_TOWN makes it use one bit less */
		return co == OWNER_TOWN ? OWNER_NONE : co;
	}
}
/**
 * Comment about setting owner of canal
 */
static inline void SetCanalOwner(TileIndex t, Owner co)
{
	if (co == OWNER_NONE) co = OWNER_TOWN;
	SB(_me[t].m6, 0, 2, GB(co, 0, 2));
	SB(_me[t].m6, 6, 2, GB(co, 2, 2));
}