Dwarrowdelf.TerrainGen.TerrainData.GetTileData C# (CSharp) Method

        public TileData GetTileData(IntVector3 p)
        {
            return m_tileGrid[p.Z, p.Y, p.X];
        }

 public IEnumerable <Direction> GetValidDirs(IntVector3 p)
 {
     foreach (var d in DirectionExtensions.CardinalUpDownDirections.ToArray())
     {
         var dst = p + d;
         if (m_terrain.Contains(dst) && m_terrain.GetTileData(dst).IsWaterPassable)
         {
             yield return(d);
         }
     }
 }