public void RemoveTile(GridTileBrush tileBrush)
 {
     if (m_GridTileBrushes.Contains(tileBrush))
     {
         m_GridTileBrushes.Remove(tileBrush);
     }
 }
 public GridTileBrush(GridTileBrush gridTileBrush)
 {
     this.m_GridTile = gridTileBrush.m_GridTile;
     this.m_Height   = gridTileBrush.m_Height;
     this.m_Offset   = gridTileBrush.m_Offset;
     this.m_Rotation = gridTileBrush.m_Rotation;
 }