/// <summary>
/// Delete the cell at the given index.
/// The user must handle the destructiuon of the component and the the gameobject associated.
/// </summary>
/// <param name="index"></param>
public void DeleteCell(Cell cell)
{
if (_map != null)
{
_map.Remove(cell.GetIndex());
}
}
/// <summary>
/// Get the neighbours of a given cell. It check the possibles neighbours and add it to the returning list if the cell exists.
/// It's not necessary that the cell passed was an existing cell in the grid.
/// </summary>
/// <param name="cell">The cell to check neighbours.</param>
/// <returns>A list of cells that exist in the neighbours of the cell.</returns>
public List <Cell> GetNeighboursCell(ref Cell cell)
{
Vector3Int index = cell.GetIndex();
return(GetNeighboursCell(ref index));
}