public IEnumerable<UnitState> GetNeighbors(UnitState current)
{
return new List<UnitState>
{
current.Translate(Direction.E),
current.Translate(Direction.W),
current.Translate(Direction.SE),
current.Translate(Direction.SW),
current.Translate(Direction.CW),
current.Translate(Direction.CCW)
};
}