public IEnumerable <CellSquare> Walk(CellSquare from)
{
var cursor = from;
for (var index = 0; index < Times; index++)
{
cursor = cursor.MoveLeft();
yield return(cursor);
}
}
public IEnumerable <CellSquare> Walk(CellSquare from)
{
var cursor = from;
foreach (var instruction in Instructions)
{
foreach (var point in instruction.Walk(cursor))
{
cursor = point;
yield return(point);
}
}
}
public int DistanceTo(CellSquare point)
{
return(Math.Abs(X - point.X) + Math.Abs(Y - point.Y));
}
public bool Equals(CellSquare other) => X == other.X && Y == other.Y;
