public override string ToString()
{
var sb = new StringBuilder();
for (int y = 0; y < Used.GetLength(1); y++)
{
for (int x = 0; x < Used.GetLength(0); x++)
{
sb.Append(string.Format("{1}{0}{1}", (EmptyPos.X == x && EmptyPos.Y == y) ? "_"
: ((DataPos.X == x && DataPos.Y == y) ? "G"
: ((Used[x, y] > 20) ? "#"
: ".")),
x == 0 && y == 0 ? "|" : " "));
}
sb.AppendLine();
}
return(sb.ToString());
}
