private static SnakeOrLadderEntity ParseLine(string line)
{
if (line.StartsWith("#"))
{
//Ignorring lines starting with #, those can be used for comments
return(null);
}
if (string.IsNullOrWhiteSpace(line))
{
//Ignorring empty lines
return(null);
}
string[] lineParts = line.Split(' ');
if (lineParts.Length < 2)
{
Console.WriteLine($"ERROR: Head or tail position is missing in line. Line content: {line}");
return(null);
}
if (lineParts.Length > 2)
{
Console.WriteLine($"WARNING: Line contents additional data: {line}. Additional data in the line will be ignored.");
}
int headPosition;
int tailPosition;
try
{
headPosition = int.Parse(lineParts[0]);
tailPosition = int.Parse(lineParts[1]);
}
catch
{
Console.WriteLine($"ERROR: Components of a line can't be parsed to int. Line content: {line}");
return(null);
}
if (!SnakeOrLadderValidator.Validate(headPosition, tailPosition))
{
return(null);
}
SnakeOrLadderEntity snakeOrLadder = new SnakeOrLadderEntity(headPosition, tailPosition);
return(snakeOrLadder);
}
private static SnakeOrLadderEntity[] ParseLines(string[] lines)
{
List <SnakeOrLadderEntity> snakesAndLaddersOnBoard = new List <SnakeOrLadderEntity>();
foreach (string line in lines)
{
SnakeOrLadderEntity snakeOrLadder = ParseLine(line);
if (snakeOrLadder != null)
{
Console.WriteLine($"Loadded a {snakeOrLadder.GetVariant()} from {snakeOrLadder.HeadPosition} to {snakeOrLadder.TailPosition}.");
snakesAndLaddersOnBoard.Add(snakeOrLadder);
}
}
if (!SnakeOrLadderValidator.ValidateSnakesLadderCombinations(snakesAndLaddersOnBoard))
{
return(new SnakeOrLadderEntity[0]);
}
return(snakesAndLaddersOnBoard.ToArray());
}
