private string ColorCode(WordLocation location)
{
string code;
if (Colors.ContainsKey(location))
{
code = Colors[location];
}
else
{
code = Cycler.NextColorCode();
Colors[location] = code;
}
return(code);
}
/// <summary>
/// Gets the word in this <see cref="WordSearch"/> at the given <see cref="WordLocation"/>.
/// </summary>
/// <param name="location">A <see cref="WordLocation"/> instance representing the location of the word.</param>
/// <returns>A <see cref="string"/> containing the requested word.</returns>
public string GetWord(WordLocation location)
{
// Ensure that both the start and end locations of the word are in bounds.
ValidateLocation(location.StartRow, location.StartCol);
ValidateLocation(location.EndRow, location.EndCol);
var result = new StringBuilder();
// Iterate through each character in the requested word.
for (var n = 0; n < location.Length; n++)
{
// For each character, calculate its row and column.
var row = location.StartRow + location.DirectionY * n;
var col = location.StartCol + location.DirectionX * n;
// Append the calculated character to the result.
result.Append(Chars[row, col]);
}
return(result.ToString());
}
