/// <summary>
/// Searches East for a given word on a given board starting at a given origin point. If it finds the word,
/// it returns a list of all of the coordinates that make up the word. Otherwise, it returns null
/// </summary>
/// <param name="board">WordSearchBoard to search on</param>
/// <param name="origin">Coordinate point to begin searching</param>
/// <param name="word">Word to search for</param>
/// <returns>If it finds the word, returns a list of all of the coordinates that make up the word. Otherwise, it returns null</returns>
public List <Coordinate> CheckEast(WordSearchBoard board, Coordinate origin, string word)
{
_output = new List <Coordinate>();
Coordinate tempCoordinate = new Coordinate(origin.X, origin.Y);
foreach (char letter in word)
{
try
{
if (board.GetCharAt(tempCoordinate) == letter)
{
_output.Add(tempCoordinate);
tempCoordinate = new Coordinate(tempCoordinate.X + 1, tempCoordinate.Y);
}
else
{
return(null);
}
}
catch (ArgumentException)
{
//ArgumentException here means that the tempCoordinate is pointed to an invalid coordinate off the board
//Return null because we know words cannot wrap around to another part of the board
return(null);
}
}
return(_output);
}
/// <summary>
/// Searches North-West for a given word on a given board starting at a given origin point. If it finds the word,
/// it returns a list of all of the coordinates that make up the word. Otherwise, it returns null
/// </summary>
/// <param name="board">WordSearchBoard to search on</param>
/// <param name="origin">Coordinate point to begin searching</param>
/// <param name="word">Word to search for</param>
/// <returns>If it finds the word, returns a list of all of the coordinates that make up the word. Otherwise, it returns null</returns>
public List <Coordinate> CheckNorthWest(WordSearchBoard board, Coordinate origin, string word)
{
_output = new List <Coordinate>();
Coordinate tempCoordinate = new Coordinate(origin.X, origin.Y);
foreach (char letter in word)
{
try
{
if (board.GetCharAt(tempCoordinate) == letter)
{
_output.Add(tempCoordinate);
tempCoordinate = new Coordinate(tempCoordinate.X - 1, tempCoordinate.Y - 1);
}
else
{
return(null);
}
}
catch (ArgumentException)
{
//ArgumentException here means that the tempCoordinate is pointed to an invalid coordinate off the board
return(null);
}
}
return(_output);
}
public void TestWith1CharBoard()
{
List <string> lines = new List <string>();
lines.Add("A");
_board = new WordSearchBoard(lines);
Assert.AreEqual(1, _board.GetLength());
}
public void TestListWithValidStrings()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
}
public void TestListWithBlankStringsThrowsException()
{
List <string> lines = new List <string>();
lines.Add("");
lines.Add("");
lines.Add("");
_board = new WordSearchBoard(lines);
}
public void Setup()
{
_results = new List <Coordinate>();
_lines = new List <string>();
_lines.Add("A,B,C");
_lines.Add("D,E,F");
_lines.Add("G,H,I");
_board = new WordSearchBoard(_lines);
}
public void TestWithInvalidY()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
_board.GetCharAt(0, 3);
}
public void TestWithNegativeX()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
_board.GetCharAt(-1, 0);
}
public void TestWithNegativeY()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
_board.GetCharAt(new Coordinate(0, -1));
}
public void TestToString()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
Assert.AreEqual("A,B,C\nD,E,F\nG,H,I", _board.ToString());
}
public void TestWithSmallBoard()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
Assert.AreEqual(3, _board.GetLength());
}
/// <summary>
/// Accepts list of all of the lines given to the application and sets up the game
/// </summary>
/// <param name="inputLines">List of all of the lines in the input file</param>
/// <exception cref="ArgumentException">Exception thrown if there are 0 lines in the input file or if the list of words (first line) is null or empty</exception>
public WordSearchGame(List<string> inputLines)
{
_words = new List<string>();
if (inputLines.Count == 0) throw new ArgumentException("Board cannot have 0 lines");
if (inputLines[0] == null) throw new ArgumentException("List of words cannot be null");
if (inputLines[0].Length > 0)
_words.AddRange(inputLines[0].Split(","));
inputLines.RemoveAt(0);
_board = new WordSearchBoard(inputLines);
}
public void TestWithValidXY()
{
List <string> lines = new List <string>();
lines.Add("A,B,C");
lines.Add("D,E,F");
lines.Add("G,H,I");
_board = new WordSearchBoard(lines);
Assert.AreEqual('A', _board.GetCharAt(0, 0));
Assert.AreEqual('B', _board.GetCharAt(1, 0));
Assert.AreEqual('C', _board.GetCharAt(2, 0));
Assert.AreEqual('D', _board.GetCharAt(0, 1));
Assert.AreEqual('E', _board.GetCharAt(1, 1));
Assert.AreEqual('F', _board.GetCharAt(2, 1));
Assert.AreEqual('G', _board.GetCharAt(0, 2));
Assert.AreEqual('H', _board.GetCharAt(1, 2));
Assert.AreEqual('I', _board.GetCharAt(2, 2));
}
public void TestNullInputThrowsException()
{
_board = new WordSearchBoard(null);
}