private List <LetterAvailability> GetLetterAvailabilities(GameSquare square)
{
var availabilities = new List <LetterAvailability>();
if (square == null)
{
return(null);
}
if (!square.IsTopFilled && !square.IsTopLeftFilled && !square.IsTopRightFilled)
{
availabilities.Add(LetterAvailability.Top);
}
if (!square.IsBottomFilled && !square.IsBottomLeftFilled && !square.IsBottomRightFilled)
{
availabilities.Add(LetterAvailability.Bottom);
}
if (!square.IsLeftFilled && !square.IsTopLeftFilled && !square.IsBottomLeftFilled)
{
availabilities.Add(LetterAvailability.Left);
}
if (!square.IsRightFilled && !square.IsTopRightFilled && !square.IsBottomRightFilled)
{
availabilities.Add(LetterAvailability.Right);
}
return(availabilities);
}
public GameBoard()
{
Squares = new GameSquare[totalRows, totalColumns];
for (int r = 0; r < totalRows; r++)
{
for (int c = 0; c < totalColumns; c++)
{
Squares[r, c] = new GameSquare(r, c, totalRows, totalColumns);
}
}
}
public bool AddWordToBoard(List <Tile> tilesFromTray, Tile selectedTileFromBoard, string word)
{
int wordStartingPoint;
int startingPointRow;
int startingPointColumn;
var middleSquare = GetMiddleSquare();
if (!middleSquare.IsSquareFilled())
{
wordStartingPoint = (word.Length / 2);
startingPointRow = middleSquare.Row;
startingPointColumn = middleSquare.Column - wordStartingPoint;
foreach (var tile in tilesFromTray)
{
Squares[startingPointRow, startingPointColumn].Tile = tile;
Squares[startingPointRow, startingPointColumn].IsLeftFilled = true;
Squares[startingPointRow, startingPointColumn].IsRightFilled = true;
startingPointColumn += 1;
}
return(true);
}
else
{
GameSquare selectedSquare = null;
foreach (var square in Squares)
{
if (square.Tile == selectedTileFromBoard)
{
selectedSquare = square;
}
}
var letterAvailabilities = GetLetterAvailabilities(selectedSquare);
if (letterAvailabilities != null && letterAvailabilities.Count > 0)
{
var positionOfSelectedLetter = word.IndexOf(selectedTileFromBoard.Letter);
// selected letter is first letter in word
if (positionOfSelectedLetter == 0)
{
// start with vertical
if (letterAvailabilities.Contains(LetterAvailability.Bottom))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block top & bottom
selectedSquare.IsTopFilled = true;
selectedSquare.IsBottomFilled = true;
// go to second letter
startingPointRow += 1;
foreach (var letter in tilesFromTray)
{
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsTopFilled = true;
Squares[startingPointRow, startingPointColumn].IsBottomFilled = true;
startingPointRow += 1;
}
}
// move to horizontal
else if (letterAvailabilities.Contains(LetterAvailability.Right))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block left & right
selectedSquare.IsLeftFilled = true;
selectedSquare.IsRightFilled = true;
// go to second letter
startingPointColumn += 1;
foreach (var letter in tilesFromTray)
{
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsLeftFilled = true;
Squares[startingPointRow, startingPointColumn].IsRightFilled = true;
startingPointColumn += 1;
}
}
}
// selected letter is last letter in word
else if (positionOfSelectedLetter == word.Length - 1)
{
// start with vertical
if (letterAvailabilities.Contains(LetterAvailability.Top))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block top & bottom
selectedSquare.IsTopFilled = true;
selectedSquare.IsBottomFilled = true;
// go to first letter
startingPointRow -= (word.Length - 1);
foreach (var letter in tilesFromTray)
{
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsTopFilled = true;
Squares[startingPointRow, startingPointColumn].IsBottomFilled = true;
startingPointRow += 1;
}
}
// move to horizontal
else if (letterAvailabilities.Contains(LetterAvailability.Left))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block left & right
selectedSquare.IsLeftFilled = true;
selectedSquare.IsRightFilled = true;
// go to first letter
startingPointColumn -= (word.Length - 1);
foreach (var letter in tilesFromTray)
{
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsLeftFilled = true;
Squares[startingPointRow, startingPointColumn].IsRightFilled = true;
startingPointColumn += 1;
}
}
}
// selected letter is in the middle
else
{
// start with vertical
if (letterAvailabilities.Contains(LetterAvailability.Top) &&
letterAvailabilities.Contains(LetterAvailability.Bottom))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block top and bottom
selectedSquare.IsTopFilled = true;
selectedSquare.IsBottomFilled = true;
// go to first letter
startingPointRow -= positionOfSelectedLetter;
foreach (var letter in tilesFromTray)
{
if (startingPointRow == selectedSquare.Row)
{
startingPointRow += 1;
}
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsTopFilled = true;
Squares[startingPointRow, startingPointColumn].IsBottomFilled = true;
startingPointRow += 1;
}
}
// move to horizontal
else if (letterAvailabilities.Contains(LetterAvailability.Left) &&
letterAvailabilities.Contains(LetterAvailability.Right))
{
startingPointRow = selectedSquare.Row;
startingPointColumn = selectedSquare.Column;
// block left and right
selectedSquare.IsLeftFilled = true;
selectedSquare.IsRightFilled = true;
// go to first letter
startingPointColumn -= positionOfSelectedLetter;
foreach (var letter in tilesFromTray)
{
if (startingPointColumn == selectedSquare.Column)
{
startingPointColumn += 1;
}
Squares[startingPointRow, startingPointColumn].Tile = letter;
Squares[startingPointRow, startingPointColumn].IsLeftFilled = true;
Squares[startingPointRow, startingPointColumn].IsRightFilled = true;
startingPointColumn += 1;
}
}
else
{
// Word cannot be placed
return(false);
}
}
return(true);
}
return(false);
}
}
private void setSquareFilledPositions(GameSquare square)
{
if (!square.IsTopCorner)
{
var topSquare = Squares[square.Row - 1, square.Column];
if (topSquare.IsSquareFilled())
{
square.IsTopFilled = true;
}
}
if (!square.IsBottomCorner)
{
var bottomSquare = Squares[square.Row + 1, square.Column];
if (bottomSquare.IsSquareFilled())
{
square.IsBottomFilled = true;
}
}
if (!square.IsLeftCorner)
{
var leftSquare = Squares[square.Row, square.Column - 1];
if (leftSquare.IsSquareFilled())
{
square.IsLeftFilled = true;
}
}
if (!square.IsRightCorner)
{
var rightSquare = Squares[square.Row, square.Column + 1];
if (rightSquare.IsSquareFilled())
{
square.IsRightFilled = true;
}
}
if (!square.IsTopCorner && !square.IsLeftCorner)
{
var topLeftSquare = Squares[square.Row - 1, square.Column - 1];
if (topLeftSquare.IsSquareFilled())
{
square.IsTopLeftFilled = true;
}
}
if (!square.IsTopCorner && !square.IsRightCorner)
{
var topRightSquare = Squares[square.Row - 1, square.Column + 1];
if (topRightSquare.IsSquareFilled())
{
square.IsTopRightFilled = true;
}
}
if (!square.IsBottomCorner && !square.IsLeftCorner)
{
var bottomLeftSquare = Squares[square.Row + 1, square.Column - 1];
if (bottomLeftSquare.IsSquareFilled())
{
square.IsBottomLeftFilled = true;
}
}
if (!square.IsBottomCorner && !square.IsRightCorner)
{
var bottomRightSquare = Squares[square.Row + 1, square.Column + 1];
if (bottomRightSquare.IsSquareFilled())
{
square.IsBottomRightFilled = true;
}
}
}
