/// <summary>
/// 스도쿠 보드 (Grid)에 마지막으로 생성된 스도쿠를 채웁니다.
/// </summary>
public void RestartSudoku()
{
playerActions.Push(new RestartAction(currentSudokuGrid.ToArray()));
var restartedSudokuGrid = new SudokuRow[9];
SudokuUtils.CopySudokuGrid(initialSudokuGrid, restartedSudokuGrid);
UpdateSudokuGridItems(restartedSudokuGrid);
IsUnvalidCellValueAdded = false;
InitiallyFilledSudokuCellsCount = SudokuUtils.GetFilledSudokuCellsCount(initialSudokuGrid, false);
}
/// <summary>
/// 스도쿠 보드 (Grid)에 새로운 스도쿠를 채웁니다.
/// </summary>
public void GenerateAndPopulateSudoku()
{
var newSudokuGrid = sudokuGenerator.GenerateSudoku(SudokuDifficulty);
initialSudokuGrid = new SudokuRow[9];
SudokuUtils.CopySudokuGrid(newSudokuGrid, initialSudokuGrid);
InitiallyFilledSudokuCellsCount = SudokuUtils.GetFilledSudokuCellsCount(initialSudokuGrid, false);
UpdateSudokuGridItems(newSudokuGrid);
IsUnvalidCellValueAdded = false;
playerActions = new Stack <IPlayerAction>();
undonePlayerActions = new Stack <IPlayerAction>();
}
/// <summary>
/// 플레이어가 채운 셀을 기반으로 스도쿠의 현재 진행 상황을 반환합니다.
/// </summary>
public double GetProgress()
{
if (InitiallyFilledSudokuCellsCount == MaxFilledSudokuCellsCount)
{
return(100);
}
int playerFilledCells = SudokuUtils.GetFilledSudokuCellsCount(currentSudokuGrid.ToArray(), true);
double progress = playerFilledCells / (double)(MaxFilledSudokuCellsCount - InitiallyFilledSudokuCellsCount) * 100;
if (progress == 100)
{
SudokuSolved?.Invoke(this, new EventArgs());
}
return(progress);
}
/// <summary>
/// 플레이어가 마지막으로 수행한 동작을 취소합니다.
/// 새로운 스도쿠가 생성되면 플레이어 액션이 다시 시작됩니다.
/// </summary>
/// <returns>취소할 플레이어 액션이 있는지를 반환합니다.</returns>
public bool UndoPlayerAction()
{
if (IsUnvalidCellValueAdded)
{
return(false);
}
if (playerActions.Count > 0)
{
var playerAction = playerActions.Pop();
if (playerAction.PlayerActionType == PlayerActionType.FillCell)
{
undonePlayerActions.Push(playerAction);
var fillCellDec = playerAction as FillCellAction;
currentSudokuGrid[fillCellDec.Row][fillCellDec.Column].Value = null;
RefreshSudokuGridItems();
}
else if (playerAction.PlayerActionType == PlayerActionType.Restart)
{
undonePlayerActions.Push(new RestartAction(currentSudokuGrid.ToArray()));
var restartDec = playerAction as RestartAction;
UpdateSudokuGridItems(restartDec.SudokuGridBeforeAction);
}
else if (playerAction.PlayerActionType == PlayerActionType.Solve)
{
undonePlayerActions.Push(new SolveAction(currentSudokuGrid.ToArray()));
var solveDec = playerAction as SolveAction;
UpdateSudokuGridItems(solveDec.SudokuGridBeforeAction);
InitiallyFilledSudokuCellsCount = SudokuUtils.GetFilledSudokuCellsCount(initialSudokuGrid, false);
}
return(true);
}
return(false);
}