Public/PlaySudoku.ps1
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<# .SYNOPSIS Function to play Sudoku .DESCRIPTION Allows a player to play Sudoku .EXAMPLE PlaySudoku .OUTPUTS Gameplay steps to the console. .NOTES The Sudoku game allows the option to generate a board of any difficulty and then allow the user to play the game. If the user gets stuck, there is an option to provide a hint, and or solve the remainder of the puzzle. The game is over when the user has solved the puzzle or the algorithm has solved it. #> Function PlaySudoku { $DifficultyOptions = [System.Collections.Arraylist]@("Easy","Medium","Hard","Expert","Insane") $Difficulty = $null Write-Host "Welcome to PS-Sudoku!" -ForegroundColor Green while($true) { Write-Host "Enter a Difficulty level. The choices are:`n * Easy`n * Medium`n * Hard`n * Expert`n * Insane`n: " -ForegroundColor Green -NoNewline [string]$Difficulty = Read-Host if (($DifficultyOptions.Contains($Difficulty)) -eq $false) { Write-Error "You must select one of the described Difficulty levels" continue } break } Write-Host "Generating a Sudoku puzzle with $Difficulty difficulty..." -ForegroundColor Green $SudokuBoard = GenerateGrid -Difficulty $Difficulty $OriginalBoard = DeepCopyArray -Source $SudokuBoard #Var to keep track of original board. Write-Host "Board Generated!" -ForegroundColor Green Write-Host "This is your Sudoku puzzle..." -ForegroundColor Green PrintSudokuGridUI -OriginalGrid $OriginalBoard -SudokuGrid $SudokuBoard Write-Host "Have fun!" -ForegroundColor Green $count = 0 while ($null -ne (FindEmptySpot -SudokuGrid $SudokuBoard)) { if ($count % 5 -eq 0) { Write-Host "Enter '-hint' to provide a hint given the current state of your puzzle.`nEnter '-solve' to attempt solving given the current state of your puzzle" -ForegroundColor Yellow } $PlayersMove = GetSudokuMove -SudokuGrid $SudokuBoard -OriginalGrid $OriginalBoard if ($PlayersMove -eq '-hint') { Write-Host "Generating a hint given the current puzzle..." -ForegroundColor Yellow $CurrentState = DeepCopyArray -Source $SudokuBoard $Solvable = SolveSudoku -SudokuGrid $CurrentState if ($Solvable) { $EmptySpot = FindEmptySpot -SudokuGrid $SudokuBoard $Hint = $CurrentState[($EmptySpot.Item1)-1][($EmptySpot.Item2)-1] Write-Host -ForegroundColor Cyan "Place $Hint at row:$($EmptySpot.Item1), col:$($EmptySpot.Item2)" } else { Write-Host "The current state of your puzzle is not solvable." -ForegroundColor Red } } elseif ($PlayersMove -eq '-solve') { Write-Host "Attempting to solve the current puzzle..." -ForegroundColor Yellow $CurrentState = DeepCopyArray -Source $SudokuBoard $Solvable = SolveSudoku -SudokuGrid $CurrentState if ($Solvable) { Write-Host -ForegroundColor Green "The puzzle has been solved!" $SudokuBoard = $CurrentState PrintSudokuGridUI -OriginalGrid $OriginalBoard -SudokuGrid $SudokuBoard } else { Write-Host "The current state of your puzzle is not solvable." -ForegroundColor Red } } else { $ValidMove = ValidateSudokuMove -SudokuGrid $SudokuBoard -SudokuMove $PlayersMove if ($ValidMove) { $Row, $Column, $NumToPlace = (($PlayersMove[1].Item1) - 1), (($PlayersMove[1].Item2) - 1), ($PlayersMove[0]) $SudokuBoard[$Row][$Column] = $NumToPlace PrintSudokuGridUI -OriginalGrid $OriginalBoard -SudokuGrid $SudokuBoard } $count++ } } Write-Host "Thanks for playing!" -ForegroundColor Green } |