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ANKE-3: Migrate VB.NET Sudoku application to C# #4

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ANKE-3: Migrate VB.NET Sudoku application to C# #4

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16 changes: 16 additions & 0 deletions windowsforms/Sudoku/CS/sudoku/Program.cs
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using System;
using System.Windows.Forms;

namespace Sudoku
{
internal static class Program
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}
71 changes: 71 additions & 0 deletions windowsforms/Sudoku/CS/sudoku/core/Game.cs
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using System;
using System.Collections.Generic;
using System.Linq;

namespace Sudoku
{
public class Game
{
public event Action<int[][]> ShowClues;
public event Action<int[][]> ShowSolution;

private readonly List<int>[] _hRow = new List<int>[9];
private readonly List<int>[] _vRow = new List<int>[9];
private readonly List<int>[] _threeSquare = new List<int>[9];
private readonly int[][] _grid = new int[9][];

private Random _r;

public void NewGame(Random rn)
{
_r = rn;
CreateNewGame();
}

private void InitializeLists()
{
for (int x = 0; x <= 8; x++)
{
_hRow[x] = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
_vRow[x] = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
_threeSquare[x] = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
int[] row = new int[9];
_grid[x] = row;
}
}

private void CreateNewGame()
{
do
{
InitializeLists();
for (int y = 0; y <= 8; y++)
{
for (int x = 0; x <= 8; x++)
{
_grid[y][x] = 0;
int si = (y / 3) * 3 + (x / 3);
int[] useful = _hRow[y].Intersect(_vRow[x]).Intersect(_threeSquare[si]).ToArray();
if (useful.Any())
{
int randomNumber = useful[_r.Next(0, useful.Count())];
_hRow[y].Remove(randomNumber);
_vRow[x].Remove(randomNumber);
_threeSquare[si].Remove(randomNumber);
_grid[y][x] = randomNumber;
if (y == 8 && x == 8) break;
}
}
if (y == 8) break;
}
} while (_grid[8][8] == 0);

ShowClues?.Invoke(_grid);
}

public void ShowGridSolution()
{
ShowSolution?.Invoke(_grid);
}
}
}
193 changes: 193 additions & 0 deletions windowsforms/Sudoku/CS/sudoku/gui/Form1.Designer.cs
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105 changes: 105 additions & 0 deletions windowsforms/Sudoku/CS/sudoku/gui/Form1.cs
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;

namespace Sudoku
{
public partial class Form1 : Form
{
private Game _game = new Game();
private readonly Random _r = new Random();

public Form1()
{
InitializeComponent();
_game.ShowClues += Game_ShowClues;
_game.ShowSolution += Game_ShowSolution;
}

private void Form1_Load(object sender, EventArgs e)
{
DataGridView1.Rows.Add(9);
ComboBox1.SelectedIndex = 0;
btnNew.PerformClick();
}

private void btnNew_Click(object sender, EventArgs e)
{
_game.NewGame(_r);
}

private void DataGridView1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.DrawLine(new Pen(Color.Black, 2), 75, 0, 75, 228);
e.Graphics.DrawLine(new Pen(Color.Black, 2), 152, 0, 152, 228);
e.Graphics.DrawLine(new Pen(Color.Black, 2), 0, 75, 228, 75);
e.Graphics.DrawLine(new Pen(Color.Black, 2), 0, 153, 228, 153);
}

private void btnSolution_Click(object sender, EventArgs e)
{
_game.ShowGridSolution();
}

private void ComboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
btnNew.PerformClick();
}

public void Game_ShowClues(int[][] grid)
{
for (int y = 0; y <= 8; y++)
{
List<int> cells = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
for (int c = 1; c <= 9 - (5 - ComboBox1.SelectedIndex); c++)
{
int randomNumber = cells[_r.Next(0, cells.Count)];
cells.Remove(randomNumber);
}
for (int x = 0; x <= 8; x++)
{
if (cells.Contains(x + 1))
{
DataGridView1.Rows[y].Cells[x].Value = grid[y][x];
DataGridView1.Rows[y].Cells[x].Style.ForeColor = Color.Red;
DataGridView1.Rows[y].Cells[x].ReadOnly = true;
}
else
{
DataGridView1.Rows[y].Cells[x].Value = "";
DataGridView1.Rows[y].Cells[x].Style.ForeColor = Color.Black;
DataGridView1.Rows[y].Cells[x].ReadOnly = false;
}
}
}
}

public void Game_ShowSolution(int[][] grid)
{
for (int y = 0; y <= 8; y++)
{
for (int x = 0; x <= 8; x++)
{
if (DataGridView1.Rows[y].Cells[x].Style.ForeColor == Color.Black)
{
if (string.IsNullOrEmpty(DataGridView1.Rows[y].Cells[x].Value?.ToString()))
{
DataGridView1.Rows[y].Cells[x].Style.ForeColor = Color.Blue;
DataGridView1.Rows[y].Cells[x].Value = grid[y][x];
}
else
{
if (grid[y][x].ToString() != DataGridView1.Rows[y].Cells[x].Value.ToString())
{
DataGridView1.Rows[y].Cells[x].Style.ForeColor = Color.Blue;
DataGridView1.Rows[y].Cells[x].Value = grid[y][x];
}
}
}
}
}
}
}
}
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