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tesselation, should be optional
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@jpbruyere
jpbruyere committed Sep 20, 2021
1 parent 4b007c2 commit 9aec3f8
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6 changes: 6 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1 +1,7 @@
# VkChess.net

<p align="center">
<a href="screenshot.png">
<kbd><img src="screenshot.png" height="300"></kbd>
</a>
</p>
211 changes: 173 additions & 38 deletions src/BoardWidget.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,9 @@
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using Crow;
using Crow.Drawing;
//using vkvg;
Expand All @@ -13,10 +15,13 @@ namespace vkChess
public class BoardWidget : Widget
{
Picture sprites;
string filePath;
IList<string> moves;
string[,] currentBoard;
Piece[,] board;

[DefaultValue(null)]
public virtual Piece[,] Board {
public Piece[,] Board {
get { return board; }
set {
if (board == value) {
Expand All @@ -28,15 +33,84 @@ public class BoardWidget : Widget
RegisterForGraphicUpdate ();
}
}
public BoardWidget ():base()
public virtual IList<string> Moves {
get => moves;
set {
if (moves == value)
return;

if (moves is ObservableList<string> ol) {
ol.ListAdd -= Lines_ListAdd;
ol.ListRemove -= Lines_ListRemove;
ol.ListClear -= Lines_ListClear;
}

moves = value;

if (moves is ObservableList<string> olNew) {
olNew.ListAdd += Lines_ListAdd;
olNew.ListRemove += Lines_ListRemove;
olNew.ListClear += Lines_ListClear;
}

NotifyValueChanged ("Moves", moves);

replayAllMoves ();

RegisterForGraphicUpdate ();
}
}
public string FilePath {
get => FilePath;
set {
if (filePath == value)
return;
filePath = value;
NotifyValueChangedAuto (filePath);
RegisterForGraphicUpdate ();

if (string.IsNullOrEmpty (filePath))
resetCurrentBoard ();
else
loadFromFile ();
}
}
public BoardWidget (): base()
{
sprites = new SvgPicture ("data/Pieces.svg");
}
static readonly string[,] boardInit = {
{"wr", "wp", "", "", "", "", "bp", "br"},
{"wk", "wp", "", "", "", "", "bp", "bk"},
{"wb", "wp", "", "", "", "", "bp", "bb"},
{"wq", "wp", "", "", "", "", "bp", "bq"},
{"wK", "wp", "", "", "", "", "bp", "bK"},
{"wb", "wp", "", "", "", "", "bp", "bb"},
{"wk", "wp", "", "", "", "", "bp", "bk"},
{"wr", "wp", "", "", "", "", "bp", "br"}
};
void Lines_ListAdd (object sender, ListChangedEventArg e)
{
processMove (currentBoard, e.Element.ToString());
RegisterForRedraw ();
}

void Lines_ListRemove (object sender, ListChangedEventArg e)
{
replayAllMoves ();
RegisterForRedraw ();
}
void Lines_ListClear (object sender, ListClearEventArg e)
{
resetCurrentBoard();
RegisterForRedraw ();
}
protected override void onDraw (Context gr)
{
base.onDraw (gr);

this.setFontForContext (gr);

/*gr.FontFace = Font.Name;
gr.FontSize = (uint)Font.Size;*/

Expand Down Expand Up @@ -88,46 +162,107 @@ protected override void onDraw (Context gr)
}
gr.Fill ();

if (board == null)
if (board != null) {
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
if (board [x, y] == null)
continue;

string spriteName;
if (board [x, y].Player == ChessColor.White)
spriteName = "w";
else
spriteName = "b";

switch (board[x,y].Type) {
case PieceType.Pawn:
spriteName += "p";
break;
case PieceType.Rook:
spriteName += "r";
break;
case PieceType.Knight:
spriteName += "k";
break;
case PieceType.Bishop:
spriteName += "b";
break;
case PieceType.King:
spriteName += "K";
break;
case PieceType.Queen:
spriteName += "q";
break;
}
sprites.Paint (IFace, gr,new Rectangle(
(int)(gridX + x * cellSize),
(int)(gridY + (7 - y) * cellSize),
(int)cellSize,
(int)cellSize),spriteName);
}
}
} else if (moves != null && currentBoard != null) {
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
if (string.IsNullOrEmpty(currentBoard [x, y]))
continue;
sprites.Paint (IFace, gr,new Rectangle(
(int)(gridX + x * cellSize),
(int)(gridY + (7 - y) * cellSize),
(int)cellSize,
(int)cellSize),currentBoard[x, y]);
}
}
}
}
void loadFromFile () {
try {
using (Stream stream = new FileStream (filePath, FileMode.Open))
using (StreamReader sw = new StreamReader (stream))
Moves = sw.ReadLine ().Split (' ');
} catch (Exception ex) {
Crow.MessageBox.ShowModal (IFace, MessageBox.Type.Error, $"Failed loading {filePath}\n{ex.Message}");
}
}
void resetCurrentBoard () => currentBoard = boardInit.Clone() as string[,];
void replayAllMoves () {
resetCurrentBoard ();
if (moves == null)
return;
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
if (board [x, y] == null)
continue;

string spriteName;
if (board [x, y].Player == ChessColor.White)
spriteName = "w";
else
spriteName = "b";

switch (board[x,y].Type) {
case PieceType.Pawn:
spriteName += "p";
break;
case PieceType.Rook:
spriteName += "r";
break;
case PieceType.Knight:
spriteName += "k";
break;
case PieceType.Bishop:
spriteName += "b";
break;
case PieceType.King:
spriteName += "K";
break;
case PieceType.Queen:
spriteName += "q";
break;
int i = 0;

lock (VkChess.movesMutex) {
foreach (string move in moves) {
try {
processMove (currentBoard, move);
} catch {
Console.WriteLine ($"move: {move} i:{i}");
}
sprites.Paint (IFace, gr,new Rectangle(
(int)(gridX + x * cellSize),
(int)(gridY + (7 - y) * cellSize),
(int)cellSize,
(int)cellSize),spriteName);
i++;
}
}
}
void processMove (string[,] board, string move) {
ReadOnlySpan<char> m = move.AsSpan();
Point p0 = VkChess.getChessCell (m.Slice (0, 2));
Point p1 = VkChess.getChessCell (m.Slice (2, 2));

if (board[p0.X, p0.Y][1] == 'p') {//pawn
if (m.Length == 5) //pawnPromotion
board[p0.X, p0.Y] = board[p0.X, p0.Y][0].ToString() + m[4];
else if (p0.X != p1.X && string.IsNullOrEmpty (board[p1.X, p1.Y]))//prise en passant
board[p0.X, p1.Y] = null;
}else if (board[p0.X, p0.Y][1] == 'K' && Math.Abs(p0.X - p1.X) > 1) {//rook
if (p0.X - p1.X < 0) {//small rock
board[5, p0.Y] = board[7, p0.Y];
board[7, p0.Y] = null;
} else { //big rock
board[3, p0.Y] = board[0, p0.Y];
board[0, p0.Y] = null;
}
}
board[p1.X, p1.Y] = board[p0.X, p0.Y];
board[p0.X, p0.Y] = null;
}
}
}
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