write me the code of a gui to play chess in matlab

main.m
% Create a new figure window
fig = figure('Name', 'Chess Game', ...
    'NumberTitle', 'off', 'MenuBar', 'none', ...
    'ToolBar', 'none');

% Create a chessboard image
board = imread('chessboard.png');

% Scale the image to fit the figure
imh = size(board, 1);
imw = size(board, 2);
figw = 600;
figh = figw * imh / imw;
axes('Units', 'pixels', 'Position', [0 0 figw figh]);
imshow(board, 'InitialMagnification', 'fit');

% Initialize the chess pieces
pieces = [
    'rnbqkbnr'
    'pppppppp'
    '        '
    '        '
    '        '
    '        '
    'PPPPPPPP'
    'RNBQKBNR'];

% Define the piece images
piece_size = [60 60];
piece_images = [
    imread('black_rook.png')
    imread('black_knight.png')
    imread('black_bishop.png')
    imread('black_queen.png')
    imread('black_king.png')
    imread('black_bishop.png')
    imread('black_knight.png')
    imread('black_rook.png')
    imread('black_pawn.png')
    imread('white_pawn.png')
    imread('white_rook.png')
    imread('white_knight.png')
    imread('white_bishop.png')
    imread('white_queen.png')
    imread('white_king.png')
    imread('white_bishop.png')
    imread('white_knight.png')
    imread('white_rook.png')
];

% Create a data structure to store the pieces
board_data = zeros(8, 8);
for i = 1:size(pieces, 1)
    for j = 1:size(pieces, 2)
        c = pieces(i,j);
        if c == ' '
            continue;
        end
        piece_index = strfind('rnbqkpRNBQKP', c);
        piece_color = (c == upper(c));
        img = piece_images((piece_index-1)*2+piece_color,:);
        x = (j-1)*piece_size(1) + (piece_size(1)/2);
        y = (8-i)*piece_size(2) + (piece_size(2)/2);
        a = axes('Units', 'pixels', 'Position', [x y piece_size]);
        imshow(img, 'Parent', a);
        board_data(i,j) = piece_index * (piece_color * 2 - 1);
    end
end

% Initialize the game state
turn = 1; % White to move

% Set up mouse click event handler
set(fig, 'WindowButtonDownFcn', @clickCallback);

% Define the click callback function
function clickCallback(~, ~)
    % Code to handle mouse clicks goes here
end
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