Tic-tac-toe winner check

I have designed a game of tic tac toe and am now trying to implement some way of displaying a winner for either player . I know there are multiple ways of going about this but am unsure of which route to take. Should I be using "if" statements of some kind ? And how should i be defining my X or O in that scope? I have put my code below.

%start of game file
TTCboard = zeros(3,3);% creates a 3x3 matrix of zeros
% for creating the standard tic-tac-toe board in blue and red
figure
plot([0 3],[-1 -1], 'b','linewidth',1);% creates top horizontal line in board
hold on
plot([2 2],[0 -3], 'b','linewidth',1)% creates right-most vertical line
plot([3 3],[0 -3], 'r','linewidth',2)% boxes in right-most lines
plot([0 3],[-3 -3], 'r','linewidth',2)% boxes in the bottom-most lines
plot([0 3],[0 0], 'r','linewidth',2)% boxes in top -most lines
plot([0 3],[-2 -2], 'b','linewidth',1)% creates bottom horizontal line
plot([0 0],[0 -3], 'r','linewidth',2 ...
    )% boxes in left-most lines
plot([1 1],[0 -3], 'b','linewidth',1)% creates left-most vertical line
title('welcome to tic-tac-toe! Good Luck!');% creates title above the game

axis off % keeps the X & y-axis off, creating a better looking natural board
hold off% ensures later commands are added to existing board

xticks([0 1 2 3]); yticks([0 1 2 3]);
xticklabels([]); yticklabels([]); 
player = 'X';  % designates the first player as X
while true % when it is player x's turn, the following holds true
    fprintf('%s click to place an X\n', player); % creates X in the cell clicked on
    [x, y] = ginput(1);
    x = floor(x)+0.5 ;
    y = floor(y)+0.5;
    while TTCboard(x+0.5,-(y-0.5)) ~= 0
        disp('Please pick an open square')% when more than one X or O attempts to be entered in the same space, the message will appear in command window prompting the player to try again
        [x, y] = ginput(1);
        x = floor(x)+0.5;
        y = floor(y)+0.5;
    end
    text(x,y,player, 'horizontalalignment', 'center', 'FontSize',24);% gives specific parameters to the X on the board and centers it in the clicked on cell
    
    TTCboard(x+0.5,-(y-0.5)) = 1;
    
    xticks([0 1 2 3]); yticks([0 1 2 3]);
    xticklabels([]); yticklabels([]);
 
    
    player2 = 'O'; % Designates the 2nd players turn after player 1
    while true %for when it is player 2's turn, the following holds true
        fprintf('%s click to place an O \n', player2);% instructs the player to put down their O in one of the available cells
        [x, y] = ginput(1);
        
        x = floor(x)+0.5;
        y = floor(y)+0.5;
        
        while TTCboard(x+0.5,-(y-0.5)) ~= 0
            disp('Please pick an open square')% when more than one X or O attempts to be entered in the same space, the message will appear in command window.
            [x, y] = ginput(1);
            x = floor(x)+0.5;
            y = floor(y)+0.5;
        end
        text(x,y,player2, 'horizontalalignment', 'center', 'FontSize',24);% specifies the style and size of the O used in the game and centers it
       
        TTCboard(x+0.5,-(y-0.5)) = 2;% assigns a value to the O cell
        
        break;
        
    end
end
%end of game file

Answer 1

[Walter Roberson]

xmask = TTCboard == 1;
if all(xmask,1) || all(xmask,2) || all(diag(xmask)) || TEST_FOR_THE_OTHER_DIAGONAL
  x wins
end

[Nathan Ross]

Could you elaborate a little on that ? I see the direction you are taking it but would that really be all I need ?I tried adding it but am still not getting it?

[Walter Roberson]

It goes right after

    TTCboard(x+0.5,-(y-0.5)) = 1;

[Nathan Ross]

When putting it there my board does not accept any more inputs after the first X input.

figure
plot([0 3],[-1 -1], 'b','linewidth',1);% creates top horizontal line in board
hold on
plot([2 2],[0 -3], 'b','linewidth',1)% creates right-most vertical line
plot([3 3],[0 -3], 'r','linewidth',2)% boxes in right-most lines
plot([0 3],[-3 -3], 'r','linewidth',2)% boxes in the bottom-most lines
plot([0 3],[0 0], 'r','linewidth',2)% boxes in top -most lines
plot([0 3],[-2 -2], 'b','linewidth',1)% creates bottom horizontal line
plot([0 0],[0 -3], 'r','linewidth',2 ...
    )% boxes in left-most lines
plot([1 1],[0 -3], 'b','linewidth',1)% creates left-most vertical line
title('welcome to tic-tac-toe! Good Luck!');% creates title above the game

axis off % keeps the X & y-axis off, creating a better looking natural board
hold off% ensures later commands are added to existing board



xticks([0 1 2 3]); yticks([0 1 2 3]);
xticklabels([]); yticklabels([]); 
player = 'X';  % designates the first player as X
while true % when it is player x's turn, the following holds true
    fprintf('%s click to place an X\n', player); % creates X in the cell clicked on
    [x, y] = ginput(1);
    x = floor(x)+0.5 ;
    y = floor(y)+0.5;
    while TTCboard(x+0.5,-(y-0.5)) ~= 0
        disp('Please pick an open square')% when more than one X or O attempts to be entered in the same space, the message will appear in command window prompting the player to try again
        [x, y] = ginput(1);
        x = floor(x)+0.5;
        y = floor(y)+0.5;
        
    end
    
    text(x,y,player, 'horizontalalignment', 'center', 'FontSize',24);% gives specific parameters to the X on the board and centers it in the clicked on cell
    
    TTCboard(x+0.5,-(y-0.5)) = 1;
    
          xmask = TTCboard == 1;
if all(xmask,1) || all(xmask,2) || all(diag(xmask)) || TEST_FOR_THE_OTHER_DIAGONAL
 disp x wins
end

    xticks([0 1 2 3]); yticks([0 1 2 3]);
    xticklabels([]); yticklabels([]);
    
    
 
    
    player2 = 'O'; % Designates the 2nd players turn after player 1
    while true %for when it is player 2's turn, the following holds true
        fprintf('%s click to place an O \n', player2);% instructs the player to put down their O in one of the available cells
        [x, y] = ginput(1);
        
        x = floor(x)+0.5;
        y = floor(y)+0.5;
        
        while TTCboard(x+0.5,-(y-0.5)) ~= 0
            disp('Please pick an open square')% when more than one X or O attempts to be entered in the same space, the message will appear in command window.
            [x, y] = ginput(1);
            x = floor(x)+0.5;
            y = floor(y)+0.5;
        end
        text(x,y,player2, 'horizontalalignment', 'center', 'FontSize',24);% specifies the style and size of the O used in the game and centers it
       
        TTCboard(x+0.5,-(y-0.5)) = 2;% assigns a value to the O cell
        
   break;
       
        
    end
    
end

[Walter Roberson]

That would be because you have not defined TEST_FOR_THE_OTHER_DIAGONAL which is obviously a placeholder in the code I posted that you are intended to rewrite into code that tests the anti-diagonal.

Also, when a player wins, you need to leave the overall for loop.

[Nathan Ross]

Oh yes of course. My apologies . I have not had much experience with mask functions . I will see where I can go from here. Thank you for your help.