Matlab (GUI) You can choose option 1 or option2 Implement Tic-Tac-Toe in Matlab

Question

Matlab (GUI)

You can choose option 1 or option2

Implement Tic-Tac-Toe in Matlab (GUI) Create a Computer opponent. (Single player) String for player1 = 'X' String for Computer = 'O' Try Option1 or Option2 (Option1) For computer, you can place 'O' randomly (Option2) Or manually, you can place 'O' on the row that player 1 selected and place it on the first empty pushbutton. For example, if player1 chose pushbutton2, Computer chooses pushbutton1. If player1 chose pushbutton6, Computer chooses pushbutton4. If player1 chose pushbuton7, Computer chooses pushbutton8. Put necessary code under every pushbutton Callback Example) function pushbutton1_Callback (hObject, eventdata, handles) handles_pushbutton2_String = 'X' handles_pushbutton1_String = 'O'

Explanation / Answer

function [] = tictactoe() % Setup the figure/windows for the game close all figure('Name','Tic Tac Toe'); plot(-1. -1) axis([0 3 0 3]) set(gca,'xTick',0:3) set(gca,'yTick',0:3) set(gca,'xTickLabel','') set(gca,'yTickLabel','') xlabel('Player: X') grid on shg is_x = 1; % keeps track of the current player state = [[-1 -1 -1] [-1 -1 -1] [-1 -1 -1]]; % the state of the game (-1 none, 0 = O, 1 = X) winner = -1; % is there a winner? is it a tie? % The main game loop. Continue until the game ends with winner ~= -1 while winner == -1 next = play(is_x, state); % play a single round if next == -1 % if the player clicks on a filled in slot, ask them to try again title('Invalid move, please try again'); else state = next; % advance the current state title(''); is_x = mod(is_x + 1,2); % pick the next player and update the player label if is_x == 1 xlabel('Player: X'); else xlabel('Player: O'); end winner = won(state); % check to see if the game is in a winning state end end if winner == 0 % O won warndlg('O wins'); title('O wins'); xlabel(''); elseif winner == 1 % X won warndlg('X wins'); title('X wins'); xlabel(''); else % else it's a tie warndlg('Tie'); title('Tie'); xlabel(''); end end % The state function takes in the current player and the previous state the % game is in and simulates a single round. function state = play(is_x, state) [x y] = ginput(1); % get the mouse position with respect to the plot [col row] = position(x, y); % get the corresponding row/col (note row starts off with 0 at the bottom) row = 2 - row; % the actual row within the state matrix if state(col+1, row+1) ~= -1 % if the player tries to click on a filled spot state = -1; % invalid, ask the player to try again else state(col+1, row+1) = is_x; % set the state and draw the X and the O if is_x drawX(col, 2 - row); else drawO(col, 2 - row); end end end % The won function calculates if the current game state is in a winning % state. function won = won(state) % Horizontal if (state(1,1) == state(1,2) && state(1,1) == state(1,3) && state(1,1) ~= -1) won = state(1,1); elseif (state(2,1) == state(2,2) && state(2,1) == state(2,3) && state(2,1) ~= -1) won = state(2,1); elseif (state(3,1) == state(3,2) && state(3,1) == state(3,3) && state(3,1) ~= -1) won = state(3,1); % Vertical elseif (state(1,1) == state(2,1) && state(1,1) == state(3,1) && state(3,1) ~= -1) won = state(1,1); elseif (state(1,2) == state(2,2) && state(1,2) == state(3,2) && state(1,2) ~= -1) won = state(1,2); elseif (state(1,3) == state(2,3) && state(1,3) == state(3,3) && state(1,3) ~= -1) won = state(1,3); % Diagonal elseif (state(1,1) == state(2,2) && state(1,1) == state(3,3) && state(1,1) ~= -1) won = state(1,1); elseif (state(1,3) == state(2,2) && state(1,3) == state(3,1) && state(2,2) ~= -1) won = state(1,3); % If no more slots are open, it's a tie elseif ~ismember(state, -1) won = 2; else won = -1; end end % Returns the rounded off position of the mouse function [col row] = position(x, y) col = floor(x); row = floor(y); if col > 2 % if we're right on the 3 line, we count it as 2 col = 2; end if row > 2 row = 2; end end function drawX(col, row) hold on x = 0:1; pos = 0:1; neg = 1-x; plot(x+col, pos+row) plot(x+col, neg+row) hold off end function drawO(col, row) hold on t = 0:0.1:2*pi; x = cos(t)/2+0.5; y = sin(t)/2+0.5; plot(x+col, y+row) hold off end

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