Need help with coding Hangman in Matlab

Hi! I am trying to code the game Hangman in Matlab and I am struggling to make the program recognize when a letter has already been guessed as well as display a message informing the user the letter has already been tried. I attempted to so this with a for loop, arrays and by adjusting some of the variables but nothing seems to be working for me. I have attached my code below with comments but I would really appreciate a general explanation so I can understand the best way to do this without messing up what I have coded thus far. Thanks in advance!

%%importing the word list
words=importdata('word_list.txt');
%%Creating the Figure
% making the Hangman figure by creating lines for the figures to graph 
% in order to form the gallows axis off %turn the axis off because we 
% need a figure, not a graph
%line 1
a=[15,0];b=[0,0];
%line 2
c=[12,12];d=[0,18];
%line 3
e=[5,12];f=[18,18];
%line 4
g=[5,5];h=[12,18];
%plot the figure
figure(1)
line(a,b);line(c,d);line(e,f);line(g,h);
hold on %use Hold on function to hold figure 1
%%generating the word
%generating the spaces and randomly selecting the words
spaces=length(words);
wpos=randi(spaces);
guess=char(words(wpos));
L=length(guess);
i=1:L;
listword(i)='-';
listword;

%%Guessing the Letters
A=0;%The number of attempts
guess;
listword
while A<6 %setting a while loop for the not exceeding the amount of wrong guesses the user has
    fprintf('\nThis is attempt %d you get up to 6 incorrect guesses',A)
    G=input('\nGuess a letter: ','s')
    N=0;
    for z=1:L; %creating a for loop to inspect the length of the word to determine if the letter is present
        if G==guess(z); %if it is then the letter is displayed
            listword(z)=G
            N=N+1;
        else
            N==0;
        end
    end
    if N~=0; %the right letter is guessed and there is no penalty
        disp('You guessed the right letter!')
        A; %the number of tries remains the same
    elseif N==0; %This if statement displays whether the letter guessed is correct. If N equals 0 this displays
        disp('Sorry you did not guess the right letter')
        if A==0
            m=[5,6];n=[3,2];
            left_leg=line(m,n,'color','r');
            left_leg;
        elseif A==1
            q=[5,4];r=[3,2];
            right_leg=line(q,r,'color','r');
            right_leg;
        elseif A==2
            o=[5,4];p=[8,9];
            right_arm=line(o,p, 'color','r');
            right_arm;
        elseif A==3
            k=[5,6];l=[8,9];
            left_arm=line(k,l,'color','r');
            left_arm;
        elseif A==4
            i=[5,5];j=[10,3];
            torso=line(i,j,'color','r');
            torso;
        elseif A==5
            center=[5,11];
            radii=1;
            viscircles(center,radii);
            disp('***YOU HAVE LOST PLEASE PLAY AGAIN***')
            hold on
        end
        A=A+1;
    end
    Q=strcmp(listword,guess);
    if Q==1;
        disp('*****CONGRATULATIONS YOU HAVE WON*****')
        A=A+10
    end
end %end the while loop

[Guillaume]

To format the code properly, select all the code, then press the {}Code button.

I've done this for you this time.

[Amanda Wojcik]

Thank you! I was having some trouble with that but now I know for next time!

Answer 1

[Aidan Mackey]

Hi!

I wrote and published a hangman game recently and I encountered this problem earlier. What you can do is save the letters that have been guessed correctly in a variable, and before you analyze to see if the guess is in the code, check to see if the letter is found in this variable. If it is, use "continue" to reset the loop for guessing. I did it in my code if you want to check it out. :)