I need help with my code for Odd Vs Even

So I am trying to make an Odd vs Even game and I'm having a hard time getting the graph to come out correctly, I know that I have to have a loop so that it can get the correct amount of data points to get a graph, but im just stuck on how to get that. FYI im supposed to have 10,000 games.

%% OvE Part1
%% Description
% Charles Combs
% Students are making a code to make two computers play odds and evens
% together, Player A is either even or Odd, and Player B would be the
% oppiste of player A. When one player gets there score, then they get a
% point while the other player gets none. This game continues for 10,000
% turns. After that all the scores are added up, and the player with the
% largest score wins.

clearvars
clc
%% Steps for Odd vs Even

%A
%B

%A throw one;
%B does the same

%A_throw=rand(?)
%B_throw=rand(?)
%add up outcome of both rand outputs

%If outcome is divisible by 2, A score increases by 1, and B score is increased by 0
%Else If A score increases by 0, and B score increases by 1

%Plot the difference in A_score and B_score.

%% Initial Conditions

scoreA = 0; % odd
scoreB = 0; % even
games = 0;

%% Game Started

while(games < 1)
    playerA = randi(2);
    playerB = randi(2);
     if(playerA ~= playerB) 
         games = games+1;
     end
     
     if playerA == 1 
         if playerB == 1
             scoreB = scoreB +1;
         elseif playerB == 2
            scoreA = scoreA +1;
         end
         
     elseif playerA == 2
         if playerB == 1
             scoreA = scoreA +1;
         elseif playerB == 2
             scoreB = scoreB +1;
         end
     end
end


%% Results of Game

fprintf("Score of Player B is %d/n", scoreB)
fprintf("Score of Player A is %d/n", scoreA)

%% New Value for Plotting
diff_i = scoreA - scoreB;
%% Plotting this Bad Boy

histogram(diff_i, games)
title('Difference in Scores vs # of games');
xlabel('Throws');
ylabel('ScoreA - ScoreB')


%% Who Won?

if scoreA > scoreB
    fprintf("Player A won!")
elseif scoreA < scoreB
    fprintf("Player B won!")
else
    fprintf("OMG!! It's a draw!")
end

Answer 1

[David Hill]

playerA=randi(2,1,10000);
playerB=randi(2,1,10000);
scoreA=or(and(playerA==1,playerB==2),and(playerA==2,playerB==2));
scoreB=~scoreA;
diff_i = cumsum(scoreA) - cumsum(scoreB);
plot(diff_i);

Answer 2

[Walter Roberson]

You only iterate until the random selection is different once .

You are not recording the scores as you go, so you have nothing to plot.

A_won = zeros(1,MaxGames);
B_won = zeros(1,MaxGames);

For game K, increment A_won(K) or B_won(K) .

Afterwards you can plot cumsum(A_won) vs cumsum(B_won)

[Walter Roberson]

By the way, you do not have to do as much work on the random assignements of player.

playerA = randi(2);
playerB = 3-playerA;

If A got 1 then B gets 3-1 -> 2. If A got 2 then B gets 3-2 -> 1. Always different, no need for tests.