Hello! I have a code in c++, but it has functions and I don't know how to convert them to matlab, if someone could give me the correct way to transform it, it would be helpful.
#include<iostream>
using namespace std;
int index1;
char board[9] = {'*','*','*','*','*','*','*','*','*'};// Single array represents the board '*' means empty box in board
int isFull()// Board is full
{
for(int i =0;i<9;i++)
{
if(board[i]!='X')
{
if(board[i]!='O')
{
return 0;
}
}
}
return 1;
}
int user_won()//Checks whether user has won
{
for(int i=0;i<9;i+=3)
{
if((board[i]==board[i+1])&&(board[i+1]==board[i+2])&&(board[i]=='O'))
return 1;
}
for(int i=0;i<3;i++)
{
if((board[i]==board[i+3])&&(board[i+3]==board[i+6])&&(board[i]=='O'))
return 1;
}
if((board[0]==board[4])&&(board[4]==board[8])&&(board[0]=='O'))
{
return 1;
}
if((board[2]==board[4])&&(board[4]==board[6])&&(board[2]=='O'))
{
return 1;
}
return 0;
}
int cpu_won()// Checks whether CPU has won
{
for(int i=0;i<9;i+=3)
{
if((board[i]==board[i+1])&&(board[i+1]==board[i+2])&&(board[i]=='X'))
return 1;
}
for(int i=0;i<3;i++)
{
if((board[i]==board[i+3])&&(board[i+3]==board[i+6])&&(board[i]=='X'))
return 1;
}
if((board[0]==board[4])&&(board[4]==board[8])&&(board[0]=='X'))
{
return 1;
}
if((board[2]==board[4])&&(board[4]==board[6])&&(board[2]=='X'))
{
return 1;
}
return 0;
}
void draw_board() //display tic-tac-toe board
{
cout<<endl;
cout<<board[0]<<"|"<<board[1]<<"|"<<board[2]<<endl;
cout<<"-----"<<endl;
cout<<board[3]<<"|"<<board[4]<<"|"<<board[5]<<endl;
cout<<"-----"<<endl;
cout<<board[6]<<"|"<<board[7]<<"|"<<board[8]<<endl;
}
int minimax(bool flag)// The minimax function
{
int max_val=-1000,min_val=1000;
int i,j,value = 1;
if(cpu_won() == 1)
{return 10;}
else if(user_won() == 1)
{return -10;}
else if(isFull()== 1)
{return 0;}
int score[9] = {1,1,1,1,1,1,1,1,1};//if score[i]=1 then it is empty
for(i=0;i<9;i++)
{
if(board[i] == '*')
{
if(min_val>max_val) // reverse of pruning condition.....
{
if(flag == true)
{
board[i] = 'X';
value = minimax(false);
}
else
{
board[i] = 'O';
value = minimax(true);
}
board[i] = '*';
score[i] = value;
}
}
}
if(flag == true)
{
max_val = -1000;
for(j=0;j<9;j++)
{
if(score[j] > max_val && score[j] != 1)
{
max_val = score[j];
index1 = j;
}
}
return max_val;
}
if(flag == false)
{
min_val = 1000;
for(j=0;j<9;j++)
{
if(score[j] < min_val && score[j] != 1)
{
min_val = score[j];
index1 = j;
}
}
return min_val;
}
}
int main() //The main function
{
int move,choice;
cout<<"-------------------------TIC TAC TOE-----------------------------------------------------";
cout<<endl<<"USER--->(O) CPU------>(X)";
cout<<endl<<"SELECT : 1-> Player first 2-> CPU first:";
cin>>choice;
if(choice == 1)
{
draw_board();
up:cout<<endl<<"Enter the move:";
cin>>move;
if(board[move-1]=='*')
{
board[move-1] = 'O';
draw_board();
}
else
{
cout<<endl<<"Invalid Move......Try different move";
goto up;
}
}
while(true)
{
cout<<endl<<"CPU MOVE....";
minimax(true);
board[index1] = 'X';
draw_board();
if(cpu_won()==1)
{
cout<<endl<<"CPU WON.....";
break;
}
if(isFull()==1)
{
cout<<endl<<"Draw....";
break;
}
again: cout<<endl<<"Enter the move:";
cin>>move;
if(board[move-1]=='*')
{
board[move-1] = 'O';
draw_board();
}
else
{
cout<<endl<<"Invalid Move......Try different move";
goto again;
}
if(user_won()==1)
{
cout<<endl<<"You Won......";
break;
}
if(isFull() == 1)
{
cout<<endl<<"Draw....";
break;
}
}
}
