TicTacToe Game - Games Source Code in C++

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Home » C++ Home » Games Home » TicTacToe Game

A D V E R T I S E M E N T

Title	TicTacToe Game
Author	Harsh
Author Email	harsh_sahajwani [at] indiatimes.com
Description	This is a tictactoe game in C++. Although it is not too smart to prevent you from winning but it is worth playing it. I hope u enjoy it. Happy gaming!
Category	C++ » Games
Hits	385251
Code	Select and Copy the Code
Code : #include<iostream.h> //opening headerfile iostream for in-out #include<conio.h> //opening headerfile conio for clrscr(); #include<stdlib.h> //opening headerfile stdlib for random(int); char tic[3][3]; //global matrix declerations int d,e,f,a,t,i,j,x,y; //global variables declerations void display(); //displays the matrix void user(); //function for user's move void newdisp(); //function for display of matrix after every move void pc(); //function for pc's move int check(); //function for finding out the winner int horcheck(); //function for horizontal line check int vercheck(); //function for vertical line check int diagcheck(); //function for diagonal line check main() //main function { clrscr(); //clears the previous output screen randomize(); //initialize random function calling int d=random(2); //random function call for(i=0;i<3;i++) for(j=0;j<3;j++) tic[i][j]=' '; //assigning space ' ' to all elements of matrix display(); //display function call d==0?user():pc(); //random starting of the game depending on d getch(); //provides output by getting input without returning to program return 0; //return int to main function } void display() //display function definition { for(t=0;t<3;t++) { cout<<" "<<tic[t][0]<<" \| "<<tic[t][1]<<" \| "<<tic[t][2]<<endl; //figure formation if(t!=2) cout<<" --\|---\|--"<<endl; } } void user() //user function definition { cout<<" ENTER THE CO-ORDINATES WHERE YOU WANT TO PUT UR 'X' i.e 0,1,2 "; cin>>x>>y; if((x<0)\|\|(x>2)&&(y<0)\|\|(y>2)) //check for valid co-ordinates { cout<<" ENTER THE CORRECT CO-ORDINATES"; user(); //user function call } else { if(tic[x][y]==' ') //check for vacant space at entered co-ordinates { tic[x][y]='X'; //assigning user 'X' to the co-ordinates newdisp(); //newdisp function call } else { cout<<" THIS POSITION IS ALREADY FILLED. CHOOSE SOME OTHER CO-ORDINATES"; user(); //user function call } } d=check(); //check function call if(d==0) pc(); //pc function call else { cout<<" YOU ARE THE WINNER"; getche(); //requires enter to return to program. prevents return without display exit(1); //program termination } } void newdisp() //newdisp function definition { for(t=0;t<3;t++) { cout<<" "<<tic[t][0]<<" \| "<<tic[t][1]<<" \| "<<tic[t][2]<<endl; //displays new tictactoe after user or pc turn if(t!=2) cout<<" --\|---\|--"<<endl; } } void pc() //pc function call { int f,z; randomize(); //initialize random function calling cout<<" THIS IS THE COMPUTER'S MOVE "; for(i=0;i<=20;i++) { f=random(3); z=random(3); if(tic[f][z]==' ') //check for vacant space at entered co-ordinates { tic[f][z]='O'; //assigning pc 'O' to the co-ordinates goto x; //exiting for loop to display new tictactoe } else continue; // } x:newdisp(); //newdisp function call d=check(); //check function call if(d==0) user(); //user function call else { cout<<" I'M THE WINNER"; getche(); //requires enter to return to program. prevents return without display exit(1); //program termination } } check() //check function definition { horcheck(); //horcheck function call vercheck(); //vercheck function call diagcheck(); //diagcheck function call return (d\|\|e\|\|f); } horcheck() //horcheck function definition { if(((tic[0][0]==tic[0][1])&&(tic[0][1]==tic[0][2])&&(tic[0][1]!=' '))\|\|((tic[1][0]==tic[1][1])&&(tic[1][1]==tic[1][2])&&(tic[1][1]!=' '))\|\|((tic[2][0]==tic[2][1])&&(tic[2][1]==tic[2][2])&&(tic[2][2]!=' '))) d=1; //checks each element of a horizontal line to be same else //returns 1 if all 3 elements of any horizontal line are same d=0; //else returns 0 return d; } vercheck() //vercheck function definition { if(((tic[0][0]==tic[1][0])&&(tic[1][0]==tic[2][0])&&(tic[0][0]!=' '))\|\|((tic[0][1]==tic[1][1])&&(tic[1][1]==tic[2][1])&&(tic[0][1]!=' '))\|\|((tic[0][2]==tic[1][2])&&(tic[1][2]==tic[2][2])&&(tic[0][2]!=' '))) e=1; //checks each element of a vertical line to be same else //returns 1 if all 3 elements of any vertical line are same e=0; //else returns 0 return e; } diagcheck() //diagcheck function definition { if(((tic[0][0]==tic[1][1])&&(tic[1][1]==tic[2][2])&&(tic[0][0]!=' '))\|\|((tic[0][2]==tic[1][1])&&(tic[1][1]==tic[2][0])&&(tic[1][1]!=' '))) f=1; //checks each element of a diagonal line to be same else //returns 1 if all 3 elements of any diagonal line are same f=0; //else returns 0 return f; }

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