Tic Modified

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K L University

GREEN FIELDS VADDESWARAM

GUNTUR DISTRICT

FRESHMAN ENGINEERING DEPARTMENT

I/IV B.tech

TIC TAC TOE GAMEUSING C-PROGRAMMING


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DECLARATION

We declare that project work entitled TIC TAC TOE was

carried out by us during 2012 and this work is not the same

as that of any other and has not been submitted for the

award of any other degree/diploma.

Place:

Date:


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CERTIFICATE

This is to certify that this project work TIC TAC TOE is a

bonified work carried out in the department of freshmenengineering during the year 2011-2012 by

T.Sravan Kumar (11003081),

Ch.Chaitanya (11003333),

V.Harish (11003344),

D.Satish (11003391),

T.Sundeep Babu (11003414)

HEAD OF DEPARTMENT STAFF IN-CHARGE

PROJECT GUIDE EXTERNAL EXAMINER


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ACKNOWLEDGEMENT

First we would like to convey our heart full thanks to

almighty for his blessings on us to carry out mini projectwork

without any disruption.

We are very much obliged to Dr.K.Rama Krishna,

Dean FED for permitting us to carry out our mini project work

and for providing us all support required.

We are greatly indebted to Dr. A.Srinivas Rao Head Of

Department for giving us moral support and also permitting

us to do this mini project.

We would like to convey our heart full thanks to our

Mini Project Guide D.Bala Krishna Kamesh for his guidance

and support in every step of this project.We convey our

sincere thanks to all our faculty and friends who directly or

indirectly helped us for the successful completion of ourproject.


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INDEX

1.ABSTRACT2.INTRODUCION3.SOFTWARE AND HARDWARE REQUIREMENTS4.CONTENT

5.FLOW CHART

6.SOURCE CODE7.SCREEN SHOTS

8.CONCLUSION9.BIBLOGRAPHY


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ABSTRACT

This Mini Project is to create a Tic-Tac-Toe game and

to generate it using C-Program Language. Tic Tac Toe is a very

old game, nobody knows its origin but its so simple there iseven a probability that early man had its own version of the

game. All you have to do is to get your three symbols in

straight line. Tic Tac Toe game using C is relatively easy to

program and beginners can give it a shot if they understand.

INTRODUCTION

About the Tic Tac Toe game. It is also called as Wick

Wack Woe (in some Asian countries), Noughts and

Crosses (in the British Commonwealth countries), X's and

O's in the Republic of Ireland, is a Pencil and Paper game for

two players.

X and O, who take turns marking the spaces in a 33

grid. The X player usually goes first. The player who succeeds

in placing three respective marks in a horizontal, vertical, or

diagonal row wins the game.


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Software And Hardware Requirements

Dos Box 0.74 or Turbo C++ 3.0 IDE.Intel ProcessorRAM - 2 GB (Minimum)System Type - 32 or 64 BitGraphics Card 128 MB (Minimum)

Content

1. Getting Started

2. Coding Main

3. Initializing Graphics4. Game Data
http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#2http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#2http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#3http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#3http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#4http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#4http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#5http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#5http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#5http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#4http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#3http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#2


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5. Board Initialization6. Mapping Board7. Game Engine8. Taking Input9. Checking Winner

1. Getting Started:

Go to C:\TC\Bin there you will find a executable file called TC

execute it and IDE will load itself.Now go to File Menu and choose New.Now Press F2 to save the file. Give it name tictacto.c (only 8

character filename is allowed).Now you are all set to rock. The screen should be something

like this -
http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#6http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#6http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#7http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#7http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#8http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#8http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#9http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#9http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#10http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#10http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#10http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#9http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#8http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#7http://www.cprogrammingreference.com/Tutorials/Games_Programming/TicTacToe.php#6


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2. Coding Main:First Thing a program should do is to include header files and

code main only header we will need is graphics.h and

conio.h. Including unnecessary header files increase the size

of the code and compile time. Next we create an parameter

less int returning main with no code at present. Your Code

should look like this#include #include int main ()

{return 0;


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}3. Initializing Graphics:

Now we initialise graphics in main, stop for a key press and

then close the graphics. When we stop you should see a

blank page and not any error. If you face an error make sure

your installation path is correct. All our game activity occurs

in this opening and closing of graphics. It will generally give

you a 640*480 mode with VGA graphics. These graphics are

good enough to code any descent looking games. If you getdifferent settings try to set them as above. Your code should

be now -

4. Game Data:Now we create data your game needs. In this game we need

following data -

We need 2D 3 X 3 Matrix to Store the board. Each member of

the board contains one the three values -'O' if there is a zero at that place.'X' if there is a cross at that place'*' if there is no element at that place i.e. placed has not yet

been filled.

5. Board Initialization:

Now we create a function which initializes the entire board to

'*'.

This indicates that no block is filled.


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We use a function called initiateboard called in main to do

this job for us.6. Mapping Board:

This is a very important function in our program. Its job is to

create a graphical image of the game form the data array

board.It first clears all the graphics on the present screen.Then its initiate the graphics and re draw the entire screen.First the function draws the border lines. Then it draws a

cross, a circle or nothing depending upon the values in the

array.It uses function drawcircle and drawcross to draw circles and

cross respectively. These functions take input value 0 to 9

depending upon the array position to decide what to draw.This function is first called in initialisation but will be called

several times

Here some screenshot of the game developed till now -


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7. Game Engine:Now we design a game engine for this game. This Game

engine will contain a which end after 5 Users moves

assuming user moves first. Now our game engine must do

the following jobs in one sequence.1. Take user input.2. Place user move on board.3. Calculate computer move.4. Place computer move on board.5. Refresh Screen for next round.6. Check whether there is a winner.

We use function play to be name of our game engine and

game exits when the function exits. This function is called

once in main.

Now we have designed mapboard function in such a way that

it can be used to refresh screen and can do the 5th job. We

discuss the rest next.

8. Taking Input:We create a function name input which does the first two

jobs of our game engine. It takes user input and if valid place

that on to the data.


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User is asked to input X coordinate (1 - 3) and Y coordinate (1

- 3).If in our data board [X-1] and [Y-1] position is '*' then weplace a 'X' There otherwise reprompt for input.Here is a screenshot of the Game Developed Till Now

Coding Now Becomes:

#include#include

#include

#include

char board [3] [3];

void drawcircle (int position)

{

int centrex;int centrey;

centrex = 245 + (50*(position%3)) + 25;

centrey = 165 + (50*(position/3)) + 25;

fillellipse (centrex,centrey, 10,10);

}

void drawcross (int position)

{


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int centrex;

int centrey;

centrex = 245 + (50*(position%3)) + 25;

centrey = 165 + (50*(position/3)) + 25;line (centrex-5,centrey+5,centrex+5,centrey-5);

line (centrex+5,centrey+5,centrex-5,centrey-5);

}

void mapboard ()

{

int gdriver = DETECT, gmode;

int i,j;

closegraph ();

initgraph (&gdriver, &gmode, "c:\\bgi");

// Draw 4 Lines to Form Board

line (295,165,295,315);

line (345,165,345,315);

line (245,215,395,215);

line (245,265,395,265);

for (i = 0; i


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for (i=0;i


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printf ("\n Enter X Coordinate - ");

scanf ("%d",&x);

printf ("\n Enter Y Coordinate - ");

scanf ("%d", &y);if (board [x-1] [y-1] == '*')

{

board [x-1] [y-1] = 'O';

}

else

{

mapboard ();

printf ("\n draw");

}

}

void computer ()

{

int i,j;

for (i = 0; i < 3; i++)

for (j = 0; j < 3; j++)

{

if (board [i] [j] == '*')

{

board [i] [j] = 'O';

return;}

}

}

void check ()

{

int i;

char key = '*';


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// Check Rows

for (i=0; i


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// Check Rows

for (i=0; i


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{

input ();

computer ();

mapboard ();check ();

}

printf ("\n GAME DRAW");

}

void play2 ()

{

int i,j;

for (i = 0; i


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switch(ch)

{

case 1:initiateboard ();

play ();break;

case 2:initiateboard ();

play2();

break;

}

getch ();

closegraph ();

return 0;

}

9. Checking Winner:

Now last thing our gameengine must do is to see whether wehave a winner or not.

This function use a flag variable key (arbitary name) which is

initialise to '*'

Then our function checks all possible combination of winning

and if it finds a character other than '*' in series of 3 it setskey value to it.

Then we calculate whether player wins, computer wins or

nobody wins and game is still on.

Now here is the final code of this version -

void mapboard ()


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{

int gdriver = DETECT, gmode;

int i,j;

closegraph ();initgraph (&gdriver, &gmode, "c:\\bgi");

// Draw 4 Lines to Form Board

line (295,165,295,315);

line (345,165,345,315);

line (245,215,395,215);

line (245,265,395,265);

for (i = 0; i


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mapboard ();

}

void input ()

{int x,y;

printf ("nEnter X Coordinate - ");

scanf ("%d",&x);

printf ("nEnter Y Coordinate - ");

scanf ("%d",&y);

if (board [x-1] [y-1] == '*')

{

board [x-1] [y-1] = 'X';

}

else

{

mapboard ();

printf ("\n Wrong Coordinates");

input ();

}

}

void input2 ()

{

int x,y;

printf ("\n Enter X Coordinate - ");scanf ("%d",&x);

printf ("\n Enter Y Coordinate - ");

scanf ("%d", &y);

if (board [x-1] [y-1] == '*')

{

board [x-1] [y-1] = 'O';

}


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else

{

mapboard ();

printf ("\n draw");}

}

void computer ()

{

int i,j;

for (i = 0; i < 3; i++)

for (j = 0; j < 3; j++)

{

if (board [i] [j] == '*')

{

board [i] [j] = 'O';

return;

}

}

}

void check ()

{

int i;

char key = '*';

// Check Rowsfor (i=0; i


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// Check Diagonals

if (board [0][0] == board [1] [1] && board [1][1] == board [2]

[2] && board [1] [1] != '*') key = board [1] [1];

if (board [0][2] == board [1] [1] && board [1][1] == board [2][0] && board [1] [1] != '*') key = board [1] [1];

//Declare Winner if any

if (key == 'X')

{

printf ("You Win");

getch ();

exit (0);

}

if (key == 'O')

{

printf ("Computer Win");

getch ();

exit (0);

}

}

void check2 ()

{

int i;

char key = '*';

// Check Rowsfor (i=0; i


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// Check Diagonals

if (board [0][0] == board [1] [1] && board [1][1] == board [2]

[2] && board [1] [1] != '*') key = board [1] [1];

if (board [0][2] == board [1] [1] && board [1][1] == board [2][0] && board [1] [1] != '*') key = board [1] [1];

//Declare Winner if any

if (key == 'X')

{

printf ("player1 Win");

getch ();

exit (0);

}

if (key == 'O')

{

printf ("player2 Win");

getch ();

exit (0);

}

}

void play ()

{

int i;

for (i = 0; i


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void play2 ()

{

int i,j;

for (i = 0; i


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}

getch ();

closegraph ();

return 0;}

Flow Chart


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SCREEN SHOTS

Player selection

Player must enter the co-ordinates


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After entering the co-ordinates, its computers turn to place

its position. Again its players turn to place a position.


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Next its computers turn and after its players turn.


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Now its a chance for the player to win, if he places the

symbol in the respective 3rd

X and Y co-ordinates.


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Player WINS !!!


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CONCLUSION

Tic-tac-toe is a trivial game, a fact which cannot be changed

by playing it on more dimensions or a bigger playing field.Given a reasonable heuristic and sufficient search depth,

minimax will converge to perfect play that is, games result

either in a draw or in the first player winning. It can be

concluded that the first player has a clear advantage,

because each move will improve its position. Higher search

depths improve the chances of winning, provided a properheuristic is used.

BIBLIOGRAPHY

ANSI C Bala Guruswamy

www.wikipedia.com

Tic Modified

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