/*
Tic Tac Toe game - tictacto.c
Author : Shine Jacob(enot)
Email : enot06@gmail.com
This is a simple Tic Tac Toe game. I have used conio2.h that is not a part of
the C standard and not available in Dev-C++ by default. You can download it
from http://conio.sourceforge.net/ or if you wish to compile this program in
Turbo C++ IDE then replace conio2.h with conio.h.
Please let me know if you find and error or if you have any questions.
I have also attached libconio.a and conio2.h
Enjoy!
*/
#include <stdio.h>
#include <conio2.h>
#define UPARROW 72
#define DOWNARROW 80
#define LEFTARROW 75
#define RIGHTARROW 77
#define ENTER 13
#define QUIT 'q'
int _x,_y; //To track the position of the Tic Tac Toe frame being drawn
//Function to show the Tic Tac Toe Frame
void showframe(int posx, int posy)
{
int hr=196, vr=179; // These are ascii character which display the lines
int crossbr=197; // Another ascii character
int x=posx, y=posy;
int i,j;
gotoxy(35,4); cprintf("TIC TAC TOE");
gotoxy(35,5); for(i=0;i<11;i++) cprintf("%c",223);
for(i=0;i<2;i++)
{
for(j=1;j<=11;j++)
{
gotoxy(x,y);
printf("%c",hr);
x++;
}
x=posx; y+=2;
}
x=posx+3; y=posy-1;
for(i=0;i<2;i++)
{
for(j=1;j<=5;j++)
{
gotoxy(x,y);
printf("%c",vr);
y++;
}
x+=4;y=posy-1;
}
x=posx+3; y=posy;
gotoxy(x,y);
printf("%c",crossbr);
x=posx+7; y=posy;
gotoxy(x,y);
printf("%c",crossbr);
x=posx+3; y=posy+2;
gotoxy(x,y);
printf("%c",crossbr);
x=posx+7; y=posy+2;
gotoxy(x,y);
printf("%c",crossbr);
}
//Function to fill random values into the array
void fillrandom(char arr[3][3])
{
int i=0,j=0;
char ch='A';
for(i=0;i<3;i++)
{ for(j=0;j<3;j++)
{ arr[i][j] = ch; ch++; }
}
}
//Function to show the character in the specified box
void showbox(char ch, int box)
{
switch(box)
{
case 1 : gotoxy(_x+1,_y-1); printf("%c",ch); break; //1st box
case 2 : gotoxy(_x+5,_y-1); printf("%c",ch); break; //2nd box
case 3 : gotoxy(_x+9,_y-1); printf("%c",ch); break; //3rd box
case 4 : gotoxy(_x+1,_y+1); printf("%c",ch); break; //4th box
case 5 : gotoxy(_x+5,_y+1); printf("%c",ch); break; //5th box
case 6 : gotoxy(_x+9,_y+1); printf("%c",ch); break; //6th box
case 7 : gotoxy(_x+1,_y+3); printf("%c",ch); break; //7th box
case 8 : gotoxy(_x+5,_y+3); printf("%c",ch); break; //8th box
case 9 : gotoxy(_x+9,_y+3); printf("%c",ch); break; //9th box
}
}
//Function to insert the specified character into the array
void putintobox(char arr[3][3], char ch, int box)
{
switch(box)
{
case 1 : if(arr[0][0] != 'X' && arr[0][0]!= 'O')
{ arr[0][0] = ch;
showbox(ch,1);
}
break;
case 2 : if(arr[0][1] != 'X' && arr[0][1]!= 'O')
{ arr[0][1] = ch;
showbox(ch,2);
}
break;
case 3 : if(arr[0][2] != 'X' && arr[0][2]!= 'O')
{ arr[0][2] = ch;
showbox(ch,3);
}
break;
case 4 : if(arr[1][0] != 'X' && arr[1][0]!= 'O')
{ arr[1][0] = ch;
showbox(ch,4);
}
break;
case 5 : if(arr[1][1] != 'X' && arr[1][1]!= 'O')
{ arr[1][1] = ch;
showbox(ch,5);
}
break;
case 6 : if(arr[1][2] != 'X' && arr[1][2]!= 'O')
{ arr[1][2] = ch;
showbox(ch,6);
}
break;
case 7 : if(arr[2][0] != 'X' && arr[2][0]!= 'O')
{ arr[2][0] = ch;
showbox(ch,7);
}
break;
case 8 : if(arr[2][1] != 'X' && arr[2][1]!= 'O')
{ arr[2][1] = ch;
showbox(ch,8);
}
break;
case 9 : if(arr[2][2] != 'X' && arr[2][2]!= 'O')
{ arr[2][2] = ch;
showbox(ch,9);
}
break;
}//end of switch
}
//Function to show the curson on the box specified
//uses the position to check the coordinates
void gotobox(int box)
{
switch(box)
{
case 1 : gotoxy(_x+1,_y-1); break;
case 2 : gotoxy(_x+5,_y-1); break;
case 3 : gotoxy(_x+9,_y-1); break;
case 4 : gotoxy(_x+1,_y+1); break;
case 5 : gotoxy(_x+5,_y+1); break; //5th box
case 6 : gotoxy(_x+9,_y+1); break; //6th box
case 7 : gotoxy(_x+1,_y+3); break; //7th box
case 8 : gotoxy(_x+5,_y+3); break; //8th box
case 9 : gotoxy(_x+9,_y+3); break;
}
}
//Function to handle the navigation
int navigate(char arr[3][3], int box, int player, int key)
{
switch(key)
{
case UPARROW : if( (box!=1) || (box!=2) || (box!=3) )
{ box-=3; if(box<1) box = 1; gotobox(box); }
break;
case DOWNARROW : if( (box!=7) || (box!=8) || (box!=9) )
{ box+=3; if(box>9) box = 9; gotobox(box); }
break;
case LEFTARROW : if( (box!=1) || (box!=4) || (box!=7) )
{ box--; if(box<1) box = 1; gotobox(box); }
break;
case RIGHTARROW : if( (box!=3) || (box!=6) || (box!=9) )
{ box++; if(box>9) box = 9; gotobox(box); }
break;
case ENTER : if(player == 0)
putintobox(arr,'O',box);
else if(player == 1)
putintobox(arr,'X',box);
break;
}//end of switch(key)
return box;
}
int checkforwin(char arr[3][3])
{
int w=0;
/* 0,0 0,1 0,2
1,0 1,1 1,2
2,0 2,1 2,2
*/
//rows
if((arr[0][0] == arr[0][1]) && (arr[0][1] == arr[0][2])) w = 1;
else if((arr[1][0] == arr[1][1]) && (arr[1][1] == arr[1][2])) w = 1;
else if((arr[2][0] == arr[2][1]) && (arr[2][1] == arr[2][2])) w = 1;
//coloums
else if((arr[0][0] == arr[1][0]) && (arr[1][0] == arr[2][0])) w = 1;
else if((arr[0][1] == arr[1][1]) && (arr[1][1] == arr[2][1])) w = 1;
else if((arr[0][2] == arr[1][2]) && (arr[1][2] == arr[2][2])) w = 1;
//diagonal
else if((arr[0][0] == arr[1][1]) && (arr[1][1] == arr[2][2])) w = 1;
else if((arr[0][2] == arr[1][1]) && (arr[1][1] == arr[2][0])) w = 1;
return w;
}
int boxesleft(char a[3][3])
{
int i,j,boxesleft=9;
for(i=0;i<3;i++)
{ for(j=0;j<3;j++)
{ if((a[i][j] == 'X') ||(a[i][j] == 'O'))
boxesleft--;
}
}
return boxesleft;
}
int main()
{
char arr[3][3];
char player[3][30],O_OR_X[2],ch;
int x,y,turns,chance,enter,box,win,quit,winner;
int movesfinished = 0;
O_OR_X[0] = 'O'; O_OR_X[1] = 'X';
do{
textbackground(7); textcolor(0); //Set the specified background and textcolor
clrscr(); //Clears the screen - defined in conio.h(conio2.h)
_x = 35; _y = 12;
x = _x; y = _y;
showframe(x,y); //Draws the frame of Tic Tac Toe
showbox('O',1); //Displays O in box 1
showbox('X',2); //Displays X in box 2
showbox('O',3); //Displays O in box 3
showbox('X',4); //Displays X in box 4
showbox('O',5); //Displays O in box 5
showbox('X',6); //Displays X in box 6
showbox('O',7); //Displays O in box 7
showbox('X',8); //Displays X in box 8
showbox('O',9); //Displays O in box 9
gotoxy(2,18);
printf("Welcome to Tic Tac Toe");
printf("\n Rules are simple. Navigate to the box with arrow keys [%c %c %c %c] and hit enter.",30,31,17,16);
printf("\n If you try to overwrite a box, then your chance will be passed on.");
fillrandom(arr); //Filling random character to the array
printf("\n Player 1, enter your name: "); gets(player[0]); //Get player1's name
printf(" Player 2, enter your name: "); gets(player[1]); //Get player2's name
printf("\n %s, you have been given O %s, you have been given X",player[0],player[1]);
printf("\n Lets begin ( press any key )"); getch();
turns = 0; //to count the total number of turns
chance = 0; //to check whose chance is it
enter = 0; //variable to track if Enter was pressed
box = 1; //Track the current box number
win = 0; //Check if someone won
quit = 0; //Check if player wants to quit
winner = 10; //To see who is the winner
clrscr();
showframe(x,y);
while((!win))
{
gotoxy(2,20);
printf("%s(%c), its your chance. ",player[chance],O_OR_X[chance]);
while(!enter && !quit)
{
if(kbhit())
{
ch = getch();
switch(ch)
{
case UPARROW : box=navigate(arr,box,chance,UPARROW);
break;
case DOWNARROW : box=navigate(arr,box,chance,DOWNARROW);
break;
case LEFTARROW : box=navigate(arr,box,chance,LEFTARROW);
break;
case RIGHTARROW : box=navigate(arr,box,chance,RIGHTARROW);
break;
case ENTER : box=navigate(arr,box,chance,ENTER);
enter=1; break;
case QUIT : quit = 1; break;
}//end of switch(ch)
}//end of if(kbhit())
}//end of while
if(quit) break; //Quits the program
if(chance == 0)
{ putintobox(arr,box,'O'); box = 1; } //player1
else if(chance == 1)
{ putintobox(arr,box,'X'); box = 1; } //player2
if( (win = checkforwin(arr)) == 1)
winner = chance;
if(chance == 1) chance = 0;
else chance = 1;
enter = 0;
turns++;
if(!boxesleft(arr))
movesfinished = 1;
//If its a draw
if((!win) && (turns==9) && (movesfinished))
break;
}//end of while(win)
if(win)
{ gotoxy(22,22);
textbackground(4); textcolor(15);
if(winner == 0)
cprintf(" Congratulations %s, you win the game! ",player[0]);
else
cprintf(" Congratulations %s, you win the game! ",player[1]);
}
else if(quit)
{
gotoxy(10,22);
textbackground(4); textcolor(15);
cprintf(" Ok, lets play again sometime. See you later. Press any key to exit.\n\n");
getch();
return 1;
}
else if((!win) && (turns==9) && (movesfinished))
{ gotoxy(22,22);
printf("No one wins. Its a draw.");
}
printf("\n\n Do you want to play again? (Y/N): "); ch = getch();
}while(ch=='Y' || ch=='y'); //playagain
return 0;
}
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