CARRR.CPP

    #include<iostream.h>
    #include<conio.h>
    #include<dos.h>
    #include<stdlib.h>
    #include<graphics.h>
    #define LEFT 75
    #define RIGHT 77
    #define UP 72
    #define DOWN 80
    #define ENTER 13
    class CAR
    {
	public:
	int  cp, init, op1, op2, op3; //initializing car,and obstacles
	CAR::CAR()     //creating constructor for the class car
	{

	    cp = 300;   //putting car value at 300
	    init = 0;
	    op1 = 0;  //1st obstacle starts from 0
	    op2 = -20; //2nd obstacle starts 20 behind the 1st obstacle
	    op3 = -40; //3rd one starts 40 behind the 1st one
	}
    }
    car;     //object
    int randx( void ) //creating function for random obstacle appearance
    {
	int x = random( 55*8  );//using random function to choose a random valuefor random obstacle
	if ( x < 25*8 )//if the x axis distance is less then 25 the obstacle lies outside the lane
	{
	x = x + ( 25 *8 );//so we add 25 to keep the values in the lane
	}
	return ( x );
    }
    void right() //this is called to perform right dirn movement
    {
	if ( car.cp < 420 ) //here the class object is compared
	{
	car.cp += 10;//to move the car from 10 dirn
	}
	return ;
    }
    void left()     //this is for left dirn
    {
	if ( car.cp > 180 )  //for left movement
	{
	car.cp -= 10;
	}
	return ;
}
    void bgmove() //car body and its movement
    {
	if ( car.init > 5 )
	{
	car.init = 1;//init set to one
	}
	setcolor( RED );  //car body
	setfillstyle( SOLID_FILL,WHITE );//fills the block into colour assigned
	sector( car.cp + 20, 330, 0, 180, 20, 30 );//formation of ellipse head of car
	setfillstyle( SOLID_FILL,RED );
	bar3d( car.cp, 333, car.cp + 37, 360, 4, 4 );//function to create a block i.e. looks as a cube
	for ( int i = car.init;i < 70;i += 5 )//for the design of lane
	{
	setcolor(BLUE );
	setfillstyle( 1, BLUE );
	bar( 16 * 8, i * 8, 20 * 8, ( i + 2 ) * 8 );//creating walls forming at side of road
	bar( 60 * 8, i * 8, 64 * 8, ( i + 2 ) * 8 );
	}
	return ;
    }
    void opp1( int x1 )//obstacle 1
    {
	if ( car.op1 < 600 )
	{
	car.op1 += 10;
	setfillstyle( 1, RED );
	bar3d( x1, car.op1, x1 + 30, car.op1 + 30, 2, 3 );
	}
	else
	{
	car.op1 = 0;
	}
	return ;
    }
    void opp2( int x2 )//obstacle 2
    {
	if ( car.op2 < 600 )
	{
	car.op2 += 10;
	setfillstyle( 1, YELLOW );
	bar3d( x2, car.op2, x2 + 30, car.op2 + 30, 2, 3 );
	}
	else
	{
	car.op2 = 0;
	}
	return ;
    }
    void opp3( int x3 ) //obstacle 3
    {
	if ( car.op3 < 600 )
	{
	car.op3 += 10;
	setfillstyle( 1, BLUE );
	bar3d( x3, car.op3, x3 + 30, car.op3 + 30, 2, 3 );
	}
	else
	{
	car.op3 = 0;
	}
	return ;
    }
    int check( int x, int op, int cp ) //collision part
    {
	int a[ 31 ], b[ 31 ], c[ 40 ], d[ 50 ];//let the sizes randomly or just let according to loop
	for ( int i = 0;i < 30;i++ )
	{
	a[ i ] = x + i; //random value suppled + i using loop
	}
	for ( i = 0;i < 30;i++ )
	{
	b[ i ] = op + i;//returned obstacle value
	}
	for ( i = 0;i < 40;i++ )
	{
	c[ i ] = cp + i;  //returned car value
	}

	for ( i = 0;i < 50;i++ )
	{
	d[ i ] = 300 + i; //
	}
	for ( i = 0;i < 40;i++ )
	{
	for ( int j = 0;j < 50;j++ )
	{
	    for ( int k = 0;k < 30;k++ )
	    {
		if ( a[ k ] == c[ i ] && b[ k ] == d[ j ] )
		    return 1;
	    }
	}
	}
	return 0;
    }
    void logo ()
    {
	for ( int i = 1;i < 250;i++ ) //for the introduction part
	{
	int p;
	setcolor( YELLOW );
	setfillstyle( SOLID_FILL, LIGHTBLUE );
	settextstyle( 7, HORIZ_DIR, 5 );
	outtextxy( 65, 100,"HCOE GRAPHICS PROJECT" );
	outtextxy(150,150 ,"  RACING GAME " );
	outtextxy(150,200,"   070 BCT B ");
	setcolor( WHITE );
	settextstyle( 2, HORIZ_DIR, 5 );
	outtextxy(150,250, "PRESENTED TO : DEPARTMENT OF ELECTRONICS AND COMPUTER " );
	outtextxy(150,300, "PRESENTED BY : ROLL NOS (48,50,52,57,64)");
	}
	delay( 2000 );
	cleardevice();
	return ;
    }
    void over( void )//after collision this is to show the game over
    {
	for ( int i = 1;i < 35;i++ )
	{
	cleardevice();
	delay( 20 );
	settextstyle( 1, 0, 6 );
	setcolor( RED );
	outtextxy( 150, 100, "!!!GAME OVER!!!" );
	delay( 20 );
	}
	delay( 2000 );
	cleardevice();
	getch();
	return ;
    }
    void about()  //menu part and control the menu
    {

	while ( !kbhit() )
	{
	for ( int i = 300;kbhit() == 0;i++ )
	{
	    cleardevice();
	    setcolor( 6 );
	    settextstyle( 2, 0, 6 );
	    outtextxy( 600 - i, 600 - i, "season maharjan(48)" );
	    outtextxy( i - 150, 215, "yaju shrestha(64)" );
	    outtextxy( i - 30, i - 130, "smriti mool(52)" );
	    outtextxy( 600 - i, i - 150, "shiwangi shrestha(50)" );
	     outtextxy( 600 -i, i -300 , "sushmita chaurasia(57)" );
	    setfillstyle( 1, 4 );
	    setcolor( 1 );
	    settextstyle( 2, 0, 10 );
	    outtextxy( 280, 380, "HCOE" );
	    outtextxy( 215, 420, "O70 BATCH" );
	    delay( 60 );
	}
	}
	getch();
	return ;
    }
    int play( void )//if the play is entered by user
    {
	int life = 1, m, x1, x2, x3, s;//assigning values for life, m for selection
	//x1,x2,x3 for random values from the randx function
    re:
	while ( life ) //check the life value to enter the while loop
	{
	cleardevice();
	if ( car.op1 == 0 ) //
	{
	    x1 = randx();//getting the random values
	    car.op1++;//calling the obstacle in class and incrementing
	}
	else
	{
	    opp1( x1 );//if not equal to zero print the obstacle
	}
	if ( car.op2 == 0 )//for obstacle 2
	{
	    x2 = randx();
	    car.op2++;
	}
	else if ( car.op2 < 1 )  //for obstacle valueless than 1
	{
	car.op2++;
	}
	else
	{
	    opp2( x2 );
	}
	if ( car.op3 == 0 ) //for obstacle no 3
	{
	    x3 = randx();
	    car.op3++;
	}
	else if ( car.op3 < 1 )
	{car.op3++;}
	else
	{
	    opp3( x3 );
	}
	setcolor( 10 );
	bgmove();     //calling move function for car to appearin sceen
	if ( check( x2, car.op2, car.cp ) || check( x1, car.op1, car.cp ) || check( x3, car.op3, car.cp ) )
	{                           //checking the collision condition from the check function
	    life--;
	    if ( life == 0 )
	    {
		over();//calling the over fuction for finishing the game
	    }
	    car.op1 = 1; //initializing the obstacle
	    car.op2 = -16;
	    car.op3 = -32;
	    goto re;//using goto to repeat the processes always
	}
	if ( kbhit() )//check the key stroke
	{
	    m = getch();
	    switch ( m ) //key stroke decision using switch case
	    {
	    case LEFT: left();//for left arrow
		break;
	    case RIGHT: right(); //for right arrow key
		break;
	    case 'q': exit( 0 ); //to exit the game when ever the user want to
	    }
	}
	else
	{
	    delay( 100 );
	}
	}
	getch();
	return ( 0 );
    }
    void menu()//for the menu appearance
    {
	int s = 1, t = 0, a, p = 140;//here s is for keystroke selection in switch case
      do//to contiue the program after finish
	{           //here a is for the rectangle to move up and down
	do          //p for rectangle use in menu
	{
	    cleardevice();
	    setcolor( YELLOW );
	    settextstyle( 1, 0, 4 );
	    outtextxy( 230, 30, "MENU" );
	   // setfillstyle( 1, 2 );
	    settextstyle( 1, 0, 1 );
	    setcolor( 10 );
	    outtextxy( 220, 137, "PLAY GAME" );
	    outtextxy( 220,167, "DEVELOPERS" );
	    outtextxy( 220,197, "EXIT" );
	    setcolor( RED );
	    rectangle( 200, p, 350, p + 20 );//for rectangle using rectangle funcn
	    a = getch();
	    switch ( a ) //for up and down movemen if rectangle using keyboard
	    {
	    case UP: if ( p > 140 )
		{
		    p -= 30;
		    s--;

		}
		break;
	    case DOWN: if ( p < 180 )
		{
		    p += 30;
		    s++;
		};
		break;
	    case ENTER: a = 1;
		break;
	    default: break;
	    }
	}
	while ( a != 1 );//check the click of enter by checking the value of a
	switch ( s )//for the functions call on press on menu to play
	{
	case 1: play();
		 break;
	case 2: about();
		  break;
	case 3: exit( 0 );
		 break;
	}
	}
	while ( t == 0 ); //here t works for the continuity bringing value after the game is over
     }
  void main()
    {
	int gdriver = DETECT, gmode;
	initgraph( &gdriver, &gmode, "C:\\TC\\bgi" );
	cleardevice();
	logo();
	menu();
	getch();
    }