A Snake Game in Visual C++ Source Code

A basic Snake game in Visual C++ can be created using the Windows API and C++ programming language. The code for the game typically includes the following elements:

Initialization of the game window: This involves creating a window using the CreateWindow function and setting its properties such as the size, position, and title.
Handling user input: The game logic is controlled by the user’s input using the arrow keys. This is typically done using the GetAsyncKeyState function to detect key presses and the TranslateMessage function to translate virtual-key messages into character messages.
Game loop: The game loop is responsible for updating the game state, checking for collisions, and redrawing the window. This is done using the PeekMessage and DispatchMessage functions to handle events and the InvalidateRect function to redraw the window.
Drawing the game elements: The snake, food, and walls are typically drawn using the GDI functions such as the Rectangle and Ellipse functions.
Scoring: The player’s score is typically incremented when the snake eats a piece of food and displayed on the screen.

It’s important to note that this is a high level overview of what a basic Snake game in Visual C++ would look like. The actual implementation would be more complex and there would be many more details to consider.


/*  SNAKE GAME PROGRAM */




/*************************************************

Application: Snake Game
Compiled on: Visual Studio 2013
Programmer : Manish Kumar
OS         : Window 98,2000,XP
             Vista,Windows7

***************************************************/




/* Declaration of Header Files */

#include "stdio.h"
#include "conio.h"
#include "stdlib.h"
#include "dos.h"
#include "time.h"
#include "windows.h"
#include "string.h"

#define right 0
#define left 1
#define up 2
#define down 3


/* Global Declaration */

int x[100], y[100], i, length = 6, score = 0, l_k = right, eat = 0, xf, yf;
char ch;

/* Declaration of Functions */

void Food(void);
void Food1(void);
void Food2(void);
void rectangle(int x, int y, int l, int b);
void fillcolor(int x1, int y1, int x2, int y2);
void rectangle1(int x, int y, int l, int b);
void Level1(void);
void Level2(void);
void Level3(void);
void Level4(void);
void Instruction(void);
void Start(void);
void gotoxy(int x, int y);
COORD coord = { 0, 0 };

void main()
{
	system("cls");
	Start();
	Instruction();
	Level1();
	_getch();
}
/* Level 2 */

void Level2(void)
{
	
	system("cls");
	/* Positioning the snake initally */

	for (i = length - 1; i >= 0; i--)
	{
		x[i] = 25 - i;
		y[i] = 15;
	}

	/*************************************/
    START:
	
	gotoxy(65, 3);
	printf("%c",219);
	rectangle(1, 1, 60, 24);
	rectangle1(63, 13, 78, 18);
	rectangle1(63, 1, 78, 6);
	rectangle1(63, 7, 78, 12);
	rectangle1(63, 19, 78, 24);
	
	gotoxy(66, 3);
	printf("SNAKE GAME%c",219);
	gotoxy(67, 8);
	printf(" LEVEL ");
	gotoxy(70, 10);
	printf("2");
	gotoxy(67, 14);
	printf(" SCORE ");
	gotoxy(65, 3);

	/*********************************/



	while (1)  /* Infinite Loop    */
	{
		while (_kbhit() == 0) /* Do Nothing */
		{
			gotoxy(69, 16);
			printf("%d", score);
			
			for (i = length - 1; i>0; i--)
			{
				x[i] = x[i - 1];
				y[i] = y[i - 1];
			}
			/* Snake Structure */

			for (i = length - 1; i >= 0; i--)
			{
				gotoxy(x[i], y[i]);
				printf("0");
			}
			gotoxy(x[0], y[0]);
			printf("#");
			gotoxy(x[length - 1], y[length - 1]);
			printf(" ");
			Food();
			if (l_k == right || l_k == left)
			{
				Sleep(80);
			}
			if (l_k == up || l_k == down)
			{
				Sleep(130);
			}
			/* Hit the Wall */

			if (x[0] == 1 || x[0] == 60 || y[0] == 1 || y[0] == 24)
			{
				Sleep(1000);
				gotoxy(65, 21);
				printf("  GAME OVER  ");
				gotoxy(65, 3);
				Sleep(1000);
				system("cls");
				exit(0);
			}
			if (l_k == right)
			{
				x[0]++;
			}
			if (l_k == left)
			{
				x[0]--;
			}
			if (l_k == up)
			{
				y[0]--;
			}
			if (l_k == down)
			{
				y[0]++;
			}
			/* Hit yourself */
			for (i = length - 1; i>1; i--)
			{
				if (x[0] == x[i] && y[0] == y[i])
				{
					
					Sleep(1000);
					gotoxy(65, 21);
					printf("  GAME OVER  ");
					gotoxy(65, 3);
					Sleep(1000);
					system("cls");
					exit(0);
				}
			}
		}
		ch = _getch();
		if (ch == 32)
		{
		
			gotoxy(65, 21);
			printf("%c PAUSED... %c",219,219);
			while (_kbhit() == 0)
				gotoxy(65, 21);
			printf("  ");
			
			system("cls");
			goto START;
		}
		if (ch == 27)
		{
			
			Sleep(1000);
			gotoxy(65, 21);
			printf(" GAME OVER ");
			gotoxy(65, 3);
			Sleep(1000);
			system("cls");
			exit(0);
		}
		else if (ch == 72 && l_k != down)
			l_k = up;
		else if (ch == 80 && l_k != up)
			l_k = down;
		else if (ch == 77 && l_k != left)
			l_k = right;
		else if (ch == 75 && l_k != right)
			l_k = left;
		gotoxy(65, 3);
		if (score == 180)
		{
			Sleep(30);
			system("cls");
			gotoxy(27, 12);
			printf("Level 2 has been completed.");
			Sleep(2000);
			Level3();
		}
	}
}

/* Level 1 */

void Level1(void)
{
	system("cls");

	/* Positioning the snake initally */

	for (i = length - 1; i >= 0; i--)
	{
		x[i] = 25 - i;
		y[i] = 15;
	}

	/*************************************/
    START:
	
	gotoxy(65, 3);
	printf("%c",219);
	rectangle1(1, 1, 60, 24);
	rectangle1(63, 13, 78, 18);
	rectangle1(63, 1, 78, 6);
	rectangle1(63, 7, 78, 12);
	rectangle1(63, 19, 78, 24);
	
	gotoxy(66, 3);
	printf("SNAKE GAME%c",219);
	gotoxy(67, 8);
	printf(" LEVEL ");
	gotoxy(70, 10);
	printf("1");
	gotoxy(67, 14);
	printf(" SCORE ");
	gotoxy(65, 3);

	/*********************************/



	while (1)  /* Infinite Loop    */
	{
		while (_kbhit() == 0) /* Do Nothing */
		{
			gotoxy(69, 16);
			printf("%d", score);
			
			for (i = length - 1; i>0; i--)
			{
				x[i] = x[i - 1];
				y[i] = y[i - 1];
			}
			/* Snake Structure */

			for (i = length - 1; i >= 0; i--)
			{
				gotoxy(x[i], y[i]);
				printf("0");
			}
			gotoxy(x[0], y[0]);
			printf("#");
			gotoxy(x[length - 1], y[length - 1]);
			printf(" ");
			Food();
			if (l_k == right || l_k == left)
			{
				Sleep(80);
			}
			if (l_k == up || l_k == down)
			{
				Sleep(130);
			}
			/****************************/
			rectangle1(1, 1, 60, 24);
			gotoxy(65, 3);
			if (x[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 59;
			}
			if (x[0] == 60)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 2;
			}
			if (y[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 23;
			}
			if (y[0] == 24)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 2;
			}
			/*******************************/

			if (l_k == right)
			{
				x[0]++;
			}
			if (l_k == left)
			{
				x[0]--;
			}
			if (l_k == up)
			{
				y[0]--;
			}
			if (l_k == down)
			{
				y[0]++;
			}
			/* Hit yourself */
			for (i = length - 1; i>1; i--)
			{
				if (x[0] == x[i] && y[0] == y[i])
				{
					
					Sleep(1000);
					gotoxy(65, 21);
					printf("  GAME OVER  ");
					gotoxy(65, 3);
					Sleep(1000);
					system("cls");
					exit(0);
				}
			}
		}
		ch = _getch();
		if (ch == 32)
		{
			
			gotoxy(65, 21);
			printf("%c PAUSED... %c",219,219);
			while (_kbhit() == 0)
				gotoxy(65, 21);
			printf("  ");
			
			system("cls");
			goto START;
		}
		if (ch == 27)
		{
			
			Sleep(1000);
			gotoxy(65, 21);
			printf(" GAME OVER ");
			gotoxy(65, 3);
			Sleep(1000);
			exit(0);
		}
		else if (ch == 72 && l_k != down)
			l_k = up;
		else if (ch == 80 && l_k != up)
			l_k = down;
		else if (ch == 77 && l_k != left)
			l_k = right;
		else if (ch == 75 && l_k != right)
			l_k = left;
		gotoxy(65, 3);
		if (score == 90)
		{
			Sleep(30);
			system("cls");
			gotoxy(27, 12);
			printf("Level 1 has been completed.");
			Sleep(2000);
			Level2();
		}
	}
}


/* Level 3 */

void Level3(void)
{
	int t;
	
	system("cls");

	/* Positioning the snake initally */

	for (i = length - 1; i >= 0; i--)
	{
		x[i] = 25 - i;
		y[i] = 15;
	}

	/*************************************/
    START:
	
	gotoxy(65, 3);
	printf("%c",219);
	rectangle1(1, 1, 60, 24);
	rectangle1(63, 13, 78, 18);
	rectangle1(63, 1, 78, 6);
	rectangle1(63, 7, 78, 12);
	rectangle1(63, 19, 78, 24);
	for (t = 10; t <= 50; t++) { gotoxy(t, 6); printf("_"); gotoxy(t, 12); printf("_"); gotoxy(t, 18); printf("_"); } gotoxy(66, 3); printf("SNAKE GAME%c",219); gotoxy(67, 8); printf(" LEVEL "); gotoxy(70, 10); printf("3"); gotoxy(67, 14); printf(" SCORE "); gotoxy(65, 3); /*********************************/ while (1) /* Infinite Loop */ { while (_kbhit() == 0) /* Do Nothing */ { gotoxy(69, 16); printf("%d", score); for (i = length - 1; i>0; i--)
			{
				x[i] = x[i - 1];
				y[i] = y[i - 1];
			}
			/* Snake Structure */

			for (i = length - 1; i >= 0; i--)
			{
				gotoxy(x[i], y[i]);
				printf("0");
			}
			gotoxy(x[0], y[0]);
			printf("#");
			gotoxy(x[length - 1], y[length - 1]);
			printf(" ");
			Food1();
			if (l_k == right || l_k == left)
			{
				Sleep(80);
			}
			if (l_k == up || l_k == down)
			{
				Sleep(130);
			}
			/****************************/
			rectangle1(1, 1, 60, 24);
			gotoxy(65, 3);
			if (x[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 59;
			}
			if (x[0] == 60)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 2;
			}
			if (y[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 23;
			}
			if (y[0] == 24)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 2;
			}
			/********* Hits The Wall **********/
			if ((x[0] >= 10 && x[0] <= 50 && y[0] == 6) || (x[0] >= 10 && x[0] <= 50 && y[0] == 12) || (x[0] >= 10 && x[0] <= 50 && y[0] == 18)) { Sleep(1000); gotoxy(65, 21); printf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } /*******************************/ if (l_k == right) { x[0]++; } if (l_k == left) { x[0]--; } if (l_k == up) { y[0]--; } if (l_k == down) { y[0]++; } /* Hit yourself */ for (i = length - 1; i>1; i--)
			{
				if (x[0] == x[i] && y[0] == y[i])
				{
					
					Sleep(1000);
					gotoxy(65, 21);
					_cprintf("  GAME OVER  ");
					gotoxy(65, 3);
					Sleep(1000);
					system("cls");
					exit(0);
				}
			}
		}
		ch = _getch();
		if (ch == 32)
		{
			
			gotoxy(65, 21);
			printf("%c PAUSED... %c",219,219);
			while (_kbhit() == 0)
				gotoxy(65, 21);
			printf("  ");
			
			system("cls");
			goto START;
		}
		if (ch == 27)
		{
			
			Sleep(1000);
			gotoxy(65, 21);
			printf(" GAME OVER ");
			gotoxy(65, 3);
			Sleep(1000);
			system("cls");
			exit(0);
		}
		else if (ch == 72 && l_k != down)
			l_k = up;
		else if (ch == 80 && l_k != up)
			l_k = down;
		else if (ch == 77 && l_k != left)
			l_k = right;
		else if (ch == 75 && l_k != right)
			l_k = left;
		gotoxy(65, 3);
		if (score == 270)
		{
			Sleep(30);
			system("cls");
			gotoxy(27, 12);
			printf("Level 3 has been completed.");
			Sleep(2000);
			Level4();
		}
	}
}

/* Level 4 */

void Level4(void)
{
	int t;
	
	system("cls");

	/* Positioning the snake initally */

	for (i = length - 1; i >= 0; i--)
	{
		x[i] = 45 - i;
		y[i] = 15;
	}

	/*************************************/
    START:
	
	gotoxy(65, 3);
	printf("%c",219);
	rectangle1(1, 1, 60, 24);
	rectangle1(63, 13, 78, 18);
	rectangle1(63, 1, 78, 6);
	rectangle1(63, 7, 78, 12);
	rectangle1(63, 19, 78, 24);
	for (t = 5; t <= 12; t++)
	{
		gotoxy(10, t);
		printf("%c",179);
		gotoxy(50, t);
		printf("%c",179);
	}
	for (t = 17; t <= 21; t++)
	{
		gotoxy(20, t);
		printf("%c",179);
	}
	for (t = 40; t <= 55; t++)
	{
		gotoxy(t, 18);
		printf("%c",95);
	}
	for (t = 20; t <= 40; t++) { gotoxy(t, 7); printf("%c",95); } gotoxy(66, 3); printf("SNAKE GAME%c",219); gotoxy(67, 8); printf(" LEVEL "); gotoxy(70, 10); printf("4"); gotoxy(67, 14); printf(" SCORE "); gotoxy(65, 3); /*********************************/ while (1) /* Infinite Loop */ { while (_kbhit() == 0) /* Do Nothing */ { gotoxy(69, 16); _cprintf("%d", score); for (i = length - 1; i>0; i--)
			{
				x[i] = x[i - 1];
				y[i] = y[i - 1];
			}
			/* Snake Structure */

			for (i = length - 1; i >= 0; i--)
			{
				gotoxy(x[i], y[i]);
				printf("0");
			}
			gotoxy(x[0], y[0]);
			printf("#");
			gotoxy(x[length - 1], y[length - 1]);
			printf(" ");
			Food2();
			if (l_k == right || l_k == left)
			{
				Sleep(80);
			}
			if (l_k == up || l_k == down)
			{
				Sleep(130);
			}
			/****************************/
			rectangle1(1, 1, 60, 24);
			gotoxy(65, 3);
			if (x[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 59;
			}
			if (x[0] == 60)
			{
				rectangle1(1, 1, 60, 24);
				x[0] = 2;
			}
			if (y[0] == 1)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 23;
			}
			if (y[0] == 24)
			{
				rectangle1(1, 1, 60, 24);
				y[0] = 2;
			}
			/*************** Hits  the Wall *******************/

			if ((x[0] == 10 && (y[0] >= 5 && y[0] <= 12)) || (x[0] == 50 && (y[0] >= 5 && y[0] <= 12)) || (x[0] == 20 && (y[0] >= 17 && y[0] <= 21))) { Sleep(1000); gotoxy(65, 21); _cprintf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } if (((x[0] >= 40 && x[0] <= 55) && y[0] == 18) || ((x[0] >= 20 && x[0] <= 40) && y[0] == 7)) { Sleep(1000); gotoxy(65, 21); _cprintf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } /*******************************/ if (l_k == right) { x[0]++; } if (l_k == left) { x[0]--; } if (l_k == up) { y[0]--; } if (l_k == down) { y[0]++; } /* Hit yourself */ for (i = length - 1; i>1; i--)
			{
				if (x[0] == x[i] && y[0] == y[i])
				{
					
					Sleep(1000);
					gotoxy(65, 21);
					_cprintf("  GAME OVER  ");
					gotoxy(65, 3);
					Sleep(1000);
					system("cls");
					exit(0);
				}
			}
		}
		ch = _getch();
		if (ch == 32)
		{
			
			gotoxy(65, 21);
			printf("%c PAUSED... %c",219,219);
			while (_kbhit() == 0)
				gotoxy(65, 21);
			printf("  ");
			
			system("cls");
			goto START;
		}
		if (ch == 27)
		{
			
			Sleep(1000);
			gotoxy(65, 21);
			_cprintf(" GAME OVER ");
			gotoxy(65, 3);
			Sleep(1000);
			system("cls");
			exit(0);
		}
		else if (ch == 72 && l_k != down)
			l_k = up;
		else if (ch == 80 && l_k != up)
			l_k = down;
		else if (ch == 77 && l_k != left)
			l_k = right;
		else if (ch == 75 && l_k != right)
			l_k = left;
		gotoxy(65, 3);
	}
}

void Food(void)
{
	if (eat == 0)
	{
		srand(time(NULL));  /* Initializes random number generator  */
		xf = (rand() % (20)) + 4;  /* Generates random number */
		yf = (rand() % (21)) + 3;
		eat = 1;
	}
	if ((xf == 1 || xf == 60) || (yf == 1 || yf == 24))
	{
		xf = 3;
		yf = 3;
	}
	gotoxy(xf, yf);
	printf("*");
	gotoxy(65, 3);
	if ((xf == x[0]) && (yf == y[0]))
	{
		
		score = score + 9;
		length++;
		eat = 0;
	}
}

void Food1(void)
{
	if (eat == 0)
	{
		srand(time(NULL));  /* Initializes random number generator  */
		xf = (rand() % (20)) + 4;  /* Generates random number */
		yf = (rand() % (21)) + 3;
		eat = 1;
	}
	if ((xf >= 10 && xf <= 50 && yf == 6) || (xf >= 10 && xf <= 50 && yf == 12) || (xf >= 10 && xf <= 50 && yf == 18) || (xf == 1 || xf == 60) || (yf == 1 || yf == 24)) { xf = 5; yf = 3; } gotoxy(xf, yf); printf("*"); gotoxy(65, 3); if ((xf == x[0]) && (yf == y[0])) { score = score + 9; length++; eat = 0; } } void Food2(void) { if (eat == 0) { srand(time(NULL)); /* Initializes random number generator */ xf = (rand() % (20)) + 4; /* Generates random number */ yf = (rand() % (21)) + 3; eat = 1; } if ((xf == 1 || xf == 60) || (yf == 1 || yf == 24)) { xf = 6; yf = 3; } if ((xf == 10 && (yf >= 5 && yf <= 12)) || (xf == 50 && (yf >= 5 && yf <= 12)) || (xf == 20 && (yf >= 17 && yf <= 21))) { xf = 5; yf = 2; } if (((xf >= 40 && xf <= 55) && yf == 18) || ((xf >= 20 && xf <= 40) && yf == 7))
	{
		xf = 3;
		yf = 2;

	}



	gotoxy(xf, yf);
	printf("*");
	gotoxy(65, 3);
	if ((xf == x[0]) && (yf == y[0]))
	{
		
		score = score + 9;
		length++;
		eat = 0;
	}
}

void Start(void)
{
	system("cls");
	fillcolor(3, 3, 76, 23);
	rectangle(2, 2, 78, 24);
	rectangle(3, 2, 77, 24);
	
	gotoxy(35, 5);
	printf(" SNAKE GAME ");
	gotoxy(30, 10);
	printf("Designed and Programmed by:");
	gotoxy(35, 14);
	printf("Manish Kumar");
	gotoxy(35,16);
	printf("Gaurav Anand");
	gotoxy(30, 22);
	printf("Press Any key to Continue...");
	gotoxy(2, 2);
	_getch();
	
}
/* Instruction for the game */

void Instruction(void)
{
	system("cls");
	fillcolor(3, 3, 76, 23);
	rectangle(2, 2, 78, 24);
	rectangle(3, 2, 77, 24);
	
	gotoxy(23, 11);
	printf("Use the arrow keys to change direction.");
	gotoxy(23, 13);
	printf("Press 'Spacebar' to PAUSE and 'Esc' to");
	gotoxy(23, 15);
	printf("EXIT.");
	gotoxy(27, 18);
	printf("Press ENTER to continue...");
	gotoxy(2, 2);
	_getch();
	
}
void rectangle(int x, int y, int l, int b)
{
	int i, j, k, m;
	
	gotoxy(x, y);
	printf("%c", 201);
	for (i = x + 1; i <= l - 1; i++)
	{
		gotoxy(i, y);
		printf("%c", 205);
	}
	gotoxy(l, y);
	printf("%c", 187);
	for (j = y + 1; j <= b - 1; j++) { gotoxy(l, j); printf("%c", 186); } gotoxy(l, b); printf("%c", 188); for (k = l - 1; k >= x + 1; k--)
	{
		gotoxy(k, b);
		printf("%c", 205);
	}
	gotoxy(x, b);
	printf("%c", 200);
	for (m = b - 1; m >= y + 1; m--)
	{
		gotoxy(x, m);
		printf("%c", 186);
	}
}


void rectangle1(int x, int y, int l, int b)
{
	int i, j, k, m;
	
	gotoxy(x, y);
    printf("%c", 218);
	for (i = x + 1; i <= l - 1; i++)
	{
		gotoxy(i, y);
		printf("%c", 196);
	}
	gotoxy(l, y);
	printf("%c", 191);
	for (j = y + 1; j <= b - 1; j++) { gotoxy(l, j); printf("%c", 179); } gotoxy(l, b); printf("%c", 217); for (k = l - 1; k >= x + 1; k--)
	{
		gotoxy(k, b);
		printf("%c", 196);
	}
	gotoxy(x, b);
	printf("%c", 192);
	for (m = b - 1; m >= y + 1; m--)
	{
		gotoxy(x, m);
		printf("%c", 179);
	}
}



void fillcolor(int x1, int y1, int x2, int y2)
{
	int i, j;
	
	for (i = x1; i <= x2; i++)
	{
		for (j = y1; j <= y2; j++)
		{
			gotoxy(i, j);
			printf("%c",177);
		}
	}
}


void gotoxy(int x, int y)
{
	coord.X = x;
	coord.Y = y; // X and Y coordinates
	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}

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/* SNAKE GAME PROGRAM */

/*************************************************

Application: Snake Game

Compiled on: Visual Studio 2013

Programmer : Manish Kumar

OS : Window 98,2000,XP

Vista,Windows7

***************************************************/

/* Declaration of Header Files */

#include "stdio.h"

#include "conio.h"

#include "stdlib.h"

#include "dos.h"

#include "time.h"

#include "windows.h"

#include "string.h"

#define right 0

#define left 1

#define up 2

#define down 3

/* Global Declaration */

int x[100], y[100], i, length = 6, score = 0, l_k = right, eat = 0, xf, yf;

char ch;

/* Declaration of Functions */

void Food(void);

void Food1(void);

void Food2(void);

void rectangle(int x, int y, int l, int b);

void fillcolor(int x1, int y1, int x2, int y2);

void rectangle1(int x, int y, int l, int b);

void Level1(void);

void Level2(void);

void Level3(void);

void Level4(void);

void Instruction(void);

void Start(void);

void gotoxy(int x, int y);

COORD coord = { 0, 0 };

void main()

{

system("cls");

Start();

Instruction();

Level1();

_getch();

}

/* Level 2 */

void Level2(void)

{

system("cls");

/* Positioning the snake initally */

for (i = length - 1; i >= 0; i--)

{

x[i] = 25 - i;

y[i] = 15;

}

/*************************************/

START:

gotoxy(65, 3);

printf("%c",219);

rectangle(1, 1, 60, 24);

rectangle1(63, 13, 78, 18);

rectangle1(63, 1, 78, 6);

rectangle1(63, 7, 78, 12);

rectangle1(63, 19, 78, 24);

gotoxy(66, 3);

printf("SNAKE GAME%c",219);

gotoxy(67, 8);

printf(" LEVEL ");

gotoxy(70, 10);

printf("2");

gotoxy(67, 14);

printf(" SCORE ");

gotoxy(65, 3);

/*********************************/

while (1) /* Infinite Loop */

{

while (_kbhit() == 0) /* Do Nothing */

{

gotoxy(69, 16);

printf("%d", score);

for (i = length - 1; i>0; i--)

{

x[i] = x[i - 1];

y[i] = y[i - 1];

}

/* Snake Structure */

for (i = length - 1; i >= 0; i--)

{

gotoxy(x[i], y[i]);

printf("0");

}

gotoxy(x[0], y[0]);

printf("#");

gotoxy(x[length - 1], y[length - 1]);

printf(" ");

Food();

if (l_k == right || l_k == left)

{

Sleep(80);

}

if (l_k == up || l_k == down)

{

Sleep(130);

}

/* Hit the Wall */

if (x[0] == 1 || x[0] == 60 || y[0] == 1 || y[0] == 24)

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

if (l_k == right)

{

x[0]++;

}

if (l_k == left)

{

x[0]--;

}

if (l_k == up)

{

y[0]--;

}

if (l_k == down)

{

y[0]++;

}

/* Hit yourself */

for (i = length - 1; i>1; i--)

{

if (x[0] == x[i] && y[0] == y[i])

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

ch = _getch();

if (ch == 32)

{

gotoxy(65, 21);

printf("%c PAUSED... %c",219,219);

while (_kbhit() == 0)

gotoxy(65, 21);

printf(" ");

system("cls");

goto START;

}

if (ch == 27)

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

else if (ch == 72 && l_k != down)

l_k = up;

else if (ch == 80 && l_k != up)

l_k = down;

else if (ch == 77 && l_k != left)

l_k = right;

else if (ch == 75 && l_k != right)

l_k = left;

gotoxy(65, 3);

if (score == 180)

{

Sleep(30);

system("cls");

gotoxy(27, 12);

printf("Level 2 has been completed.");

Sleep(2000);

Level3();

}

/* Level 1 */

void Level1(void)

{

system("cls");

/* Positioning the snake initally */

for (i = length - 1; i >= 0; i--)

{

x[i] = 25 - i;

y[i] = 15;

}

/*************************************/

START:

gotoxy(65, 3);

printf("%c",219);

rectangle1(1, 1, 60, 24);

rectangle1(63, 13, 78, 18);

rectangle1(63, 1, 78, 6);

rectangle1(63, 7, 78, 12);

rectangle1(63, 19, 78, 24);

gotoxy(66, 3);

printf("SNAKE GAME%c",219);

gotoxy(67, 8);

printf(" LEVEL ");

gotoxy(70, 10);

printf("1");

gotoxy(67, 14);

printf(" SCORE ");

gotoxy(65, 3);

/*********************************/

while (1) /* Infinite Loop */

{

while (_kbhit() == 0) /* Do Nothing */

{

gotoxy(69, 16);

printf("%d", score);

for (i = length - 1; i>0; i--)

{

x[i] = x[i - 1];

y[i] = y[i - 1];

}

/* Snake Structure */

for (i = length - 1; i >= 0; i--)

{

gotoxy(x[i], y[i]);

printf("0");

}

gotoxy(x[0], y[0]);

printf("#");

gotoxy(x[length - 1], y[length - 1]);

printf(" ");

Food();

if (l_k == right || l_k == left)

{

Sleep(80);

}

if (l_k == up || l_k == down)

{

Sleep(130);

}

/****************************/

rectangle1(1, 1, 60, 24);

gotoxy(65, 3);

if (x[0] == 1)

{

rectangle1(1, 1, 60, 24);

x[0] = 59;

}

if (x[0] == 60)

{

rectangle1(1, 1, 60, 24);

x[0] = 2;

}

if (y[0] == 1)

{

rectangle1(1, 1, 60, 24);

y[0] = 23;

}

if (y[0] == 24)

{

rectangle1(1, 1, 60, 24);

y[0] = 2;

}

/*******************************/

if (l_k == right)

{

x[0]++;

}

if (l_k == left)

{

x[0]--;

}

if (l_k == up)

{

y[0]--;

}

if (l_k == down)

{

y[0]++;

}

/* Hit yourself */

for (i = length - 1; i>1; i--)

{

if (x[0] == x[i] && y[0] == y[i])

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

ch = _getch();

if (ch == 32)

{

gotoxy(65, 21);

printf("%c PAUSED... %c",219,219);

while (_kbhit() == 0)

gotoxy(65, 21);

printf(" ");

system("cls");

goto START;

}

if (ch == 27)

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

exit(0);

}

else if (ch == 72 && l_k != down)

l_k = up;

else if (ch == 80 && l_k != up)

l_k = down;

else if (ch == 77 && l_k != left)

l_k = right;

else if (ch == 75 && l_k != right)

l_k = left;

gotoxy(65, 3);

if (score == 90)

{

Sleep(30);

system("cls");

gotoxy(27, 12);

printf("Level 1 has been completed.");

Sleep(2000);

Level2();

}

/* Level 3 */

void Level3(void)

{

int t;

system("cls");

/* Positioning the snake initally */

for (i = length - 1; i >= 0; i--)

{

x[i] = 25 - i;

y[i] = 15;

}

/*************************************/

START:

gotoxy(65, 3);

printf("%c",219);

rectangle1(1, 1, 60, 24);

rectangle1(63, 13, 78, 18);

rectangle1(63, 1, 78, 6);

rectangle1(63, 7, 78, 12);

rectangle1(63, 19, 78, 24);

for (t = 10; t <= 50; t++) { gotoxy(t, 6); printf("_"); gotoxy(t, 12); printf("_"); gotoxy(t, 18); printf("_"); } gotoxy(66, 3); printf("SNAKE GAME%c",219); gotoxy(67, 8); printf(" LEVEL "); gotoxy(70, 10); printf("3"); gotoxy(67, 14); printf(" SCORE "); gotoxy(65, 3); /*********************************/ while (1) /* Infinite Loop */ { while (_kbhit() == 0) /* Do Nothing */ { gotoxy(69, 16); printf("%d", score); for (i = length - 1; i>0; i--)

{

x[i] = x[i - 1];

y[i] = y[i - 1];

}

/* Snake Structure */

for (i = length - 1; i >= 0; i--)

{

gotoxy(x[i], y[i]);

printf("0");

}

gotoxy(x[0], y[0]);

printf("#");

gotoxy(x[length - 1], y[length - 1]);

printf(" ");

Food1();

if (l_k == right || l_k == left)

{

Sleep(80);

}

if (l_k == up || l_k == down)

{

Sleep(130);

}

/****************************/

rectangle1(1, 1, 60, 24);

gotoxy(65, 3);

if (x[0] == 1)

{

rectangle1(1, 1, 60, 24);

x[0] = 59;

}

if (x[0] == 60)

{

rectangle1(1, 1, 60, 24);

x[0] = 2;

}

if (y[0] == 1)

{

rectangle1(1, 1, 60, 24);

y[0] = 23;

}

if (y[0] == 24)

{

rectangle1(1, 1, 60, 24);

y[0] = 2;

}

/********* Hits The Wall **********/

if ((x[0] >= 10 && x[0] <= 50 && y[0] == 6) || (x[0] >= 10 && x[0] <= 50 && y[0] == 12) || (x[0] >= 10 && x[0] <= 50 && y[0] == 18)) { Sleep(1000); gotoxy(65, 21); printf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } /*******************************/ if (l_k == right) { x[0]++; } if (l_k == left) { x[0]--; } if (l_k == up) { y[0]--; } if (l_k == down) { y[0]++; } /* Hit yourself */ for (i = length - 1; i>1; i--)

{

if (x[0] == x[i] && y[0] == y[i])

{

Sleep(1000);

gotoxy(65, 21);

_cprintf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

ch = _getch();

if (ch == 32)

{

gotoxy(65, 21);

printf("%c PAUSED... %c",219,219);

while (_kbhit() == 0)

gotoxy(65, 21);

printf(" ");

system("cls");

goto START;

}

if (ch == 27)

{

Sleep(1000);

gotoxy(65, 21);

printf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

else if (ch == 72 && l_k != down)

l_k = up;

else if (ch == 80 && l_k != up)

l_k = down;

else if (ch == 77 && l_k != left)

l_k = right;

else if (ch == 75 && l_k != right)

l_k = left;

gotoxy(65, 3);

if (score == 270)

{

Sleep(30);

system("cls");

gotoxy(27, 12);

printf("Level 3 has been completed.");

Sleep(2000);

Level4();

}

/* Level 4 */

void Level4(void)

{

int t;

system("cls");

/* Positioning the snake initally */

for (i = length - 1; i >= 0; i--)

{

x[i] = 45 - i;

y[i] = 15;

}

/*************************************/

START:

gotoxy(65, 3);

printf("%c",219);

rectangle1(1, 1, 60, 24);

rectangle1(63, 13, 78, 18);

rectangle1(63, 1, 78, 6);

rectangle1(63, 7, 78, 12);

rectangle1(63, 19, 78, 24);

for (t = 5; t <= 12; t++)

{

gotoxy(10, t);

printf("%c",179);

gotoxy(50, t);

printf("%c",179);

}

for (t = 17; t <= 21; t++)

{

gotoxy(20, t);

printf("%c",179);

}

for (t = 40; t <= 55; t++)

{

gotoxy(t, 18);

printf("%c",95);

}

for (t = 20; t <= 40; t++) { gotoxy(t, 7); printf("%c",95); } gotoxy(66, 3); printf("SNAKE GAME%c",219); gotoxy(67, 8); printf(" LEVEL "); gotoxy(70, 10); printf("4"); gotoxy(67, 14); printf(" SCORE "); gotoxy(65, 3); /*********************************/ while (1) /* Infinite Loop */ { while (_kbhit() == 0) /* Do Nothing */ { gotoxy(69, 16); _cprintf("%d", score); for (i = length - 1; i>0; i--)

{

x[i] = x[i - 1];

y[i] = y[i - 1];

}

/* Snake Structure */

for (i = length - 1; i >= 0; i--)

{

gotoxy(x[i], y[i]);

printf("0");

}

gotoxy(x[0], y[0]);

printf("#");

gotoxy(x[length - 1], y[length - 1]);

printf(" ");

Food2();

if (l_k == right || l_k == left)

{

Sleep(80);

}

if (l_k == up || l_k == down)

{

Sleep(130);

}

/****************************/

rectangle1(1, 1, 60, 24);

gotoxy(65, 3);

if (x[0] == 1)

{

rectangle1(1, 1, 60, 24);

x[0] = 59;

}

if (x[0] == 60)

{

rectangle1(1, 1, 60, 24);

x[0] = 2;

}

if (y[0] == 1)

{

rectangle1(1, 1, 60, 24);

y[0] = 23;

}

if (y[0] == 24)

{

rectangle1(1, 1, 60, 24);

y[0] = 2;

}

/*************** Hits the Wall *******************/

if ((x[0] == 10 && (y[0] >= 5 && y[0] <= 12)) || (x[0] == 50 && (y[0] >= 5 && y[0] <= 12)) || (x[0] == 20 && (y[0] >= 17 && y[0] <= 21))) { Sleep(1000); gotoxy(65, 21); _cprintf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } if (((x[0] >= 40 && x[0] <= 55) && y[0] == 18) || ((x[0] >= 20 && x[0] <= 40) && y[0] == 7)) { Sleep(1000); gotoxy(65, 21); _cprintf(" GAME OVER "); gotoxy(65, 3); Sleep(1000); system("cls"); exit(0); } /*******************************/ if (l_k == right) { x[0]++; } if (l_k == left) { x[0]--; } if (l_k == up) { y[0]--; } if (l_k == down) { y[0]++; } /* Hit yourself */ for (i = length - 1; i>1; i--)

{

if (x[0] == x[i] && y[0] == y[i])

{

Sleep(1000);

gotoxy(65, 21);

_cprintf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

ch = _getch();

if (ch == 32)

{

gotoxy(65, 21);

printf("%c PAUSED... %c",219,219);

while (_kbhit() == 0)

gotoxy(65, 21);

printf(" ");

system("cls");

goto START;

}

if (ch == 27)

{

Sleep(1000);

gotoxy(65, 21);

_cprintf(" GAME OVER ");

gotoxy(65, 3);

Sleep(1000);

system("cls");

exit(0);

}

else if (ch == 72 && l_k != down)

l_k = up;

else if (ch == 80 && l_k != up)

l_k = down;

else if (ch == 77 && l_k != left)

l_k = right;

else if (ch == 75 && l_k != right)

l_k = left;

gotoxy(65, 3);

}

void Food(void)

{

if (eat == 0)

{

srand(time(NULL)); /* Initializes random number generator */

xf = (rand() % (20)) + 4; /* Generates random number */

yf = (rand() % (21)) + 3;

eat = 1;

}

if ((xf == 1 || xf == 60) || (yf == 1 || yf == 24))

{

xf = 3;

yf = 3;

}

gotoxy(xf, yf);

printf("*");

gotoxy(65, 3);

if ((xf == x[0]) && (yf == y[0]))

{

score = score + 9;

length++;

eat = 0;

}

void Food1(void)

{

if (eat == 0)

{

srand(time(NULL)); /* Initializes random number generator */

xf = (rand() % (20)) + 4; /* Generates random number */

yf = (rand() % (21)) + 3;

eat = 1;

}

if ((xf >= 10 && xf <= 50 && yf == 6) || (xf >= 10 && xf <= 50 && yf == 12) || (xf >= 10 && xf <= 50 && yf == 18) || (xf == 1 || xf == 60) || (yf == 1 || yf == 24)) { xf = 5; yf = 3; } gotoxy(xf, yf); printf("*"); gotoxy(65, 3); if ((xf == x[0]) && (yf == y[0])) { score = score + 9; length++; eat = 0; } } void Food2(void) { if (eat == 0) { srand(time(NULL)); /* Initializes random number generator */ xf = (rand() % (20)) + 4; /* Generates random number */ yf = (rand() % (21)) + 3; eat = 1; } if ((xf == 1 || xf == 60) || (yf == 1 || yf == 24)) { xf = 6; yf = 3; } if ((xf == 10 && (yf >= 5 && yf <= 12)) || (xf == 50 && (yf >= 5 && yf <= 12)) || (xf == 20 && (yf >= 17 && yf <= 21))) { xf = 5; yf = 2; } if (((xf >= 40 && xf <= 55) && yf == 18) || ((xf >= 20 && xf <= 40) && yf == 7))

{

xf = 3;

yf = 2;

}

gotoxy(xf, yf);

printf("*");

gotoxy(65, 3);

if ((xf == x[0]) && (yf == y[0]))

{

score = score + 9;

length++;

eat = 0;

}

void Start(void)

{

system("cls");

fillcolor(3, 3, 76, 23);

rectangle(2, 2, 78, 24);

rectangle(3, 2, 77, 24);

gotoxy(35, 5);

printf(" SNAKE GAME ");

gotoxy(30, 10);

printf("Designed and Programmed by:");

gotoxy(35, 14);

printf("Manish Kumar");

gotoxy(35,16);

printf("Gaurav Anand");

gotoxy(30, 22);

printf("Press Any key to Continue...");

gotoxy(2, 2);

_getch();

}

/* Instruction for the game */

void Instruction(void)

{

system("cls");

fillcolor(3, 3, 76, 23);

rectangle(2, 2, 78, 24);

rectangle(3, 2, 77, 24);

gotoxy(23, 11);

printf("Use the arrow keys to change direction.");

gotoxy(23, 13);

printf("Press 'Spacebar' to PAUSE and 'Esc' to");

gotoxy(23, 15);

printf("EXIT.");

gotoxy(27, 18);

printf("Press ENTER to continue...");

gotoxy(2, 2);

_getch();

}

void rectangle(int x, int y, int l, int b)

{

int i, j, k, m;

gotoxy(x, y);

printf("%c", 201);

for (i = x + 1; i <= l - 1; i++)

{

gotoxy(i, y);

printf("%c", 205);

}

gotoxy(l, y);

printf("%c", 187);

for (j = y + 1; j <= b - 1; j++) { gotoxy(l, j); printf("%c", 186); } gotoxy(l, b); printf("%c", 188); for (k = l - 1; k >= x + 1; k--)

{

gotoxy(k, b);

printf("%c", 205);

}

gotoxy(x, b);

printf("%c", 200);

for (m = b - 1; m >= y + 1; m--)

{

gotoxy(x, m);

printf("%c", 186);

}

void rectangle1(int x, int y, int l, int b)

{

int i, j, k, m;

gotoxy(x, y);

printf("%c", 218);

for (i = x + 1; i <= l - 1; i++)

{

gotoxy(i, y);

printf("%c", 196);

}

gotoxy(l, y);

printf("%c", 191);

for (j = y + 1; j <= b - 1; j++) { gotoxy(l, j); printf("%c", 179); } gotoxy(l, b); printf("%c", 217); for (k = l - 1; k >= x + 1; k--)

{

gotoxy(k, b);

printf("%c", 196);

}

gotoxy(x, b);

printf("%c", 192);

for (m = b - 1; m >= y + 1; m--)

{

gotoxy(x, m);

printf("%c", 179);

}

void fillcolor(int x1, int y1, int x2, int y2)

{

int i, j;

for (i = x1; i <= x2; i++)

{

for (j = y1; j <= y2; j++)

{

gotoxy(i, j);

printf("%c",177);

}

void gotoxy(int x, int y)

{

coord.X = x;

coord.Y = y; // X and Y coordinates

SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);

}

At the top he defined four Constants for the controller to make action depending upon the input declared some global variables which can be used for the entire flow of the program.

I am going to give an outline for the program thus which will help the budding programmers to understand it easily.

After that several method prototypes are declared for invoking the function when it is useful.

At starts System(cls) clears the command line windows in order for the game to run.

The Start Method is used to start the game followed by selecting the level using the method after that a character input is expected from the user inorder for the game to start.

The START declaration is used to declare a goto statement after that and methods are invoked when it called.

When the snake hits a wall the Thread sleeps for one second and the game instance is destroyed.

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A Snake Game in Visual C++ Source Code11 min read

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