simple snake game

[darkside1223]

I'm trying to get the game to start over by using a while loop but I keep running into problems if anyone can help me it would be greatly appreciated.

  #include <iostream>
#include <conio.h> 
#include <Windows.h>

using namespace std;

bool gameOver;
const int width =20;
const int height = 20;
int x,y, fruitX, fruitY, score;
int tailX[100], tailY[100];   //this variable will keep track of where the tail is at on the map.
int ntail; //this variable will tell the length of the tail.
enum eDirection {STOP = 0, LEFT, RIGHT, UP, DOWN}; //this enum is help the snake move.
eDirection dir;  //and this variable is to hold the direction of the snake.

void setup()
{
	gameOver = false;
	dir = STOP;
	x = width / 2;    //those two functions is so the snake head will be centered on the map
	y = height / 2;
	fruitX = rand() % width;    //and those two variable is so the fruit will appear all over the map.
	fruitY = rand() % height;
	score = 0;
}

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

	for (int i = 0; i < width + 2; ++i)  
		cout << "#";
	cout << endl;

	for (int i = 0; i < height; ++i)
	{
		for (int j = 0; j < width; j++)
		{
			if (j == 0)
				cout << "#";
			if (i == y && j ==x)               
				cout << "O";
			else if (j == fruitX && i == fruitY)   
				cout << "F";
			else
			{
                bool print = false;
				for (int k = 0; k < ntail; k++)
				{	
					if (tailX[k] == j && tailY[k] == i)
					{
						cout << "o";
						print = true;
					}
				}
				if (!print)
						cout << " ";
			}

			if (j == width - 1)
				cout << "#";
		}
        cout << endl;
	}
	

	for (int i = 0; i < width + 2; ++i)
		cout << "#";
	cout << endl;
	cout << "Score:" << score << endl;
}

void input()
{
	if (_kbhit())  //this will handle the controls.
	{
		switch (_getch())
		{
		case 'a':
			dir = LEFT;
			break;

		case 'd': 
			dir = RIGHT;
			break;

		case 's':
			dir = DOWN;
			break;

		case 'w':
			dir = UP;
			break;

		case 'x':
			gameOver = true;
			break;
		}
	}
}

void logic() 
{
	int prevX = tailX[0];
	int prevY = tailY[0];
	int prev2X, prev2Y;
    tailX[0] = x;  //those two functions are telling the tail to follow the head.
	tailY[0] = y;
	for (int i = 1; i < ntail; i++)  //this for loop is telling what happens when the snake eat the fruit.
	{
		prev2X = tailX[i];
		prev2Y = tailY[i];
		tailX[i] = prevX;
		tailY[i] = prevY;
		prevX = prev2X;
		prevY = prev2Y;	
	}

	switch (dir) //this actual makes the snake move when you run the program.
	{
	case LEFT:
		x--;
		break;

	case RIGHT:
		x++;
		break;

	case UP:
		y--;
		break;

	case DOWN:
		y++;
		break;

	default:
		break;
	}

	if (x >= width) x = 0; else if (x < 0) x = width - 1; 
	if (y >= height) y = 0; else if (y < 0) y = height - 1;
	for (int i = 0; i < ntail; i++)
		if (tailX[i] == x && tailY[i] == y)
			gameOver = true;
	if (x == fruitX && y == fruitY)
	{
		score += 10;               
		fruitX = rand() % width;   
	    fruitY = rand() % height;
		ntail++;
	}
	
}

int main() 
{
	setup();

	while (!gameOver)
	{
		draw();   
		input();   
		logic();  
	    Sleep(15); 
    }

	return 0;
}

[SweatyJuice]

I am also new to c++ but maybe you could do this. You will have to make a new function to clear the "board" or modify the draw function, but if you want to ask the player to play again thats how i would do it.

int main()
{
	setup();

	do
    {
        do
        {
            draw();
            input();
            logic();
            Sleep(15);

        }while(gameOver == false);

    char answer;
        
    cout<<"Would you like to play again?(y/n)"<<endl;
    cin>>answer;
        
    if(answer == 'y')
        gameOver = false;

    else if(answer == 'n')
        gameOver = true;
            
    else
        cin>>answer;

    }while(gameOver == false);

	return 0;
}

Hope it helps

[darkside1223]

No it is not a school assignment