Snake

#include <iostream>
#include <conio.h>
#include <Windows.h>
#define max 100
using namespace std;

int sl = 4;
int keyEvent;
int xqua = rand() % ( 67 - 11 + 1) + 11;
int yqua = rand() % ( 16 - 2 + 1) + 2;
bool lose = false;

void SnakeVal();
void CoutSnake();
void UpdateVal();
void Fruit();
void CreateBox();

void gotoXY (int column, int line)
{
	COORD coord;
	coord.X = column;
	coord.Y = line;
	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),coord);
}
struct toado
{
	int x;
	int y;	
};
toado ran[max];

int main ()
{
	SnakeVal();
	while(1)
	{
		CreateBox();
		Fruit();
		if(kbhit())
		{
		char key = getch();
			if ((key == 'a') && (keyEvent != 2)) keyEvent = 1;
			if ((key == 'd') && (keyEvent != 1)) keyEvent = 2;
			if ((key == 'w') && (keyEvent != 4)) keyEvent = 3;
			if ((key == 's') && (keyEvent != 3)) keyEvent = 4;
    	}
	    	if (keyEvent == 1) {ran[0].x--;	UpdateVal();}
			if (keyEvent == 2) {ran[0].x++; UpdateVal();}
			if (keyEvent == 3) {ran[0].y--; UpdateVal();}
			if (keyEvent == 4) {ran[0].y++; UpdateVal();}
		CoutSnake();
		
		if (ran[0].x == 69 || ran[0].x == 10) lose = true;
		if (ran[0].y == 2 || ran[0].y == 18) lose = true;
		if (lose == true) 
		{
			system("cls");
			cout << sl;
			break;
		}
		system("cls");
	}
}
void SnakeVal()
{
 	ran[0].x = 23;
 	ran[1].x = 24;
 	ran[2].x = 25;
 	ran[0].y = 7;
 	ran[1].y = 7;
 	ran[2].y = 7;
}
void CoutSnake()
{
	for (int i = 0;i<sl;i++)
	{
		gotoXY(ran[i].x,ran[i].y);
		if (i <= 0) cout << "0"; else cout << "o";
	}
}
void UpdateVal()
{
	for (int i = sl - 1;i>=1;i--)
	{
		ran[i] = ran[i-1];
	}
}
void Fruit()
{
	gotoXY(xqua,yqua); cout << "X";
	if ((ran[0].x == xqua) && (ran[0].y == yqua))
	{
		sl++;
		xqua = rand() % (68 - 11 + 1) + 11;
		yqua = rand() % (17 - 3 + 1) + 3;		
	}
}

void CreateBox()
{
	for (int i=10;i<70;i++) {gotoXY(i,2); cout << "0";}
	for (int i=10;i<70;i++) {gotoXY(i,18); cout << "0";}
	for (int i=3;i<18;i++) {gotoXY(10,i); cout << "0";}
	for (int i=3;i<18;i++) {gotoXY(69,i); cout << "0";}
}