C++ snake dont move - c++

Question

I have one problem. My snake is not moving. I cant find mistake. It draws map and snake head bt it doesnt move.
#include <iostream>
#include <conio.h>
using namespace std;
bool gameOver;
const int width = 20;
const int height = 20;
int x, y, fruitX, fruitY;
enum eDirecton { STOP = 0, LEFT, RIGHT, UP, DOWN };
eDirecton dir;
void Setup() {
gameOver = false;
dir = STOP;
x = width / 2;
y = height / 2;
fruitX = rand() % width;
fruitY = rand() % height;
}
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(i == fruitY && j == fruitX)
cout << "F";
else
cout << " ";
if(j == width - 1) cout << "#";
}
cout << endl;
}
for(int i = 0; i < width + 2; i++) cout << "#";
cout << endl;
}
void Input() {
if(_kbhit()) {
switch(_getch()) {
case 'a':
dir = LEFT;
break;
case 'd':
dir = RIGHT;
break;
case 'w':
dir = UP;
break;
case 's':
dir = DOWN;
break;
case 'q':
gameOver = true;
break;
}
}
}
void Logic() {
switch(dir) {
case LEFT:
x--;
break;
case RIGHT:
x++;
break;
case UP:
y++;
break;
case DOWN:
y--;
break;
default:
break;
}
}
int main() {
Setup();
while(!gameOver) {
Draw();
Input();
Logic();
// sleep (10)
}
return 0;
}

Answer 1

Start game right-away as you don't have a control key to start the game. Also it seems the UP/DOWN keys logic needs to interchange, as it is behaving opposite.
void Setup() {
dir = DOWN;
/* … */
}
// Control speed of animation . You may require #include<chrono>
int main() {
Setup();
while (!gameOver) {
Draw();
Input();
Logic();
this_thread::sleep_for(chrono::milliseconds(300));
}
return 0;
}

Answer 2

It's moving here (after pressing a key). Are you sure you're using the a,d,w,s keys and not the arrow keys?
You also need to switch the up an down logic, and provide a way to prevent going past the borders:
void Logic() {
switch(dir) {
case LEFT:
x--;
if (x < 0)
x = width-1;
break;
case RIGHT:
x++;
if (x == width)
x = 0;
break;
case UP:
y--;
if (y < 0)
y = height-1;
break;
case DOWN:
y++;
if (y == height)
y = 0;
break;
default:
break;
}
}
Or the short style version like:
case LEFT:
if (--x < 0)
x = width-1;
break;
To start te game immediately just set the direction in your setup().

Answer 3

It's Moving
Make Sure You're using a,s,d,w Keys and not Arrow Keys .