C++ :: Pacman Game - Move Smiley In Code Automatically And Stop Screen Flickering?

So far I have managed to write the code for a simple game (resembling to "Pacman") :P. Now what I want is to move the smiley in the upper left-hand corner of the map "automatically" when the program runs and also want it to change it's direction to up or down when it touches the wall.

Also the screen is flickering when the program runs (due to re-printing the whole array?). I want to stop this flicker. Somebody suggested to use 'gotoxy' function.

Here's my code :

#include <iostream>
#include <conio.h>
#include <stdlib.h>
using namespace std;
void display (char array [10][25] , int row , int column) {

[Code] .....