entering 0s and negative values into while

Im working on a robot project for my intro to computing science class and I'm stuck in quite a sticky situation. The robot reads only values from 1 to 4 to move north, east, south, west, 1,2,3,4 respectively. 1 = north, 2 = south...
But the catch here is if I enter a 0 or negative number then my program should read "end of journey" how do I actually implement that into my statement?

this is what I have so far,

Code:

---

while ( direction > 0)
          {//opens bracket for the loop
                if (direction == NORTH)
                      {
                      cout << "Move north\n";
                      }
                else if (direction == EAST)
                        {
                        cout << "Move east\n";
                        }
                else if (direction == SOUTH)
                        {
                        cout << "Move south\n";
                        }
                else if (direction == WEST)
                        {
                        cout << "Move west\n";

                        }
                else
                        {
                        cout << "Invalid positive input for direction\n";
                        }
                        cout << "Enter direction values again\n";
                        cin >> direction;

---

what am I doing wrong? Please and thank you, anything is appreciated.

before the direction is actually checked, I have also writted
cout << "Enter direction your robot wishes to move, 1 for north, 2 for south, 3 for east, and 4 for west\n";
cin >> direction;
and then the while loop begins.

A 0 or negative dumps you out of the loop. So when you get out of the loop, there you are.

yes, if I enter a 0 or a negative I'm out of the loop, but then the program just ends there, so where can I actually write the code to report to the user "end of journey", without the loop asking asking me "enter the direction values again"?

So don't print "Enter again", print "End of journey".

I think I fixed the error now, i just wrote cout << "End of journey\n";
after the closing bracket for the while loop, so now when I enter a few valid values, and enter a neg or zero it works.