private GameLoopMethod()
{
    // Doing derp stuff
    Coordinates newCoords = followPotatoes(x, y, a, b);

    myObjectThatNeedsToFollowStuff.x = newCoords.xCoord;
    myObjectThatNeedsToFollowStuff.y = newCoords.yCoord;
}

private Coordinates followPotatoes(int x, int y, int a, int b)
{
    if (a != x) {
        if (a < x) {
            a += 1;
        } else {
            a -= 1;
        }
    }

    if (b != y) {
        if (b < y) {
            b += 1;
        } else {
            b -= 1;
        }
    }
    Coordinates returnCoords = new Coordinates(a, b);
    return returnCoords;
}

===
DIFFERENT FILE
===

public class Coordinates
{
    public int xCoord;
    public int yCoord;

    public Coordinates(int x, int y) {
        xCoord = x;
        yCoord = y;
    }
}