private void Move(GameObject[,] maze, int r, int c)
    {
        Debug.Log("Move");
        int dir = chooseDirection();

        // check the direction we've picked
        if (dir == 0) // checks north
        {
            if (maze[r + 1, c].tag == "path")
            {
                Vector3 target = new Vector3(maze[r + 1, c].transform.position.x, 2.5f, maze[r + 1, c].transform.position.z);

                transform.position = target;
                currRow += 1;
                }
        }
        else if (dir == 1) // checks east
        {
            if (maze[r, c + 1].tag == "path")
            {
                Vector3 target = new Vector3(maze[r, c + 1].transform.position.x, 2.5f, maze[r, c + 1].transform.position.z);

                transform.position = target;
                currCol += 1;
            }
        }
        else if (dir == 2) // checks south
        {
            if (maze[r - 1, c].tag == "path")
            {
                Vector3 target = new Vector3(maze[r - 1, c].transform.position.x, 2.5f, maze[r - 1, c].transform.position.z);

                transform.position = target;
                currRow -= 1;
            }
        }
        else if (dir == 3) // checks west
        {
            if (maze[r, c - 1].tag == "path")
            {
                Vector3 target = new Vector3(maze[r, c - 1].transform.position.x, 2.5f, maze[r, c - 1].transform.position.z);

                transform.position = target;
                currCol -= 1;
            }
        }
    }