src/main/java/org/teachingextensions/logo/utils/PuzzleUtils/Puzzle.java
public int getDistanceToGoal()
  {
    int distance = 0;
    for (int i = 0; i < cells.length; i++)
    {
      distance += getDistance(i, cells[i]);
    }
    return distance;
  }
public int getDistanceToGoal()
  {
    int distance = 0;
    for (int i = 0; i < cells.length; i++)
    {
      distance += getDistance(i, cells[i]);
    }
    return distance;
  }
Calculate the distance between the goal by summing the distance between each cell and its goal.

@return The distance to the goal.