Escape a Maze
Let's get some more practice with algorithms by escaping from a maze!
Implement a public class MazeEscape
that provides a single public class method named escape
.
escape
accepts a single parameter, a Maze
object with methods explained below.
Your goal is to manipulate the maze until you reach the exit, and then return it when you are finished.
If the passed maze
is null
, throw an IllegalArgumentException
.
To navigate the maze, using the following Maze
methods:
isFinished()
: returnstrue
when you have reached the exit of the mazeturnRight()
rotates your character 90 degrees to the rightturnLeft()
rotates your character 90 degrees to the leftcanMove()
returnstrue
if you can move one cell forward,false
otherwise. Your path may be blocked by a wall!move()
moves your character one cell forward and increases the step counter
The passed Maze
object represents a simply-connected or perfect maze: one that contains no loops. As a result,
we suggest that you pursue a classic maze escape algorithm: wall following. Simply put, in a maze that contains no
loops, as long as you continue following a wall you will eventually reach the exit. In a corn maze, you might
implement this by simply maintaining contact with a wall (right or left) until you complete the maze. However,
you'll need to think a bit about how to implement this algorithm to finish this problem.