import java.util.Scanner;

import java.io$.$FileNotFoundException;

public class MazeGame $\{$

$//$ Constants for array indices

private static final int ROW $=0$;

private static final int COL $=1$;

$//$ Fields

private final int HEIGHT $=19$;

private final int WIDTH $=39$;

private final int playerInput;

private final boolean$[][]$ blocked;

private final boolean$[][]$ visited;

private final int$[]$ player;

private final int$[]$ goal;

private final int$[]$ start;

$//$ Constructors

public MazeGame$($Scanner scanner$)$ throws FileNotFoundException $\{$

this.playerInput $=$ scanner.nextInt$()$;

$//$ Call loadMaze here

$\}$

public MazeGame$($String mazeFile$)$ throws FileNotFoundException $\{$

this$($new Scanner$($System$.$in$))$; $//$ Assume reading from keyboard

$\}$

$//$ Getters and Setters

public int getPlayerInput$()\{$

return playerInput;

$\}$

public int getPlayerRow$()\{$

return player$[$ROW$]$;

$\}$

public void setPlayerRow$($int row$)\{$

if $($row $>=0$ && row $<$ HEIGHT$)\{$

player$[$ROW$]=$ row;

$\}$

$\}$

public int getPlayerCol$()\{$

return player$[$COL$]$;

$\}$

public void setPlayerCol$($int col$)\{$

if $($col $>=0$ && col $<$ WIDTH$)\{$

player$[$COL$]=$ col;

$\}$

$\}$

public int getGoalRow$()\{$

return goal$[$ROW$]$;

$\}$

public void setGoalRow$($int row$)\{$

if $($row $>=0$ && row $<$ HEIGHT$)\{$

goal$[$ROW$]=$ row;

$\}$

$\}$

public int getGoalCol$()\{$

return goal$[$COL$]$;

$\}$

public void setGoalCol$($int col$)\{$

if $($col $>=0$ && col $<$ WIDTH$)\{$

goal$[$COL$]=$ col;

$\}$

$\}$

$//$ Other methods $($not fully implemented$)$

private boolean$[][]$ copyTwoDimBoolArray$($boolean$[][]$ array$)\{$

$//$ Implementation of copying a two$-$dimensional boolean array

$//($Left as an exercise for you$)$

return null;

$\}$

private void printMaze$()\{$

$//$ Implementation of printing the maze

$//($Left as an exercise for you$)$

$\}$

private void loadMaze$($String mazeFile$)$ throws FileNotFoundException $\{$

$//$ Implementation of loading maze from file

$//($Left as an exercise for you$)$

$\}$

private void prompt$()\{$

printMaze$()$;

System.out.print$("$Enter your move $($up$,$ down, left, right, or q to quit$)$: $")$;

$\}$

private boolean playerAtGoal$()\{$

return player$[$ROW$]==$ goal$[$ROW$]$ && player$[$COL$]==$ goal$[$COL$]$;

$\}$

private boolean valid$($int row, int col$)\{$

return row $>=0$ && row $<$ HEIGHT && col $>=0$ && col $<$ WIDTH && $!$blocked$[$row$][$col$]$;

$\}$

private void visit$($int row, int col$)\{$

visited$[$row$][$col$]=$ true;

$\}$

$\}$