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Puzzle 8 Artificial Intelligence
package puzzle;
import framework.*;
import java.util.*;
/**
This class is respnsible for representing the internal details of a bridge state, displaying bridge state to output, and checking for state equality.
*/
public class puzzleState implements State
{
/**
*private String array for tile numbers.
*/
private int [] tileNums;
/**
* Creates a new puzzle state
* @param tileNums is a string
*/
public puzzleState(int[] tileNumsIn)
{ tileNums = tileNumsIn;
}
/**
* This method displays the outputs.
*/
public void display()
{
}
/**
Tests for equality between this state and the argument state
Two states are equals if all the same people are on the same sides.
@param state the state to test against this state
@return wheather the states are equal
*/
public boolean equals(State state)
{
puzzleState aState = (puzzleState) state;
if (getArray() == aState.getArray())
return true;
else
return false;
}
public int[] getArray() {
return tileNums;
}
/**
*Accessor for array index of the blank position
*@return int blank
*/
public int getBlank() {
int[] copy = getArray();
int blank=-1;
int i=0;
while (i <= 8) {
if (copy == 0) { blank=i; }
i++;
}
return blank;
}
}
package puzzle;
import framework.*;
import java.util.*;
/**
This class is responsible for performing the legal moves that can be
done on states in the puzzle problem
*/
public class puzzleMove extends Move
{
/**
@param BLOCKUP moves the blank block up
@param BLOCKDOWN moves the blank block down
@param BLOCKRIGHT moves the blank block right
@param BLOCKLEFT moves the blank block left
*/
public static final String ML = "ml";
public static final String MD = "md";
public static final String MR = "mr";
public static final String MU = "mu";
public static final String randM = "rand";
private static final int SECOND = 1;
private static final int Zero = 0;
//private String moveName;
/**
Creates a puzzle Move.
@param moveName a user command
@precondition moveName must be one of the listed commands
*/
public puzzleMove(String moveName)
{ super(moveName);
}
/*
Accessor for puzzle Move name
@return the name of this move
public String getMoveName()
{ return moveName;
}*/
/**
* This method moves the zero up.
*/
public puzzleState moveUp(puzzleState stateIn)
{
int blankPos = stateIn.getBlank(); //locate zero with incoming state
if (blankPos == 0 || blankPos == 1 || blankPos == 2) {
//JOptionPane.showMessageDialog(null,"Invalid State");
return null;
}
else {
int[] temp = stateIn.getArray(); //get the array
int temp2 = temp[blankPos-3]; //store dest in temp
temp[blankPos-3]=Zero; //move blank into dest
temp[blankPos]=temp2; //move temp into blank
puzzleState newState = new puzzleState(temp);
return newState;
}
}
/**
* This method moves the zero down.
*/
public puzzleState moveDown(puzzleState stateIn)
{
int blankPos = stateIn.getBlank(); //locate zero with incoming state
if (blankPos == 6 || blankPos == 7 || blankPos == 8) {
//JOptionPane.showMessageDialog(null,"Invalid State");
return null;
}
else {
int[] temp = stateIn.getArray(); //get the array
int temp2 = temp[blankPos+3]; //store dest in temp
temp[blankPos+3]=Zero; //move blank into dest
temp[blankPos]=temp2; //move temp into blank
puzzleState newState = new puzzleState(temp);
return newState;
}
}
/**
* This method moves the zero left.
*/
public puzzleState moveLeft(puzzleState stateIn)
{
int blankPos = stateIn.getBlank(); //locate zero with incoming state
if (blankPos == 0 || blankPos == 3 || blankPos == 6) {
//JOptionPane.showMessageDialog(null,"Invalid State");
return null;
}
else {
int[] temp = stateIn.getArray(); //get the array
int temp2 = temp[blankPos-1]; //store dest in temp
temp[blankPos-1]=Zero; //move blank into dest
temp[blankPos]=temp2; //move temp into blank
puzzleState newState = new puzzleState(temp);
return newState;
}
}
/**
*this method is responsible for randomizing the problem in any possible state
*
*/
private int[] randomizeInitialState() {
puzzleState randState;
int[] victim = {1,2,3,4,5,6,7,8,0}; //the victim to be randomized
Random rand = new Random();
int max = 8;
int victim2=0;
for (int i=0; i<= max; i++) {
victim2=rand.nextInt(max+1);
//System.out.println(victim2);
if (i==0) victim=victim2;
else if (contains(victim, i, victim2)==true) i--;
else if (contains(victim, i, victim2)==false)
victim=victim2;
}
return victim;
}
private boolean contains(int[] victim, int size, int element) {
int counter=0;
boolean flag=false;
while (counter <= size) {
if (victim[counter] == element) {
flag = true;
//System.out.println("collsion:"+element);
}
counter++;
}
return flag;
}
public puzzleState randomize() {
System.out.println("Randomize:");
int[] victim = randomizeInitialState();
puzzleState victim2 = new puzzleState(victim);
return victim2;
}
/**
* This method moves the zero right.
*/
public puzzleState moveRight(puzzleState stateIn)
{
int blankPos = stateIn.getBlank(); //locate zero with incoming state
if (blankPos == 2 || blankPos == 5 || blankPos == 8) {
//JOptionPane.showMessageDialog(null,"Invalid State");
return null;
}
else {
int[] temp = stateIn.getArray(); //get the array
int temp2 = temp[blankPos+1]; //store dest in temp
temp[blankPos+1]=Zero; //move blank into dest
temp[blankPos]=temp2; //move temp into blank
puzzleState newState = new puzzleState(temp);
return newState;
}
}
/**
Performs a puzzle move on the given puzzle state.
@param state and exisiting puzzle state.
@return a new state resulting from the move
*/
public puzzleState doMove(State state) {
puzzleState finalState;
puzzleState state1 = (puzzleState) state;
state = (puzzleState) state;
finalState = TestMove(state1);
return finalState;
}
private puzzleState TestMove(puzzleState testState){
puzzleState newState = testState;
char ch = getMoveName().charAt(SECOND);
switch(ch) {
case 'l':
newState = moveLeft(testState);
break;
case 'r':
newState = moveRight(testState);
break;
case 'u':
newState = moveUp(testState);
break;
case 'd':
newState = moveDown(testState);
break;
case 'a':
newState = randomize();
break;
default:
System.out.println("Error in Switch Statement.");
newState = null;
// ****** MAYBE NOT newState = NULL
}//end switch
return newState;
}//end TestMove
}
package puzzle;
import framework.*;
import java.util.*;
/**
This class keeps track of the current state of the puzzle problem,
collects the legal bridge moves, attempts to transform the current state
given a user command, and checks for problem success.
*/
public class puzzleProblem extends Problem{
/**
begin holds the intial puzzleState
*/
private static puzzleState begin;
private int heur;
/**
moves holds the list of moves availbile
*/
private static ArrayList moves;
/**
Creates a new puzzle problem
@param init The initial puzzle State
@param moves The list of legal puzzle Moves
*/
public puzzleProblem (/*puzzleState init, ArrayList moveList, String intro*/){
super(init, new ArrayList(Arrays.asList(moveList)), intro);
begin = (puzzleState) init;
}
/**
Tests for whether the current state of the problem represent success
@return true if the user gets 1 through 8 around the edge of the grid
*/
public boolean success(State state){
begin = (puzzleState) state; //super.getCurState();
int[] temp = begin.getArray();
if(temp[0]==1 && temp[1]==2 && temp[2]==3 && temp[3]==8 && temp[4]==0 && temp[5]==4 && temp[6]==7 && temp[7]==6 && temp[8]==5 ){
return true;
}//end if
else{
return false;
}//end else
}
/**
*Accessor for the current state
*@return puzzleState
*/
public puzzleState getCurState() {
begin = (puzzleState)super.getCurState();
return begin;
}
/**
* Computes the heuristic value for a given state.
* This is using A* search.
* @param state a state to compute the heuristic for
* @return the heuristic value
*/
public int computeHeuristic(State state)
{
int md = 0;
begin = (puzzleState) state;
int[] temp = begin.getArray();
/**
*Calculating the number of moves the corresponding
*number is away from the goal state.
*Checking the first position.
**/
if (temp[0] == 1)
md += 0;
else if (temp[0] == 2)
md += 1;
else if (temp[0] == 3)
md += 2;
else if (temp[0] == 4)
md += 3;
else if (temp[0] == 5)
md += 4;
else if (temp[0] == 6)
md += 3;
else if (temp[0] == 7)
md += 2;
else if (temp[0] == 8)
md += 1;
/**
*Checking the second position
*/
if(temp[1] == 1)
md += 1;
else if(temp[1] == 2)
md += 0;
else if(temp[1] == 3)
md += 1;
else if(temp[1] == 4)
md += 2;
else if(temp[1] == 5)
md += 3;
else if(temp[1] == 6)
md += 2;
else if(temp[1] == 7)
md += 3;
else if(temp[1] == 8)
md += 2;
/**
*Checking the third position.
*/
if(temp[2] == 1)
md += 2;
else if(temp[2] == 2)
md += 1;
else if(temp[2] == 3)
md += 0;
else if(temp[2] == 4)
md += 1;
else if(temp[2] == 5)
md += 2;
else if(temp[2] == 6)
md += 3;
else if(temp[2] == 7)
md += 4;
else if(temp[2] == 8)
md += 3;
/**
*Checking the third position
*/
if(temp[3] == 1)
md += 1;
else if(temp[3] == 2)
md += 2;
else if(temp[3] == 3)
md += 3;
else if(temp[3] == 4)
md += 2;
else if(temp[3] == 5)
md += 3;
else if(temp[3] == 6)
md += 2;
else if(temp[3] == 7)
md += 1;
else if(temp[3] == 8)
md += 0;
/**
*Checking the fourth position.
*/
if(temp[4] == 1)
md += 2;
else if(temp[4] == 2)
md += 1;
else if(temp[4] == 3)
md += 2;
else if(temp[4] == 4)
md += 1;
else if(temp[4] == 5)
md += 2;
else if(temp[4] == 6)
md += 1;
else if(temp[4] == 7)
md += 2;
else if(temp[4] == 8)
md += 1;
/**
*Checking the fifth position.
*/
if (temp[5] == 1)
md += 3;
else if (temp[5] == 2)
md += 2;
else if (temp[5] == 3)
md += 1;
else if (temp[5] == 4)
md += 0;
else if (temp[5] == 5)
md += 1;
else if (temp[5] == 6)
md += 2;
else if (temp[5] == 7)
md += 3;
else if (temp[5] == 8)
md += 2;
/**
*Checking the sixth position.
*/
if (temp[6] == 1)
md += 2;
else if (temp[6] == 2)
md += 3;
else if (temp[6] == 3)
md += 4;
else if (temp[6] == 4)
md += 3;
else if (temp[6] == 5)
md += 2;
else if (temp[6] == 6)
md += 1;
else if (temp[6] == 7)
md += 0;
else if (temp[6] == 8)
md += 1;
/**
*Checking the seventh position.
*/
if (temp[7] == 1)
md += 3;
else if (temp[7] == 2)
md += 2;
else if (temp[7] == 3)
md += 3;
else if (temp[7] == 4)
md += 2;
else if (temp[7] == 5)
md += 1;
else if (temp[7] == 6)
md += 0;
else if (temp[7] == 7)
md += 1;
else if (temp[7] == 8)
md += 2;
/**
*Checking the eighth position.
*/
if (temp[8] == 1)
md += 4;
else if (temp[8] == 2)
md += 3;
else if (temp[8] == 3)
md += 2;
else if (temp[8] == 4)
md += 1;
else if (temp[8] == 5)
md += 0;
else if (temp[8] == 6)
md += 1;
else if (temp[8] == 7)
md += 2;
else if (temp[8] == 8)
{ md += 3; }
heur = md;
return md;
}
public String getIntroduction() {
return intro;
}
public int getHeur() {
return heur;
}
/**
*array for list of legal moves
*/
private static puzzleMove[] moveList = {new puzzleMove(puzzleMove.ML),new puzzleMove(puzzleMove.MR),new puzzleMove(puzzleMove.MU),new puzzleMove(puzzleMove.MD), new puzzleMove(puzzleMove.randM)};
/**
*a basic initial state to start the game with
*/
private static int[] puzzleInit = {2,4,5,1,3,7,6,8,0};//==randomizeState
//private static int[] puzzleInit = randomizeInitialState();
/**
*private var State init is the initial state and will be provided by either the basic example or the randomize function
*/
private static State init = new puzzleState(puzzleInit);
private static String intro = "Welcome to the 8 Puzzle!\n\nMove the blank tile to get the following configuration:\n\n1\t2\t3\n8\t \t4\n7\t6\t5\n";
}//end class
package puzzle;
import framework.*;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import java.util.*;
/**
This class is responsible for displaying the puzzle GUI.
*/
public class puzzleGUI implements UI{
/**
The problem.
*/
private puzzleProblem problems;
/**
The number of moves user has taken in solving the problem.
*/
private int moveCount;
/**
*The internal frame.
*/
public final JInternalFrame frame;
/**
Button Height
*/
private final int BUTTON_HIDTH = 10;
/**
Button Width
*/
private final int BUTTON_WIDTH = 30;
/**
Frame Width
*/
private final int FRAME_WIDTH = 600;
/**
Frame Height
*/
private final int FRAME_HIDTH = 500;
/**
* Strings for image filenames
*/
private final String Ione = "images/one.jpg";
private final String Itwo = "images/two.jpg";
private final String Ithree = "images/three.jpg";
private final String Ifour = "images/four.jpg";
private final String Ifive = "images/five.jpg";
private final String Isix = "images/six.jpg";
private final String Iseven = "images/seven.jpg";
private final String Ieight = "images/eight.jpg";
private final String Iblank = "images/blank.jpg";
public ImageIcon one = new ImageIcon(Ione);
public JLabel Jone = new JLabel(one);
public ImageIcon two = new ImageIcon(Itwo);
public JLabel Jtwo = new JLabel(two);
public ImageIcon three = new ImageIcon(Ithree);
public JLabel Jthree = new JLabel(three);
public ImageIcon four = new ImageIcon(Ifour);
public JLabel Jfour = new JLabel(four);
public ImageIcon five = new ImageIcon(Ifive);
public JLabel Jfive = new JLabel(five);
public ImageIcon six = new ImageIcon(Isix);
public JLabel Jsix = new JLabel(six);
public ImageIcon seven = new ImageIcon(Iseven);
public JLabel Jseven = new JLabel(seven);
public ImageIcon eight = new ImageIcon(Ieight);
public JLabel Jeight = new JLabel(eight);
public ImageIcon blank = new ImageIcon(Iblank);
public JLabel Jblank = new JLabel(blank);
public JPanel puzzlePanel = new JPanel();
public JPanel framePanel = new JPanel();
public JPanel buttonPanel = new JPanel();
public Container contentPane;
public GridLayout myGrid = new GridLayout(3,3,0,0);
public JTextArea intro, ePanel;
public String menu = "\n\nml=move blank left\nmr=move blank right\nmu=move blank up\nmd=move blank down";
/**
*constructor sets up a new GUI for the puzzle game
*@param puzzleProblem problem
*/
public puzzleGUI(puzzleProblem problem){
JButton moveL, moveR, moveU, moveD, random, solve, quit;
problems = problem;
problems.setUI(this);
moveCount = 1;
frame = new JInternalFrame();
contentPane = frame.getContentPane();
frame.setSize(FRAME_WIDTH, FRAME_HIDTH);
frame.setTitle("Puzzle Problem");
// JPanel framePanel = new JPanel();
framePanel.setLayout(new BorderLayout());
intro = new JTextArea();
intro.setText(problems.getIntroduction());
intro.setEditable(false);
intro.setBounds(25, 10, 400, 200);
framePanel.add(intro,BorderLayout.NORTH);
ePanel = new JTextArea();
ePanel.setText("InfoPanel:\nmoveCount:0"+menu);
ePanel.setEditable(false);
//ePanel.setBounds(25, 10, 400, 200);
framePanel.add(ePanel,BorderLayout.CENTER);
//JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
//GridLayout myGrid = new GridLayout(3,3,0,0);
puzzlePanel.setLayout(myGrid);
puzzlePanel.setBackground(Color.WHITE);
String buttonLabels = "ml mr mu md rand solve";
StringTokenizer parser = new StringTokenizer(buttonLabels);
while(parser.hasMoreTokens()){
final String label = parser.nextToken();
JButton keyButton = new JButton(label);
buttonPanel.add(keyButton);
keyButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent event){
problems.processCommand(label);
}
});
}//end while
quit = new JButton("Quit");
quit.setBounds(175, 350, BUTTON_WIDTH, BUTTON_HIDTH);
quit.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent event){
System.exit(0);
}});
buttonPanel.add(quit);
int[] tiles = problems.getCurState().getArray();
int i=0;
while (i<=8) {
puzzlePanel.add(getLabel(tiles));
i++;
}
framePanel.add(buttonPanel, BorderLayout.SOUTH);
framePanel.add(puzzlePanel, BorderLayout.WEST);
contentPane.add(framePanel);
frame.setDefaultCloseOperation(JInternalFrame.EXIT_ON_CLOSE);
frame.pack();
frame.show();
}//end constructor
/**
Accessor for the problem.
@return the problem.
*/
public puzzleProblem getProblem() {
return problems;
}
/**
Accessor for the move count
@return the move count.
*/
public int getMoveCount(){
return moveCount;
}
/**
*this method increments movecount and checks for success
*/
public void getCommand() {
moveCount++;
puzzleState current = problems.getCurState();
if(problems.success(current)){
JOptionPane.showMessageDialog(null, "Congratulations. You solved the problem in " + moveCount + " moves");//" and in " + time + " minutes.");
}
}
/**Displays Message to the user
*@param String
*/
public void displayMessage(String message){
JOptionPane.showMessageDialog(null,message);
}
/**
Gets the current state from the problem and displays it to the
user.
*/
public void update() {
problems.computeHeuristic(problems.getCurState());
int heur = problems.getHeur();
int[] tiles = problems.getCurState().getArray();
int i=0;
while (i<=8) {
puzzlePanel.add(getLabel(tiles));
i++;
}
ePanel.setText("InfoPanel:\nmoveCount:"+moveCount+"\nheuristic:"+heur+menu);
ePanel.updateUI();
puzzlePanel.updateUI();
}
/**
GetIcon gets the icon on the Jframe
*/
public JLabel getLabel(int label){
if (label == 0) {return Jblank;}
else if (label == 1) {return Jone;}
else if (label == 2) {return Jtwo;}
else if (label == 3) {return Jthree;}
else if (label == 4) {return Jfour;}
else if (label == 5) {return Jfive;}
else if (label == 6) {return Jsix;}
else if (label == 7) {return Jseven;}
else if (label == 8) {return Jeight;}
else return null;
}
/**
*Accessor for the internal frame
*/
public JInternalFrame getFrame() {
return frame;
}
}//end classحاولت كثر فيه على النتب بينز لكن ما طلع معي شي
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