The document provides an overview of a Java application developed by Rashidul Islam, specifically focusing on classes used in a game called 'Sokoban'. It details class constructors and functionalities such as 'suitablelocation', 'crate', 'playercharacter', and 'obstacle', along with the graphical user interface setup within the 'panel' class. Additionally, it includes tasks that summarize screenshots of various game levels and class diagrams created in UML.

1. 12/1/2013
Rashidul Islam

2. No
Description
Page
Task 1
a)
The application that I produce
1
Task 2
a)
Screen shots
25
Task 3
a)
Class diagrams
Rashidul Islam
30

3. Task 1:
The application that I have created:
a) Class - SuitableLocation.java:
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Rashidul Islam

4. 1.) Documentation:
Constructor Summary
SuitableLocation(int i, int j)
b) Class - Crate.java:
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Rashidul Islam

5. 1.) Documentation:
Constructor Summary
Crate(int i, int j)
c) Class - PlayerCharacter.java:
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Rashidul Islam

6. 1.) Documentation:
sokobangame
Class PlayerCharacter
java.lang.Object
sokobangame.User
sokobangame.PlayerCharacter
public class PlayerCharacterextends sokobangame.User
Constructor Summary
PlayerCharacter(int i, int j)
Rashidul Islam

7. d) Class - Obstacle.java:
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1.) Documentation:
Constructor Summary
Obstacle(int i, int j)
Rashidul Islam

8. e) Class - User.java:
Rashidul Islam

9. Rashidul Islam

10. ---------------------------------------------------------------------------
1.) Documentation:
Constructor Summary
User(int x, int y)
---------------------------------------------------------------------------------------------f) Class - Panel.java:
--------------------------------------------------------------------------package sokobangame;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
/**import java.awt.event.ActionEvent;*/
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JPanel;
/**
*
*
* @author (Md. Rashidul Islam)
* @version ()
*/
Rashidul Islam

11. public class Panel extends JPanel {
/**
*
*/
// instance variables
//Attributes: instance variables of an object
/**
* Constructor for objects of class Panel
*/
private static final long serialVersionUID = 1L;
private final int OFFSET = 30;
private JButton btn1; /*type: JButton, variable: btn1 */
private JButton btn2;
private JButton btn3;
private JButton btn4;
private JButton btn5;
private JButton btn6;
private JButton btn7;
//private JButton btnQuit;
private final int SPACE = 20;
private final int LEFT_COLLISION = 1;
private final int RIGHT_COLLISION = 2;
private final int TOP_COLLISION = 3;
private final int BOTTOM_COLLISION = 4;
private ArrayList<Obstacle> obs = new ArrayList<Obstacle>();
private ArrayList<Crate> crates = new ArrayList<Crate>();
Rashidul Islam

12. private ArrayList<SuitableLocation> SuitLo = new
ArrayList<SuitableLocation>();
private PlayerCharacter PlayerChar;
private int w = 0;
private int h = 0;
private boolean solved = false;
private String stage =
" ######n"
+ " ## #n"
+ " ##$ #n"
+ " #### $##n"
+ " ## $ $ #n"
+ "#### # ## # ######n"
+ "## # ## ##### ..#n"
+ "## $ $
..#n"
+ "###### ### #@## ..#n"
+ " ## #########n"
+ " ########n";
public Panel() {
// initialise instance variables
addKeyListener(new TAdapter());
setFocusable(true);
initWorld();
}
/**
*/
public int getBoardWidth() {
return this.w;
}
public int getBoardHeight() {
return this.h;
}
Rashidul Islam

13. public final void initWorld() {
btn1 = new JButton("Level 1");
btn1.setBounds(10000, 1000, 200, 50);
this.add(btn1);
Font f = new Font("Courier New",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn1.setFont(f);
btn2 = new JButton("Level 2");
btn2.setBounds(10000, 1055, 200, 50);
this.add(btn2);
Font g = new Font("Monospaced",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn2.setFont(g);
btn3 = new JButton("Level 3");
btn3.setBounds(10000, 1110, 200, 50);
this.add(btn3);
Font n = new Font("Monospaced",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn3.setFont(n);
btn4 = new JButton("Level 4");
btn4.setBounds(500, 1165, 200, 50);
this.add(btn4);
Font m = new Font("Monospaced",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn4.setFont(m);
btn5 = new JButton("Level 5");
btn5.setBounds(500, 1220, 200, 50);
this.add(btn5);
Font j = new Font("Monospaced",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn5.setFont(j);
btn6 = new JButton("Steps");
Rashidul Islam

14. btn6.setBounds(500, 1275, 200, 50);
this.add(btn6);
Font k = new Font("Courier New",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn6.setFont(k);
btn7 = new JButton("Exit");
btn7.setBounds(500, 1330, 200, 50);
this.add(btn7);
Font l = new Font("Courier New",
Font.LAYOUT_LEFT_TO_RIGHT,24);
btn7.setFont(l);
/**btnQuit = new JButton("Quit");
btnQuit.setBounds(440, 380, 100, 50);
btnQuit.setFont(f);
btnQuit.addActionListener(this);
this.add(btnQuit);
this.setVisible(true);*/
}*/
/**public void actionPerformed(ActionEvent e)
{
if (e.getSource() == btnQuit)
System.exit(0);
int x = OFFSET;
int y = OFFSET;
Obstacle wall;
Crate b;
SuitableLocation a;
for (int i = 0; i < stage.length(); i++) {
char item = stage.charAt(i);
if (item == 'n') {
Rashidul Islam

15. y += SPACE;
if (this.w < x) {
this.w = x;
}
x = OFFSET;
} else if (item == '#') {
wall = new Obstacle(x, y);
obs.add(wall);
x += SPACE;
} else if (item == '$') {
b = new Crate(x, y);
crates.add(b);
x += SPACE;
} else if (item == '.') {
a = new SuitableLocation(x, y);
SuitLo.add(a);
x += SPACE;
} else if (item == '@') {
PlayerChar = new PlayerCharacter(x, y);
x += SPACE;
} else if (item == ' ') {
x += SPACE;
}
}
}
h = y;
public void buildWorld(Graphics g) {
g.setColor(new Color(0, 108, 209));
g.fillRect(0, 0, this.getWidth(), this.getHeight());
ArrayList<User> world = new ArrayList<User>();
world.addAll(obs);
world.addAll(SuitLo);
world.addAll(crates);
world.add(PlayerChar);
Rashidul Islam

16. for (int i = 0; i < world.size(); i++) {
User item = (User) world.get(i);
if ((item instanceof PlayerCharacter)
|| (item instanceof Crate)) {
g.drawImage(item.getImage(), item.x() + 2, item.y() + 2, this);
} else {
g.drawImage(item.getImage(), item.x(), item.y(), this);
}
if (solved) {
g.setColor(new Color(255,255,255));
g.drawString("The level has been solved!", 25, 20);
Font f = new Font("Courier New", Font.BOLD,14);
setFont(f);
}
}
}
@Override
public void paint(Graphics g) {
super.paint(g);
buildWorld(g);
}
class TAdapter extends KeyAdapter {
@Override
public void keyPressed(KeyEvent e) {
if (solved) {
return;
}
int key = e.getKeyCode();
Rashidul Islam

17. if (key == KeyEvent.VK_LEFT) {
if (checkWallCollision(PlayerChar,
LEFT_COLLISION)) {
return;
}
if (checkBagCollision(LEFT_COLLISION)) {
return;
}
PlayerChar.move(-SPACE, 0);
} else if (key == KeyEvent.VK_RIGHT) {
if (checkWallCollision(PlayerChar,
RIGHT_COLLISION)) {
return;
}
if (checkBagCollision(RIGHT_COLLISION)) {
return;
}
PlayerChar.move(SPACE, 0);
} else if (key == KeyEvent.VK_UP) {
if (checkWallCollision(PlayerChar,
TOP_COLLISION)) {
return;
}
if (checkBagCollision(TOP_COLLISION)) {
return;
}
PlayerChar.move(0, -SPACE);
Rashidul Islam

18. } else if (key == KeyEvent.VK_DOWN) {
if (checkWallCollision(PlayerChar,
BOTTOM_COLLISION)) {
return;
}
if (checkBagCollision(BOTTOM_COLLISION)) {
return;
}
PlayerChar.move(0, SPACE);
} else if (key == KeyEvent.VK_R) {
restartStage();
}
}
}
repaint();
private boolean checkWallCollision(User actor, int type) {
if (type == LEFT_COLLISION) {
for (int i = 0; i < obs.size(); i++) {
Obstacle wall = (Obstacle) obs.get(i);
if (actor.isLeftCollision(wall)) {
return true;
}
}
return false;
} else if (type == RIGHT_COLLISION) {
for (int i = 0; i < obs.size(); i++) {
Obstacle wall = (Obstacle) obs.get(i);
if (actor.isRightCollision(wall)) {
Rashidul Islam

19. }
return true;
}
return false;
} else if (type == TOP_COLLISION) {
for (int i = 0; i < obs.size(); i++) {
Obstacle wall = (Obstacle) obs.get(i);
if (actor.isTopCollision(wall)) {
return true;
}
}
return false;
} else if (type == BOTTOM_COLLISION) {
for (int i = 0; i < obs.size(); i++) {
Obstacle wall = (Obstacle) obs.get(i);
if (actor.isBottomCollision(wall)) {
return true;
}
}
return false;
}
}
return false;
private boolean checkBagCollision(int type) {
if (type == LEFT_COLLISION) {
for (int i = 0; i < crates.size(); i++) {
Crate bag = (Crate) crates.get(i);
if (PlayerChar.isLeftCollision(bag)) {
for (int j=0; j < crates.size(); j++) {
Crate item = (Crate) crates.get(j);
Rashidul Islam

20. if (!bag.equals(item)) {
if (bag.isLeftCollision(item)) {
return true;
}
}
if (checkWallCollision(bag,
LEFT_COLLISION)) {
return true;
}
}
}
bag.move(-SPACE, 0);
isSolved();
}
return false;
} else if (type == RIGHT_COLLISION) {
for (int i = 0; i < crates.size(); i++) {
Crate bag = (Crate) crates.get(i);
if (PlayerChar.isRightCollision(bag)) {
for (int j=0; j < crates.size(); j++) {
Crate item = (Crate) crates.get(j);
if (!bag.equals(item)) {
if (bag.isRightCollision(item)) {
return true;
}
}
if (checkWallCollision(bag,
RIGHT_COLLISION)) {
return true;
}
}
}
}
bag.move(SPACE, 0);
isSolved();
Rashidul Islam

21. return false;
} else if (type == TOP_COLLISION) {
for (int i = 0; i < crates.size(); i++) {
Crate bag = (Crate) crates.get(i);
if (PlayerChar.isTopCollision(bag)) {
for (int j = 0; j < crates.size(); j++) {
Crate item = (Crate) crates.get(j);
if (!bag.equals(item)) {
if (bag.isTopCollision(item)) {
return true;
}
}
if (checkWallCollision(bag,
TOP_COLLISION)) {
return true;
}
}
}
}
bag.move(0, -SPACE);
isSolved();
return false;
} else if (type == BOTTOM_COLLISION) {
for (int i = 0; i < crates.size(); i++) {
Crate bag = (Crate) crates.get(i);
if (PlayerChar.isBottomCollision(bag)) {
for (int j = 0; j < crates.size(); j++) {
Crate item = (Crate) crates.get(j);
if (!bag.equals(item)) {
if (bag.isBottomCollision(item)) {
Rashidul Islam

22. }
return true;
}
if (checkWallCollision(bag,
BOTTOM_COLLISION)) {
return true;
}
}
}
}
}
}
bag.move(0, SPACE);
isSolved();
return false;
public void isSolved() {
int num = crates.size();
int compl = 0;
for (int i = 0; i < num; i++) {
Crate bag = (Crate) crates.get(i);
for (int j = 0; j < num; j++) {
SuitableLocation area = (SuitableLocation) SuitLo.get(j);
if (bag.x() == area.x()
&& bag.y() == area.y()) {
compl += 1;
}
}
}
}
if (compl == num) {
solved = true;
repaint();
}
Rashidul Islam

23. public void restartStage() {
}
}
SuitLo.clear();
crates.clear();
obs.clear();
initWorld();
if (solved) {
solved = false;
}
1.) Documentation:
Constructor Summary
Panel()
g) Class - Game.java:
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Rashidul Islam

24. Rashidul Islam

25. ---------------------------------------------------------------------------
1.) Documentation:
Constructor Summary
Game()
private JButton btn1; private JButton btn2; private JButton btn3;
private JButton btn4; private JButton btn5; private JButton btn6; private
JButton btn7;
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Task 2:
Screen shots:
a) Level-1:
Fig: starting position
Rashidul Islam

26. Fig: Level Solved
b) Level-2:
Fig: starting position
Rashidul Islam

27. Fig: level solved
b) Level-3:
Fig: starting position
Rashidul Islam

28. Fig: level solved
c) Level-4:
Fig: starting position
Rashidul Islam

29. Fig: level solved
d) Level-5:
Fig: starting position
Rashidul Islam

30. Fig: starting position with buttons
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Task 3:
Class diagrams:
a) Class Diagram:
i)
Class Diagram or Design In UML Using StarUML:
Fig: Level 1
Rashidul Islam

31. Fig: Level One
Rashidul Islam

32. ii)
Testing Data By BlueJ:
Fig : Testing Data By BlueJ
Rashidul Islam

33. Rashidul Islam

34. Rashidul Islam