Moving a jpg on a game board to the correct number of spaces

Question

I am currently doing a project for college and I am stuck. First of all I have a picture of a game board on screen. I have an array of objects which include position, x coord, y coord and instruction on each space. What I need to do is move a picture of a car the correct number of spaces that I have spun e.g if I spin a 3 then I would have to move 3 spaces. After I have draged the car I have to check if it is a valid move and if it is I have to follow the instructions on the space landed on. I was hoping someone could give me a few pointers in the right direction. Thanks
Anne

Answer 1

Here is a working example of something similar.
import java.awt.*;
import java.awt.Point;
import java.awt.event.*;
import java.util.*;
public class GameBoard extends Panel implements ActionListener {
     GameCanvas gcan = null;
     public GameBoard() {
          gcan = new GameCanvas(500,500);
          Button b1 = new Button("START.....");
          b1.addActionListener(this);
          setLayout(new BorderLayout(0,0));
          add(gcan, BorderLayout.CENTER);
          add(b1, BorderLayout.SOUTH);
     public static void main(String args[]) {
          Frame frm = new Frame();
          frm.add(new GameBoard());
          frm.pack();
          frm.show();
     public void actionPerformed(ActionEvent e) {
          gcan.start();
class GameCanvas extends Canvas {
     int width,height;
     java.util.List pcList = null;
     boolean started = false;
     Thread thread = null;
     public GameCanvas(int width, int height) {
          this.width=width;
          this.height=height;
          setSize(width,height);
     public void paint(Graphics g) {
          if(pcList == null) {
               pcList = createList();
          if(started) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).draw(g);
     public void update(Graphics g) {
          paint(g);
     public void delay(int d) {
          try { Thread.sleep(d);
          }catch(Exception e) { }
     public void inc() {
          if(pcList != null) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).inc(5);
                    delay(25);
                    repaint();
     public java.util.List createList() {
          java.util.List tmpList = new ArrayList();
          for(int col=0; col<width; col+=10) {
               for(int row=0; row<height; row+=10) {
                    tmpList.add(new Square( new Point(row,col), randColor(), 10));
          return tmpList;
     public Color randColor() {
          return ( new Color(rand(255),rand(255),rand(255) ));
     public int rand(int d) {
          return(  (int) (Math.random() * d) );
     public void start() {
          started = true;
          repaint();
          Runnable r = new Runnable() {
               public void run() {
                    while(true) {
                         inc();
          thread = new Thread(r);
          thread.start();
          repaint();
class Square {
     Color color = Color.blue;
     Point pnt = null;
     int size = 0;
     public Square(Point pnt, Color color, int size) {
          this.pnt=pnt;
          this.size=size;
          this.color=color;
     public void draw(Graphics g) {
          g.setColor(color);
          g.fillRect(pnt.x, pnt.y, pnt.x+size, pnt.y+size);
     public void inc(int d) {
          pnt.x += d;
          pnt.y += d;
}import java.awt.*;
import java.awt.Point;
import java.awt.event.*;
import java.util.*;
public class GameBoard extends Panel implements ActionListener {
     GameCanvas gcan = null;
     public GameBoard() {
          gcan = new GameCanvas(500,500);
          Button b1 = new Button("START.....");
          b1.addActionListener(this);
          setLayout(new BorderLayout(0,0));
          add(gcan, BorderLayout.CENTER);
          add(b1, BorderLayout.SOUTH);
     public static void main(String args[]) {
          Frame frm = new Frame();
          frm.add(new GameBoard());
          frm.pack();
          frm.show();
     public void actionPerformed(ActionEvent e) {
          gcan.start();
class GameCanvas extends Canvas {
     int width,height;
     java.util.List pcList = null;
     boolean started = false;
     Thread thread = null;
     public GameCanvas(int width, int height) {
          this.width=width;
          this.height=height;
          setSize(width,height);
     public void paint(Graphics g) {
          if(pcList == null) {
               pcList = createList();
          if(started) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).draw(g);
     public void update(Graphics g) {
          paint(g);
     public void delay(int d) {
          try { Thread.sleep(d);
          }catch(Exception e) { }
     public void inc() {
          if(pcList != null) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).inc(5);
                    delay(25);
                    repaint();
     public java.util.List createList() {
          java.util.List tmpList = new ArrayList();
          for(int col=0; col<width; col+=10) {
               for(int row=0; row<height; row+=10) {
                    tmpList.add(new Square( new Point(row,col), randColor(), 10));
          return tmpList;
     public Color randColor() {
          return ( new Color(rand(255),rand(255),rand(255) ));
     public int rand(int d) {
          return(  (int) (Math.random() * d) );
     public void start() {
          started = true;
          repaint();
          Runnable r = new Runnable() {
               public void run() {
                    while(true) {
                         inc();
          thread = new Thread(r);
          thread.start();
          repaint();
class Square {
     Color color = Color.blue;
     Point pnt = null;
     int size = 0;
     public Square(Point pnt, Color color, int size) {
          this.pnt=pnt;
          this.size=size;
          this.color=color;
     public void draw(Graphics g) {
          g.setColor(color);
          g.fillRect(pnt.x, pnt.y, pnt.x+size, pnt.y+size);
     public void inc(int d) {
          pnt.x += d;
          pnt.y += d;
}import java.awt.*;
import java.awt.Point;
import java.awt.event.*;
import java.util.*;
public class GameBoard extends Panel implements ActionListener {
     GameCanvas gcan = null;
     public GameBoard() {
          gcan = new GameCanvas(500,500);
          Button b1 = new Button("START.....");
          b1.addActionListener(this);
          setLayout(new BorderLayout(0,0));
          add(gcan, BorderLayout.CENTER);
          add(b1, BorderLayout.SOUTH);
     public static void main(String args[]) {
          Frame frm = new Frame();
          frm.add(new GameBoard());
          frm.pack();
          frm.show();
     public void actionPerformed(ActionEvent e) {
          gcan.start();
class GameCanvas extends Canvas {
     int width,height;
     java.util.List pcList = null;
     boolean started = false;
     Thread thread = null;
     public GameCanvas(int width, int height) {
          this.width=width;
          this.height=height;
          setSize(width,height);
     public void paint(Graphics g) {
          if(pcList == null) {
               pcList = createList();
          if(started) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).draw(g);
     public void update(Graphics g) {
          paint(g);
     public void delay(int d) {
          try { Thread.sleep(d);
          }catch(Exception e) { }
     public void inc() {
          if(pcList != null) {
               Iterator e = pcList.iterator();
               while(e.hasNext()) {
                    ((Square)e.next()).inc(5);
                    delay(25);
                    repaint();
     public java.util.List createList() {
          java.util.List tmpList = new ArrayList();
          for(int col=0; col<width; col+=10) {
               for(int row=0; row<height; row+=10) {
                    tmpList.add(new Square( new Point(row,col), randColor(), 10));
          return tmpList;
     public Color randColor() {
          return ( new Color(rand(255),rand(255),rand(255) ));
     public int rand(int d) {
          return(  (int) (Math.random() * d) );
     public void start() {
          started = true;
          repaint();
          Runnable r = new Runnable() {
               public void run() {
                    while(true) {
                         inc();
          thread = new Thread(r);
          thread.start();
          repaint();
class Square {
     Color color = Color.blue;
     Point pnt = null;
     int size = 0;
     public Square(Point pnt, Color color, int size) {
          this.pnt=pnt;
          this.size=size;
          this.color=color;
     public void draw(Graphics g) {
          g.setColor(color);
          g.fillRect(pnt.x, pnt.y, pnt.x+size, pnt.y+size);
     public void inc(int d) {
          pnt.x += d;
          pnt.y += d;
}Good Luck,
-- Ian