Thread: Car racing

Image Track = new ImageIcon("images/Track.gif").getImage();
Image Car1 = new ImageIcon("images/Red Car.png").getImage();
Image Car2 = new ImageIcon("images/Blue Car.png").getImage();

Originally Posted by KevinWorkman

Did you click the link? An SSCCE is a short, self-contained, compilable example. That means, narrow your problem down to just a few lines- in this case, the displaying of an image. It should be one complete file, and it should not include any extra stuff other than displaying an image.

Also, answer the questions you've already been answered- Norm is being extremely patient with you, and you should repay him by answering his questions as accurately as you can.

Ya..ok..I'll try my best..
I really appreciate for the help..
As myself is also trying to learn something to gain knwoledge from here.

That's part one. Where is this part?

Open a command prompt window, change to the folder with the images and enter the command: dir
Copy and paste the contents here:
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

Originally Posted by Norm

That's part one. Where is this part?

Open a command prompt window, change to the folder with the images and enter the command: dir
Copy and paste the contents here:
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

How to change the folder with the images..??
I'm in the command prompt window now..

In the command prompt window use the cd command to change directories.
Here is a sample of its usage:

 
D:\JavaDevelopment\Testing>cd ..
 
D:\JavaDevelopment>cd Testing
 
D:\JavaDevelopment\Testing>cd Security
The system cannot find the path specified.
 
D:\JavaDevelopment\Testing>cd images
 
D:\JavaDevelopment\Testing\images>dir
 Volume in drive D is Work
 Volume Serial Number is 1463-F5AE
 
 Directory of D:\JavaDevelopment\Testing\images
 
06/28/2010  02:21 PM    <DIR>          .
06/28/2010  02:21 PM    <DIR>          ..
04/14/2000  08:22 AM            19,189 AppletImg.jpg
09/17/1999  11:30 AM            76,756 ApproachToProperty.jpg
10/07/1998  04:20 PM            67,982 AreWeFriends.jpg
10/05/1997  11:35 PM             4,584 CoreJava1.1.gif
10/09/1997  10:05 PM            26,849 Core_Java.gif
10/09/1997  10:05 PM            28,038 Core_Java_rotated.gif
07/03/1997  02:49 PM             1,929 duke.gif
01/24/2000  05:29 PM             1,287 extendingTrail.gif
09/23/2003  01:39 PM            48,961 foxtrot.jpg
10/09/1998  09:52 AM            66,336 JungleWalk.jpg
07/27/2007  02:23 PM               172 left.gif
07/27/2007  02:23 PM               235 middle.gif
12/25/2001  09:33 AM             1,996 OneHundredBy.jpg
07/27/2007  02:23 PM               172 right.gif
06/29/2001  06:37 PM            27,959 worcester.jpg
              15 File(s)        372,445 bytes
               2 Dir(s)   1,407,864,832 bytes free
 
D:\JavaDevelopment\Testing\images>

C:\Users\Daniel>cd Pictures
 
C:\Users\Daniel\Pictures>dir
 Volume in drive C has no label.
 Volume Serial Number is 12F1-DFEB
 
 Directory of C:\Users\Daniel\Pictures
 
18/07/2011  22:35    <DIR>          .
18/07/2011  22:35    <DIR>          ..
16/08/2009  15:52             8,289 'HE' is risen...jpg
16/07/2011  21:42             1,151 Blue Car.png
30/06/2011  20:46            65,421 Capture_1.PNG
12/07/2011  19:57            83,231 Capture_2(1).PNG
12/07/2011  19:53            93,833 Capture_2(2).PNG
16/07/2011  21:42             1,146 Green Car.png
29/06/2011  20:52    <DIR>          My lovely bebe
16/07/2011  21:42             1,137 Red Car.png
17/07/2011  15:21            20,388 Track.gif
29/06/2011  20:52    <DIR>          ♥-?All Bout Me?-♥
               8 File(s)        274,596 bytes
               4 Dir(s)  29,999,800,320 bytes free
 
C:\Users\Daniel\Pictures>

Your code has: " images/Track.gif"

the image file location: C:\Users\Daniel\Pictures>

These are not the same!!! They must be the same.

My files are :
1. Blue Car.png
2. Green Car.png
3. Red Car.png
4. Track.gif

Originally Posted by Norm

Your code has: " images/Track.gif"

the image file location: C:\Users\Daniel\Pictures>

These are not the same!!! They must be the same.

So how do I need to link them so that it can be the same..??

Your program must have the path to where the image files are located on your computer.
You can use relative paths such as: images/<theImage>

Either move the images or change the name of the folder, or change the code.
Whatever you want to do so that the path in the program matches the path to the files on your computer.
If you don't understand how the folders and files are arranged on your computer, there is nothing I can do to help you. This is a very basic concept: Folders and subfolders and files.

I modified everything already..All the images can be displayed now..thanks so much..

Since now everything can display already, how to make these cars to move along the track..??

how to make these cars to move along the track

You'll some things for the cars to move.
The first would be a timer that will change their x,y position every small unit of time.
The second would be a definition of where the track is. This will require a lot of x,y positions to define the boundary of the track so you know when to go around curves etc.

Originally Posted by Norm

You'll some things for the cars to move.
The first would be a timer that will change their x,y position every small unit of time.
The second would be a definition of where the track is. This will require a lot of x,y positions to define the boundary of the track so you know when to go around curves etc.

Here is my latest modified code :

import javax.swing.*;
import java.awt.geom.*;
import java.awt.*;
public class RaceTrack extends JFrame
{
private RaceTrackPanel animation;
private JLabel betLabel, potLabel, bankLabel, carLabel;
private JTextField betField, carField, potField, bankField, winnerField;
private JButton goButton;
private JPanel p;
public RaceTrack( )
{
Image Track = new ImageIcon("C:/Users/Daniel/Pictures/Track.gif").getImage();
Image Car1 = new ImageIcon("C:/Users/Daniel/Pictures/Red Car.png").getImage();
Image Car2 = new ImageIcon("C:/Users/Daniel/Pictures/Blue Car.png").getImage();
Image Car3 = new ImageIcon("C:/Users/Daniel/Pictures/Green Car.png").getImage();
animation = new RaceTrackPanel(this, Track, Car1, Car2, Car3);
Container c = getContentPane();
c.setLayout(new BorderLayout( ));
p = new JPanel( );
p.setBackground(Color.lightGray);
GridBagLayout grid = new GridBagLayout();
p.setLayout(grid);
betLabel = new JLabel("Enter Bet");
carLabel = new JLabel("Choose Car");
potLabel = new JLabel("Pot");
bankLabel = new JLabel("Bank");
betField = new JTextField(5);
carField = new JTextField(2);
potField = new JTextField(5);
bankField = new JTextField(7);
winnerField = new JTextField(20);
potField.setEditable(false);
bankField.setEditable(false);
goButton = new JButton("Start Race");
GridBagConstraints gbc = new GridBagConstraints( );
gbc.fill = GridBagConstraints.BOTH;
gbc.insets = new Insets(5,5,5,5);
gblAdd(goButton,grid,gbc,0,0,4,1);
gbc.fill = GridBagConstraints.NONE;
gbc.anchor = GridBagConstraints.EAST;
gblAdd(betLabel,grid,gbc,0,1,1,1);
gbc.anchor = GridBagConstraints.WEST;
gblAdd(betField,grid,gbc,1,1,1,1);
gbc.anchor = GridBagConstraints.EAST;
gblAdd(carLabel,grid,gbc,2,1,1,1);
gbc.anchor = GridBagConstraints.WEST;
gblAdd(carField,grid,gbc,3,1,1,1);
gbc.anchor = GridBagConstraints.EAST;
gblAdd(potLabel,grid,gbc,0,2,1,1);
gbc.anchor = GridBagConstraints.WEST;
gblAdd(potField,grid,gbc,1,2,1,1);
gbc.anchor = GridBagConstraints.EAST;
gblAdd(bankLabel,grid,gbc,2,2,1,1);
gbc.anchor = GridBagConstraints.WEST;
gblAdd(bankField,grid,gbc,3,2,1,1);
gbc.anchor = GridBagConstraints.WEST;
gblAdd(winnerField,grid,gbc,0,3,4,1);
betField.setText("");
potField.setText("100");
bankField.setText("1000");
c.add("Center", animation);
c.add("South", p);
}
private void gblAdd(Component c, GridBagLayout
grid,GridBagConstraints gbc, int x, int y, int w, int h)
{
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = w;
gbc.gridheight = h;
p.add(c);
}
public static void main(String[] args)
{
JFrame f = new RaceTrack( );
f.setSize(600,480 );
f.show();
}}
class RaceTrackPanel extends JPanel
{
RaceTrack holder;
Image Track, Car1, Car2, Car3;
int Xpos, Ypos;
public RaceTrackPanel(RaceTrack app, Image Track,
Image Car1, Image Car2, Image Car3)
{
this.Track = Track;
this.Car1 = Car1;
this.Car2 = Car2;
this.Car3 = Car3;
setSize(600,250);
setBackground(Color.darkGray);
holder = app;
Xpos = 30;
Ypos = 30;
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
int w;
int h;
w = Track.getWidth(this);
h = Track.getHeight(this);
if ((w>0) && (h>0))
{
g.drawImage(Track, Xpos, Ypos, this);
}
w = Car1.getWidth(this);
h = Car2.getHeight(this);
if ((w>0) && (h>0))
{
g.drawImage(Car1, Xpos, Ypos +25, this);
g.drawImage(Car2, Ypos, Ypos +130, this);
g.drawImage(Car3, Ypos, Ypos +235, this);
}}}

Would you mind to help me with it..??
Because this x,y positions I was not really good in doing it to move them around the curves..

How are you changing the x,y positions of the cars as they move?
How are you defining the x,y positions of the curves

Originally Posted by Norm

How are you changing the x,y positions of the cars as they move?
How are you defining the x,y positions of the curves

I defined it as Xpos =30 and Ypos = 30..
After that I use the drawImage method to draw out the components of the cars and its x,y positions..
This is the part I was very confusing while I was doing this project..

I think it might be useful for you in learning how to animate your program to look at one of the many bouncing ball programs that exist. Search on this forum or google for example codes that will help you understand how to use a timer and how to change the values of x,y to do the animation.

Do you have the source on it..??

Search on this forum or google for example codes

Or would you mind to instruct me directly using the modified code dat I just posted in post#66..??

You need to concentrate on the animation part only. The rest of your code would be in the way.
Start with using a Swing Timer to change the x,y positions of the images and then call repaint() to show the changes.

Mind to show me some examples on the timers with x,y positions especially for this car race application..??