[Snake]Help

**Totel** · September 23rd, 2012, 06:47 PM

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.Random;
import java.io.*;
import java.awt.Color;
import java.awt.event.ActionEvent;
 
	public class Snakes extends JPanel implements ActionListener,KeyListener{
 
	Timer tmr = new Timer(10, this);
	Timer tm = new Timer(10,this);
	static JFrame frame = new JFrame();
	static JButton btnStart; 	
	static JLabel ScoreLabel;
	static int x1=20, y1=20, w1=20, h1=20;
	static int x2=20, y2=20, w2=20, h2=20;
	static int RandomBox = 0;
	static int score = 0;
	static int direction = 0;
	Random randomGenerator = new Random();
 
	public Snakes()
	{
	ScoreLabel = new JLabel ("Score:");
	ScoreLabel.setBounds(5,445,100,20);
	add(ScoreLabel);
	tmr.start();
	setLayout(null);		
	this.requestFocus();
	addKeyListener(this);
	setFocusable(true);
	setFocusTraversalKeysEnabled(false);
	}
public int x2Generator(int x2,Random randomGenerator,int RandomBox) {
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			x2 = 340;	
		}	
 
		else if(RandomBox==2) 
		{
			x2 = 135;
		}
 
		else if(RandomBox==3) 
		{
			x2 = 405;
		}
 
		else if(RandomBox==4) 
		{
			x2 = 420;
		}
 
		else if(RandomBox==5) 
		{
			x2 = 375;
		}
 
		return x2;
		}
 
public int y2Generator(int y2,Random randomGenerator,int RandomBox) {
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			y2 = 95;	
		}	
 
		else if(RandomBox==2) 
		{
			y2 = 400;
		}
 
		else if(RandomBox==3) 
		{
			y2 = 425;
		}
 
		else if(RandomBox==4) 
		{
			y2 = 170;
		}
 
		else if(RandomBox==5) 
		{
			y2 = 440;
		}	
		return y2;
		}
 
 
 
	public void paintComponent(Graphics g)
        {
        super.paintComponent(g);
        tm.start();
 
		g.setColor(Color.BLACK);
		g.fillRect(x1, y1, w1, h1);
 
		g.setColor(Color.BLUE);
		g.fillRect(x2, y2, w2, h2);
 
	}
	public void keyPressed(KeyEvent e) 
	{
	if(e.getKeyCode()==KeyEvent.VK_RIGHT) 
	{
		direction=1;
	}
 
 
 
	else if(e.getKeyCode()==KeyEvent.VK_LEFT) 
	{
		direction=2;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_UP) 
	{
		direction=3;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_DOWN) 
	{
		direction=4;
	}
 
	}
 
        public void keyTyped(KeyEvent e)
	{
	}
	public void keyReleased(KeyEvent e)
	{
        }
	public void delay() 
	{
		try
	{
	Thread.sleep(100);
	}
	catch(Exception e)
	{
	}
 
	}
 
	public static void main (String args[]) 
	{
          Snakes obj = new Snakes();  
          frame.setSize(500,500);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setVisible(true);
          frame.add(obj);     
        }
	public void actionPerformed(ActionEvent e)
	{
 
//Reset position of Snake in x and y through frame
	if(x1<0)
	{
		x1=490;
	}
	if(x1>490)
		{ 
			x1=0;
		}
	if(y1<0) 
	{
		y1=460;
	}
	if(y1>460)
		{
			y1=0;
 
		}
 
//Snake Arrow up, down, left, right		
	if(direction==1) 
	{
		x1=x1+1;	
	}
 
	if(direction==2) 
	{
		x1=x1-1;
	}
 
	if(direction==3) 
	{
		y1=y1-1;
	}
 
	if(direction==4) 
	{
		y1=y1+1;	
	}
 
 
//Snake and Random Box
		if((x1==x2)&&(y1==y2)) 
		{
		x2 = x2Generator(x2, randomGenerator, RandomBox);
		y2 = y2Generator(y2, randomGenerator, RandomBox);
		score = score +1;
		ScoreLabel.setText("Score: "+score);
		}
		repaint();
 
}
}

Give me a hint or please just post a code how to add tail
and please fix the score for me

----------------------------------------------------------------------

After some hours my snake has a tail. I still have a problem the whole Body/Tail including the head, it can go Up, Down, Left, Right, now my problem
is, it moves in one direction. Here's my new code.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.Random;
import java.io.*;
import java.awt.Color;
import java.awt.event.ActionEvent;
 
	public class Snakes extends JPanel implements ActionListener, KeyListener{
 
	Timer tmr = new Timer(500, this);
	Timer tm = new Timer(10,this);
	static JFrame frame = new JFrame();
	static JButton btnStart; 	
	static JLabel ScoreLabel;
	static int x1=20, y1=20, w1=20, h1=20;
	static int x2=20, y2=20, w2=20, h2=20;
	static int RandomBox = 0;
	static int score = 0;
	static int direction = 0;
	Random randomGenerator = new Random();
 
	public Snakes()
	{
	JOptionPane.showMessageDialog(null, "Start");
	ScoreLabel = new JLabel ("Score:");
	ScoreLabel.setBounds(5,445,100,20);
	add(ScoreLabel);
	setLayout(null);		
	this.requestFocus();
	addKeyListener(this);
	setFocusable(true);
	setFocusTraversalKeysEnabled(false);
	}
	public int x2Generator(int x2,Random randomGenerator,int RandomBox) 
		{
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			x2 = 340;		
		}	
 
		else if(RandomBox==2) 
		{
			x2 = 135;
		}
 
		else if(RandomBox==3) 
		{
			x2 = 405;
		}
 
		else if(RandomBox==4) 
		{
			x2 = 420;
		}
 
		else if(RandomBox==5) 
		{
			x2 = 375;
		}
 
		return x2;
		}
 
		public int y2Generator(int y2,Random randomGenerator,int RandomBox) {
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			y2 = 95;	
		}	
 
		else if(RandomBox==2) 
		{
			y2 = 400;
		}
 
		else if(RandomBox==3) 
		{
			y2 = 425;
		}
 
		else if(RandomBox==4) 
		{
			y2 = 170;
		}
 
		else if(RandomBox==5) 
		{
			y2 = 440;
		}	
		return y2;
		}
 
 
	public void paintComponent(Graphics g)
    	{
        super.paintComponent(g);
        tm.start();
 
		g.setColor(Color.BLACK);
		g.fillOval(x1, y1, w1, h1);
 
		g.setColor(Color.RED);
		g.fillRect(x2, y2, w2, h2);
 
	}
	public void keyPressed(KeyEvent e) 
	{
	if(e.getKeyCode()==KeyEvent.VK_RIGHT) 
	{
		direction=1;
	}
 
 
 
	else if(e.getKeyCode()==KeyEvent.VK_LEFT) 
	{
		direction=2;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_UP) 
	{
		direction=3;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_DOWN) 
	{
		direction=4;
	}
 
	}
 
    	public void keyTyped(KeyEvent e)
	{
	}
	public void keyReleased(KeyEvent e)
	{
    	}
	public void delay() 
	{
		try
	{
	Thread.sleep(5);
	}
	catch(Exception e)
	{
	}
 
	}
 
	public static void main (String args[]) 
	{
    	Snakes obj = new Snakes();  
    	frame.setSize(500,500);
    	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	frame.setVisible(true);
    	frame.add(obj);     
    	}
	public void actionPerformed(ActionEvent e)
	{
	//Reset position of Snake in x and y through frame
	if(x1<0)
	{
		x1=490;
	}
	if(x1>490)
		{ 
			x1=0;
		}
	if(y1<0) 
	{
		y1=460;
	}
	if(y1>460)
		{
			y1=0;
 
		}	
	//Up, down, left, right
	if(direction==1) 
	{
		x1=x1+1;
		delay();	
	}
 
	if(direction==2) 
	{
		x1=x1-1;
		delay();
	}
 
	if(direction==3) 
	{
		y1=y1-1;
		delay();
	}
 
	if(direction==4) 
	{
		y1=y1+1;
		delay();	
	}
		//Snake tail and Random Box
		if(y2+h2>=y1&&x2+w2>=x1&&x2<=x1+w1&&y2<=y1||y2<=0)
		{
		x2 = x2Generator(x2, randomGenerator, RandomBox);
		y2 = y2Generator(y2, randomGenerator, RandomBox);
 
		w1=w1+20;
		ScoreLabel.setText("Score: "+score);
		score = score +1;
		}
		repaint();
 
 
}
}

PS: Please give me a hint or fix the code for me

**Norm** · September 23rd, 2012, 07:50 PM

Please explain the problem with the code. What does it do or not do that you want to change?

**Totel** · September 24th, 2012, 04:40 AM

Originally Posted by Norm

Please explain the problem with the code. What does it do or not do that you want to change?

I stated my new question in my first post including my new code please help

**Norm** · September 24th, 2012, 06:51 AM

my problem
is, it moves in one direction

Please explain what you want the code to do.

**Totel** · September 24th, 2012, 07:12 AM

Originally Posted by Norm

Please explain what you want the code to do.

Try to run my code and you'll understand what I am trying to explain, I'm sorry I have bad English grammar. I actually don't know how do you want me to explain it. If you ran my code, you will notice that the head of the snake don't rotate instead it moves in 1 direction. Yes it goes UP,DOWN, LEFT, RIGHT but as what I've said it only moves in 1 direction.

**Norm** · September 24th, 2012, 07:19 AM

Sorry, I don't understand what the problem is.

Yes it goes UP,DOWN, LEFT, RIGHT but as what I've said it only moves in 1 direction.

If it moves in all directions, what do you want to change?

Do you mean you want the moving shape to have a "head" that is always in front when the shape is moving? That would be done in the paintComponent() method.

**Totel** · September 24th, 2012, 07:26 AM

Originally Posted by Norm

Sorry, I don't understand what the problem is.

If it moves in all directions, what do you want to change?

Do you mean you want the moving shape to have a "head" that is always in front when the shape is moving? That would be done in the paintComponent() method.

Yes I want the head always be in front every time I eat the random food.
can be done in paintComponent() ? how is that :O

**Norm** · September 24th, 2012, 07:32 AM

You will have to tell paintComponent() what direction the shape is moving so it knows where to draw the "head". Take a piece of paper and draw on it the 4 different shapes, one shape for each direction. Then work out the code that will draw the shape for that direction. In paintComponent, test what direction the shape is moving and use the code that draws the shape with the head pointed in the correct direction.

**Totel** · September 24th, 2012, 08:03 AM

260tqia.jpg

If you will see in the First Drawing Snake bents and the head is always in front to eat the food, while in the 2nd Drawing that's actually kinda same as mine I just used Oval in my codes instead of Rect. Now my question is how can my snake bend/rotate and make the head always in front to eat the random food.

PS : I don't have any idea how to make it and by the way I prefer to have the 2nd
Drawing Snake to appear in my frame.

**Norm** · September 24th, 2012, 08:23 AM

how can my snake bend/rotate and make the head always in front to eat the random food.

Use a piece of paper to draw the shapes you want to see with the head in front.
Then write the code for the paintComponent() method to draw that shape.
If you want separate the snake to be made of more than one drawn shape, that will be more work. Save that for later.

Start with the simpler single shape with a head on the end that the snake is moving towards. Perhaps draw in an eye to show where the head is. You have to use a piece of paper and draw the shapes on it so you get the x,y values needed for the paintComponent() method.

**Totel** · September 24th, 2012, 07:32 PM

Until now I can't get it, It sucks

**Norm** · September 24th, 2012, 07:36 PM

Look at the drawings you made of the shape when it is going horizontally and vertically
and then look the the fillOval() method call to see how it can be used to draw one way or the other.

What width and height should be used for drawing each orientation? Look at your drawings.

**Totel** · September 25th, 2012, 06:33 AM

Originally Posted by Norm

Look at the drawings you made of the shape when it is going horizontally and vertically
and then look the the fillOval() method call to see how it can be used to draw one way or the other.

What width and height should be used for drawing each orientation? Look at your drawings.

Do I need to declare a bolean

boolean left = false;
   boolean right = true;
     boolean up = false;
    boolean down = false;

And add this code under public void keyPressed(KeyEvent e)

&& (!right)) 
{
        left = true;
        up = false;
        down = false;
}

Sorry I still don't know what to do I need to pass this tomorrow.

**Norm** · September 25th, 2012, 06:46 AM

The code has a direction variable that has 4 values, one for each direction. You can us that.

**Totel** · September 25th, 2012, 07:08 AM

Originally Posted by Norm

The code has a direction variable that has 4 values, one for each direction. You can us that.

It will become like this ?

Declaration :

static boolean left = false;
    static boolean right = true;
    static boolean up = false;
    static boolean down = false;

public void keyPressed(KeyEvent e) 
	{
	if((e.getKeyCode()==KeyEvent.VK_RIGHT) && (!right)) {
                left = true;
                up = false;
                down = false;
		direction=1;
	}
 
 
 
	else if((e.getKeyCode()==KeyEvent.VK_LEFT) && (!left)) {
                right = true;
                up = false;
                down = false;
                direction=2;
	}
 
 
	else if((e.getKeyCode()==KeyEvent.VK_UP) && (!down)) {
                up = true;
                right = false;
                left = false;
                direction=3;
	}
 
 
	else if((e.getKeyCode()==KeyEvent.VK_DOWN) && (!up)) {
                down = true;
                right = false;
                left = false; 
		direction=4;
	}
 
	}

**Norm** · September 25th, 2012, 07:22 AM

What is wrong with the direction variable? Why do you want to add more variables?

I would suggest that you use an enum for this:

 
   enum Direction {NONE, UP, DOWN, LEFT, RIGHT}   
 ...
	static Direction direction = Direction.NONE;       
...
	if(e.getKeyCode()==KeyEvent.VK_RIGHT) 	{
		direction=Direction.RIGHT;    
...     
	if(direction==Direction.RIGHT)     	{
		x1=x1+1;

Then use the value of direction in the paintComponent() to control how the shape is drawn.
If moving horizontally, draw the length in the x direction.
If move vertically, draw the length in the y direction.

**Totel** · September 25th, 2012, 07:58 AM

I will declare this ?

static Direction direction = Direction.NONE;

I don't know the use and I don't know where to put this

 public enum Direction
 {
 NONE, UP, DOWN, LEFT, RIGHT
 }

I added this already each of my keys.

if(e.getKeyCode()==KeyEvent.VK_RIGHT) 	{
		direction=Direction.RIGHT;
               }

**jps** · September 25th, 2012, 08:17 AM

Try using a search engine for keywords you find in code snippets you don't understand. Learn what the used classes and methods are for by reading through the results. There is a wealth of information available and plenty of examples if you just look for them. This one for example:
Enum Types

**Totel** · September 25th, 2012, 08:28 AM

Originally Posted by jps

Try using a search engine for keywords you find in code snippets you don't understand. Learn what the used classes and methods are for by reading through the results. There is a wealth of information available and plenty of examples if you just look for them. This one for example:
Enum Types

It doesn't matter now I did a trial and error in my program and I knew now the use of it.

I don't get what Norm said

Then use the value of direction in the paintComponent() to control how the shape is drawn. If moving horizontally, draw the length in the x direction.
If move vertically, draw the length in the y direction.

**Norm** · September 25th, 2012, 08:44 AM

First you need to test using the fillOval() method to see how to draw a shape that is moving in the vertical direction. The current code draws the shape moving in a horizontal direction.

When you get that working, do something like this:
if moving horizontally(for example direction = LEFT), draw shape in horizontal orientation
if moving vertically(for example direction = UP), draw the shape in a vertical orientation

**Totel** · September 25th, 2012, 10:10 AM

Originally Posted by Norm

First you need to test using the fillOval() method to see how to draw a shape that is moving in the vertical direction. The current code draws the shape moving in a horizontal direction.

When you get that working, do something like this:
if moving horizontally(for example direction = LEFT), draw shape in horizontal orientation
if moving vertically(for example direction = UP), draw the shape in a vertical orientation

I really can't do it. I gave up already, I think this is enough maybe my professor
will still grade my program even with a below passing grade could be a consideration
from the effort I did, Hehe. I really appreciated your help thank you very much even
I didn't make it until next time dude. I will probably ask your help again I will post my
coming projects here sooner or later.

By the way here is my last update code in snake haha

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.Random;
import java.io.*;
import java.awt.Color;
import java.awt.event.ActionEvent;
 
	public class Snakes extends JPanel implements ActionListener, KeyListener{
 
	Timer tmr = new Timer(50, this);
	Timer tm = new Timer(50,this);
	static JFrame frame = new JFrame();	
	static JLabel ScoreLabel;
	static int x1=20, y1=20, w1=20, h1=20;
	static int x2=20, y2=20, w2=20, h2=20;
	static int RandomBox = 0;
	static int score = 0;
	static Direction direction = Direction.NONE;
	Random randomGenerator = new Random();
 
	public Snakes()
	{
	JOptionPane.showMessageDialog(null, "Start");
	ScoreLabel = new JLabel ("Score:");
	ScoreLabel.setBounds(5,445,100,20);
	add(ScoreLabel);
	setLayout(null);		
	this.requestFocus();
	addKeyListener(this);
	setFocusable(true);
	setFocusTraversalKeysEnabled(false);
	}
	public int x2Generator(int x2,Random randomGenerator,int RandomBox) 
		{
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			x2 = 340;		
		}	
 
		else if(RandomBox==2) 
		{
			x2 = 135;
		}
 
		else if(RandomBox==3) 
		{
			x2 = 405;
		}
 
		else if(RandomBox==4) 
		{
			x2 = 420;
		}
 
		else if(RandomBox==5) 
		{
			x2 = 375;
		}
 
		return x2;
		}
 
		public int y2Generator(int y2,Random randomGenerator,int RandomBox) {
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			y2 = 95;	
		}	
 
		else if(RandomBox==2) 
		{
			y2 = 400;
		}
 
		else if(RandomBox==3) 
		{
			y2 = 425;
		}
 
		else if(RandomBox==4) 
		{
			y2 = 170;
		}
 
		else if(RandomBox==5) 
		{
			y2 = 440;
		}	
		return y2;
		}
 
 
	public void paintComponent(Graphics g)
    	{
        super.paintComponent(g);
        tm.start();
 
		g.setColor(Color.BLACK);
		g.fillRect(x1, y1, w1, h1);
 
		g.setColor(Color.RED);
		g.fillRect(x2, y2, w2, h2);
		}
 
 
	public enum Direction 
	{
	NONE, UP, DOWN, LEFT, RIGHT
	}
	public void keyPressed(KeyEvent e) 
	{
	if(e.getKeyCode()==KeyEvent.VK_RIGHT) 
	{
		direction=Direction.RIGHT;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_LEFT) 
	{
		direction=Direction.LEFT;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_UP) 
	{
		direction=Direction.UP;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_DOWN) 
	{
		direction=Direction.DOWN;
	}
 
	}
 
    public void keyTyped(KeyEvent e)
	{
	}
	public void keyReleased(KeyEvent e)
	{
    }
	public void delay() 
	{
		try
	{
	Thread.sleep(50);
	}
	catch(Exception e)
	{
	}
 
	}
 
	public static void main (String args[]) 
		{
    	Snakes obj = new Snakes();  
    	frame.setSize(500,500);
    	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	frame.setVisible(true);
    	frame.add(obj);     
    	}
	public void actionPerformed(ActionEvent e)
	{
	//Reset position of Snake in x and y through frame
	if(x1<0)
	{
		x1=490;
	}
	if(x1>490)
		{ 
			x1=0;
		}
	if(y1<0) 
	{
		y1=460;
	}
	if(y1>460)
		{
			y1=0;
 
		}	
	//Up, down, left, right
	if(direction==Direction.RIGHT) 
	{
		x1=x1+5;
		delay();
	}
 
	if(direction==Direction.LEFT) 
	{
		x1=x1-5;
		delay();
	}
 
	if(direction==Direction.UP) 
	{
		y1=y1-5;
		delay();
	}
 
	if(direction==Direction.DOWN) 
	{
		y1=y1+5;
		delay();
	}
		//Snake tail and Random Box
		if(y2+h2>=y1&&x2+w2>=x1&&x2<=x1+w1&&y2<=y1||y2<=0)
		{
		x2 = x2Generator(x2, randomGenerator, RandomBox);
		y2 = y2Generator(y2, randomGenerator, RandomBox);
 
		w1=w1+20;
		ScoreLabel.setText("Score: "+score);
		score = score +1;
		}
		repaint();
 
 
}
}

**Norm** · September 25th, 2012, 10:25 AM

Can you code the fillRect() method to draw different rectangles?
Write code for these two cases using a width of 20 and a length of 50
One that is horizontally oriented (longer in the x direction)
and one that is vertically oriented (longer in the y direction)

**Totel** · September 26th, 2012, 07:52 AM

Originally Posted by Norm

Can you code the fillRect() method to draw different rectangles?
Write code for these two cases using a width of 20 and a length of 50
One that is horizontally oriented (longer in the x direction)
and one that is vertically oriented (longer in the y direction)

I'm really glad and thankful because our professor gave us another chance to finish this program until Monday next week, the sad thing is he gave us another homework which will be look like a Battle City game not really alike but, it is falling objects/shapes with 1 block on the bottom of the frame that can be move from left to right and it should fire the falling objects using "Space Bar Key" . Anyways it's not the topic here since it's about Snake Game. I need your help again, look at my updated code. I made something different and I guess it moves Horizontal and Vertical there is still a problem when I eat the Food the snake grows but when I move it to other directions the snake goes back to it's own size.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.Random;
import java.io.*;
import java.awt.Color;
import java.awt.event.ActionEvent;
 
	public class Snakes extends JPanel implements ActionListener, KeyListener{
 
	Timer tmr = new Timer(50, this);
	Timer tm = new Timer(50,this);
	static JFrame frame = new JFrame();	
	static JLabel ScoreLabel;
	static int x1=20, y1=20, w1=10, h1=20;
	static int x2=20, y2=20, w2=20, h2=20;
	static int RandomBox = 0;
	static int score = 0;
	static Direction direction = Direction.NONE;
	Random randomGenerator = new Random();
 
	public Snakes()
	{
	JOptionPane.showMessageDialog(null, "Start");
	ScoreLabel = new JLabel ("Score:");
	ScoreLabel.setBounds(5,445,100,20);
	add(ScoreLabel);
	setLayout(null);		
	this.requestFocus();
	addKeyListener(this);
	setFocusable(true);
	setFocusTraversalKeysEnabled(false);
	}
	public int x2Generator(int x2,Random randomGenerator,int RandomBox) 
		{
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			x2 = 340;		
		}	
 
		else if(RandomBox==2) 
		{
			x2 = 135;
		}
 
		else if(RandomBox==3) 
		{
			x2 = 405;
		}
 
		else if(RandomBox==4) 
		{
			x2 = 420;
		}
 
		else if(RandomBox==5) 
		{
			x2 = 375;
		}
 
		return x2;
		}
 
		public int y2Generator(int y2,Random randomGenerator,int RandomBox) {
 
		RandomBox = randomGenerator.nextInt(5)+1;
		if(RandomBox==1) 
		{
			y2 = 95;	
		}	
 
		else if(RandomBox==2) 
		{
			y2 = 400;
		}
 
		else if(RandomBox==3) 
		{
			y2 = 425;
		}
 
		else if(RandomBox==4) 
		{
			y2 = 170;
		}
 
		else if(RandomBox==5) 
		{
			y2 = 440;
		}	
		return y2;
		}
 
 
	public void paintComponent(Graphics g)
    	{
        super.paintComponent(g);
        tm.start();
 
		g.setColor(Color.BLACK);
		g.fillRect(x1, y1, w1, h1);
 
		g.setColor(Color.RED);
		g.fillRect(x2, y2, w2, h2);
		}
 
 
	public enum Direction 
	{
	NONE, UP, DOWN, LEFT, RIGHT
	}
	public void keyPressed(KeyEvent e) 
	{
	if(e.getKeyCode()==KeyEvent.VK_RIGHT) 
	{
		direction=Direction.RIGHT;
		 w1=20;
	   	 h1=10;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_LEFT) 
	{
		direction=Direction.LEFT;
		w1=20;
	        h1=10;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_UP) 
	{
		direction=Direction.UP;
		w1=10;
	        h1=20;
	}
 
 
	else if(e.getKeyCode()==KeyEvent.VK_DOWN) 
	{
		direction=Direction.DOWN;
		w1=10;
	        h1=20;
	}
 
	}
 
    public void keyTyped(KeyEvent e)
	{
	}
	public void keyReleased(KeyEvent e)
	{
    }
	public void delay() 
	{
		try
	{
	Thread.sleep(50);
	}
	catch(Exception e)
	{
	}
 
	}
 
	public static void main (String args[]) 
		{
    	Snakes obj = new Snakes();  
    	frame.setSize(500,500);
    	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	frame.setVisible(true);
    	frame.add(obj);     
    	}
	public void actionPerformed(ActionEvent e)
	{
	//Reset position of Snake in x and y through frame
	if(x1<0)
	{
		x1=490;
	}
	if(x1>490)
		{ 
			x1=0;
		}
	if(y1<0) 
	{
		y1=460;
	}
	if(y1>460)
		{
			y1=0;
 
		}	
	//Up, down, left, right
	if(direction==Direction.RIGHT) 
	{
		x1=x1+5;
		delay();
	}
 
	if(direction==Direction.LEFT) 
	{
		x1=x1-5;
		delay();
	}
 
	if(direction==Direction.UP) 
	{
		y1=y1-5;
		delay();
	}
 
	if(direction==Direction.DOWN) 
	{
		y1=y1+5;
		delay();
	}
		//Snake tail and Random Box
		if(y2+h2>=y1&&x2+w2>=x1&&x2<=x1+w1&&y2<=y1||y2<=0)
		{
		x2 = x2Generator(x2, randomGenerator, RandomBox);
		y2 = y2Generator(y2, randomGenerator, RandomBox);
 
		w1=w1+20;
		ScoreLabel.setText("Score: "+score);
		score = score +1;
		}
		repaint();
 
 
}
}

**Norm** · September 26th, 2012, 09:17 AM

Try debugging the code by adding println statements that print out the values of the variables that are used to determine the size of the snake every time they are changed. The print out will show you where the code is doing the wrong thing.

The variable names x1, x2 etc should be named for what they are used for: snakeX and foodX etc

The variables for the snake should be:
its width (a constant that does not change)
its length (changes as food eaten)
The paintComponent() method should use the above in the fillRect() method calls according to the direction the snake is moving.

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