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Wednesday 16 September 2015

Moving Balls From Corners Using Java 2D


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package packagename;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
 *
 * @Aravind Sankaran Nair
 */
public class Game extends JPanel{
int x=0;
int y=0;
int xa=30;
int ya=30;
int xxa=60;
int yya=60;
int ballRadius=30;
    public Game() {
        this.setPreferredSize(new Dimension(320, 400));
    }
void grow(){
    x=x+1;
    y=y;
}
    /**
     * @param args the command line arguments
     */
   void moveTowardsBorder(){
       if(x>=0&&x<=(300-(ballRadius+20))){
           x=x+1;
           y=y;
          
       }
      
       if(x==251&&y>=0&&y<=(400-(ballRadius)-40)){
           x=x;
           y=y+1;
       }
       if(y==331&&x<=251&&x>=0){
           y=y;
           x=x-2;
       }
       if(x==-1&&y>=y){
           if(y!=0){
           x=x;
           y=y-1;}
           else{
               x=0;
               y=0;
           }
       }
       //
       if(xa==30&&ya>=0&&ya<=300){
           xa=xa;
           ya=ya+1;          
       }
       if(ya==301&&xa>=0&&xa<=230){
           ya=ya;
           xa=xa+1;
       }
       if(xa==231&&ya<=301){
           if(ya!=30){
           ya=ya-1;
           xa=xa;}
       }
       if(ya==30&xa<=231){
           xa=xa-1;
           ya=ya;
       }
     

       if(xxa>=60&&xxa<=(250-(ballRadius+20))){
           xxa=xxa+1;
           yya=yya;          
       }
       if(xxa==201&&yya>=0&&yya<=260){
           xxa=xxa;
           yya=yya+1;
       }
       if(yya==261&&xxa<=201&&xxa>=60){
           yya=yya;
           xxa=xxa-2;
       }
       if(xxa==59&&yya>=yya){
           if(yya!=60){
               xxa=xxa;
               yya=yya-1;
           }else{
               xxa=60;
               yya=60;
           }
       }
       System.out.println("xxa=="+x);
       System.out.println("yya=="+y);
   }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        Graphics2D g2d=(Graphics2D)g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,   RenderingHints.VALUE_ANTIALIAS_ON);
       
        g2d.setColor(Color.black);
        g2d.fillRect(0, 0, 300, 400);

        if(y==0){
        g2d.setColor(Color.red);
        g2d.fillOval(x, y, ballRadius/2, ballRadius/2);       
        }

        else if(x==251){
         g2d.setColor(Color.green);
         g2d.fillOval(x, y, ballRadius/2, ballRadius/2);       
        }

        else if(y==331){
         g2d.setColor(Color.red);
         g2d.fillOval(x, y, ballRadius/2, ballRadius/2);         
        }
        else if(x==-1){
         g2d.setColor(Color.green);
         g2d.fillOval(x, y, ballRadius/2, ballRadius/2);      
        }

        if(xa==30){
        g2d.setColor(Color.white);
        g2d.fillOval(xa, ya, ballRadius/2, ballRadius/2);
        }

        else if(ya==301){
        g2d.setColor(Color.ORANGE);
        g2d.fillOval(xa, ya, ballRadius/2, ballRadius/2);
        }

        else if(xa==231){
        g2d.setColor(Color.white);
        g2d.fillOval(xa, ya, ballRadius/2, ballRadius/2);
        }

        else if(ya==30){
        g2d.setColor(Color.ORANGE);
        g2d.fillOval(xa, ya, ballRadius/2, ballRadius/2);
        }

        if(xxa==60){
        g2d.setColor(Color.blue);
        g2d.fillOval(xxa, yya, ballRadius/2, ballRadius/2);
        }
        else if(xxa==201){
        g2d.setColor(Color.PINK);
        g2d.fillOval(xxa, yya, ballRadius/2, ballRadius/2);
        }

        else if(yya==261){
        g2d.setColor(Color.blue);
        g2d.fillOval(xxa, yya, ballRadius/2, ballRadius/2);
        }

        else if(xxa==59){
        g2d.setColor(Color.pink);
        g2d.fillOval(xxa, yya, ballRadius/2, ballRadius/2);
        }
    else
        {
          g2d.setColor(Color.blue);
          g2d.fillOval(xxa, yya, ballRadius/2, ballRadius/2); 
        }
    }
  
    public static void main(String[] args) {
        Game g=new Game();
        // TODO code application logic here
        JFrame frame=new JFrame();
        frame.setSize(300, 400);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(g);
        frame.setVisible(true);       
        while(true){
            g.moveTowardsBorder();
            g.repaint();
            try {
                Thread.sleep(5);
            } catch (InterruptedException ex) {
                Logger.getLogger(Game.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
}

Output:
 

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