2d demo help
hi i m try to make a structure moving i was able to make part of it can somebody help please...
thanks in advance
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
publicclass DEMO2{
publicstaticvoid main(String[] args){
JFrame frame =new demoframe();
frame.show();
}
}
class demoframeextends JFrame{
public demoframe(){
setSize(300, 500);
setTitle("Earthquake");
addWindowListener(new WindowAdapter(){
publicvoid windowClosing(WindowEvent e){
System.exit(0);
}
});
Container contentPane = getContentPane();
canvas =new JPanel();
contentPane.add(canvas,"Center");
JPanel p =new JPanel();
addButton(p,"Start",new ActionListener(){
publicvoid actionPerformed(ActionEvent evt){
rigid b =new rigid(canvas);
b.start();
}
});
addButton(p,"Close",new ActionListener(){
publicvoid actionPerformed(ActionEvent evt){
canvas.setVisible(false);
System.exit(0);
}
});
contentPane.add(p,"South");
}
publicvoid addButton(Container c, String title, ActionListener a){
JButton b =new JButton(title);
c.add(b);
b.addActionListener(a);
}
private JPanel canvas;
}
class rigidextends Thread{
public rigid(JPanel b){
building = b;
}
publicvoid draw(){
Graphics g = building.getGraphics();
g.fillRect(x, y, XSIZE, YSIZE);
for(int i=1; i<(fl+1); i++ )
{
x1=x+20; x2=x+XSIZE-20; y1=y-(i*YSIZE); y2=y;
g.drawLine(x1, y1, x1, y2);
g.drawLine(x2, y1, x2, y2);
g.drawLine(x1, y1, x2, y1);
}
}
publicvoid move(){
if (!building.isVisible())
return;
Graphics g = building.getGraphics();
g.setXORMode(building.getBackground());
g.fillRect(x, y, XSIZE, YSIZE);
for(int i=1; i<(fl+1); i++ ){
x1=x+20; x2=x+XSIZE-20; y1=y-(i*YSIZE); y2=y;
g.drawLine(x1, y1, x1, y2);
g.drawLine(x2, y1, x2, y2);
g.drawLine(x1, y1, x2, y1);
}
x += dx;
Dimension d = building.getSize();
if (x < 100){
dx = -dx;
}
if (x + XSIZE + 100 >= d.width){
x = d.width - XSIZE- 100;
dx = -dx;
}
g.fillRect(x, y, XSIZE, YSIZE);
for(int i=1; i<(fl+1); i++ )
{
{
x1=x+20; x2=x+XSIZE-20; y1=y-(i*YSIZE); y2=y;
g.drawLine(x1, y1, x1, y2);
g.drawLine(x2, y1, x2, y2);
g.drawLine(x1, y1, x2, y1);
}
}}
publicvoid run(){
try{
draw();
for (int i = 1; i <= 1000; i++){
move();
sleep(200);
}
}
catch (InterruptedException e){}
}
private JPanel building;
privatestaticfinalint XSIZE = 75;
privatestaticfinalint YSIZE = 25;
privateint x = 99;
privateint y = 400;
privateint dx = 2;
privateint fl = 10;
privateint x1, x2, y1, y2;
}
