118 lines
3.5 KiB
Java
118 lines
3.5 KiB
Java
Creating dynamic graphics (Stars)
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import java.awt.*;
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import javax.swing.*;
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import java.awt.event.*;
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import java.util.*;
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public class Cells1 extends JFrame
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{
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private DPanel pan = new DPanel();
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private Network net = new Network(pan);
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public Cells1()
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{
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addWindowListener(new WindowAdapter()
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{
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public void windowClosing(WindowEvent ev)
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{
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dispose();
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System.exit(0);
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}
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});
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setBounds(10,10,400,350);
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setContentPane(pan);
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setVisible(true);
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}
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public class DPanel extends JPanel
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{
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private Graphics2D g2f;
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private Color colors[] = new Color[]
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{
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Color.red,Color.black,Color.yellow,Color.blue,Color.green,Color.gray,Color.cyan,Color.cyan,Color.orange,Color.magenta
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};
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public DPanel()
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{
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setBackground(Color.white);
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}
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public void paintComponent(Graphics g)
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{
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super.paintComponent(g);
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g2f = (Graphics2D)g;
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Vector cells = net.getCells();
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for (int j=0; j < cells.size(); j++)
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draw((Cell_Info)cells.get(j));
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g2f = null;
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}
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public void draw(Cell_Info ci)
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{
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if (g2f == null)
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g2f = (Graphics2D)getGraphics();
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Point p = ci.getPoint();
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g2f.setColor(colors[ci.getAction()]);
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g2f.fillOval(p.x,p.y,8,8);
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}
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}
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public class Network extends Object
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{
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private Vector cells = new Vector();
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public Network(final DPanel pan)
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{
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cells.add(new Cell_Info(20,20));
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cells.add(new Cell_Info(50,120));
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cells.add(new Cell_Info(45,20));
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cells.add(new Cell_Info(90,55));
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cells.add(new Cell_Info(40,110));
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cells.add(new Cell_Info(35,80));
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cells.add(new Cell_Info(95,70));
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cells.add(new Cell_Info(24,40));
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cells.add(new Cell_Info(35,60));
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cells.add(new Cell_Info(80,100));
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cells.add(new Cell_Info(90,90));
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javax.swing.Timer ta = new javax.swing.Timer(200, new ActionListener()
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{
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public void actionPerformed(ActionEvent e)
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{
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int v = (int)(Math.random()*cells.size());
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int c = (int)(Math.random()*10);
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Cell_Info ci = (Cell_Info)cells.get(v);
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ci.setAction(c);
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pan.draw(ci);
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}
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});
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ta.start();
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}
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public Vector getCells()
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{
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return(cells);
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}
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}
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public class Cell_Info extends Object
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{
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Point point;
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int activ = 0;
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public Cell_Info(int x, int y)
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{
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point = new Point(x,y);
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}
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public Point getPoint()
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{
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return(point);
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}
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public int getAction()
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{
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return(activ);
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}
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public void setAction(int a)
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{
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activ = a;
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}
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}
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public static void main (String[] args)
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{
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new Cells1();
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}
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}
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