import java.applet.Applet ;

import java.applet.Applet ;
import java.awt.* ;
import java.lang.Math ;
import java.util.Random ;

public class StarryApplet extends Applet {

Color[] color = {
new Color( 0x9db4ff ),
new Color( 0xa2b9ff ),
new Color( 0xa7bcff ),
new Color( 0xaabfff ),
new Color( 0xafc3ff ),
new Color( 0xbaccff ),
new Color( 0xc0d1ff ),
new Color( 0xcad8ff ),
new Color( 0xe4e8ff ),
new Color( 0xedeeff ),
new Color( 0xfbf8ff ),
new Color( 0xfff9f9 ),
new Color( 0xfff5ec ),
new Color( 0xfff4e8 ),
new Color( 0xfff1df ),
new Color( 0xffebd1 ),
new Color( 0xffd7ae ),
new Color( 0xffc690 ),
new Color( 0xffbe7f ),
new Color( 0xffbb7b ),
new Color( 0xffbb7b )
} ;

public void init() {
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

d.setSize( d.width - 7, d.height - 93 ) ;
resize( d ) ;
}

public void paint( Graphics g ) {
int nStars = 1000 ; // number of stars in clump
int mX = 500 ; // mean x of clump stars
int mY = 200 ; // mean y of clump stars
int rot= -45 ; // clump rotation
int sdX1 = 100 ; // std. dev. of clump star (rotated) x
int sdY1 = 20 ; // std. dev. of clump star (rotated) y

Dimension d = getSize() ;
Random r = new Random() ;

double omega, cosOmega, sinOmega ;
omega = rot * Math.PI / 180 ;
cosOmega = Math.cos( omega ) ;
sinOmega = Math.sin( omega ) ;

g.setColor( Color.black ) ;
g.fillRect( 0, 0, d.width, d.height ) ;

for ( int n = 0 ; n < nStars ; n ++ ) {
int x, y ;
x = y = -1 ;

while ( x < 0 || x > d.width || y < 0 || y > d.height ) {
double x1, y1 ;
x1 = r.nextGaussian() * sdX1 ;
y1 = r.nextGaussian() * sdY1 ;
x = (int) ( mX + x1 * cosOmega - y1 * sinOmega ) ;
y = (int) ( mY + y1 * cosOmega + x1 * sinOmega ) ;
}
g.setColor( color[ (int) (color.length * r.nextDouble()) ] ) ;
g.fillOval( x, y, 1, 1 ) ;
}
g.setColor( Color.cyan ) ;
g.drawLine( 0, d.height - 3, d.width - 42, d.height - 3) ;
g.drawString( "(ka*", d.width - 40, d.height ) ;
}
}