//Stars.java
import java.awt.Graphics;
import java.awt.Color;
import java.util.Random;

class Stars
{
	double[] x;
	double[] y;
	int numStars = 20;
	SpacePanel space;
	public Stars(SpacePanel space)
	{
		x = new double[numStars];
		y = new double[numStars];
		this.space =space;
		Random r = new Random();
		for (int loop=0;loop<numStars;loop++)
		{
			x[loop] = space.xstart + space.xwidth*r.nextDouble();
			y[loop] = space.ystart - space.yheight*r.nextDouble();
		}
	}
	
	public void draw(Graphics g)
	{
		Color temp = g.getColor();
		g.setColor(Color.white);
		for (int loop=0;loop<numStars;loop++)
		{
			g.fillOval(space.mapX(x[loop]),space.mapY(y[loop]),1,1);
		}
		g.setColor(temp);
	}
	
	public void move(boolean frame, double v)
	{
		Random r = new Random();
		if (frame == Reality.OBJECT_FRAME)
		for(int loop=0;loop<numStars;loop++)
		{
			x[loop] += v*space.EIN.t_inc;
			if (x[loop] < space.xstart)
			{
				x[loop] = space.xstart+space.xwidth+space.xwidth*r.nextDouble();
				y[loop] = space.ystart - space.yheight*r.nextDouble();
			}
		}
		else
		for(int loop=0;loop<numStars;loop++)
		{
		if (x[loop] < space.xstart)
			{
				x[loop] = space.xstart+space.xwidth*r.nextDouble();
				y[loop] = space.ystart - space.yheight*r.nextDouble();
			}
		}
	}
}