import java.awt.*;
import java.applet.Applet;

public class MouseCheeseApplet extends Applet implements Runnable {
	
	Thread moveMice;
	
	mouse mouse1;
	mouse mouse2;
	cheese theCheese;
	
	public void start() {
		
		if (moveMice == null) {
			moveMice = new Thread(this);
			moveMice.start();
		}
	}
	
	public void stop() {
		if (moveMice != null) {
			moveMice.stop();
			moveMice = null;
		}
	}
	
	public void run() {
	
		mouse1 = new mouse(0,0,2);
		mouse2 = new mouse(0,0,3);
		theCheese = new cheese(100,100);
		repaint();
		
		while (true) {
			mouse1.getCheese(theCheese);
			mouse2.getCheese(theCheese);
			Thread.yield();
			/*try { Thread.sleep(5); }
			catch (InterruptedException e) {}*/
			repaint();
		}
	}
	
	
	public void paint( Graphics g ) {
		theCheese.draw(g);
		mouse1.draw(g,theCheese);
		mouse2.draw(g,theCheese);
	}
	
	
	public boolean mouseUp(Event e, int x, int y) {
		
		theCheese.x = x;
		theCheese.y = y;
		
		return true;
	
	}
	
	public boolean mouseDrag(Event e, int x, int y) {
		
		theCheese.x = x;
		theCheese.y = y;
		
		return true;
	
	}
	
	int distance(int x1,int y1,int x2,int y2) {
		int xOff,yOff;
		xOff = x1-x2;
		yOff = y1-y2;
		return (int)(Math.sqrt(xOff*xOff+yOff*yOff));
	}	

}

class cheese {
	
	int x,y;
	
	cheese(int x,int y) {
		this.x = x;
		this.y = y;
	}
	
	void draw(Graphics g) {
		g.setColor(new Color(255,150,0));
		g.fillOval(x-5,y-5,12,12);
		g.setColor(new Color(255,200,0));
		g.fillOval(x-5,y-5,5,5);
		g.fillOval(x,y-2,5,5);
		
	}
	
	
}

class mouse { 
	
	int x,y,speed;
	
	mouse(int x,int y,int speed) {
		this.x = x;
		this.y = y;
		this.speed = speed;
	}
	
	void draw(Graphics g,cheese myCheese) {
		
		g.setColor(Color.gray);
		g.fillOval(x-10,y-10,20,20);
		drawNose(g,myCheese);

	}
	
	void drawNose(Graphics g,cheese myCheese) {
	
		int xOff,yOff,dist;
		xOff = myCheese.x-x;
		yOff = myCheese.y-y;
		dist = (int)(Math.sqrt(xOff*xOff+yOff*yOff));
		
		if (dist != 0) {
			xOff = 10*xOff/dist;
			yOff = 10*yOff/dist;
		}
		else {
			xOff = 0;
			yOff = 0;
		}
		
		g.setColor(Color.black);
		g.fillOval(x+xOff-3,y+yOff-3,6,6);
		
	
	}
	
	void getCheese(cheese myCheese) {
	
		int xOff,yOff,dist;
		xOff = myCheese.x-x;
		yOff = myCheese.y-y;
		dist = (int)(Math.sqrt(xOff*xOff+yOff*yOff));
		
		if (dist >= 13) {
			x += speed*xOff/dist;
			y += speed*yOff/dist;
		}
		else {
			xOff = 0;
			yOff = 0;
		}
		
						
	}
	
	
}