import java.applet.*;
import java.awt.*;
import java.util.*;

public class Game extends Applet implements Runnable {
	public static final int SLEEP = 10;
	public final int BallNum = 3;
	Region region[];
	PBall Ball[];
	Polygon p1, p2;
	Flipper LB, RB;
	boolean LBarUp = false, RBarUp = false;
	Graphics g;
	BallTrack BTrack;
	int LMouseX, LMouseY;
	AudioClip hitSound;
	Rectangle resetarea;
	int Red = 0;
	int Green = 0;
	int Blue = 200;
	int colorstep = 20;
	int grade = 0;
	Image bkimage, offscreen1, offscreen2;
	MediaTracker tracker;
	Thread displaythread;

	public void init () {
		Graphics offg;
		super.init ();

		hitSound = getAudioClip (getDocumentBase(), "Sound.au");
		bkimage = getImage (getDocumentBase(),  "background3.jpg");
		tracker = new MediaTracker (this);
		tracker.addImage(bkimage, 0);

		try { tracker.waitForID(0); } catch (InterruptedException e) {};

		g = getGraphics();		
		resetarea = new Rectangle (20, 350, 100, 60);
		region = new Region[10];
		region[0] = new Region (this, 160, 390, 80, 30, Region.ENDREGION);

		region[1] = new Region (this, 55, 50, 290, 340, Region.BOUNDARY);
		region[2] = new Region (this, 50, 260, 160, 350, 50, 350);
		region[3] = new Region (this, 350, 260, 240, 350, 350, 350);
		region[4] = new Region (this, 125, 177, 20);
		region[5] = new Region (this, 275, 177, 20);
		region[6] = new Region (this, 200, 133, 20);
		region[7] = new Region (this, 55, 50, 345, 195);

		region[8] = new Region (this, 50, 350, 110-2, 50, Region.RECTANGLE);
		region[9] = new Region (this, 240+2, 350, 110, 50, Region.RECTANGLE);

		LMouseX = 0;
		LMouseY = 0;

		LB = new Flipper (160, 350, region[2].tangle, this, Flipper.LEFT);
		RB = new Flipper (240, 350, region[3].tangle, this, Flipper.RIGHT);
		Ball = new PBall[BallNum];
		BTrack = new BallTrack (this, Ball);
		newGame ();

		offscreen1 = createImage (size().width, size().height);
		offscreen2 = createImage (size().width, size().height);
		offg = offscreen1.getGraphics ();
		drawbackground (offg);
		offg = offscreen2.getGraphics ();
		offg.drawImage (offscreen1, 0, 0, null);
		offg.dispose ();

		LB.start();
		RB.start();
	}

	public void paint (Graphics g) {
		g.drawImage (offscreen2, 0, 0, this);
		LB.showBar (g, Color.red, Color.lightGray);
		RB.showBar (g, Color.red, Color.lightGray);
		if (BTrack.Ready)
			BTrack.BallReady ();
	}

	public void newGame () {
		grade = 0;
		for (int i=0; i<Ball.length; i++) {
			if ((Ball[i] != null) && (Ball[i].isAlive()))
				Ball[i].stop();
			Ball[i] = null;
			Ball[i] = new PBall (i, region, g, this);
			Ball[i].setBar (LB, RB);
		}

		for (int i=0; i<Ball.length; i++) {
			Ball[i].setOBall (Ball);
		}

		LB.setBall (Ball);
		RB.setBall (Ball);
		BTrack.setBall (Ball);
		BTrack.setReady ();
		BTrack.BallReady ();
	}

	public boolean keyDown (Event e, int key) {
		char c;

		if (e.id == Event.KEY_PRESS) {
			c = (char) e.key;
			switch (c) {
			case 'n':
				newGame ();
				break;
			case 'z':
				LBarUp = true;
				break;
			case '/':
				RBarUp = true;
				break;
			case ' ':
				BTrack.DownTBar ();
				break;
			}
		}
		return true;
	}

	public boolean keyUp (Event e, int key) {
		char c;

		if (e.id == Event.KEY_RELEASE) {
			c = (char) e.key;
			switch (c) {
			case 'z':
				LBarUp = false;
				break;
			case '/':
				RBarUp = false;
				break;
			case ' ':
				BTrack.start ();
				break;
			}
		}
		return true;
	}

	public boolean mouseDown (Event e, int x, int y) {
		if (BTrack.insideTBar (x, y)) {
			LMouseX = x;
			LMouseY = y;
		} else if (resetarea.inside (x, y)) {
			newGame ();
		} else {
			LBarUp = true;
			RBarUp = true;
		}
		return true;
	}

	public boolean mouseDrag (Event e, int x, int y) {
		if ((LMouseY > 0) && (y > LMouseY)) {
			BTrack.DownTBar ();
		}
		return true;
	}

	public boolean mouseUp (Event e, int x, int y) {
		if (LMouseY > 0) {
			BTrack.start ();
			LMouseY = 0;
		} else {
			LBarUp = false;
			RBarUp = false;
		}
		return true;
	}

	public void hitplay () {
		hitSound.play ();
	}

	public void drawbackground (Graphics g) {
		int i;

		g.drawImage (bkimage, 0, 0, this);
		for (i=0; i<10; i++) {
			g.setColor(new Color(Red+i*colorstep,Green+i*colorstep,Blue));
			g.drawLine(35+i,195,35+i,260);
			g.drawLine(345+i,195,345+i,208);
			g.drawLine(345+i,210+2*(PBall.ria+3),345+i,260);

			g.drawArc(35+i+1, 30+i+1, 330-2*(i+1), 330-2*(i+1), 180,-180);
			g.drawLine(35+i,260,140+i,350);
			g.drawLine(345+i,260,240+i,350);
			g.drawLine(140+i,350,140+i,420-i);

			g.drawLine(240+i,350,240+i,400+i);

			g.drawLine(140+i,420-i,260-i,420-i);
			g.drawArc (295+i, 190+i, 140-2*i, 140-2*i, 0, 90);
			g.drawArc (315+2*(PBall.ria+3)+i, 210+2*(PBall.ria+3)+i, 
				100-4*(PBall.ria+3)-2*i, 100-4*(PBall.ria+3)-2*i, 0, 90);

			g.setColor(new Color(Red+(9-i)*colorstep,Green+(9-i)*colorstep,Blue));
			g.drawLine(45+i,195,45+i,260);
			g.drawLine(355+i,195,355+i,208);
			g.drawLine(355+i,210+2*(PBall.ria+3),355+i,260);

			g.drawArc(45+i+1, 40+i+1, 310-2*(i+1), 310-2*(i+1), 180,-180);
			g.drawLine(45+i,260,150+i,350);
			g.drawLine(355+i,260,250+i,350);
			g.drawLine(150+i,350,150+i,410-i);

			g.drawLine(250+i,350,250+i,410+i);

			g.drawLine(150+i,410-i,250-i,410-i);
			g.drawArc (305+i, 200+i, 120-2*i, 120-2*i, 0, 90);
			g.drawArc (325+2*(PBall.ria+3)+i, 220+2*(PBall.ria+3)+i, 
				80-4*(PBall.ria+3)-2*i, 80-4*(PBall.ria+3)-2*i, 0, 90);
		}
		for (i=0; i<10; i++) {
			g.setColor(new Color(Red+i*colorstep,Green+i*colorstep,Blue));
			g.drawLine(365-i, 190+i, 366, 190+i);
			g.drawLine(345+i, 210+2*(PBall.ria+3)+i, 366, 210+2*(PBall.ria+3)+i);
			g.drawLine(395-2*(PBall.ria+3)+i+1, 260, 395-2*(PBall.ria+3)+i+1,
				300);
			g.drawLine(395+2*(PBall.ria+3)+i+3, 260, 395+2*(PBall.ria+3)+i+3,
				300);
			g.setColor(new Color(Red+(9-i)*colorstep,Green+(9-i)*colorstep,Blue));
			g.drawLine(355-i, 200+i, 366, 200+i);
			g.drawLine(355+i, 220+2*(PBall.ria+3)+i, 366, 220+2*(PBall.ria+3)+i);
			g.drawLine(405-2*(PBall.ria+3)+i+1, 260, 405-2*(PBall.ria+3)+i+1,
				300);
			g.drawLine(405+2*(PBall.ria+3)+i+3, 260, 405+2*(PBall.ria+3)+i+3,
				300);

			g.setColor(new Color(Blue, Red+i*colorstep,Green+i*colorstep));
			g.fillRect (360, 10+3*i, 40, 3);
			g.fillArc  (330+3*i, 10+3*i, 60-6*i, 60-6*i, 90, 180);
			g.fillArc  (370+3*i, 10+3*i, 60-6*i, 60-6*i, 90, -180);
			g.setColor(new Color(Blue, Red+(9-i)*colorstep,Green+(9-i)*colorstep));
			g.fillRect (360, 40+3*i, 40, 3);

			g.setColor(new Color(Green+i*colorstep, Blue, Red+i*colorstep));
			g.fillRect (50, 350+3*i, 40, 3);
			g.fillArc  (20+3*i, 350+3*i, 60-6*i, 60-6*i, 90, 180);
			g.fillArc  (60+3*i, 350+3*i, 60-6*i, 60-6*i, 90, -180);
			g.setColor(new Color(Green+(9-i)*colorstep, Blue, Red+(9-i)*colorstep));
			g.fillRect (50, 380+3*i, 40, 3);
		}
		g.setFont (new Font("Helvetica", Font.BOLD, 16));
		g.setColor (Color.white);
		g.drawString ("New Game", 30, 385);
		g.setColor (Color.black);
		g.drawString ("New Game", 29, 384);
		for (i=0; i<region.length; i++)
			region[i].draw (g);
	}

	public synchronized void addgrade (int i) {
		grade += i;
	}

	public void showgrade (Graphics g) {
		g.setFont (new Font("Helvetica", Font.BOLD, 18));
		g.setColor (Color.white);
		g.drawString (" "+grade, 351, 47);
		g.setColor (Color.black);
		g.drawString (" "+grade, 350, 46);
	}

	public void start () {
		if (displaythread == null) {
			displaythread = new Thread(this);
			displaythread.start();
		}
	}

	public void delay () {
		try {
			Thread.sleep (SLEEP);
		} catch (InterruptedException e) {};
	}

	public void run  () {
		Graphics offg, g;

		for (;;) {
			offg = offscreen2.getGraphics ();
			offg.drawImage (offscreen1, 0, 0, null);

			showgrade (offg);
			for (int i=0; i<region.length; i++)
				region[i].checkflash (offg);
			for (int i=0; i<Ball.length; i++) {
				if ((Ball[i] != null) && Ball[i].Exist)
					Ball[i].drawBall (offg, Ball[i].fc, Ball[i].cc);
			}
			LB.showBar (offg, Color.red, Color.lightGray);
			RB.showBar (offg, Color.red, Color.lightGray);
			BTrack.drawTBar (offg, BTrack.Barcolor);
			offg.dispose ();
			g = getGraphics ();
			g.clipRect (50, 10, 380, 410);
			g.drawImage (offscreen2, 0, 0, this);
			g.dispose ();
			delay ();
		}
	}
			
	public void stop () {
		if ((displaythread != null) && (displaythread.isAlive()))
			displaythread.stop();
		displaythread = null;
	}
}