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

public class Flipper extends Thread {
	public static final int LEFT = 1;
	public static final int RIGHT = -1;
	public static final int WIDTH = 33;
	public static final int delay = 20;
	public static final double ANGLESTEP = 15;
	public double MAXANGLE = 45;
	public int x, y, power, cpower;
	public double MINANGLE, angle, cangle;
	public Game parent;
	public int type;
	PBall ball[];

	public Flipper (int x1, int y1, double mina, Game p, int t) {
		x = x1;
		y = y1;
		type = t;
		MINANGLE = mina;
		MAXANGLE = MAXANGLE * type;
		angle = mina;
		parent = p;
		power = 0;
		cpower = 0;
		cangle = 0;
	}

	public void setBall (PBall b[]) {
		ball = b;
	}

	public void showBar (Graphics g, Color c1, Color c2) {
		Polygon p = new Polygon ();
		double ta1, ta2;
		int nx1, ny1, nx2, ny2, nx3, ny3;

		ta1 = -1 * type * angle;
		ta2 = 90 + ta1;
		ny1 = y + (int) (WIDTH * Math.sin (Direction.getRand(ta1)));
		nx1 = x + (int) (type * WIDTH * Math.cos (Direction.getRand(ta1)));
		ny2 = y + (int) (PBall.ria * Math.sin (Direction.getRand(ta2)));
		nx2 = x + (int) (type * PBall.ria * Math.cos (Direction.getRand(ta2)));
		ny3 = ny1 + (int) (PBall.ria * Math.sin (Direction.getRand(ta2)));
		nx3 = nx1 + (int) (type * PBall.ria * Math.cos (Direction.getRand(ta2)));

		p.addPoint (x, y);
		p.addPoint (nx1, ny1);
		p.addPoint (nx3, ny3);
		p.addPoint (nx2, ny2);

		g.setColor (c1);
		g.fillPolygon (p);
		g.setColor (c2);
		g.drawPolygon (p);
		p = null;
	}

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

	public double reachBar (PBall b) {
		Polygon p = new Polygon ();
		double nangle = 0, ta1, ta2;
		int nx1, ny1, nx2, ny2, nx3, ny3;
		double cthick;

		ta1 = -1 * type * angle;
		ta2 = 90 + ta1;
		cthick = Math.max ((double) PBall.ria, 
			Math.sqrt(b.YValue*b.YValue+b.XValue*b.XValue)+2);
		ny1 = y-PBall.ria + (int) ((WIDTH+PBall.ria) * Math.sin (Direction.getRand(ta1)));
		nx1 = x + (int) (type * (WIDTH+PBall.ria) * Math.cos (Direction.getRand(ta1)));
		ny2 = y-PBall.ria + (int) (cthick * Math.sin (Direction.getRand(ta2)));
		nx2 = x + (int) (type * cthick * Math.cos (Direction.getRand(ta2)));
		ny3 = ny1 + (int) (cthick * Math.sin (Direction.getRand(ta2)));
		nx3 = nx1 + (int) (type * cthick * Math.cos (Direction.getRand(ta2)));
		p.addPoint (x, y-PBall.ria);
		p.addPoint (nx1, ny1);
		p.addPoint (nx3, ny3);
		p.addPoint (nx2, ny2);

		if (p.inside (b.x, b.y)) {
			nangle = angle;
		}
		if (p.inside (b.x, b.y)) {
			nangle = angle;
		}
		if (p.inside (b.x, b.y)) {
			nangle = angle;
		}
		if (p.inside (b.x, b.y)) {
			nangle = angle;
		}
		p = null;

		if (nangle != 0) {
			cpower = power;
			cangle = ta2;
		}
		return (nangle);
	}


	public void checktouch (PBall ba) {
		double nangle, i, accspeed;

		synchronized (ba) {
			i = reachBar (ba);
			if (i != 0) {
				ba.di.setDirection (cangle);
				accspeed = 3*cpower*(90 - ba.ANGDIF)/90;
				ba.di.reflect (ba, i);
				ba.speed += accspeed;
				ba.checkspeed ();
				ba.getXYValue ();
			}
		}
	}


	public void BarUp () {
		switch (type) {
		case LEFT:
			if (angle < MAXANGLE) {
				angle += ANGLESTEP;
				power ++;
				for (int i=0; i<ball.length; i++) {
					if (ball[i].isAlive())
						checktouch (ball[i]);
				}
			} else {
				power = 0;
			}
			break;
		case RIGHT:
			if (angle > MAXANGLE) {
				angle -= ANGLESTEP;
				power ++;
				for (int i=0; i<ball.length; i++) {
					if (ball[i].isAlive())
						checktouch (ball[i]);
				}
			} else {
				power = 0;
			}
			break;
		}
	}

	public void BarDown () {
		switch (type) {
		case LEFT:
			if (angle > MINANGLE) {
				angle -= ANGLESTEP;
				power = 0;
				for (int i=0; i<ball.length; i++) {
					if (ball[i].isAlive())
						checktouch (ball[i]);
				}
			}
			break;
		case RIGHT:
			if (angle < MINANGLE) {
				angle += ANGLESTEP;
				power = 0;
				for (int i=0; i<ball.length; i++) {
					if (ball[i].isAlive())
						checktouch (ball[i]);
				}
			}
			break;
		}

	}

	public void run () {
		for (;;) {
			switch (type)  {
			case LEFT:
				if (parent.LBarUp) {
					BarUp ();
				} else {
					BarDown ();
				}
				break;
			case RIGHT:
				if (parent.RBarUp) {
					BarUp ();
				} else {
					BarDown ();
				}
				break;
			}
			delay (delay);
		}
	}
}