import java.awt.*;

public class test1 extends BufferedApplet
{
   int w = 0, h = 0, x1 = 0, y1 = 0, y2 = 0;

   int diameter = 40, border = 4;
   int score = 0, winningScore = 21;
   int boosted = 0, scored = 0;

   double mx = 0, my = 0, dx = 6, dy = 3;

   Font font = new Font("Helvetica", Font.BOLD, 24);

   public void render(Graphics g) {
      if (w == 0) {
	 w = bounds().width;
	 h = bounds().height;
         startGame();
      }

      g.setColor(Color.white);
      g.fillRect(0, 0, w, h);

      g.setColor(scored-- > 0 ? Color.red : Color.black);
      g.fillRect(x1 - 10, 0, 20, h);

      g.setColor(Color.white);
      g.fillRect(x1 - 10, y1, 20, y2 - y1);

      g.setColor(Color.blue);
      g.setFont(font);
      g.drawString("Score: " + score + " out of 21", 5, 24);

      Color diskColor = boosted > 0 ? Color.red : Color.green;
      int d = (int)(boosted > 0 ? 1.2 * diameter : diameter);

      drawDisk(g, (int)mx, (int)my, d, (int)border, diskColor);

      if (boosting)
         boostAmount++;

      if (boosted == 5)
         dy -= boostAmount;

      if (boosted > 0) {
         boosted--;
         if (boosted == 0)
            boostAmount = 5;
      }

      dy++;

      dy *= 0.99;

      mx += dx;
      my += dy;

      if (mx + diameter/2 + dx > w) dx = -dx;
      if (mx - diameter/2 + dx < 0) dx = -dx;

      if (mx < x1 && my < y1 || my > y2)
         if (dx > 0 && mx + diameter/2 > x1 - 10) dx = -dx;

      if (score < winningScore && mx > x1) {
         score++;
         scored = 5;
         mx = 20;
         dx = 6 + score;
         y1 += 5;
         y2 -= 5;
      }

      if (score == winningScore) {
         g.setColor(Color.red);
         g.drawString("YOU WON!  Hit SPACE to play again", 85, h / 2);
      }



      if (my + diameter/2 + dy > h) dy = -dy;
      if (my - diameter/2 + dy < 0) dy = -dy;

      my = Math.min(h - diameter/2, my);

      animating = true;

   }

   public void drawDisk(Graphics g, int x, int y, int d, int b, Color color) {
      g.setColor(Color.black);
      g.fillOval(x - d/2, y - d/2, d, d);
      g.setColor(color);
      d -= 2 * b;
      g.fillOval(x - d/2, y - d/2, d, d);
   }

   void startGame() {
      mx = w / 4;
      my = h / 2;
      score = 0;
      x1 = w - 40;
      y1 = h / 2 - 5 * winningScore;
      y2 = h / 2 + 5 * winningScore;
   }

   int boostAmount = 5;
   boolean boosting = false;

   public boolean mouseDown(Event e, int x, int y) {
      boosting = true;
      return true;
   }

   public boolean mouseUp(Event e, int x, int y) {
      boosting = false;
      boosted = 5;
      return true;
   }

   public boolean keyUp(Event e, int key) {
      if (key == ' ')
	 startGame();
      return true;
   }
}