/**
 * @(#)EnemyShips.java      1.0.1 98/12/04
 * <p>
 * Copyright (C) 1998 David E. Wexler
 * <p>
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. See
 * license.txt for a full copy of the GNU GPL.
 * <p>
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * <p>
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
 * USA.
 * <p>
 * To Contact the author send e-mail to vagabond@netdragon.com or send
 * snailmail to: 511 Bobcat Ct, Punta Gorda, FL 3398.
 */

import java.applet.Applet;
import java.awt.*;
import java.io.*;
import java.lang.*;
import java.net.*;
import java.util.*;

/**
 * HighScores - Calls a CGI Script that handles new high scores and
 * returns Data to be displayed.
 * <p>
 * Sends a request to
 * <code>/cgi-bin/high.pl?file=$file&name=$name&s=$score&key=$key</code>
 * where $file = getParameter("file"), $name = getParamter("name"),
 * $s = your score, and $key = a static variable.
 * 
 * <p>
 * @author      David Wexler (vagabond@netdragons.com)
 * @version     1.0.1
 * @since       Nelzan1.0.1
 */

public class HighScores {
  // A key to be transimited, for security reasons.
  private static final String key = "ZZZZZZZZZZZZZZZZ";

 /**
  * String Array to hold information on how to play the game.
  */
  String[] instrcut = { "Arrows - Move", "Num Pad - Move", "a = Use Laser",
   "s = Use Dual Laser", "d = Use Wave", "f = Use Arrow", "space = fire",
   "p = Pause" };

 /**
  * String Array to hold the top 5 high scores
  */
  String[] highScore = new String[5];

 /**
  * Instance of Applet for callbacks.
  */
  Applet comp;

 /**
  * URL we are going to connecte to, saved here in case we need to recover.
  */
  URL dataFile;

  Font font = new Font("Helvetica", Font.BOLD, 16);
  FontMetrics fontSize;

 /**
  * Creates and instance of HighScores.
  *
  * @param c            Instance of an Applet, for call backs.
  */
  HighScores(Applet c) {
    comp = c;
    fontSize = comp.getFontMetrics(font);
  }

 /**
  * Opens a CGI script with the propper data and downloads the new high
  * scores.
  * <p>
  * Sends a request to
  * <code>/cgi-bin/high.pl?file=$file&name=$name&s=$score&key=$key</code>
  * where $file = getParameter("file"), $name = getParamter("name"),
  * $s = your score, and $key = a static variable.
  * 
  * @param s            Your Score.
  */
  public void sendHigh(int s) {
    String url = comp.getParameter("host") + "/cgi-bin/high.pl?file=" +
     comp.getParameter("file") + "&name=" + comp.getParameter("name") +
     "&s=" + s + "&key=" + key;
    try {
      this.dataFile = new URL(url);
    } catch ( MalformedURLException e) {
      System.out.println("Bad URL: " + url);
    }

    String line;  // Line Buffer
    int c = 0;

    try {
      URLConnection conn = this.dataFile.openConnection();
      conn.connect();
      DataInputStream data = new DataInputStream(new BufferedInputStream(conn.getInputStream()));
      while((line = data.readLine()) != null) {
        highScore[c++] = line;
      }
    } catch (IOException e) {
      System.out.println("IO Error:" + e.getMessage());
    }
  }

 /**
  * Paints the data stored in highScore[].
  *
  * @param g            The Graphics to draw to.
  */
  public void paint(Graphics g) {
    g.setColor(Color.black);
    g.drawString("High Scores", 301 - fontSize.stringWidth("High Scores")/2, 131);
    g.drawLine(211, 136, 391, 136);
    g.setColor(Color.white);
    g.drawString("High Scores", 300 - fontSize.stringWidth("High Scores")/2, 130);
    g.drawLine(210, 135, 390, 135);
    for (int i = 0; i < 5; i++) {
      g.setColor(Color.black);
      g.drawString(highScore[i], 301 - fontSize.stringWidth(highScore[i])/2, 161+(i*15));
      g.setColor(Color.white);
      g.drawString(highScore[i], 300 - fontSize.stringWidth(highScore[i])/2, 160+(i*15));
    }
  }

 /**
  * Paints the data stored in instrcut[].
  *
  * @param g            The Graphics to draw to.
  */
  public void paintInstructions(Graphics g) {
    g.setColor(Color.black);
    g.drawString("Instructions", 301 - fontSize.stringWidth("Instructions")/2, 111);
    g.drawLine(211, 116, 391, 116);
    g.setColor(Color.white);
    g.drawString("Instructions", 300 - fontSize.stringWidth("High Scores")/2, 110);
    g.drawLine(210, 115, 390, 115);
    for (int i = 0; i < 8; i++) {
      g.setColor(Color.black);
      g.drawString(instrcut[i], 301 - fontSize.stringWidth(instrcut[i])/2, 136+(i*15));
      g.setColor(Color.white);
      g.drawString(instrcut[i], 300 - fontSize.stringWidth(instrcut[i])/2, 135+(i*15));
    }
  }
}