/**
 * @(#)StoryLine.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.*;

/**
 * StoryLine - Downloads and displays Information dealing with a plot line.
 * <p>
 * This Class simple makes a request for a file from the weapon, downloads
 * it and stores the information to be displayed.
 * <p>
 * @author      David Wexler (vagabond@netdragons.com)
 * @version     1.0.1
 * @since       Nelzan1.0.1
 */

public class StoryLine {
 /**
  * Type of Information the line is.
  */
  private int[] type;

 /**
  * Information to be displayed.
  */
  private String[] data;

 /**
  * Font to be Used.
  */
  private Font font = new Font("Helvetica", Font.BOLD, 14);

 /**
  * Intance of Applet, for call backs.
  */
  private Applet comp;

  private int count;
  private int subCount;
  private int length;
  private URL dataFile;

 /**
  * Creates and new instance of the class and downloads the correct file.
  *
  * @param level        Player's Current level.
  * @param c            Instance of an Applet, for call backs.
  */
  StoryLine(int level, Applet c) {
    comp = c;
    getFile(level);
  }

 /**
  * Updates the length of the messages.  It's best for it to look like the
  * message is being download one line at a time.
  */
  public void update() {
    if (subCount++ > 2 && !canContinue()) {
      count += 1;
      subCount = 0;
    }
  }

 /**
  * Determins if the player can hit any key to continue.
  *
  * @return             <code>true</code> if the number of lines being
  *                     display is equal to the total number of lines,
  *                     <code>false</code> otherwise.
  */
  public boolean canContinue() {
    if (count >= length)
      return true;
    return false;
  }

 /**
  * Paints the story line information.
  *
  * @param g            Graphics to paint to.
  */
  public void paint(Graphics g) {
    g.setFont(font);
    for (int i = 0; i < count; i++) {
      if (type[i] == 0) {
        g.setColor(Color.cyan);
        g.drawString("[System] " + data[i], 10, 17*i+15);
      } else if (type[i] == 1) {
        g.setColor(Color.red);
        g.drawString("<< " + data[i], 10, 17*i+15);
      } else if (type[i] == 2) {
        g.setColor(Color.green);
        g.drawString(">> " + data[i], 10, 17*i+15);
      }
    }
    if (canContinue()) {
      g.setColor(Color.cyan);
      g.drawString("[System] Press Any Key To Continue", 10, 17*count+15);
    }
  }

 /**
  * Gets a file from the web and stores the information in arrays.
  *
  * @param i            Level to download.
  */
  private void getFile(int i) {
    String url = comp.getCodeBase().toString() + "levels/" + i + ".plot";
    try {
      this.dataFile = new URL(url);
    } catch ( MalformedURLException e) {
      System.out.println("Bad URL: " + url);
    }

    String line;  // Line Buffer
    int c = -1;

    try {
      URLConnection conn = this.dataFile.openConnection();
      conn.connect();
      DataInputStream data = new DataInputStream(new BufferedInputStream(conn.getInputStream()));
      while((line = data.readLine()) != null) {
       // *** First line tells us how long the file is going to be.
        if (c == -1) {
          buildNew(toInt(line));
          c = 0;
       // *** All other lines contain info.
        } else {
          StringTokenizer Token = new StringTokenizer(line, "|", false);
          type[c] = toInt(Token.nextToken());
          if (type[c] != 3)
            this.data[c] = Token.nextToken();
          c += 1;
        }        
      }
    } catch (IOException e) {
      System.out.println("IO Error:" + e.getMessage());
    }
    if (c != length) 
      System.err.println("Error: Size Missmatch, Number of Elements is wrong!");
  }

 /**
  * Creates new arrays of the correct length so we can store
  * Information.
  *
  * @param i            Length required.
  */
  private void buildNew(int i) {
    length = i;
    count = 0;
    subCount = 0;
    type = new int[i];
    data = new String[i];
  }

 /**
  * Converts a String to an int;
  *
  * @param s            The String to be converted
  * @return             an <code>int</code> value from s
  */
  private int toInt(String s) {
    Integer cToI = new Integer(s);
    return cToI.intValue();
  }
}