//*********************************************************************
//*  Programmer    : Jang Kyu-O(Àå ±Ô¿À)                              *
//*  Date          : 1996/2/10                                        *
//*  E-Mail        : kojang@ctkhost.ctk.co.kr                         *
//*  Tel           : +82-02-3149-4821                                 *
//*  Address       : Á¦À̾¾Çö ¿¤¸²³×Æ®»ç¾÷º»ºÎ À¥ÆÀ                   *
//*********************************************************************

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

public class DasenAnim extends Applet implements Runnable
{
    int            delay;
    boolean        isbegin=true;
    Thread         animator;
    boolean        onanim=true;

    Image          animDasenimg, picimg;
    Graphics       animDasenmap;
    Rectangle      r;

    int            numimg;
    int            count=0;
    Hashtable      frames;
    MediaTracker   tracker;

    AudioClip      background;
    AudioClip      bubble;
    boolean        isloaded=false;

    int            image_w=120, image_h=100;

    static String abridge(String s, int len) {
	String ellipsis = "...";

	if (len >= s.length()) {
	    return s;
	}

	int trim = len - ellipsis.length();
	return s.substring(0, trim / 2)+ellipsis+
	    s.substring(s.length() - trim / 2);
    }
    void tellLoadingMsg(String file, String fileType) {
	showStatus("DASEN : loading "+fileType+" "+abridge(file, 20));
    }
    void clearLoadingMessage() {
	showStatus("");
    }

    void parseImages(String attr)
        throws MalformedURLException 
    {
	frames = new Hashtable();
        tracker = new MediaTracker(this);

        int leng=0;
	for (int i = 0 ; i < numimg ; i++) {
	    int next = attr.indexOf('|', leng);
	    if (next == -1) next = attr.length();
	    
	    String s = attr.substring(leng, next);
	    if (s.length() != 0) {
                tellLoadingMsg("images/"+s, "images");
                Image animDasenimg = getImage(getCodeBase(), "images/"+s);
                frames.put(new Integer(i), animDasenimg);
                tracker.addImage(animDasenimg, 0);
                // System.out.println("images/"+s);
	    }
	    leng = next + 1;
	}
        clearLoadingMessage();
    }

    /**
     * Initialize the applet and compute the delay between frames.
     */
    public void init()
    {
        String str=null;

        try {
            str = getParameter("imgnumber");
        } catch(Exception e) {
            System.out.println(e);
        }
	numimg = (str != null) ? Integer.parseInt(str) : 1;
        // System.out.println("Number of Images : "+numimg);

        try {
            str = getParameter("delay");
        } catch(Exception e) {
            System.out.println(e);
        }
	delay = (str != null) ? Integer.parseInt(str) : 1000;
        // System.out.println("Delay : "+delay);

        try {
            str = getParameter("images");
            // System.out.println("Images : "+str);
            parseImages(str);
        } catch(Exception e) {
            System.out.println(e);
        }

        tellLoadingMsg("audio/spacemusic.au", "audio");
	background = getAudioClip(getCodeBase(), "audio/spacemusic.au");
        tellLoadingMsg("audio/bubble1.au", "audio");
	bubble = getAudioClip(getCodeBase(), "audio/bubble1.au");


    }

    /**
     * This method is called when the applet becomes visible on
     * the screen. Create a thread and start it.
     */
    public void start() {
	animator = new Thread(this);
	animator.start();
	// Start the background music
	background.loop();
    }

    /**
     * This method is called when the applet is no longer
     * visible. Set the animator variable to null so that the
     * thread will exit before displaying the next frame.
     */
    public void stop() {
	animator = null;
        // Stop the background music
	background.stop();
    }


    public boolean mouseDown(Event evt, int x, int y) {
        if(isloaded==false) return true;

        if(onanim==true) onanim=false;
        else onanim = true;
        return true;
    }

    /**
     * This method is called by the thread that was created in
     * the start method. It does the main animation.
     */
    public void run() {
	while (Thread.currentThread() == animator) {
	    repaint();

	    if(onanim==true) {
                count++;
                count %= numimg;
            }

            try {
	        if(isloaded==true)
                    Thread.sleep(100);
                else 
                    Thread.sleep(20);
	    } catch (InterruptedException e) {
		break;
	    }
	}
    }

    // ¹ÙÅÁÀ» Áö¿î´Ù.
    private void setBatang(Graphics g) {
        g.setColor(new Color(0, 0, 140));
        g.fillRect(0, 0, r.width, r.height);
    }

    /**
     * Paint the previous frame (if any).
     */
    public void paint(Graphics g) {
        r = bounds();

        if(isbegin==true) {
            animDasenimg = createImage(image_w, image_h);
            animDasenmap = animDasenimg.getGraphics();
            picimg = getImage(getCodeBase(), "images/"+"pic.gif");
            
            isbegin = false;
        }

	update(g);
    }

    String waitMessage = "Àá½Ã ±â´Ù·Á ÁÖ¼¼¿ä. À̹ÌÁö¸¦ Àаí ÀÖ½À´Ï´Ù.";
    String waitMessageEng = "Please Wait!                Reading images...";
    int msgstart=0;
    Font font = new Font("Helvista", 1, 16);
    FontMetrics fontx = getFontMetrics(font);

    /**
     * Update a frame of animation.
     */
    public void update(Graphics g) {
        if(tracker.statusID(0, true) == MediaTracker.COMPLETE) {
            animDasenmap.drawImage( (Image)frames.get(new Integer(count)), 0, 0, this);
            isloaded=true;
        } else {
            setBatang(animDasenmap);
            animDasenmap.setFont(font);
            animDasenmap.setColor(Color.yellow);
            animDasenmap.drawString(waitMessage, image_w-msgstart++, 40);
            animDasenmap.setColor(Color.white);
            animDasenmap.drawString(waitMessageEng, image_w-msgstart++, 60);
            int msgleng = fontx.stringWidth(waitMessage);
            if( msgleng+image_w < msgstart) msgstart=0; 
        }

	// Paint the image onto the screen
        g.drawImage( animDasenimg, 0, 0, this);

	if ((count % 3) == 0) {
	    bubble.play();
	}
    }
}