/* "RevAl_MagicMedallion.java" */
/* <c> 1997 Joe Rosen */
/* java applet, "Rev. Al Sharpton" (Magic Medallion) */

import java.applet.Applet;
import java.awt.*;

public class RevAl_MagicMedallion extends java.applet.Applet implements Runnable {

 /* program constants */

 /* main portrait width and height */
 final int  MAIN_WDTH = 381;
 final int  MAIN_HGHT = 361;

 /* animated miniature medallion top/left */
 final int  ANIM_MEDAL_TOP = 281;
 final int  ANIM_MEDAL_LEFT = 173;
 /* animated miniature medallion width and height */
 final int  ANIM_MEDAL_WDTH = 50;
 final int  ANIM_MEDAL_HGHT = 51;

 /* magnified (large) medallion top/left */
 final int  LRG_MEDAL_TOP = 7;
 final int  LRG_MEDAL_LEFT = 249;
 /* magnified (large) medallion width and height */
 final int  LRG_MEDAL_WDTH = 125;
 final int  LRG_MEDAL_HGHT = 127;

 /* variables */

 /* images */
 /* main portrait gif */
 Image         main_Image;
 /* animated miniature medallion gifs (5 images) */
 Image         anim_MiniMedallion[];
 /* full-size (large) medallion gifs (5 images) */
 Image         large_Medallion[];

 /*  medallion gifs index (alternate between 5 images) */
 int           medallion_Idx;
 /* miniature medallion animation flag */
 boolean       miniMedallionAnm_Flg;

 /* medallion word balloon idx */
 int           madallionBalloon_Flg; // 2 phrases (1/2)

 /* Rev. Al, MediaTracker */
 MediaTracker  revAl_MediaTracker;

 /* Rev. Al, offscreen graphics context (composite buffer) */
 Image         offRevAl_Image;
 Graphics      offRevAl_Graphics;

 /* magnifying ray polygon */
 Polygon       magRayPoly;
 /* magnifying ray polygon flag */
 boolean       magRayPoly_Flg;

 /* Rev. Al, animation thread */	
 Thread        animation_Thread = null;


 /* methods invoked by Java */

 /* "init()"
  * initialize the applet */
 public void init()
 {

  // initialization loop counter
  int  lpCnt;

  /* resize canvas */
  resize(MAIN_WDTH + 1,MAIN_HGHT + 1);

  /* create offscreen graphics context, Rev. Al composite buffer */
  offRevAl_Image = createImage(MAIN_WDTH,MAIN_HGHT);
  offRevAl_Graphics = offRevAl_Image.getGraphics();

  /* retrieve .gif images */
  /* main portrait (381W X 393H) */
  main_Image = getImage(getCodeBase(),"images/medal_portrait.gif");
  /* animated miniature medallions (50W X 51H) */
  anim_MiniMedallion = new Image[5];
  anim_MiniMedallion[0] = getImage(getCodeBase(),"images/sml_medal_1.gif");
  anim_MiniMedallion[1] = getImage(getCodeBase(),"images/sml_medal_2.gif");
  anim_MiniMedallion[2] = getImage(getCodeBase(),"images/sml_medal_3.gif");
  anim_MiniMedallion[3] = getImage(getCodeBase(),"images/sml_medal_4.gif");
  anim_MiniMedallion[4] = getImage(getCodeBase(),"images/sml_medal_5.gif");
  /* full-size (large) medallion gifs (5 images) */
  large_Medallion = new Image[5];
  large_Medallion[0] = getImage(getCodeBase(),"images/lrg_medal_1.gif");
  large_Medallion[1] = getImage(getCodeBase(),"images/lrg_medal_2.gif");
  large_Medallion[2] = getImage(getCodeBase(),"images/lrg_medal_3.gif");
  large_Medallion[3] = getImage(getCodeBase(),"images/lrg_medal_4.gif");
  large_Medallion[4] = getImage(getCodeBase(),"images/lrg_medal_5.gif");

  /* init Rev. Al MediaTracker */
  revAl_MediaTracker = new MediaTracker(this);
  /* load images into MediaTracker */
  revAl_MediaTracker.addImage(main_Image,0);
  for (lpCnt = 0; lpCnt < 5; lpCnt++)
   revAl_MediaTracker.addImage(anim_MiniMedallion[lpCnt],lpCnt + 1);
  for (lpCnt = 0; lpCnt < 5; lpCnt++)
   revAl_MediaTracker.addImage(large_Medallion[lpCnt],lpCnt + 6);

  /* init medallion gifs index (alternate between 5 images) */
  medallion_Idx = 0; // init to 1st image
  /* init miniature medallion animation flag */
  miniMedallionAnm_Flg = true; // initially animating

  /* init/create magnifying ray polygon */
  magRayPoly = new Polygon();
  magRayPoly.addPoint(372,70);
  magRayPoly.addPoint(198,306);
  magRayPoly.addPoint(250,70);

  /* init magnifying ray polygon flag */
  magRayPoly_Flg = false; // initially not visible

 } /* end method "init" */


 /* "start()"
  * called when the applet becomes visible on screen */
 public void start()
 {

  /* start animator thread */
  animation_Thread = new Thread(this);
  animation_Thread.start();

 } /* end method "start" */


 /* "run()"
  * called (repeatedly) by the Thread created in "start()" */
 public void run()
 {

  /* update animator thread */
  while (Thread.currentThread() == animation_Thread) {

   /* inc/reset medallion gifs index (alternate between 5 images) */
   if (miniMedallionAnm_Flg == true) {
    if (medallion_Idx < 4)
     medallion_Idx++;
    else
     medallion_Idx = 0;
   }

   /* repaint (update) the screen */
   repaint();

   /* begin: thread delay (250 milliseconds) */
   try {
    Thread.sleep(250);
   } catch (InterruptedException e) {
      break;
     } /* end: thread delay */

  } /* end "while (Thread.currentThread() == animation_Thread)" */

 } /* end method "run" */


 /* "stop()"
  * called when the applet is no longer visible on screen */
 public void stop()
 {

  /* stop animator thread */
  if (animation_Thread != null)
   animation_Thread.stop();

  animation_Thread = null;

 } /* end method "stop" */


 /* "destroy()"
  * called just before the browser exits */
 public void destroy() {

  /* dispose offscreen graphics context, Rev. Al composite buffer */
  offRevAl_Graphics.dispose(); offRevAl_Graphics = null;

 } /* end method "destroy" */


 /* "mouseDown()"
  * called when the mouse button is pressed down */
 public boolean mouseDown(Event evt, int x, int y) {

  /* suspend miniature medallion anim */
  miniMedallionAnm_Flg = false;

  /* mark magnifying ray polygon flag */
  magRayPoly_Flg = true; // mark visible

  /* init medallion word balloon idx */
  madallionBalloon_Flg = 1; // 1st (of 2) phrases

  /* force immediate repaint */
  repaint();
 
  return true;

 } /* end method "mouseDown" */


 /* "mouseUp()"
  * called when the mouse button comes back up */
 public boolean mouseUp(Event evt, int x, int y) {

  /* resume miniature medallion anim */
  miniMedallionAnm_Flg = true;

  /* mark magnifying ray polygon flag */
  magRayPoly_Flg = false; // mark invisible

  /* force immediate repaint */
  repaint();
 
  return true;

 } /* end method "mouseUp" */


 /* "update()"
  * update the screen */
 public void update(Graphics  g)
 {

  /* (intercepting "update" avoids background erase) */
  /* call "paint" */
  paint(g);

 } /* end method "update" */


 /* "paint()"
  * paint the screen */
 public void paint(Graphics  g)
 {

  /* font */
  Font  txt_Font;

  /* wait for images to laod before drawing */
  if (revAl_MediaTracker.checkAll(true) == true) {

   /* draw main portrait (in buffer) */
   offRevAl_Graphics.drawImage(main_Image,0,0,this);

   /* draw animated miniature medallion gif */
   offRevAl_Graphics.drawImage(
    anim_MiniMedallion[medallion_Idx],ANIM_MEDAL_LEFT,ANIM_MEDAL_TOP,this );

   /* draw magnifying rays and large medallion (?) */
   if (magRayPoly_Flg == true) {
//  offRevAl_Graphics.drawPolygon(magRayPoly);
    offRevAl_Graphics.setColor(Color.black);
    offRevAl_Graphics.drawLine(198,306,250,70);
    offRevAl_Graphics.drawLine(198,306,372,70);
    offRevAl_Graphics.setColor(Color.cyan);
    offRevAl_Graphics.drawLine(198,306,251,70);
    offRevAl_Graphics.drawLine(198,306,252,70);
    offRevAl_Graphics.drawLine(198,306,371,70);
    offRevAl_Graphics.drawLine(198,307,370,70);
    offRevAl_Graphics.drawImage(
     large_Medallion[medallion_Idx],LRG_MEDAL_LEFT,LRG_MEDAL_TOP,this );
    offRevAl_Graphics.setColor(Color.black);
    /* text font */
    txt_Font = new Font("Helvetica", Font.BOLD, 12);
    /* write/draw text message */
    switch (medallion_Idx) {
     /* chasid */
     case 0:
      if (madallionBalloon_Flg == 1) {
       offRevAl_Graphics.drawString("I AM A",LRG_MEDAL_LEFT+45,LRG_MEDAL_TOP+25);
       madallionBalloon_Flg = 2;
      }
      else {
       offRevAl_Graphics.drawString("CHASID.",LRG_MEDAL_LEFT+45,LRG_MEDAL_TOP+25);
       madallionBalloon_Flg = 1;
      }
      break;
     /* Ed Koch */
     case 2:
      if (madallionBalloon_Flg == 1) {
       offRevAl_Graphics.drawString("I WAS",LRG_MEDAL_LEFT+45,LRG_MEDAL_TOP+25);
       madallionBalloon_Flg = 2;
      }
      else {
       offRevAl_Graphics.drawString("THE MAYOR.",LRG_MEDAL_LEFT+35,LRG_MEDAL_TOP+25);
       madallionBalloon_Flg = 1;
      }
      break;
    } // end "switch (medallion_Idx)"
   }

  } // end "if (revAl_MediaTracker.checkAll(true) == true)"

  /* begin: write text message, "Loading Images..." */
  else {
   /* text font */
   txt_Font = new Font("Helvetica", Font.PLAIN, 9);
   /* fill buffer with white paint */
   offRevAl_Graphics.setColor(Color.white);
   offRevAl_Graphics.fillRect(0,0,MAIN_WDTH,MAIN_HGHT);
   /* set text string font */
   offRevAl_Graphics.setFont(txt_Font);
   /* set text string color */
   offRevAl_Graphics.setColor(Color.black);
   /* write/draw text message */
   offRevAl_Graphics.drawString("Loading Images...",25,25);
  }
  /* end: write text message, "Loading Images..." */

  /* frame entire buffer with black color */
  offRevAl_Graphics.setColor(Color.black);
  offRevAl_Graphics.drawRect(0,0,MAIN_WDTH - 1,MAIN_HGHT - 1);

  /* blast buffer to screen */
  g.drawImage(offRevAl_Image,0,0,this);

 } /* end method "paint" */

} /* end class "RevAl_MagicMedallion" */

/* end file "RevAl_MagicMedallion.java" */