Datatid 2000 #1/Datatid-2000-01.iso/Internet/SPLASH/SPLASH12.EXE/data1.cab/Plugins/_Imaging/Hawk_Ray/HawkRay.class

Java Class File | 1998-12-18 | 4.0 KB | 176 lines

import java.applet.Applet;
import java.awt.Component;
import java.awt.Event;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;

public class HawkRay extends Applet implements Runnable {
   // $FF: renamed from: w int
   private int field_0;
   // $FF: renamed from: h int
   private int field_1;
   private int dispx;
   private int dispz;
   private int m_sw;
   private int m_sh;
   private int[] texel;
   private int m_cos1;
   private int m_sin1;
   private int xres;
   private int yres;
   private int[] screenPixel;
   private int m_alti = 120;
   // $FF: renamed from: d int
   private int field_2 = 1;
   private int viewA = 180;
   private int dViewA = 3;
   private int paintCnt;
   private int garbageCnt;
   private MemoryImageSource screenMem;
   private Thread theThread;
   private Image screenImage;
   private boolean m_tAnimate = true;

   public void init() {
      MediaTracker var1 = new MediaTracker(this);
      Image var2 = ((Applet)this).getImage(((Applet)this).getDocumentBase(), ((Applet)this).getParameter("image"));
      this.m_sh = ((Component)this).size().height << 2;
      this.m_sw = ((Component)this).size().width;
      this.screenPixel = new int[this.m_sw * this.m_sh >> 2];
      this.screenMem = new MemoryImageSource(this.m_sw, this.m_sh >> 2, this.screenPixel, 0, this.m_sw);
      var1.addImage(var2, 0);

      try {
         var1.waitForID(0);
      } catch (Exception var5) {
      }

      this.field_0 = var2.getWidth(this);
      this.field_1 = var2.getHeight(this);
      this.texel = new int[this.field_0 * this.field_1];
      PixelGrabber var3 = new PixelGrabber(var2.getSource(), 0, 0, this.field_0, this.field_1, this.texel, 0, this.field_0);

      try {
         var3.grabPixels();
      } catch (Exception var4) {
         return;
      }

      Object var6 = null;
   }

   public void start() {
      (this.theThread = new Thread(this)).start();
   }

   public void stop() {
      if (this.theThread != null) {
         this.theThread.stop();
         this.theThread = null;
      }

   }

   public void run() {
      while(this.theThread != null) {
         if (this.paintCnt++ < 5 && this.m_tAnimate) {
            if (this.viewA > 720) {
               this.dViewA = -1;
            } else if (this.viewA < 360) {
               this.dViewA = 1;
            }

            this.viewA += this.dViewA;
            this.renderImage();
            ((Component)this).repaint();

            try {
               Thread.sleep(50L);
            } catch (InterruptedException var2) {
            }
         } else {
            try {
               Thread.sleep(1000L);
            } catch (InterruptedException var1) {
            }
         }

         if (this.garbageCnt++ > 120) {
            System.gc();
            this.garbageCnt = 0;
         }
      }

   }

   public boolean mouseDown(Event var1, int var2, int var3) {
      this.m_tAnimate = !this.m_tAnimate;
      return true;
   }

   public void update(Graphics var1) {
      this.paint(var1);
   }

   public void paint(Graphics var1) {
      this.paintCnt = 0;
      if (this.screenImage != null) {
         var1.drawImage(this.screenImage, 0, 0, this);
      }

   }

   private void renderImage() {
      int var8 = 0;
      this.m_alti = (int)((double)240.0F - (double)120.0F * Math.sin((double)this.viewA * 3.1415926 / (double)180.0F));
      this.m_sin1 = (int)((double)1024.0F * Math.sin((double)this.viewA * 3.1415926 / (double)180.0F));
      this.m_cos1 = (int)((double)1024.0F * Math.cos((double)this.viewA * 3.1415926 / (double)180.0F));
      int var7 = this.field_0 * (this.viewA % 360) / 360;
      this.dispz += this.m_cos1 << 3;
      this.dispx += this.m_sin1 << 3;

      for(int var11 = (3 * this.m_sh >> 2) + 1; var11 <= this.m_sh; ++var11) {
         this.planePoint(0, var11);
         int var1 = this.xres;
         int var2 = this.yres;
         this.planePoint(this.m_sw - 1, var11);
         int var3 = this.xres;
         int var4 = this.yres;
         int var9 = (var3 - var1) / (this.m_sw - 1);
         int var10 = (var4 - var2) / (this.m_sw - 1);
         var9 = (var9 % (this.field_0 << 10) + (this.field_0 << 10)) % (this.field_0 << 10);
         var10 = (var10 % (this.field_1 << 10) + (this.field_1 << 10)) % (this.field_1 << 10);

         for(int var12 = 0; var12 < this.m_sw; ++var12) {
            int var5 = (var1 >> 10) % this.field_0;
            if (var5 < 0) {
               var5 += this.field_0;
            }

            int var6 = (var2 >> 10) % this.field_1;
            if (var6 < 0) {
               var6 += this.field_1;
            }

            this.screenPixel[var8++] = this.texel[var6 * this.field_0 + var5];
            var1 += var9;
            var2 += var10;
         }
      }

      this.screenImage = ((Component)this).createImage(this.screenMem);
   }

   private void planePoint(int var1, int var2) {
      double var5 = (double)(var2 << 1) / (double)this.m_sh - (double)1.0F;
      double var7 = (double)this.field_2 * ((double)this.m_alti - var5) / var5;
      double var3 = (double)(var1 - (this.m_sw >> 1)) / (double)this.m_sw;
      double var9 = var3 * (var7 + (double)this.field_2) / (double)this.field_2;
      this.xres = (int)((double)this.m_cos1 * var9 + (double)this.m_sin1 * var7) + this.dispx;
      this.yres = (int)((double)(-this.m_sin1) * var9 + (double)this.m_cos1 * var7) + this.dispz;
   }
}