/*

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

import java.applet.Applet;

import java.awt.Graphics;

import java.awt.Color;

import java.awt.event.*;

import java.io.*;

import java.net.URL;

class FileFormatException extends Exception {

    public FileFormatException(String s) {

        super(s);

    }

}

/** The representation of a 3D model */

    float vert[];

    int tvert[];

    int nvert, maxvert;

    int con[];

    int ncon, maxcon;

    boolean transformed;

    Matrix3D mat;

    float xmin, xmax, ymin, ymax, zmin, zmax;

        mat.xrot(20);

        mat.yrot(30);

    }

    /** Create a 3D model by parsing an input stream */

        while (true) {

            switch (st.nextToken()) {

                        if (st.nextToken() == StreamTokenizer.TT_NUMBER) {

                        }

                    }

            }

        }

        is.close();

            throw new FileFormatException(st.toString());

    }

    /** Add a vertex to this model */

    int addVert(float x, float y, float z) {

        int i = nvert;

            if (vert == null) {

                maxvert = 100;

                vert = new float[maxvert * 3];

            } else {

                maxvert *= 2;

                float nv[] = new float[maxvert * 3];

                System.arraycopy(vert, 0, nv, 0, vert.length);

                vert = nv;

            }

        i *= 3;

        vert[i] = x;

        vert[i + 1] = y;

        vert[i + 2] = z;

        return nvert++;

    }

    /** Add a line from vertex p1 to vertex p2 */

    void add(int p1, int p2) {

        int i = ncon;

            return;

            if (con == null) {

                maxcon = 100;

                con = new int[maxcon];

            } else {

                maxcon *= 2;

                int nv[] = new int[maxcon];

                System.arraycopy(con, 0, nv, 0, con.length);

                con = nv;

            }

        if (p1 > p2) {

            int t = p1;

            p1 = p2;

            p2 = t;

        }

        con[i] = (p1 << 16) | p2;

        ncon = i + 1;

    }

    /** Transform all the points in this model */

    void transform() {

            return;

        mat.transform(vert, tvert, nvert);

        transformed = true;

    }

            }

    /** eliminate duplicate lines */

    void compress() {

        int limit = ncon;

        int c[] = con;

        quickSort(con, 0, ncon - 1);

        int d = 0;

        int pp1 = -1;

        for (int i = 0; i < limit; i++) {

            int p1 = c[i];

            if (pp1 != p1) {

                c[d] = p1;

                d++;

            }

            pp1 = p1;

        }

        ncon = d;

    }

    static Color gr[];

    /** Paint this model to a graphics context.  It uses the matrix associated

    void paint(Graphics g) {

            return;

        transform();

        if (gr == null) {

            gr = new Color[16];

            for (int i = 0; i < 16; i++) {

                gr[i] = new Color(grey, grey, grey);

            }

        }

        int lg = 0;

        int lim = ncon;

        int c[] = con;

        int v[] = tvert;

            return;

        for (int i = 0; i < lim; i++) {

            int T = c[i];

            int p1 = ((T >> 16) & 0xFFFF) * 3;

            int p2 = (T & 0xFFFF) * 3;

            int grey = v[p1 + 2] + v[p2 + 2];

                grey = 0;

                grey = 15;

            if (grey != lg) {

                lg = grey;

                g.setColor(gr[grey]);

            }

            g.drawLine(v[p1], v[p1 + 1],

        }

    }

    /** Find the bounding box of this model */

    void findBB() {

            return;

        float v[] = vert;

        for (int i = nvert * 3; (i -= 3) > 0;) {

            float x = v[i];

            float y = v[i + 1];

            float z = v[i + 2];

        }

    }

}

/** An applet to put a 3D model into a page */

public class ThreeD extends Applet

    Model3D md;

    boolean painted = true;

    float xfac;

    int prevx, prevy;

    float scalefudge = 1;

    Matrix3D amat = new Matrix3D(), tmat = new Matrix3D();

    String mdname = null;

    String message = null;

    public void init() {

        mdname = getParameter("model");

        try {

            scalefudge = Float.valueOf(getParameter("scale")).floatValue();

        amat.yrot(20);

        amat.xrot(20);

            mdname = "model.obj";

        resize(getSize().width <= 20 ? 400 : getSize().width,

        addMouseListener(this);

        addMouseMotionListener(this);

    }

    public void destroy() {

        removeMouseListener(this);

        removeMouseMotionListener(this);

    }

    public void run() {

        InputStream is = null;

        try {

            Thread.currentThread().setPriority(Thread.MIN_PRIORITY);

            is = new URL(getDocumentBase(), mdname).openStream();

            md = m;

            m.findBB();

            m.compress();

            float xw = m.xmax - m.xmin;

            float yw = m.ymax - m.ymin;

            float zw = m.zmax - m.zmin;

                xw = yw;

                xw = zw;

            float f1 = getSize().width / xw;

            float f2 = getSize().height / xw;

            xfac = 0.7f * (f1 < f2 ? f1 : f2) * scalefudge;

            md = null;

            message = e.toString();

        }

        try {

                is.close();

        }

        repaint();

    }

    public void start() {

            new Thread(this).start();

    }

    public void stop() {

    }

    }

        prevx = e.getX();

        prevy = e.getY();

        e.consume();

    }

    }

    }

    }

        int x = e.getX();

        int y = e.getY();

        tmat.unit();

        float xtheta = (prevy - y) * 360.0f / getSize().width;

        float ytheta = (x - prevx) * 360.0f / getSize().height;

        tmat.xrot(xtheta);

        tmat.yrot(ytheta);

        amat.mult(tmat);

        if (painted) {

            painted = false;

            repaint();

        }

        prevx = x;

        prevy = y;

        e.consume();

    }

    }

    public void paint(Graphics g) {

        if (md != null) {

            md.mat.unit();

            md.mat.translate(-(md.xmin + md.xmax) / 2,