import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
import java.util.Random;

import javax.media.opengl.GL;
import javax.media.opengl.GL2;

public class Square {

    FloatBuffer mFVertexBuffer;
    ByteBuffer mColorBuffer;
    ShortBuffer mTfan3;
    FloatBuffer mNormalBuffer;

    float verts[] = null;
    float normals[] = null;
    // short normalsi[] = null;
    short faces[] = null;
    byte newcolors[] = null;

    public Square() {

        try {
            ObjParser.parse(new FileInputStream("res/sphere.obj"));
            verts = ObjParser.vertices;
            faces = ObjParser.faces;
            normals = ObjParser.normals;
        } catch (Exception e) {
            e.printStackTrace();
        }

        //ObjParser.toFile();

        Random rand = new Random();

        newcolors = new byte[verts.length * 4];

        for (int i = 0; i < newcolors.length; i += 4) {
            newcolors[i] = (byte) 0;// rand.nextInt(256);
            newcolors[i + 1] = (byte) 255; //rand.nextInt(256);
            newcolors[i + 2] = (byte) 0;// rand.nextInt(256);
            newcolors[i + 3] = (byte) 255;
        }

        mFVertexBuffer = ChibiUtil.makeFloatBuffer(verts);
        mNormalBuffer = ChibiUtil.makeFloatBuffer(normals);

        mColorBuffer = ByteBuffer.allocateDirect(newcolors.length);
        mColorBuffer.put(newcolors);
        mColorBuffer.position(0);

        ByteBuffer ib = ByteBuffer.allocateDirect(faces.length * 2);
        ib.order(ByteOrder.nativeOrder());
        mTfan3 = ib.asShortBuffer();
        mTfan3.put(faces);
        mTfan3.position(0);



    }

    public void draw(GL2 gl) {

        gl.glEnableClientState(GL2.GL_NORMAL_ARRAY);
        gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
        gl.glEnableClientState(GL2.GL_COLOR_ARRAY);

        gl.glNormalPointer(GL.GL_FLOAT, 0, mNormalBuffer);
        gl.glVertexPointer(3, GL.GL_FLOAT, 0, mFVertexBuffer);
        gl.glColorPointer(4, GL.GL_UNSIGNED_BYTE, 0, mColorBuffer);
        gl.glDrawElements(GL2.GL_LINES, faces.length , GL2.GL_UNSIGNED_SHORT,
                mTfan3);

    }

}