//javac -classpath ../jogl-1.1.1-rc7-linux-i586/lib/jogl.jar:../jogl-1.1.1-rc7-linux-i586/lib/gluegen-rt.jar:. J1_1_Point.java
//java -classpath ../jogl-1.1.1-rc7-linux-i586/lib/jogl.jar:../jogl-1.1.1-rc7-linux-i586/lib/gluegen-rt.jar:. -Djava.library.path=../jogl-1.1.1-rc7-linux-i586/lib/ J1_1_Point

//Windows:

//C:\Program Files\Java\joglprogs>javac -classpath jogl.jar;gluegen-rt.jar;. J1_1_Point.java
//C:\Program Files\Java\joglprogs>java -classpath jogl.jar;gluegen-rt.jar;. -Djava.library.path=. J1_1_Point


// gluegen-rt.dll This dll's not needed  yet                    
// gluegen-rt.jar
// jogl.dll
// jogl.jar
// jogl_awt.dll
// jogl_cg.dll

import java.awt.*;
//import java.awt.event.WindowAdapter;  // **Added 
//import java.awt.event.WindowEvent;    //**Added
//import net.java.games.jogl.*;       //**Removed
import javax.media.opengl.GL;
import javax.media.opengl.*;
import javax.media.opengl.glu.GLU;
//import com.sun.opengl.util.Animator;  // **Added

public class J1_2_Line extends J1_1_Point {

  public void display(GLAutoDrawable drawable) {
    int x0, y0, xn, yn, dx, dy;
     
    do {
      x0 = (int) (Math.random()*WIDTH);
      y0 = (int) (Math.random()*HEIGHT);
      xn = (int) (Math.random()*WIDTH);
      yn = (int) (Math.random()*HEIGHT);
      dx = xn - x0;
      dy = yn - y0;

      if (x0>xn) {
        dx=-dx;
      }
      if (y0>yn) {
        dy = -dy;
      }
    } while (dy>dx);

    gl.glColor3f(0,1,0);
    line(x0, y0, xn,yn);
  }

  void line(int x0, int y0, int xn, int yn) {
    int x;
    float m,y;

    m = (float) (yn-y0)/(xn-x0);

    x=x0;
    y=y0;

    while (x < xn+1) {
      gl.glBegin(GL.GL_POINTS);
      gl.glVertex2i(x, (int)y);
      gl.glEnd();

      x++;
      y += m;
    }
  }

  public static void main(String[] args) {
    J1_2_Line f = new J1_2_Line();
    
    f.setTitle("JOGL J1_2_Point");
    f.setSize(WIDTH, HEIGHT);
    f.setVisible(true);
  }
}