import javax.media.opengl.*;

import com.sun.opengl.util.Animator;

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class Complex implements GLEventListener {
	 public static void main(String[ ] args) {
	    Frame frame = new Frame("Basic"); // create the frame
	    frame.setSize(500, 500); // give it a size
	    GLCanvas canvas = new GLCanvas(); // create the canvas
	    Complex basic = new Complex(); // create the listener
	    canvas.addGLEventListener(basic); // add listener to canvas
	    frame.add(canvas);//add canvas to window
	    frame.setVisible(true); // show window
	  }
	public void init(GLAutoDrawable drawable) {
		GL gl = drawable.getGL();
		gl.glEnable(GL.GL_CULL_FACE);
	    gl.glEnable(GL.GL_DEPTH_TEST);
	}
	public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
		  GL gl = drawable.getGL();
	      float ratio = (float)height / (float)width; // compute height/width ratio
	      gl.glMatrixMode(GL.GL_PROJECTION);
	      gl.glLoadIdentity();
	      gl.glFrustum(-1.0f, 1.0f, -ratio, ratio, 5.0f, 6000.0f);
	      gl.glMatrixMode(GL.GL_MODELVIEW);
	}
	public void display(GLAutoDrawable drawable) {
		  GL gl = drawable.getGL();
	      gl.glClearColor(0.3f, 0.3f, 0.99f, 1.0f); // a blue sky
	      gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
	      // set the view transformation
	      gl.glLoadIdentity();
	      gl.glTranslatef(0.f, -4.f, 0.0f); // look from a bit above the floor
	      // draw the floor
	      drawFloor(gl);
	      // draw some pyramids
	      drawScenery(gl);
     }
	public void displayChanged(GLAutoDrawable arg0, boolean arg1, boolean arg2) {
		// TODO Auto-generated method stub

	}
    // draw the floor
    private void drawFloor(GL gl)
    {
        gl.glBegin(GL.GL_QUADS);
            gl.glColor3f(0.3f, 0.7f, 0.3f);
            gl.glVertex3f(-1000.0f, 0.0f,  1000.0f);
            gl.glVertex3f( 1000.0f, 0.0f,  1000.0f);
            gl.glVertex3f( 1000.0f, 0.0f, -1000.0f);
            gl.glVertex3f(-1000.0f, 0.0f, -1000.0f);
        gl.glEnd();
     }

     // draw some pyramids
    private void drawScenery(GL gl)
    {
      for(int i = 0; i < 10; i++) {
        for(int j = 0; j < 10; j++) {
          gl.glPushMatrix();
	      gl.glTranslatef(i*200.f - 900.f, 5.f, j*200.f - 1000.f);
          gl.glScalef(10.f, 10.f, 10.f);
          gl.glColor3f(((float)i) / 10.0f, ((float)j) / 10.0f, ((float)i+j) / 20.0f);
          gl.glBegin(GL.GL_TRIANGLES);
            gl.glVertex3f(0.0f, 1.0f, 0.0f);	//Top Of Triangle (Front)
            gl.glVertex3f(-1.0f, -1.0f, 1.0f);	//Left Of Triangle (Front)
            gl.glVertex3f(1.0f, -1.0f, 1.0f);	//Right Of Triangle (Front)

            gl.glVertex3f(0.0f, 1.0f, 0.0f);	//Top Of Triangle (Right)
            gl.glVertex3f(1.0f, -1.0f, 1.0f);	//Left Of Triangle (Right)
            gl.glVertex3f(1.0f, -1.0f, -1.0f);	//Right Of Triangle (Right)

            gl.glVertex3f(0.0f, 1.0f, 0.0f);	//Top Of Triangle (Back)
            gl.glVertex3f(1.0f, -1.0f, -1.0f);	//Left Of Triangle (Back)
            gl.glVertex3f(-1.0f, -1.0f, -1.0f);	//Right Of Triangle (Back)

            gl.glVertex3f(0.0f, 1.0f, 0.0f);	//Top Of Triangle (Left)
            gl.glVertex3f(-1.0f, -1.0f, -1.0f);	//Left Of Triangle (Left)
            gl.glVertex3f(-1.0f, -1.0f, 1.0f);	//Right Of Triangle (Left)
          gl.glEnd();
          gl.glPopMatrix();
        }
      }
    }
}