import processing.opengl.*;

void setup() {
  size(500, 500, OPENGL);

  PFont font = loadFont("Arial");
  textFont(font,30);
  
  fill(0);
  pushMatrix();
  translate(width/2, height/2, 0);
  text("testing", 0,0,0);
  popMatrix(); 

  noFill();

  stroke(0,0,255);
  strokeWeight(2);
  pushMatrix();
  translate(width/2, height/2, 0);
  for(int i=0; i < 10; i++){
    line(random(-width/2, width/2), random(-height/2, height/2), random(-height/2, height/2),
         random(-height/2, height/2),random(-height/2, height/2),random(-height/2, height/2));
  }
  popMatrix();

  pushMatrix();
  translate(width/2, height/2, 0);
  text("testing", 0,30,0);
  popMatrix(); 

  stroke(255,0,0);
  strokeWeight(3);
  pushMatrix();
  translate(width/2, height/2, 0);
  for(int i=0; i < 100; i++){
    point(random(-width/2, width/2), random(-height/2, height/2), 0);
  }
  popMatrix();

  fill(0);
  pushMatrix();
  translate(width/2, height/2, 0);
  text("testing", 0,60,0);
  popMatrix(); 

  stroke(0,255,0);
  strokeWeight(1);
  pushMatrix();
  translate(width/2, height/2, 0);
  for(int i=0; i < 10; i++){
    rect(random(-width/2, width/2), random(-height/2, height/2),
        random(15,25), random(15,25));
  }
  popMatrix();

  fill(0);
  pushMatrix();
  translate(width/2, height/2, 0);
  text("testing", 0,90,0);
  popMatrix(); 

  stroke(0,128,128);
  strokeWeight(1);
  pushMatrix();
  translate(width/2, height/2, 0);
  for(int i=0; i < 5; i++){
    translate(random(-width/4, width/4), random(-height/4, height/4), 0);
    sphere(40);
  }
  popMatrix();

  fill(0);
  pushMatrix();
  translate(width/2, height/2, 0);
  text("testing", 0,120,0);
  popMatrix();

  pushMatrix();
  translate(width/2, height/2, 0);
  for(int i=0; i < 5; i++){
    translate(random(-width/4, width/4), random(-height/4, height/4), 0);
    box(40);
  }
  popMatrix();
}