float rand = 0;
  Float a = 0.0;
  float inc = TWO_PI/10.0;
String gridName = "Joey";
void setup() {
  size(1000, 1000);
  background(100);
  colorMode(RGB);
  smooth();
  noStroke();
  frameRate(10);
  for (int i=0; i < width; i+=20) {
  fill(random(255), random(255), random(255));
  rect(0, i, width, 10);
  fill(random(255), random(255), random(255));
  rect(i, 0, 10, height);}
  stroke(random(255),random(255),random(255));
}
void draw() {
  stroke(255);
  for (int i = 0; i < 200; i += 20) {
    

 
        
          for (; i<1000; i+=5) {
    line(i, 500, i, 400+sin(a)*100.0);
    line(i+10, 500, i+10, 600+-sin(a)*100.0);
    println(" The angle = " + a + "The sin = " + sin(a));
    a = a + inc;
    
          if (i<3) {
          fill(0,0, random(255));
       quad(0, 300, 1000, 300, 1000, 700, 0, 700);
    }
  }
  }
}