SEMAFORO EN PROCESSING

CODIGO HECHO POR MI:
size(160, 300);
background(175, 200, 100);
smooth();
fill(88, 60, 23);
strokeWeight(1);
rect(75, 150, 10, 100);
fill(45, 87, 44);
rect(65, 50, 30, 100);
fill(250, 0, 0);
strokeWeight(0);
ellipse(80, 70, 20, 20);
fill(255, 198, 0);
ellipse(80, 100, 20, 20);
fill(0, 255, 0);
ellipse(80, 130, 20, 20);
fill(100);
rect(0, 250, 160, 50);
strokeWeight(3);
line(0, 250, 160, 250);
fill(255);
strokeWeight(0);
rect(0, 270, 20, 10);
rect(30, 270, 20, 10);
rect(60, 270, 20, 10);
rect(90, 270, 20, 10);
rect(120, 270, 20, 10);
rect(150, 270, 20, 10);