float r = 0;
float theta = 0;

float colVar_r;
float colVar_g;
float colVar_b;


void setup(){
  size(400,300);
  background(209);
  smooth();
}

void draw(){
  
  float x = r * cos(theta);
  float y = r * sin(theta);
  
  noStroke();
  fill(109);
  ellipse(x+width/2,y+height/2,16,16);
  theta +=0.01;
  r += 0.05;
  
}