float ellipseXPosition;
color red = color(255,0,0);
color randomColor = randomColor();


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

  ellipseXPosition = 250;
}


void draw() {
  background(255,255,255);
  fill(randomColor);

  circle(250,250,300);

  //ellipseXPosition = ellipseXPosition + 0.2;
}

void circle(float xPos, float yPos, float diameter) {

  //        x    y     width      hight
  //      float float float      float
  ellipse(xPos, yPos, diameter, diameter);

}

color randomColor() {

  float r = random(0,255);
  float g = random(0,255);
  float b = random(0,255);

  color resultColor = color(r,g,b);

  return resultColor;
}