// Viral Expansion 2x
// by John Clavin

float R1, G1, B1;
float R2, G2, B2;
color levelColor1;
color levelColor2;
int pF = 6; // powerFactor
float xPos;
float yPos;

void setup() 
{
  size(700, 500);
  background(240);
  stroke(0);
  smooth();
  frameRate(.25);
}

void draw() {
  setColor();
  background(240);
  explode(width/2, height/2, 15);
}
  
void explode(float x, float y, int level) {
  R1 += .0075;
  G1 -= .0075;
  levelColor1 = color(R1, G1, B1);
  R2 += .0075;
  G2 += .0065;
  B2 -= .0075;
  levelColor2 = color(R2, G2, B2);
  xPos = x + int(random(-pF, pF));
  yPos = y + int(random(-pF, pF));
  ellipse(xPos, yPos, 6, 6);
  if(level > 1) {
    level--;
    fill(levelColor1);
    explode(xPos, yPos, level);
    fill(levelColor2);
    explode(xPos, yPos, level);
  }
}

void setColor() {
  R1 = 0;
  G1 = 255;
  B1 = 0;
  R2 = 0;
  G2 = 0;
  B2 = 240;
}