// Circular Waves

int x = 1;

void setup()
{
  size(800, 800);
  background(255, 255, 255);
  strokeWeight(10);
}

void draw()
{
  if (mousePressed)
  {
    //Generates circles, with ascending diameters, where mouse click has happened
    background(255, 255, 255);
    //Each circle's diameter is 40 greater than the previous one
    ellipse(mouseX, mouseY, x, x);
    x = x + 40;
  } else {
    //Sets the initial diameter to 1, when mouse is released
    x =1;
  }
}