PShape heart;

float x;
float y;

void setup () {
  size(600, 600);
  
  //noStroke();
  //noFill();
  strokeWeight(2);
  
  heart = createShape(PShape.PATH);
  heart.beginShape();
  for (float t = 0; t < 2*PI; t += 0.001) {
    x = 240*pow(sin(t),3);
    y = 195*cos(t) - 75*cos(2*t) - 30*cos(3*t) - 15*cos(4*t);
    //x = 240*cos(t);
    //y = 240*sin(t);
    heart.vertex(x, y);
  }
  heart.endShape();
  
}

void draw() {
  clear();
  push();
  translate(width/2, height/2);
  
  //println(mouseX + " - " + mouseY);
  if (heart.contains(mouseX-300, mouseY-300)) {
    background(255);
    heart.setFill(0);
  }
  else {
    background(0);
    heart.setFill(255);
  }
  shape(heart, 0, 0);
  pop();
}