let maxPetalSize = 200;

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(255);

​

​

  let bloomSize = map(mouseX, 0, width, 0, maxPetalSize);

​

  drawFlower(width/2, height/2, bloomSize);

}

​

function drawFlower(x, y, size) {

  push();

  translate(x, y);

​

  for (let i = 0; i < petalCount; i++) {

    let angle = TWO_PI / petalCount * i;

    push();

    rotate(angle);

​

    let colorFactor = map(size, 0, maxPetalSize, 255, 100);

    fill(255, colorFactor, colorFactor);

    drawPetal(size);

    pop();

  }

  fill(255,200,0);

  ellipse(0, 0, size);

  pop();

}

​

function drawPetal(size) {

  ellipse(size / 2, 0, size, size * 3);

}

​