​

let capture;

let slider;

let diameter = 20;

const SPACEBAR_KEYCODE = 32;

​

function setup() {

  createCanvas(800, 800);

  background(0);

  colorMode(HSB);

  noStroke();

}

​

function draw() {

  let hue = map(mouseX, 0, width, 0, 720);

  if(mouseIsPressed == true || keyIsDown(SPACEBAR_KEYCODE)){

    noFill();

    stroke(hue, 70, 80, 0.8);

  }else{

    noStroke();

    fill(hue, 70, 80, 0.8); 

  }

​

  diameter = dist(mouseX, mouseY, pmouseX, pmouseY);

  ellipse(mouseX, mouseY, diameter);

​

}

​

function keyPressed(){

  if(key != ' '){

    colorMode(RGB);

    background(204);

    colorMode(HSB);

  }

}

​

​