let mDiam = 40;

​

let x0 = 80;

let y0 = 135;

​

let x1 = 345;

let y1 = 240;

​

let x2 = 355;

let y2 = 55;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

}

​

function draw() {

  background(220, 10, 120);

  fill(255);

  stroke(0);

​

  ellipse(x0, y0, oDiam);

  ellipse(x1, y1, oDiam);

  ellipse(x2, y2, oDiam);

​

  let d0 = sqrt((mouseX - x0) ** 2 + (mouseY - y0) ** 2);

​

  if (d0 < oDiam / 2 + mDiam / 2) {

    fill(255, 0, 0);

  }

​

  let d1 = sqrt((mouseX - x1) ** 2 + (mouseY - y1) ** 2);

​

  if (d1 < oDiam / 2 + mDiam / 2) {

    fill(255, 0, 0);

  }

​

  let d2 = sqrt((mouseX - x2) ** 2 + (mouseY - y2) ** 2);

​

  if (d2 < oDiam / 2 + mDiam / 2) {

    fill(255, 0, 0);

  }

​

  ellipse(mouseX, mouseY, mDiam);

}

​