let pointPosY = [];

let numPoints = 10;

​

function setup() {

  createCanvas(500, 500);

  initArray();

}

​

function draw() {

  background(255);

  fill(0);

  drawPoints();

  drawLines();

}

​

function initArray() {

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

    pointPosX[i] = random(50, width - 50);

    pointPosY[i] = random(50, height - 50);

  }

}

​

function drawPoints() {

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

    circle(pointPosX[i], pointPosY[i], 10);

  }

}

​

function drawLines() {

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

    if(dist(mouseX,mouseY,pointPosX[i],pointPosY[i]) < 100){

      line(mouseX,mouseY,pointPosX[i],pointPosY[i]);

    }

  }

}

​

function mousePressed() {

  initArray();

}

​