let mvmt = 3

let mvmtY = 5

​

function setup() {

  createCanvas(400, 400);

  pos = createVector(width/2, height/2)

}

​

function draw() {

  background(220, 100);

  strokeWeight(10)

  stroke("red")

  point(pos.x, pos.y)

  pos.x += mvmt

  pos.y += mvmtY

  //mvmtY += 20

  if ((pos.x >= width && mvmt > 0) || (pos.x <= 0 && mvmt < 0)) {

    mvmt *= -1

  }

  if ((pos.y >= height && mvmtY > 0) || (pos.y <= 0 && mvmtY < 0)) {

    mvmtY *= -1

  }

  stroke(0)

  point(mouseX, mouseY)

  if (abs(pos.x - mouseX) < 10 && abs(pos.y - mouseY) < 10) {

    mvmt *= -1

    mvmtY *= -1

  }

}