createCanvas(400, 400);

} 

​

function draw() { 

  background('white');

  strokeWeight(10);

  line(200,20,200,40);

  line(200,20,300,20);

  line(300,20,300,300);

  line(180,300,400,300);

  strokeWeight(1);

  line(200,40,mouseX,mouseY);

  fill('white');

  strokeWeight(4);

  ellipse(mouseX,mouseY,20,20);

  line(mouseX,mouseY+10,mouseX,mouseY+50)

  line(mouseX,mouseY+13,mouseX+10+2*sin(mouseX),mouseY+45)

  line(mouseX,mouseY+13,mouseX-10+2*sin(mouseY),mouseY+45)

  line(mouseX,mouseY+50,mouseX+5,mouseY+95)

  line(mouseX,mouseY+50,mouseX-5,mouseY+95)

}