createCanvas(800, 500);

  background(0);

}

​

function draw() {

​

  if (mouseIsPressed) { //마우스 눌렸을때

    fill(100, 100, 225,100);

    noStroke();

    ellipse(mouseX, mouseY, mouseY/5);

  } 

  else if (keyCode == UP_ARROW) { // 위 화살표 눌렀을때 

    noStroke();

    fill(220, 220, 220, 30);

    ellipse(mouseX, mouseY, 50, 50);

    fill(210, 210, 20, 80);

    ellipse(mouseX + 15, mouseY - 15, 30, 30);

    ellipse(mouseX-15 , mouseY - 15, 10, 30);

  } 

  else {

    stroke(100, 150, 30); //아무것도 하지 않을때

    strokeWeight(mouseY/10);

    line(mouseX, mouseY, mouseX - 20, mouseY);

  }

​

}