function setup() {

  createCanvas(windowWidth, windowHeight);

  stroke(0); // 黒く塗りつぶす

  strokeWeight(20); // 幅を20に

  background(200);

}

​

function draw() {

}

​

function touchMoved() {

　line(pmouseX, pmouseY, mouseX, mouseY);

  return false;

}

​