TouchListener.js

function mouseDown(c, f) {
  c.addEventListener("mousedown", e => {
    f({x: e.pageX, y: e.pageY});
  });
  c.addEventListener("touchstart", e => {
    f({x: e.touches[0].pageX, y: e.touches[0].pageY});
  });
}
function mouseMove(c, f) {
  c.addEventListener("mousemove", e => {
    f({x: e.pageX, y: e.pageY});
  });
  c.addEventListener("touchmove", e => {
    e.preventDefault();
    f({x: e.touches[0].pageX, y: e.touches[0].pageY});
  });
}
function mouseUp(c, f) {
  c.addEventListener("mouseup", e => {
    f();
  });
  c.addEventListener("touchend", e => {
    f();
  });
}