v0.58

From the beginning I had decided that in litecanvas there would be no functions to detect keyboard inputs (I would need a plugin/extension). But I decided to change my mind and now we have a function called iskeydown(key: string): boolean.

// basic usage
iskeydown('a') // check if the A key is pressed
iskeydown('arrowup') // check if the ARROW UP is pressed
iskeydown(' ') // check if SPACE is pressed

// also, you can check if "any" key is pressed
iskeydown('any')

// real world example
litecanvas()

function init() {
  posx = 0
}

function update (dt) {
  const speed = 200

  // move to right pressing ARROW RIGHT 
  if (iskeydown('arrowright')) {
    posx += speed * dt
  }

  // move to right pressing ARROW LEFT
  if (iskeydown('arrowleft')) {
    posx -= speed * dt
  }
}

function draw() {
  cls(0)
  circfill(posx, CENTERY, 50, 4)
}

Play this example