KorGE setup for super smooth player movement by keys or mouse-click

KorGE-Player-Movement.kt

private var destination: Point = player.pos.copy()
private val playerSpeed = 6.0
private val step = 20

init {
  addUpdater {
      handeKeyboardControls()
  }
  addFixedUpdater(25.milliseconds) {
      if (destination.distanceTo(player.pos) > playerSpeed) {
          moveToDestination()
      }
  }
  onClick {
    destination.copyFrom(it.currentPosStage)
  }
}
        

private fun handeKeyboardControls() {
    if(anyMoveKeyIsPressed()){
        resetDestination()
    }
    if (Key.UP.isPressed() || Key.W.isPressed()) {
        moveUp()
    }
    if (Key.DOWN.isPressed() || Key.S.isPressed()) {
        moveDown()
    }
    if (Key.LEFT.isPressed() || Key.A.isPressed()) {
        moveLeft()
    }
    if (Key.RIGHT.isPressed() || Key.D.isPressed()) {
        moveRight()
    }
}

fun anyMoveKeyIsPressed() = (arrowKeys() + wasdKeys()).any { it.isPressed() }

private fun arrowKeys() = listOf(Key.UP, Key.DOWN, Key.LEFT, Key.RIGHT)
private fun wasdKeys() = listOf(Key.W, Key.A, Key.S, Key.S)

private fun Key.isPressed() = stage?.input?.keys?.get(this) ?: false

private fun moveLeft() {
  destination.x -= step
}

private fun moveRight() {
  destination.x += step
}

private fun moveDown() {
  destination.y += step
}

private fun moveUp() {
  destination.y -= step
}

private fun resetDestination() {
  destination.copyFrom(player.pos)
}