package snake

/** m09 input: from keyboard keys to game actions. */
object Input:

  // A pattern match on string literals is the lookup table; `|` lists the alternatives.
  def keyToAction(key: String): Option[Action] = key match
    case "ArrowUp" | "w" | "W"    => Some(Action.Turn(Direction.Up))
    case "ArrowDown" | "s" | "S"  => Some(Action.Turn(Direction.Down))
    case "ArrowLeft" | "a" | "A"  => Some(Action.Turn(Direction.Left))
    case "ArrowRight" | "d" | "D" => Some(Action.Turn(Direction.Right))
    case " "                      => Some(Action.TogglePause) // m10
    case "r" | "R"                => Some(Action.Restart) // m10
    case _                        => None