#![enable(implicit_some)]
(
    /// Sleep X ms between every update
    update_delay_ms: 50,

    /// The room's size
    room: (
        width:  80,
        height: 24,
    ),

    paddle: (
        /// Paddles' size
        size: (2.0, 8.0),
        /// Paddles' speed
        speed: 20.0,
        /// Paddle AI settings
        ai: (
            /// If left paddle should be an AI
            left:  false,
            /// If right paddle should be an AI
            right: true,
            /// Positional padding before the paddle will start following a ball.
            /// This value is multiplied by the paddle's size.
            /// If the ball is further away from the paddle's position than
            ///   PADDLE_SIZE * FOLLOW_PADDING_PERCENT
            /// then the paddle will start moving towards the ball.
            /// So this value should stay at or below `0.5`, otherwise the paddle
            /// won't move close enough to the ball.
            /// The smaller the padding, the closer the paddle will try to move towards the ball.
            follow_padding_percent: 0.4,
        ),
    ),

    ball: (
        /// The ball's size
        size: (4.0, 2.0),
        /// The ball's initial velocity
        velocity: (20.0, 2.0),
        /// Linearly increase velocity by this amount on each paddle hit
        velocity_increase: (2.0, 2.0),
        /// Time in ms before the ball starts moving after it is spawned
        spawn_delay_ms: 1000,
        /// Total amount of balls in a game
        balls_amount: 1,
        /// Time in ms before a new ball is spawned, if current ball count is less than `balls_amount`
        spawn_next_ball_in_ms: 5000,
        /// In which directions (x,y) the ball should start moving when spawned.
        /// Valid values for X direction are:
        ///   `Left`, `Right`, `Random`
        /// Valid values for Y direction are:
        ///   `None`, `Up`, `Down`, `Random`, `RandomUpOrDown`
        /// `Random` will randomly pick one of the other available values.
        /// Y's `RandomUpOrDown` value will choose either `Up` or `Down`, but never `None`.
        /// Note that the `Random` value only works if the game is built with the `random` feature,
        /// will panic otherwise.
        spawn_direction: (Random, RandomUpOrDown),
    ),

    score: (
        /// The position, where the left paddle's score should be displayed,
        /// relative to the room size. The right paddle's score's position will be derived.
        /// Values range from `0.0` to `1.0` (both inclusive).
        position_relative: (0.4, 0.2),
        /// Should everything be reset, when somebody scores?
        /// Resetting means: Removing all balls and starting with one again,
        /// and moving all paddles to their initial positions.
        reset_on_score: true,
    ),

    /// Keybindings
    /// Can either be a single printable character,
    /// or can include modifiers "Ctrl+X" and "Alt+X",
    /// where "X" would be any printable character.
    /// Some additional valid keys are "Esc", "Up", "Down", "Left", "Right".
    /// For a full list of valid keys, see
    /// https://docs.rs/crossterm/0.11.1/crossterm/enum.KeyEvent.html
    bindings: (
        quit: ["q", "Ctrl+c", "Esc"],
        paddle_left: (
            up:   ["w", "k"],
            down: ["s", "j"],
        ),
        paddle_right: (
            up:   ["Up", "k"],
            down: ["Down", "j"],
        ),
    ),

    /// Visual representation of the game; which characters to use for which objects.
    /// All fields in the `style` sections may be ommited.
    /// The game must be built with the `style` feature for the style fields to work.
    /// Note that styles may slow-down the rendering of the game.
    /// For a list of available `fg_color` and `bg_color` values, see here:
    ///   https://docs.rs/crossterm/0.12.1/crossterm/style/enum.Color.html#variants
    /// For a list of available `attrs` values, see here:
    ///   https://docs.rs/crossterm/0.12.1/crossterm/enum.Attribute.html#variants
    chars: (
        empty: (
            character: ' ',
            // character: '·',
            // style: (
            //     attrs: [Dim],
            // ),
        ),
        paddle: (
            character: '#',
            style: (
                fg_color: Blue,
                bg_color: Blue,
            ),
        ),
        ball: (
            character: 'O',
            style: (
                fg_color: Red,
                bg_color: Red,
            ),
        ),
        score: (
            style: (
                fg_color: Green,
                attrs: [Bold],
            ),
        ),
        room: (
            border_horizontal: (
                character: '—',
                style: (
                    fg_color: DarkGrey,
                    bg_color: DarkGrey,
                ),
            ),
            border_vertical: (
                character: '|',
                style: (
                    fg_color: DarkGrey,
                    bg_color: DarkGrey,
                ),
            ),
            border_corner: (
                character: '+',
                style: (
                    fg_color: DarkGrey,
                    bg_color: DarkGrey,
                ),
            ),
        ),
    ),
)