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956 lines
32 KiB
Rust
956 lines
32 KiB
Rust
use bevy::app::AppExit;
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use bevy::utils::HashSet;
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use crate::audio::AudioEvent;
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use crate::prelude::*;
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pub(crate) struct GamePlugin;
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impl Plugin for GamePlugin {
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fn build(&self, app: &mut App) {
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app.add_event::<Move>()
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.add_event::<Selection>()
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.add_state::<TurnState>()
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.insert_resource(Score { ..default() })
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.add_systems(Startup, setup_board)
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.add_systems(OnEnter(GameState::Play), hide_valid_moves)
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.add_systems(
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Update,
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manage_state_entities::<GameState>().run_if(state_changed::<GameState>()),
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)
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.add_systems(
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Update,
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(
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update_board
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.run_if(on_event::<Move>())
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.after(handle_selection),
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set_side.run_if(any_component_changed::<BoardIndex>()),
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cancel_place.run_if(just_pressed(MouseButton::Right)),
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handle_selection.run_if(on_event::<Selection>()),
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show_valid_moves.run_if(any_component_added::<Selected>()),
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hide_valid_moves.run_if(any_component_removed::<Selected>()),
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manage_score.run_if(any_component_added::<Captured>()),
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check_endgame.run_if(resource_changed::<Board>()),
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reset_game.run_if(just_pressed(KeyCode::R)),
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),
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)
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.add_systems(OnEnter(GameState::Endgame), set_endgame.after(manage_score))
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.add_systems(OnExit(GameState::Endgame), clear_endgame)
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.add_systems(
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PreUpdate,
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asserts::<display3d::Display3d>
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.run_if(in_state(DisplayState::Display3d))
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.run_if(in_state(GameState::Play)),
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)
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.add_systems(
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PostUpdate,
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(debug_board.run_if(resource_exists::<debug::DebugEnabled>()),),
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)
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.add_systems(OnEnter(GameState::Restart), handle_restart)
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.add_systems(OnEnter(GameState::Quit), handle_quit);
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}
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}
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#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Default, States)]
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pub(crate) struct TurnState(pub Side);
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impl std::ops::Not for TurnState {
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type Output = Self;
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fn not(self) -> Self::Output {
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let TurnState(side) = self;
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TurnState(!side)
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}
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}
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#[derive(Debug, Component, Clone, PartialEq, Copy, Hash)]
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pub(crate) enum Piece {
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Pawn,
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Drone,
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Queen,
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}
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#[derive(Debug, Component, Clone, PartialEq)]
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pub(crate) enum Tile {
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Dark,
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Light,
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}
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pub(crate) fn tiles() -> impl Iterator<Item = (BoardIndex, Tile)> {
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(0..32).map(|i| {
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let x = i % 8;
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let y = i / 8;
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let s = (x % 2) ^ (y % 2);
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let index = BoardIndex { x, y };
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let tile = if s == 0 { Tile::Dark } else { Tile::Light };
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(index, tile)
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})
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}
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#[derive(Debug, Component)]
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pub(crate) struct BoardComponent;
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#[derive(Debug, Component)]
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pub(crate) struct ValidMove;
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#[derive(Debug, Component)]
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pub(crate) struct Captured;
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// manually for the type.
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impl std::fmt::Display for Piece {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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match self {
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Piece::Queen => write!(f, "@"),
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Piece::Drone => write!(f, "^"),
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Piece::Pawn => write!(f, "*"),
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}
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}
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}
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#[derive(Debug, PartialEq)]
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pub(crate) enum GameError {
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NullMove,
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InvalidIndex,
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InvalidMove,
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}
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/// Tracks the score of each side of the game
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#[derive(Debug, Resource, Default)]
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pub(crate) struct Score {
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a: usize,
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b: usize,
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captures_a: usize,
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captures_b: usize,
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}
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impl Score {
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fn increment(&mut self, side: Side, piece: Piece) {
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let i = match piece {
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Piece::Queen => 3,
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Piece::Drone => 2,
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Piece::Pawn => 1,
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};
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match side {
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Side::A => {
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self.captures_a += 1;
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self.a += i;
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}
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Side::B => {
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self.captures_b += 1;
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self.b += i;
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}
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}
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}
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pub(crate) fn _get(&self, side: Side) -> usize {
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match side {
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Side::A => self.a,
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Side::B => self.b,
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}
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}
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pub(crate) fn captures(&self, side: Side) -> usize {
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match side {
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Side::A => self.captures_a,
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Side::B => self.captures_b,
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}
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}
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}
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/// The board is setup like this:
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/// ```text
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/// 0 1 2 3 4 5 6 7
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/// +--+--+--+-----+--+--+--+
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/// a | | | | l | d| Q| Q|
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/// +--+--+--+--l--+--+--+--+
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/// b |d |p |p | l | p| d| Q|
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/// +--+--+--+--l--+--+--+--+
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/// c |Q |d |p | l | p| p| d|
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/// +--+--+--+--l--+--+--+--+
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/// d |Q |Q |d | l | | | |
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/// +--+--+--+-----+--+--+--+
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/// ````
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#[derive(Debug, Resource)]
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pub(crate) struct Board {
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inner: Vec<Vec<Option<Piece>>>,
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moves: Vec<Move>,
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}
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#[derive(Debug, Default, Event, Clone)]
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pub(crate) struct Move {
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pub epoch: usize,
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pub from: BoardIndex,
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pub to: Option<BoardIndex>,
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}
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/// Enum for the Capture event flow
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#[derive(Debug, Clone, Copy, Resource)]
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pub(crate) enum CaptureFlow {
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// Run the "fade out" animation
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FadeOut(Entity),
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// Put the captured piece next to the board
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Store(Entity),
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// Run the "fade in" animation
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FadeIn(Entity),
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}
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impl CaptureFlow {
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/// The capture flow so we can move from one "capture flow state" to the next
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/// Fade out, then store, then fade in
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pub(crate) fn next(&self) -> Option<Self> {
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match self {
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Self::FadeOut(e) => Some(Self::Store(e.clone())),
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Self::Store(e) => Some(Self::FadeIn(e.clone())),
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Self::FadeIn(_) => None,
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}
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}
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}
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#[derive(Debug, Component, PartialEq, Clone, Default, Copy, Eq, Hash)]
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pub(crate) struct BoardIndex {
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pub x: usize,
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pub y: usize,
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}
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#[derive(Debug, Component, PartialEq, Clone, Copy, Eq, Hash, Default)]
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pub(crate) enum Side {
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A,
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// HACK: Opening animation starts on B side
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#[default]
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B,
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}
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impl std::ops::Not for Side {
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type Output = Self;
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fn not(self) -> Self::Output {
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match self {
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Side::A => Side::B,
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Side::B => Side::A,
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}
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}
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}
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impl Board {
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/// Returns the piece at the given location
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pub(crate) fn at(&self, BoardIndex { x, y }: BoardIndex) -> Option<&Piece> {
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self.inner[y][x].as_ref()
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}
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fn new() -> Board {
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use Piece::*;
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Board {
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moves: vec![],
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inner: vec![
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vec![
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Some(Queen),
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Some(Queen),
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Some(Drone),
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None,
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None,
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None,
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None,
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None,
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],
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vec![
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Some(Queen),
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Some(Drone),
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Some(Pawn),
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None,
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None,
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Some(Pawn),
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Some(Pawn),
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Some(Drone),
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],
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vec![
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Some(Drone),
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Some(Pawn),
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Some(Pawn),
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None,
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None,
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Some(Pawn),
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Some(Drone),
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Some(Queen),
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],
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vec![
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None,
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None,
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None,
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None,
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None,
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Some(Drone),
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Some(Queen),
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Some(Queen),
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],
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],
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}
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}
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/// Show all pieces on one side of the board
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/// OPTIMIZE: This is only used to tell if a side is empty, so it is more work than we need to do.
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pub(crate) fn on(&self, side: Side) -> Vec<(&Piece, BoardIndex)> {
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match side {
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Side::A => {
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// X: 0..3, Y: 0..3
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(0..=3)
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.flat_map(|x| {
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(0..=3).map(move |y| {
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self.at(BoardIndex { x, y })
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.map(|p| (p, BoardIndex { x, y }))
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})
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})
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.filter_map(|r| r)
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.collect()
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}
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Side::B => {
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// X: 4..7, Y: 0..3
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(4..=7)
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.flat_map(|x| {
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(0..=3).map(move |y| {
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self.at(BoardIndex { x, y })
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.map(|p| (p, BoardIndex { x, y }))
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})
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})
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.filter_map(|r| r)
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.collect()
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}
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}
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}
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/// Returns a list of all pieces on the board with their location
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pub(crate) fn pieces(&self) -> Vec<(BoardIndex, Piece)> {
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self.inner
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.iter()
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.enumerate()
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.flat_map(|(y, nested)| {
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nested.iter().enumerate().filter_map(move |(x, p)| {
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p.as_ref().map(|val| (BoardIndex { x, y }, val.clone()))
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})
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})
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.collect()
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}
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/// Moves a piece from -> to
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pub(crate) fn move_piece(
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&mut self,
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from: BoardIndex,
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to: BoardIndex,
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) -> Result<Vec<Move>, GameError> {
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if from == to {
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Err(GameError::NullMove)
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} else {
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match self.at(from.clone()) {
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Some(from_piece) => {
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// Check if this is a valid move for this piece
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if self.valid_moves(from).contains(&to) {
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// The current epoch is the last epoch + 1
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let epoch = self.current_epoch();
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// Local moves vec we can return
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let mut moves = vec![];
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// If the position we are moving to is occupied, capture the removal in the ledger
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if self.inner[to.y][to.x].is_some() {
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moves.push(Move {
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epoch,
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from: to.clone(),
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to: None,
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});
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}
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// Capture the intened move in the moves ledger
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moves.push(Move {
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epoch,
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from: from.clone(),
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to: Some(to.clone()),
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});
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self.inner[to.y][to.x] = Some(*from_piece);
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self.inner[from.y][from.x] = None;
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self.moves.extend(moves.clone());
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Ok(moves)
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} else {
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Err(GameError::InvalidMove)
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}
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}
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None => Err(GameError::NullMove),
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}
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}
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}
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/// Returns the Side of a piece
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pub(crate) fn side(BoardIndex { x, .. }: BoardIndex) -> Result<Side, GameError> {
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match x {
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0..=3 => Ok(Side::A),
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4..=7 => Ok(Side::B),
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_ => Err(GameError::InvalidIndex),
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}
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}
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/// Returns the possible moves the piece at this tile can make.
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/// TODO: Implement "no jumping" over pieces
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pub(crate) fn valid_moves(&self, current_board_index: BoardIndex) -> HashSet<BoardIndex> {
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let BoardIndex { x, y } = current_board_index;
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let f = |(a, b): (Option<usize>, Option<usize>)| {
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if let (Some(this_x), Some(this_y)) = (a, b) {
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// This has a valid x position
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let valid_x = (0..=7).contains(&this_x);
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if valid_x {
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// It has a valid y position
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let valid_y = (0..=3).contains(&this_y);
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if valid_y {
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// The checked board index
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let this_board_index = BoardIndex {
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x: this_x,
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y: this_y,
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};
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// Only propose tiles that are empty or capture a piece on the other side
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let valid_capture = {
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match self.at(this_board_index) {
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Some(_) => {
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let same_side = Board::side(current_board_index);
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Board::side(this_board_index) != same_side
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}
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None => true,
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}
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};
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if valid_capture {
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// You cannot move a piece from A to B and then back to A when it was just moved from SideA->SideB
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// Move rejection is not allowed
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let rejection = {
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if let Some(Move {
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from: last_from,
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to: Some(last_to),
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..
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}) = self.moves.last()
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{
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// TODO: I think this is more logic than we need to express
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// the sentiment...
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*last_from == this_board_index
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&& *last_to == current_board_index
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&& Board::side(this_board_index)
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!= Board::side(current_board_index)
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} else {
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false
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}
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};
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// If all tests pass, this is a valid move
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(!rejection).then_some(this_board_index)
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} else {
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None
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}
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} else {
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None
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}
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} else {
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None
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}
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} else {
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None
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}
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};
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match self.at(BoardIndex { x, y }) {
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// One space in any diagonal
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Some(Piece::Pawn) => std::iter::empty()
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.chain(
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(-1..=1)
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.zip(-1..=1)
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.map(move |(a, b)| (x.checked_add_signed(a), y.checked_add_signed(b))),
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)
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.chain(
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(-1..=1)
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.zip((-1..=1).rev())
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.map(move |(a, b)| (x.checked_add_signed(a), y.checked_add_signed(b))),
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)
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.filter_map(f)
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.collect(),
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// One or two spaces in either horizontal
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Some(Piece::Drone) => std::iter::empty()
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.chain((-2..=2).map(|i| (x.checked_add_signed(i), Some(y))))
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.chain((-2..=2).map(|i| (Some(x), y.checked_add_signed(i))))
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.filter_map(f)
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.collect(),
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// Any distance in any straight line
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Some(Piece::Queen) => std::iter::empty()
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.chain((-7..=7).map(|i| (x.checked_add_signed(i), Some(y))))
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.chain((-3..=3).map(|i| (Some(x), y.checked_add_signed(i))))
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.chain(
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(-3..=3)
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.zip(-3..=3)
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.map(move |(a, b)| (x.checked_add_signed(a), y.checked_add_signed(b))),
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)
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.chain(
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(-3..=3)
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.zip((-3..=3).rev())
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.map(move |(a, b)| (x.checked_add_signed(a), y.checked_add_signed(b))),
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)
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.filter_map(f)
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.collect(),
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None => std::iter::empty().collect(),
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}
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}
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pub(crate) fn current_epoch(&self) -> usize {
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self.moves.last().unwrap_or(&Move { ..default() }).epoch + 1
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}
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}
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impl std::fmt::Display for Board {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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self.inner.iter().rev().for_each(|row| {
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let _ = write!(f, "+--+--+--+--+--+--+--+--+\n");
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let _ = write!(f, "|");
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row.iter().for_each(|piece| {
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let _ = match piece {
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Some(p) => write!(f, "{} |", p),
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None => write!(f, " |"),
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};
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});
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let _ = write!(f, "\n");
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});
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let _ = write!(f, "+--+--+--+--+--+--+--+--+");
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Ok(())
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}
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}
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/// Marker component for currently selected entities
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#[derive(Debug, Default, Component)]
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pub(crate) struct Selected;
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/// Marker component for selectable entities
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#[derive(Debug, Default, Component)]
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pub(crate) struct Selectable;
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|
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/// Event for selecting board indexes for Moves
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#[derive(Debug, Default, Event, Clone)]
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pub(crate) struct Selection(pub BoardIndex);
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fn setup_board(mut commands: Commands) {
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commands.insert_resource(Board::new());
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}
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fn debug_board(board: Res<Board>, mut debug_info: ResMut<debug::DebugInfo>) {
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debug_info.set("board".into(), format!("\n{}", *board));
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}
|
|
|
|
/// Update this method to use a diff between the board and the state of the 2d/3d worlds
|
|
pub(crate) fn update_board(
|
|
mut audio_events: EventWriter<AudioEvent>,
|
|
mut events: EventReader<Move>,
|
|
mut pieces: Query<(Entity, &mut BoardIndex), With<Piece>>,
|
|
selected: Query<Entity, With<Selected>>,
|
|
mut commands: Commands,
|
|
mut played: Local<bool>,
|
|
curr_state: Res<State<TurnState>>,
|
|
mut next_state: ResMut<NextState<TurnState>>,
|
|
) {
|
|
events.read().for_each(|Move { from, to, .. }| {
|
|
pieces.iter_mut().for_each(|(entity, mut index)| {
|
|
if *index == *from {
|
|
match to {
|
|
Some(to_idx) => {
|
|
info!("Moving piece {:?} {:?} -> {:?}", entity, from, to_idx);
|
|
*index = to_idx.clone();
|
|
if !(*played) {
|
|
audio_events.send(audio::AudioEvent::PutDown);
|
|
audio_events.send(audio::AudioEvent::StopIdle);
|
|
*played = true;
|
|
if *from != *to_idx {
|
|
let ns = !*curr_state.get();
|
|
info!("Piece moved, switching sides: {:?}", ns);
|
|
next_state.set(ns);
|
|
}
|
|
}
|
|
}
|
|
None => {
|
|
info!("Capturing piece {:?}", entity);
|
|
commands
|
|
.entity(entity)
|
|
.remove::<BoardIndex>()
|
|
.insert(Captured);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
selected.iter().for_each(|entity| {
|
|
debug!("De-selecting selected piece {:?}", entity);
|
|
commands.entity(entity).remove::<Selected>();
|
|
});
|
|
});
|
|
*played = false;
|
|
}
|
|
|
|
#[derive(Debug, Component)]
|
|
struct Endgame;
|
|
|
|
fn check_endgame(board: Res<Board>, mut next_state: ResMut<NextState<GameState>>) {
|
|
if board.on(Side::A).is_empty() || board.on(Side::B).is_empty() {
|
|
warn!("The game is over!");
|
|
next_state.set(GameState::Endgame);
|
|
}
|
|
}
|
|
|
|
fn set_endgame(
|
|
score: Res<Score>,
|
|
mut commands: Commands,
|
|
tweaks_file: Res<tweak::GameTweaks>,
|
|
tweaks: Res<Assets<tweak::Tweaks>>,
|
|
) {
|
|
let tweak = tweaks.get(tweaks_file.handle.clone()).expect("Load tweaks");
|
|
let button_handle = tweak.get_handle::<Image>("buttons_image_resting").unwrap();
|
|
let font_handle = tweak.get_handle::<Font>("buttons_font").unwrap();
|
|
|
|
commands
|
|
.spawn((
|
|
Endgame,
|
|
NodeBundle {
|
|
style: Style {
|
|
width: Val::Percent(100.0),
|
|
height: Val::Percent(100.0),
|
|
justify_content: JustifyContent::Center,
|
|
align_items: AlignItems::Center,
|
|
flex_direction: FlexDirection::Column,
|
|
position_type: PositionType::Absolute,
|
|
..default()
|
|
},
|
|
background_color: Color::NONE.into(),
|
|
visibility: Visibility::Inherited,
|
|
..default()
|
|
},
|
|
))
|
|
.with_children(|parent| {
|
|
parent.spawn(TextBundle::from_section(
|
|
"S C O R E",
|
|
TextStyle {
|
|
font_size: 48.0,
|
|
color: Color::ORANGE_RED,
|
|
..default()
|
|
},
|
|
));
|
|
parent.spawn(TextBundle::from_section(
|
|
format!("BLUE {}", score.b),
|
|
TextStyle {
|
|
font_size: 32.0,
|
|
color: Color::BLUE,
|
|
..default()
|
|
},
|
|
));
|
|
parent.spawn(TextBundle::from_section(
|
|
format!("RED {}", score.a),
|
|
TextStyle {
|
|
font_size: 32.0,
|
|
color: Color::RED,
|
|
..default()
|
|
},
|
|
));
|
|
|
|
parent
|
|
.spawn((
|
|
Endgame,
|
|
NodeBundle {
|
|
style: Style {
|
|
flex_direction: FlexDirection::Row,
|
|
..default()
|
|
},
|
|
..default()
|
|
},
|
|
))
|
|
.with_children(|parent| {
|
|
parent
|
|
.spawn((
|
|
menu::ButtonAction(GameState::Restart),
|
|
menu::ButtonAction(menu::MenuState::Off),
|
|
ButtonBundle {
|
|
style: Style {
|
|
padding: UiRect::all(Val::Px(5.0)),
|
|
margin: UiRect::all(Val::Px(5.0)),
|
|
..default()
|
|
},
|
|
image: UiImage {
|
|
texture: button_handle.clone(),
|
|
..default()
|
|
},
|
|
..default()
|
|
},
|
|
))
|
|
.with_children(|parent| {
|
|
parent.spawn(TextBundle {
|
|
text: Text {
|
|
sections: vec![TextSection {
|
|
value: "N e w G a m e".into(),
|
|
style: TextStyle {
|
|
color: Color::WHITE,
|
|
font_size: 16.0,
|
|
font: font_handle.clone(),
|
|
},
|
|
}],
|
|
..default()
|
|
},
|
|
style: Style {
|
|
margin: UiRect::all(Val::Px(20.0)),
|
|
..default()
|
|
},
|
|
..default()
|
|
});
|
|
});
|
|
|
|
// Quit button
|
|
parent
|
|
.spawn((
|
|
menu::ButtonAction(menu::MenuState::Off),
|
|
menu::ButtonAction(GameState::Quit),
|
|
ButtonBundle {
|
|
style: Style {
|
|
padding: UiRect::all(Val::Px(5.0)),
|
|
margin: UiRect::all(Val::Px(5.0)),
|
|
..default()
|
|
},
|
|
image: UiImage {
|
|
texture: button_handle.clone(),
|
|
..default()
|
|
},
|
|
..default()
|
|
},
|
|
))
|
|
.with_children(|parent| {
|
|
parent.spawn(TextBundle {
|
|
text: Text {
|
|
sections: vec![TextSection {
|
|
value: "Q u i t".into(),
|
|
style: TextStyle {
|
|
color: Color::WHITE,
|
|
font_size: 16.0,
|
|
font: font_handle.clone(),
|
|
},
|
|
}],
|
|
..default()
|
|
},
|
|
style: Style {
|
|
margin: UiRect::all(Val::Px(20.0)),
|
|
..default()
|
|
},
|
|
..default()
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
fn clear_endgame(query: Query<Entity, With<Endgame>>, mut commands: Commands) {
|
|
query.iter().for_each(|e| {
|
|
commands.entity(e).despawn_recursive();
|
|
})
|
|
}
|
|
|
|
/// We only track 3D (hack, for now) to prevent duplicates
|
|
/// TODO: We can calculate this declaratively:
|
|
/// * All pieces without a BoardIndex are "captured"
|
|
/// * All captured pieces have their captured side preserved
|
|
/// We can iterate over these pieces and calculate the score on the fly
|
|
fn manage_score(
|
|
events: Query<(&Side, &Piece), (Added<Captured>, With<display3d::Display3d>)>,
|
|
mut debug_info: ResMut<debug::DebugInfo>,
|
|
mut score: ResMut<Score>,
|
|
) {
|
|
events.iter().for_each(|(side, piece)| {
|
|
score.increment(!*side, *piece);
|
|
debug_info.set("score".into(), format!("A:{}|B:{}", score.a, score.b));
|
|
});
|
|
}
|
|
|
|
pub(crate) fn set_side(
|
|
mut events: Query<(&mut Side, &BoardIndex), Or<(Changed<BoardIndex>, Added<BoardIndex>)>>,
|
|
) {
|
|
events
|
|
.iter_mut()
|
|
.for_each(|(mut side, idx)| match Board::side(*idx) {
|
|
Ok(s) => {
|
|
debug!("Set side event {:?} {:?} -> {:?}", idx, side, s);
|
|
if *side != s {
|
|
*side = s
|
|
}
|
|
}
|
|
Err(e) => warn!("{:?}", e),
|
|
});
|
|
}
|
|
|
|
// TODO: Handle 3d Pickup (Not showing hover animation, but still selected?)
|
|
// TODO: Handle cancel move (currently 2d just drops it in place)
|
|
fn handle_selection(
|
|
mut selections: EventReader<Selection>,
|
|
mut move_events: EventWriter<Move>,
|
|
selected: Query<(Entity, &BoardIndex), (With<Selected>, With<Piece>)>,
|
|
pieces: Query<(Entity, &BoardIndex), (With<Selectable>, Without<Selected>, With<Piece>)>,
|
|
mut board: ResMut<Board>,
|
|
mut commands: Commands,
|
|
mut audio_event: EventWriter<AudioEvent>,
|
|
mut done: Local<bool>, // Tracks if moves/audio submitted already even if multiple pieces (2d/3d) are moved.
|
|
mut latest: Local<Option<BoardIndex>>, // Tracks the last one worked on
|
|
) {
|
|
selections.read().for_each(|Selection(index)| {
|
|
// Skip indexes already processed
|
|
if Some(*index) != *latest {
|
|
// Set the latest index to the current index
|
|
*latest = Some(*index);
|
|
// Reset the "done" marker
|
|
*done = false;
|
|
|
|
// There are no currently selected entities
|
|
// Mark the piece at this index as selected
|
|
if selected.is_empty() {
|
|
pieces
|
|
.iter()
|
|
.filter(|(_, this_index)| *this_index == index)
|
|
.for_each(|(piece, piece_index)| {
|
|
info!("Selecting {:?} at {:?}", piece, piece_index);
|
|
commands.entity(piece).insert(Selected);
|
|
if !(*done) {
|
|
audio_event.send(audio::AudioEvent::PickUp);
|
|
audio_event.send(AudioEvent::Idle);
|
|
*done = true;
|
|
}
|
|
});
|
|
}
|
|
// There is a currently selected entity, so submit moves
|
|
else {
|
|
assert!(
|
|
selected.iter().len() <= 2,
|
|
"There are too many pieces selected!"
|
|
);
|
|
selected.iter().for_each(|(_, current_index)| {
|
|
match board.move_piece(*current_index, *index) {
|
|
Ok(moves) => {
|
|
// De-select the piece
|
|
info!("Applying moves {:?}", moves);
|
|
if !(*done) {
|
|
moves.iter().for_each(|m| move_events.send(m.clone()));
|
|
*done = true;
|
|
}
|
|
}
|
|
Err(GameError::NullMove) => warn!("Null move!"),
|
|
Err(GameError::InvalidIndex) | Err(GameError::InvalidMove) => {
|
|
warn!("Invalid index/move!");
|
|
if !(*done) {
|
|
audio_event.send(AudioEvent::Invalid);
|
|
*done = true;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
});
|
|
*done = false;
|
|
*latest = None;
|
|
}
|
|
|
|
/// Triggered when right-mouse-button clicked
|
|
fn cancel_place(current: Query<&BoardIndex, With<Selected>>, mut events: EventWriter<Move>) {
|
|
current.iter().for_each(|board_index| {
|
|
info!("De-selecting piece at {:?}", board_index);
|
|
events.send(Move {
|
|
from: board_index.clone(),
|
|
to: Some(board_index.clone()),
|
|
..default()
|
|
});
|
|
});
|
|
}
|
|
|
|
/// Panics if more than two pieces are selected at a time
|
|
fn asserts<T: Component>(
|
|
selected_pieces: Query<Entity, (With<Piece>, With<T>, With<Selected>)>,
|
|
selected_tiles: Query<Entity, (With<Tile>, With<T>, With<Selected>)>,
|
|
cameras: Query<Entity, (With<Camera>, With<T>)>,
|
|
) {
|
|
if selected_pieces.iter().len() > 2 {
|
|
selected_pieces.iter().for_each(|e| {
|
|
info!("Too many pieces selected, one of which is: {:?}", e);
|
|
});
|
|
panic!(
|
|
"More than two pieces selected {:?}",
|
|
selected_pieces.iter().len()
|
|
);
|
|
}
|
|
if selected_tiles.iter().len() > 2 {
|
|
panic!(
|
|
"More than two tiles selected {:?}",
|
|
selected_tiles.iter().len()
|
|
);
|
|
}
|
|
if cameras.iter().len() != 1 {
|
|
panic!(
|
|
"There should be 1 cameras in this state, but there is only {}",
|
|
cameras.iter().len()
|
|
);
|
|
}
|
|
}
|
|
|
|
/// Spawn "Valid move" indicators when a piece is selected
|
|
/// Another system registers these new entities and associates the correct models and plays animations.
|
|
fn show_valid_moves(
|
|
events: Query<&BoardIndex, (With<Piece>, Added<Selected>)>,
|
|
board: Res<Board>,
|
|
mut indicators: Query<(&BoardIndex, &mut Visibility), With<ValidMove>>,
|
|
) {
|
|
// When a piece is selected
|
|
events.iter().for_each(|idx| {
|
|
// Iterate over all ValidMove entities
|
|
// For each one with a ValidMove index, make it visible
|
|
board.valid_moves(*idx).iter().for_each(|idx| {
|
|
indicators.iter_mut().for_each(|(i, mut vis)| {
|
|
if i == idx {
|
|
*vis = Visibility::Inherited;
|
|
}
|
|
});
|
|
})
|
|
});
|
|
}
|
|
|
|
/// Hide "Valid Move" indicators when a piece is de-selected
|
|
fn hide_valid_moves(mut indicators: Query<&mut Visibility, With<ValidMove>>) {
|
|
indicators.iter_mut().for_each(|mut visibility| {
|
|
*visibility = Visibility::Hidden;
|
|
});
|
|
}
|
|
|
|
// Resets the board to the "stock" setup
|
|
// Somewhat conflicts with board initialization!
|
|
fn reset_game(
|
|
pieces: Query<Entity, With<Piece>>,
|
|
mut board: ResMut<Board>,
|
|
mut score: ResMut<Score>,
|
|
mut commands: Commands,
|
|
) {
|
|
// Setup the board
|
|
*board = Board::new();
|
|
|
|
// Reset the score
|
|
*score = Score { ..default() };
|
|
|
|
// Move all pieces to their correct spots
|
|
pieces
|
|
.iter()
|
|
.zip(board.pieces().iter())
|
|
.for_each(|(e, (i, p))| {
|
|
commands
|
|
.entity(e)
|
|
.insert((i.clone(), p.clone()))
|
|
.remove::<Captured>();
|
|
});
|
|
}
|
|
|
|
/// Very simple system to handle the "Quit" state (shutdown the game)
|
|
fn handle_quit(mut app_exit_events: EventWriter<AppExit>) {
|
|
app_exit_events.send(AppExit);
|
|
}
|
|
|
|
fn handle_restart() {
|
|
todo!("Restart is not implemented yet!");
|
|
}
|