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|
//! A simplified implementation of the classic game "Breakout".
//! => Original example by Bevy, modified for Bevy Quinnet to add a 2 players versus mode.
use bevy::{ecs::schedule::ShouldRun, prelude::*, time::FixedTimestep};
use bevy_quinnet::{
client::QuinnetClientPlugin,
server::{QuinnetServerPlugin, Server},
};
use client::{NetworkMapping, BACKGROUND_COLOR};
mod client;
mod protocol;
mod server;
const SERVER_HOST: &str = "127.0.0.1";
const SERVER_PORT: u16 = 6000;
// Defines the amount of time that should elapse between each physics step.
const TIME_STEP: f32 = 1.0 / 60.0;
// These constants are defined in `Transform` units.
// Using the default 2D camera they correspond 1:1 with screen pixels.
const PADDLE_SIZE: Vec3 = Vec3::new(120.0, 20.0, 0.0);
const GAP_BETWEEN_PADDLE_AND_FLOOR: f32 = 60.0;
const PADDLE_SPEED: f32 = 500.0;
// How close can the paddle get to the wall
const PADDLE_PADDING: f32 = 10.0;
const BALL_SIZE: Vec3 = Vec3::new(30.0, 30.0, 0.0);
const BALL_SPEED: f32 = 400.0;
const WALL_THICKNESS: f32 = 10.0;
// x coordinates
const LEFT_WALL: f32 = -450.;
const RIGHT_WALL: f32 = 450.;
// y coordinates
const BOTTOM_WALL: f32 = -300.;
const TOP_WALL: f32 = 300.;
const BRICK_SIZE: Vec2 = Vec2::new(100., 30.);
// These values are exact
const GAP_BETWEEN_PADDLE_AND_BRICKS: f32 = 140.0;
const GAP_BETWEEN_BRICKS: f32 = 5.0;
// These values are lower bounds, as the number of bricks is computed
const GAP_BETWEEN_BRICKS_AND_SIDES: f32 = 20.0;
#[derive(Clone, Eq, PartialEq, Debug, Hash)]
enum GameState {
MainMenu,
HostingLobby,
JoiningLobby,
Running,
}
#[derive(Component, Deref, DerefMut)]
struct Velocity(Vec2);
#[derive(Default)]
struct CollisionEvent;
#[derive(Component)]
struct Score;
struct CollisionSound(Handle<AudioSource>);
pub type BrickId = u64;
/// Which side of the arena is this wall located on?
enum WallLocation {
Left,
Right,
Bottom,
Top,
}
impl WallLocation {
fn position(&self) -> Vec2 {
match self {
WallLocation::Left => Vec2::new(LEFT_WALL, 0.),
WallLocation::Right => Vec2::new(RIGHT_WALL, 0.),
WallLocation::Bottom => Vec2::new(0., BOTTOM_WALL),
WallLocation::Top => Vec2::new(0., TOP_WALL),
}
}
fn size(&self) -> Vec2 {
let arena_height = TOP_WALL - BOTTOM_WALL;
let arena_width = RIGHT_WALL - LEFT_WALL;
// Make sure we haven't messed up our constants
assert!(arena_height > 0.0);
assert!(arena_width > 0.0);
match self {
WallLocation::Left | WallLocation::Right => {
Vec2::new(WALL_THICKNESS, arena_height + WALL_THICKNESS)
}
WallLocation::Bottom | WallLocation::Top => {
Vec2::new(arena_width + WALL_THICKNESS, WALL_THICKNESS)
}
}
}
}
// This resource tracks the game's score
struct Scoreboard {
score: usize,
}
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_plugin(QuinnetServerPlugin::default())
.add_plugin(QuinnetClientPlugin::default())
.add_event::<CollisionEvent>()
.add_state(GameState::MainMenu)
// Resources
.insert_resource(Scoreboard { score: 0 })
.insert_resource(ClearColor(BACKGROUND_COLOR))
.insert_resource(server::Players::default())
.insert_resource(client::ClientData::default())
.insert_resource(client::NetworkMapping::default())
.insert_resource(client::BricksMapping::default())
// Main menu
.add_system_set(
SystemSet::on_enter(GameState::MainMenu).with_system(client::setup_main_menu),
)
.add_system_set(
SystemSet::on_update(GameState::MainMenu).with_system(client::handle_menu_buttons),
)
.add_system_set(
SystemSet::on_exit(GameState::MainMenu).with_system(client::teardown_main_menu),
)
// Hosting a server on a client
.add_system_set(
SystemSet::on_enter(GameState::HostingLobby)
.with_system(server::start_listening)
.with_system(client::start_connection),
)
.add_system_set(
SystemSet::on_update(GameState::HostingLobby)
.with_system(server::handle_client_messages)
.with_system(server::handle_server_events)
.with_system(client::handle_server_messages),
)
// or just Joining as a client
.add_system_set(
SystemSet::on_enter(GameState::JoiningLobby).with_system(client::start_connection),
)
.add_system_set(
SystemSet::on_update(GameState::JoiningLobby)
.with_system(client::handle_server_messages),
)
// Running the game.
// Every app is a client
.add_system_set(SystemSet::on_enter(GameState::Running).with_system(client::setup_breakout))
.add_system_set(
SystemSet::new()
// https://github.com/bevyengine/bevy/issues/1839
// Run on a fixed Timestep,on all clients, in GameState::Running
.with_run_criteria(FixedTimestep::step(TIME_STEP as f64).chain(
|In(input): In<ShouldRun>, state: Res<State<GameState>>| match state.current() {
GameState::Running => input,
_ => ShouldRun::No,
},
))
.with_system(client::handle_server_messages.before(client::apply_velocity))
.with_system(client::apply_velocity)
.with_system(client::move_paddle)
.with_system(client::update_scoreboard)
.with_system(client::play_collision_sound.after(client::handle_server_messages)),
)
// But hosting apps are also a server
.add_system_set(
SystemSet::new()
// https://github.com/bevyengine/bevy/issues/1839
// Run on a fixed Timestep, only for the hosting client, in GameState::Running
.with_run_criteria(FixedTimestep::step(TIME_STEP as f64).chain(
|In(input): In<ShouldRun>,
state: Res<State<GameState>>,
server: Res<Server>| match state.current() {
GameState::Running => match server.is_listening() {
true => input,
false => ShouldRun::No,
},
_ => ShouldRun::No,
},
))
.with_system(server::handle_client_messages.before(server::update_paddles))
.with_system(server::update_paddles.before(server::check_for_collisions))
.with_system(server::apply_velocity.before(server::check_for_collisions))
.with_system(server::check_for_collisions),
// .with_system(play_collision_sound.after(check_for_collisions))
// .with_system(update_scoreboard)
)
.add_system(bevy::window::close_on_esc)
.run();
}
|
