2022-07-14 20:40:26 +10:00
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use std::net::SocketAddr;
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use std::sync::atomic::{AtomicUsize, Ordering};
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use log::LevelFilter;
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use valence::async_trait;
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use valence::block::{BlockPos, BlockState};
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use valence::client::GameMode;
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use valence::config::{Config, ServerListPing};
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use valence::dimension::DimensionId;
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2022-07-16 13:40:39 +10:00
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use valence::entity::{EntityKind, EntityState};
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2022-07-14 20:40:26 +10:00
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use valence::server::{Server, SharedServer, ShutdownResult};
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2022-07-16 13:40:39 +10:00
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use valence::spatial_index::RaycastHit;
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2022-07-14 20:40:26 +10:00
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use valence::text::{Color, TextFormat};
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use valence::util::from_yaw_and_pitch;
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use vek::Vec3;
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pub fn main() -> ShutdownResult {
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env_logger::Builder::new()
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.filter_module("valence", LevelFilter::Trace)
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.parse_default_env()
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.init();
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2022-07-16 13:40:39 +10:00
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valence::start_server(
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Game {
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player_count: AtomicUsize::new(0),
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},
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(),
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)
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2022-07-14 20:40:26 +10:00
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}
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struct Game {
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player_count: AtomicUsize,
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}
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const MAX_PLAYERS: usize = 10;
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2022-07-16 13:40:39 +10:00
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const SPAWN_POS: BlockPos = BlockPos::new(0, 100, -5);
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2022-07-14 20:40:26 +10:00
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const PLAYER_EYE_HEIGHT: f64 = 1.6;
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#[async_trait]
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impl Config for Game {
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2022-07-16 13:40:39 +10:00
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type ChunkData = ();
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type ClientData = ();
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/// `true` for entities that have been intersected with.
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type EntityData = bool;
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type ServerData = ();
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type WorldData = ();
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2022-07-14 20:40:26 +10:00
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fn max_connections(&self) -> usize {
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// We want status pings to be successful even if the server is full.
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MAX_PLAYERS + 64
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}
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fn online_mode(&self) -> bool {
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// You'll want this to be true on real servers.
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false
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}
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async fn server_list_ping(
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&self,
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2022-07-16 13:40:39 +10:00
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_server: &SharedServer<Self>,
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2022-07-14 20:40:26 +10:00
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_remote_addr: SocketAddr,
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) -> ServerListPing {
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ServerListPing::Respond {
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online_players: self.player_count.load(Ordering::SeqCst) as i32,
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max_players: MAX_PLAYERS as i32,
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description: "Hello Valence!".color(Color::AQUA),
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favicon_png: Some(include_bytes!("../assets/favicon.png")),
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}
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}
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2022-07-16 13:40:39 +10:00
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fn init(&self, server: &mut Server<Self>) {
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let (world_id, world) = server.worlds.create(DimensionId::default(), ());
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2022-07-14 20:40:26 +10:00
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world.meta.set_flat(true);
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let size = 5;
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for z in -size..size {
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for x in -size..size {
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2022-07-16 13:40:39 +10:00
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world.chunks.create([x, z], ());
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2022-07-14 20:40:26 +10:00
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}
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}
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world.chunks.set_block_state(SPAWN_POS, BlockState::BEDROCK);
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const SHEEP_COUNT: usize = 10;
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for i in 0..SHEEP_COUNT {
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let offset = (i as f64 - (SHEEP_COUNT - 1) as f64 / 2.0) * 1.25;
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2022-07-16 13:40:39 +10:00
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let (_, sheep) = server.entities.create(EntityKind::Sheep, false);
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2022-07-14 20:40:26 +10:00
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sheep.set_world(world_id);
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sheep.set_position([offset + 0.5, SPAWN_POS.y as f64 + 1.0, 0.0]);
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sheep.set_yaw(180.0);
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sheep.set_head_yaw(180.0);
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}
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}
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2022-07-16 13:40:39 +10:00
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fn update(&self, server: &mut Server<Self>) {
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let (world_id, world) = server.worlds.iter_mut().next().unwrap();
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server.clients.retain(|_, client| {
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if client.created_tick() == server.shared.current_tick() {
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if self
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.player_count
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.fetch_update(Ordering::SeqCst, Ordering::SeqCst, |count| {
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(count < MAX_PLAYERS).then_some(count + 1)
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})
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.is_err()
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{
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client.disconnect("The server is full!".color(Color::RED));
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return false;
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}
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client.spawn(world_id);
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client.set_game_mode(GameMode::Creative);
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client.teleport(
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[
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SPAWN_POS.x as f64 + 0.5,
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SPAWN_POS.y as f64 + 1.0,
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SPAWN_POS.z as f64 + 0.5,
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],
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0.0,
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0.0,
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);
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world.meta.player_list_mut().insert(
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client.uuid(),
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client.username().to_owned(),
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client.textures().cloned(),
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client.game_mode(),
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0,
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None,
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);
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client.send_message(
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"Look at a sheep to change its ".italic()
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+ "color".italic().color(Color::GREEN)
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+ ".",
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2022-07-16 13:40:39 +10:00
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);
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}
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if client.is_disconnected() {
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self.player_count.fetch_sub(1, Ordering::SeqCst);
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world.meta.player_list_mut().remove(client.uuid());
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return false;
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}
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let client_pos = client.position();
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let origin = Vec3::new(client_pos.x, client_pos.y + PLAYER_EYE_HEIGHT, client_pos.z);
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let direction = from_yaw_and_pitch(client.yaw() as f64, client.pitch() as f64);
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let only_sheep = |hit: &RaycastHit| {
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server
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.entities
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.get(hit.entity)
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.map_or(false, |e| e.kind() == EntityKind::Sheep)
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2022-07-16 13:40:39 +10:00
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};
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if let Some(hit) = world.spatial_index.raycast(origin, direction, only_sheep) {
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if let Some(e) = server.entities.get_mut(hit.entity) {
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e.data = true;
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}
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2022-07-14 20:40:26 +10:00
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}
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true
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});
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2022-07-16 13:40:39 +10:00
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for (_, e) in server.entities.iter_mut() {
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if let EntityState::Sheep(sheep) = &mut e.state {
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if e.data {
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2022-07-14 20:40:26 +10:00
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sheep.set_sheep_state(5);
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} else {
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sheep.set_sheep_state(0);
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}
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}
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2022-07-16 13:40:39 +10:00
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e.data = false;
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2022-07-14 20:40:26 +10:00
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}
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}
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}
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