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|
use crate::Registry;
use anyhow::Result;
use hurrycurry_protocol::{
glam::{ivec2, vec2, IVec2, Vec2},
movement::MovementBase,
registry::Entry,
Gamedata, PacketC, PacketS, PlayerClass, PlayerID, TileIndex, VERSION,
};
use log::{error, info, warn};
use rocket::futures::{SinkExt, StreamExt};
use std::{
collections::{BTreeMap, HashMap, HashSet},
f32::consts::PI,
net::SocketAddr,
sync::Arc,
time::Instant,
};
use tokio::{
net::{TcpListener, TcpStream},
spawn,
sync::RwLock,
};
use tokio_tungstenite::tungstenite::Message;
pub(crate) async fn lobby_wrapper(registry: Arc<RwLock<Registry>>, saddr: SocketAddr) {
let Err(e) = lobby(registry, saddr).await;
error!("lobby crashed: {e}");
}
const TILES: &[(&str, bool)] = &[("grass", false), ("black-hole", false)];
async fn lobby(registry: Arc<RwLock<Registry>>, saddr: SocketAddr) -> Result<!> {
let ws_listener = TcpListener::bind(saddr).await?;
loop {
let (sock, addr) = ws_listener.accept().await?;
let r = registry.clone();
spawn(async move {
let entries = r.read().await.entries.clone();
if let Err(e) = handle_conn(sock, addr, &entries).await {
warn!("client error: {e}");
}
});
}
}
#[allow(unused_assignments)]
async fn handle_conn(sock: TcpStream, addr: SocketAddr, entries: &[Entry]) -> Result<()> {
let sock = tokio_tungstenite::accept_async(sock).await?;
info!("{addr} connected via websocket");
let ecount = entries.len().max(2) as f32;
let radius = ecount * 5. / PI;
let portal_location = |i: usize| {
let t = i as f32 / ecount * PI * 2.;
vec2(t.sin() * radius, t.cos() * radius).round().as_ivec2()
};
let mut tiles = HashMap::<IVec2, TileIndex>::new();
let bounds = (radius + 5.).ceil() as i32;
for x in -bounds..bounds {
for y in -bounds..bounds {
tiles.insert(ivec2(x, y), TileIndex(0));
}
}
for (i, _) in entries.iter().enumerate() {
tiles.insert(portal_location(i), TileIndex(1));
}
let mut out = Vec::new();
out.push(PacketC::Version {
major: VERSION.0,
minor: VERSION.1,
supports_bincode: false,
});
out.push(PacketC::Data {
data: Box::new(Gamedata {
tile_walkable: (0..TILES.len()).map(TileIndex).collect(),
tile_placeable_items: BTreeMap::new(),
tile_names: TILES.iter().map(|(s, _)| s.to_string()).collect(),
current_map: "registry".to_owned(),
..Default::default()
}),
});
let walkable = HashSet::from_iter(tiles.iter().filter(|(_, v)| !TILES[v.0].1).map(|(k, _)| *k));
for (&tile, &kind) in &tiles {
out.push(PacketC::UpdateMap {
tile,
kind: Some(kind),
neighbors: [None, None, None, None],
});
}
out.push(PacketC::FlushMap);
out.push(PacketC::SetIngame {
state: true,
lobby: false, // very ironic
});
let (mut write, mut read) = sock.split();
let mut joined = false;
let mut redirected = false;
let mut movement = MovementBase::new(Vec2::ZERO);
let mut last_movement = Instant::now();
loop {
for p in out.drain(..) {
write
.send(tokio_tungstenite::tungstenite::Message::Text(
serde_json::to_string(&p).unwrap().into(),
))
.await?;
}
let Some(message) = read.next().await.transpose()? else {
break;
};
let packet = match message {
Message::Text(line) => match serde_json::from_str::<PacketS>(&line) {
Ok(p) => p,
Err(e) => {
warn!("Invalid json packet: {e}");
break;
}
},
Message::Close(_) => break,
_ => continue,
};
match packet {
PacketS::Join {
character, name, ..
} if !joined => {
out.push(PacketC::Joined { id: PlayerID(0) });
out.push(PacketC::AddPlayer {
id: PlayerID(0),
position: movement.position,
class: PlayerClass::Chef,
character,
name,
});
for (i, e) in entries.iter().enumerate() {
out.push(PacketC::ServerHint {
position: Some(portal_location(i)),
message: Some(hurrycurry_protocol::Message::Text(e.name.clone())),
player: PlayerID(0),
});
}
joined = true;
}
PacketS::Leave { .. } if joined => {
out.push(PacketC::RemovePlayer { id: PlayerID(0) });
joined = false;
}
PacketS::Movement {
player,
dir,
boost,
pos,
} => {
let dt = last_movement.elapsed();
last_movement += dt;
movement.position = pos.unwrap_or(movement.position);
movement.input(dir, boost);
movement.update(&walkable, dt.as_secs_f32());
out.push(movement.movement_packet_c(player));
if !redirected {
for (i, e) in entries.iter().enumerate() {
if movement
.position
.distance(portal_location(i).as_vec2() + 0.5)
< 0.5
{
redirected = true;
out.push(PacketC::Redirect {
uri: e.address.clone(),
});
break;
}
}
}
}
_ => (),
}
}
Ok(())
}
|
