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/*
wearechat - generic multiplayer game with voip
Copyright (C) 2025 metamuffin
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3 of the License only.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
pub mod network;
use anyhow::Result;
use clap::Parser;
use log::{debug, warn};
use network::ServerNetwork;
use std::net::{IpAddr, SocketAddr};
use weareshared::{
packets::{Data, Packet},
resources::PrefabIndex,
store::ResourceStore,
tree::SceneTree,
};
#[derive(Parser, Debug)]
struct Args {
#[arg(short, long, default_value = "::")]
bind_addr: IpAddr,
#[arg(short, long, default_value = "28555")]
port: u16,
}
struct State {
store: ResourceStore,
tree: SceneTree,
prefab_index: PrefabIndex,
}
fn main() -> Result<()> {
env_logger::init_from_env("LOG");
let args = Args::parse();
let net = ServerNetwork::new(SocketAddr::new(args.bind_addr, args.port))?;
let mut state = State::new()?;
while let Ok((conn, packet)) = net.recv.recv() {
if let Err(e) = state.handle_packet(conn, packet, &net) {
warn!("state handler error: ({conn}) {e}");
}
}
Ok(())
}
impl State {
pub fn new() -> Result<Self> {
Ok(Self {
store: ResourceStore::new_persistent(
&xdg::BaseDirectories::with_prefix("weareserver")?.place_cache_file("resources")?,
)?,
tree: SceneTree::default(),
prefab_index: PrefabIndex::default(),
})
}
pub fn handle_packet(&mut self, conn: u128, packet: Packet, net: &ServerNetwork) -> Result<()> {
self.tree.packet(&packet);
match packet {
Packet::Connect(_) => {
for p in self.tree.prime_client() {
net.send(conn, p, true);
}
}
Packet::Disconnect => {}
Packet::RequestResource(resource) => {
if let Some(r) = self.store.get_raw(resource)? {
debug!("resource is cached");
net.send(conn, Packet::RespondResource(Data(r)), true);
} else {
debug!("resource not cached, request is broadcast");
net.broadcast(Packet::RequestResource(resource), true);
}
}
Packet::RespondResource(data) => {
self.store.set_raw(&data.0)?;
net.broadcast(Packet::RespondResource(data), true);
}
Packet::Add(object, resource) => {
net.broadcast(Packet::Add(object, resource), true);
}
Packet::Remove(object) => {
net.broadcast(Packet::Remove(object), true);
}
Packet::Position(object, pos, rot) => {
net.broadcast(Packet::Position(object, pos, rot), false);
}
Packet::Pose(object, vec) => {
net.broadcast(Packet::Pose(object, vec), false);
}
Packet::Parent(parent, child) => {
net.broadcast(Packet::Parent(parent, child), true);
}
Packet::Sound(object, vec) => {
net.broadcast(Packet::Sound(object, vec), true);
}
Packet::PrefabIndex(_) => {
// ok
}
Packet::PrefabName(resource, name) => {
self.prefab_index.0.insert(name, resource);
net.broadcast(
Packet::PrefabIndex(self.store.set(&self.prefab_index)?),
true,
);
}
}
Ok(())
}
}
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