72 lines
2.4 KiB
Rust
72 lines
2.4 KiB
Rust
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//! Headless dedicated server.
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//!
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//! ```text
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//! game-server [--port 5000] [--save saves/server.rsn | --no-save] [--map maps/station.tmx]
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//! ```
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use std::{path::PathBuf, time::Duration};
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use bevy::{app::ScheduleRunnerPlugin, log::LogPlugin, prelude::*, state::app::StatesPlugin};
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use bevy_replicon::prelude::*;
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use bevy_replicon_renet::RepliconRenetPlugins;
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use game_core::CorePlugin;
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use game_server::{GameServerPlugin, NetworkServerPlugin, ServerSettings};
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fn main() -> AppExit {
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let mut port = game_core::DEFAULT_PORT;
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let mut settings = ServerSettings {
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save_path: Some(PathBuf::from("saves/server.rsn")),
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..Default::default()
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};
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let mut args = std::env::args().skip(1);
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while let Some(arg) = args.next() {
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let mut value = |name: &str| {
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args.next()
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.unwrap_or_else(|| usage(&format!("{name} needs a value")))
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};
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match arg.as_str() {
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"--port" => {
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port = value("--port")
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.parse()
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.unwrap_or_else(|_| usage("invalid port"))
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}
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"--save" => settings.save_path = Some(value("--save").into()),
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"--no-save" => settings.save_path = None,
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"--map" => settings.map = value("--map"),
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"-h" | "--help" => usage(""),
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other => usage(&format!("unknown argument `{other}`")),
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}
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}
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App::new()
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.add_plugins((
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MinimalPlugins.set(ScheduleRunnerPlugin::run_loop(Duration::from_secs_f64(
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1.0 / 60.0,
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))),
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StatesPlugin,
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LogPlugin::default(),
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bevy::app::TerminalCtrlCHandlerPlugin,
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RepliconPlugins,
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RepliconRenetPlugins,
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CorePlugin,
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GameServerPlugin { settings },
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NetworkServerPlugin { port },
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))
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.run()
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}
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fn usage(error: &str) -> ! {
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if !error.is_empty() {
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eprintln!("error: {error}\n");
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}
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eprintln!(
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"usage: game-server [--port PORT] [--save FILE | --no-save] [--map MAP]\n\n\
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--port UDP port to listen on (default {})\n\
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--save persistent world file (default saves/server.rsn)\n\
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--map Tiled map relative to the assets directory (default {})",
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game_core::DEFAULT_PORT,
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game_core::DEFAULT_MAP
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);
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std::process::exit(if error.is_empty() { 0 } else { 2 })
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}
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