update all examples to support listen-server mode

examples/bullet_prespawn/Cargo.toml

@@ -33,3 +33,4 @@ metrics-exporter-prometheus = { version = "0.13.0", optional = true }
 bevy-inspector-egui = "0.23"
 cfg-if = "1.0.0"
 ron = "0.8.1"
+crossbeam-channel = "0.5.11"

examples/bullet_prespawn/README.md

@@ -1,20 +1,39 @@
 # Features
 
-
 This example showcases how prespawning player objects on the client side works:
-- you just have to add a `PreSpawnedPlayedObject` component to the pre-spawned entity. The system that spawns the entity can be identical in the client and the server
+
+- you just have to add a `PreSpawnedPlayedObject` component to the pre-spawned entity. The system that spawns the entity
+  can be identical in the client and the server
 - the client spawns the entity immediately in the predicted timeline
 - when the client receives the server entity, it will match it with the existing pre-spawned entity!
 
+https://github.com/cBournhonesque/lightyear/assets/8112632/ee547c32-1f14-4bdc-9e6d-67f900af84d0
 
+## Running the example
 
-https://github.com/cBournhonesque/lightyear/assets/8112632/ee547c32-1f14-4bdc-9e6d-67f900af84d0
+You can either run the example as a "Listen Server" (the program acts as both client and server)
+with: `cargo run -- listen-server`
+or as dedicated server with `cargo run -- server`
+
+Then you can launch multiple clients with the commands:
+
+- `cargo run -- client -c 1`
+- `cargo run -- client -c 2`
+
+You can modify the file `assets/settings.ron` to modify some networking settings.
+
+### Testing webtransport in wasm
 
+NOTE: I am using [trunk](https://trunkrs.dev/) to build and serve the wasm example.
 
+To test the example in wasm, you can run the following commands: `trunk serve`
 
-# Usage
+You will need a valid SSL certificate to test the example in wasm using webtransport. You will need to run the following
+commands:
 
-- Run the server with: `cargo run -- server --headless`
-- Run the clients with:
-`cargo run -- client -c 1`
-`cargo run -- client -c 2`
+- `sh examples/generate.sh` (to generate the temporary SSL certificates, they are only valid for 2 weeks)
+- `cargo run -- server` to start the server. The server will print out the certificate digest (something
+  like `1fd28860bd2010067cee636a64bcbb492142295b297fd8c480e604b70ce4d644`)
+- You then have to replace the certificate digest in the `assets/settings.ron` file with the one that the server printed
+  out.
+- then start the client wasm test with `trunk serve`

examples/bullet_prespawn/src/client.rs

@@ -1,6 +1,6 @@
-use crate::protocol::*;
-use crate::shared::{color_from_id, shared_config, shared_player_movement};
-use crate::{shared, ClientTransports, SharedSettings, KEY, PROTOCOL_ID};
+use std::net::{Ipv4Addr, SocketAddr};
+use std::str::FromStr;
+
 use bevy::app::PluginGroupBuilder;
 use bevy::ecs::schedule::{LogLevel, ScheduleBuildSettings};
 use bevy::prelude::*;
@@ -11,12 +11,15 @@ use leafwing_input_manager::buttonlike::ButtonState::Pressed;
 use leafwing_input_manager::orientation::Orientation;
 use leafwing_input_manager::plugin::InputManagerSystem;
 use leafwing_input_manager::prelude::*;
+
 use lightyear::inputs::native::input_buffer::InputBuffer;
 use lightyear::prelude::client::LeafwingInputPlugin;
 use lightyear::prelude::client::*;
 use lightyear::prelude::*;
-use std::net::{Ipv4Addr, SocketAddr};
-use std::str::FromStr;
+
+use crate::protocol::*;
+use crate::shared::{color_from_id, shared_config, shared_player_movement};
+use crate::{shared, ClientTransports, SharedSettings};
 
 pub const INPUT_DELAY_TICKS: u16 = 0;
 pub const CORRECTION_TICKS_FACTOR: f32 = 1.5;
@@ -28,25 +31,10 @@ pub struct ClientPluginGroup {
 impl ClientPluginGroup {
     pub(crate) fn new(
         client_id: u64,
-        client_port: u16,
         server_addr: SocketAddr,
-        transport: ClientTransports,
+        transport_config: TransportConfig,
         shared_settings: SharedSettings,
     ) -> ClientPluginGroup {
-        let client_addr = SocketAddr::new(Ipv4Addr::UNSPECIFIED.into(), client_port);
-        let transport_config = match transport {
-            #[cfg(not(target_family = "wasm"))]
-            ClientTransports::Udp => TransportConfig::UdpSocket(client_addr),
-            ClientTransports::WebTransport { certificate_digest } => {
-                TransportConfig::WebTransportClient {
-                    client_addr,
-                    server_addr,
-                    #[cfg(target_family = "wasm")]
-                    certificate_digest,
-                }
-            }
-            ClientTransports::WebSocket => TransportConfig::WebSocketClient { server_addr },
-        };
         let auth = Authentication::Manual {
             server_addr,
             client_id,