Networking bootstrap on top of bevy_replicon

implementing basic transform systems for netcodes.

• game code agnostic systems including
  • client prediction
  • interpolation
• basic distance based replication culling
• basic replication grouping
• each features can be replaced with other expert crates

running development demo with Rapier3D's KinematicCharacterController.

cargo run --bin server
cargo run --bin client

in development demo, you will see a lot of unorganized plugins and bundles.
but point is that character controlling systems are able to be written as ordinary as offline systems.

pub fn ground_check_system(
    mut query: Query<(
        &Transform,
        &KinematicCharacterController,
        &mut Jump
    )>,
    rapier: Res<RapierContext>
) {
    ---
}

pub fn update_character_controller_system(
    mut query: Query<(
        &mut Transform,
        &mut KinematicCharacterController,
        &mut Jump,
        &mut EventCache<NetworkMovement2_5D>
    )>,
    params: Res<PlayerMovementParams>,
    time: Res<Time<Fixed>>
) {
    ---
}

pub fn apply_gravity_system(
    mut query: Query<(
        &mut KinematicCharacterController, 
        &mut Jump
    )>,
    time: Res<Time<Fixed>>
) {
    ---
}

and then, just add systems on server and client as same as offline.

---.add_systems(FixedUpdate,(
    ground_check_system,
    update_character_controller_system,
    apply_gravity_system
).chain()---