bevy_sync 0.18.5

Plugin for synchronizing entities and components between server and its clients.
Documentation 
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use bevy_app::prelude::*;
use bevy_connect::prelude::*;
use bevy_ecs::prelude::*;

use crate::{networking::assets::AssetMessage, SyncStats};

pub(crate) struct MetricsPlugin;

impl Plugin for MetricsPlugin {
    fn build(&self, app: &mut App) {
        app.init_resource::<SyncStats>();
        app.add_systems(Update, update_stats);
    }
}

fn update_stats(
    mut stats: ResMut<SyncStats>,
    syncs: Option<Res<Channel<crate::proto::Message>>>,
    assets: Option<Res<Channel<AssetMessage>>>,
) {
    if let Some(syncs) = syncs {
        let r = syncs.total_read();
        let s = syncs.total_sent();
        if stats.total_sync_net_read_prev < r {
            stats.total_sync_net_read += r - stats.total_sync_net_read_prev;
        }
        if stats.total_sync_net_sent_prev < s {
            stats.total_sync_net_sent += s - stats.total_sync_net_sent_prev;
        }
        stats.total_sync_net_read_prev = r;
        stats.total_sync_net_sent_prev = s;
    }
    if let Some(assets) = assets {
        let r = assets.total_read();
        let s = assets.total_sent();
        if stats.total_asset_net_read_prev < r {
            stats.total_asset_net_read += r - stats.total_sync_net_read_prev;
        }
        if stats.total_asset_net_sent_prev < s {
            stats.total_asset_net_sent += s - stats.total_sync_net_sent_prev;
        }
        stats.total_asset_net_read_prev = r;
        stats.total_asset_net_sent_prev = s;
    }
}