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use azalea_entity::metadata::Health;
use bevy_app::{App, Plugin, Update};
use bevy_ecs::{
prelude::*,
system::{SystemParam, SystemState},
};
use self::game::DeathEvent;
use crate::client_chat::ChatReceivedEvent;
pub mod config;
pub mod game;
pub mod login;
pub mod relative_updates;
pub struct PacketPlugin;
pub fn death_event_on_0_health(
query: Query<(Entity, &Health), Changed<Health>>,
mut death_events: MessageWriter<DeathEvent>,
) {
for (entity, health) in query.iter() {
if **health == 0. {
death_events.write(DeathEvent {
entity,
packet: None,
});
}
}
}
impl Plugin for PacketPlugin {
fn build(&self, app: &mut App) {
app.add_systems(
Update,
relative_updates::debug_detect_updates_received_on_local_entities,
)
.add_observer(game::handle_outgoing_packets_observer)
.add_observer(config::handle_outgoing_packets_observer)
.add_observer(login::handle_outgoing_packets_observer)
.add_systems(Update, death_event_on_0_health)
.add_message::<game::ReceiveGamePacketEvent>()
.add_message::<config::ReceiveConfigPacketEvent>()
.add_message::<login::ReceiveLoginPacketEvent>()
//
.add_message::<game::AddPlayerEvent>()
.add_message::<game::RemovePlayerEvent>()
.add_message::<game::UpdatePlayerEvent>()
.add_message::<ChatReceivedEvent>()
.add_message::<game::DeathEvent>()
.add_message::<game::ResourcePackEvent>()
.add_message::<game::WorldLoadedEvent>()
.add_message::<login::ReceiveCustomQueryEvent>();
}
}
pub(crate) use azalea_protocol::azalea_protocol_macros::declare_packet_handlers;
#[derive(Resource)]
struct CachedSystemState<T: SystemParam + 'static>(SystemState<T>);
pub(crate) fn as_system<T>(ecs: &mut World, f: impl FnOnce(T::Item<'_, '_>))
where
T: SystemParam + 'static,
{
// creating a new SystemState is expensive, so we save them as a Resource in the
// ecs
let mut system_state = match ecs.remove_resource::<CachedSystemState<T>>() {
Some(s) => s.0,
None => SystemState::<T>::new(ecs),
};
let values = system_state.get_mut(ecs);
f(values);
system_state.apply(ecs);
ecs.insert_resource(CachedSystemState(system_state));
}
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