1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
use azalea_entity::{EntityUpdateSet, metadata::Health};
use bevy_app::{App, First, Plugin, PreUpdate, Update};
use bevy_ecs::{
prelude::*,
system::{SystemParam, SystemState},
};
use self::{
game::{
AddPlayerEvent, DeathEvent, InstanceLoadedEvent, KeepAliveEvent, RemovePlayerEvent,
ResourcePackEvent, UpdatePlayerEvent,
},
login::{LoginPacketEvent, SendLoginPacketEvent},
};
use crate::{chat::ChatReceivedEvent, events::death_listener};
pub mod config;
pub mod game;
pub mod login;
pub struct PacketPlugin;
pub fn death_event_on_0_health(
query: Query<(Entity, &Health), Changed<Health>>,
mut death_events: EventWriter<DeathEvent>,
) {
for (entity, health) in query.iter() {
if **health == 0. {
death_events.send(DeathEvent {
entity,
packet: None,
});
}
}
}
impl Plugin for PacketPlugin {
fn build(&self, app: &mut App) {
app.add_systems(
First,
(game::send_receivepacketevent, config::send_packet_events),
)
.add_systems(
PreUpdate,
(
game::process_packet_events
// we want to index and deindex right after
.before(EntityUpdateSet::Deindex),
config::process_packet_events,
login::handle_send_packet_event,
login::process_packet_events,
),
)
.add_systems(
Update,
(
(
config::handle_send_packet_event,
game::handle_outgoing_packets,
)
.chain(),
death_event_on_0_health.before(death_listener),
),
)
// we do this instead of add_event so we can handle the events ourselves
.init_resource::<Events<game::ReceivePacketEvent>>()
.init_resource::<Events<config::ReceiveConfigPacketEvent>>()
.add_event::<game::SendPacketEvent>()
.add_event::<config::SendConfigPacketEvent>()
.add_event::<AddPlayerEvent>()
.add_event::<RemovePlayerEvent>()
.add_event::<UpdatePlayerEvent>()
.add_event::<ChatReceivedEvent>()
.add_event::<DeathEvent>()
.add_event::<KeepAliveEvent>()
.add_event::<ResourcePackEvent>()
.add_event::<InstanceLoadedEvent>()
.add_event::<LoginPacketEvent>()
.add_event::<SendLoginPacketEvent>();
}
}
#[macro_export]
macro_rules! declare_packet_handlers {
(
$packetenum:ident,
$packetvar:expr,
$handler:ident,
[$($packet:path),+ $(,)?]
) => {
paste::paste! {
match $packetvar {
$(
$packetenum::[< $packet:camel >](p) => $handler.$packet(p),
)+
}
}
};
}
pub(crate) fn as_system<T>(ecs: &mut World, f: impl FnOnce(T::Item<'_, '_>))
where
T: SystemParam + 'static,
{
let mut system_state = SystemState::<T>::new(ecs);
let values = system_state.get_mut(ecs);
f(values);
system_state.apply(ecs);
}
|
