azalea_protocol/packets/game/
c_damage_event.rs

1use std::io::{self, Cursor, Write};
2
3use azalea_buf::{AzBuf, AzBufVar};
4use azalea_core::{entity_id::MinecraftEntityId, position::Vec3};
5use azalea_protocol_macros::ClientboundGamePacket;
6
7#[derive(AzBuf, ClientboundGamePacket, Clone, Debug, PartialEq)]
8pub struct ClientboundDamageEvent {
9    #[var]
10    pub entity_id: MinecraftEntityId,
11    #[var]
12    pub source_type_id: u32,
13    pub source_cause_id: OptionalEntityId,
14    pub source_direct_id: OptionalEntityId,
15    pub source_position: Option<Vec3>,
16}
17
18#[derive(Clone, Debug, PartialEq)]
19pub struct OptionalEntityId(pub Option<u32>);
20impl AzBuf for OptionalEntityId {
21    fn azalea_read(buf: &mut Cursor<&[u8]>) -> Result<Self, azalea_buf::BufReadError> {
22        match u32::azalea_read_var(buf)? {
23            0 => Ok(OptionalEntityId(None)),
24            id => Ok(OptionalEntityId(Some(id - 1))),
25        }
26    }
27    fn azalea_write(&self, buf: &mut impl Write) -> io::Result<()> {
28        match self.0 {
29            Some(id) => (id + 1).azalea_write_var(buf),
30            None => 0u32.azalea_write_var(buf),
31        }
32    }
33}