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use std::io::{Read, Write};
use crate::Guid;
use crate::shared::level_vanilla_tbc_wrath::Level;
use crate::tbc::{
Area, LfgMode, LfgPlayerMember,
};
/// Auto generated from the original `wowm` in file [`wow_message_parser/wowm/world/lfg/msg_looking_for_group.wowm:36`](https://github.com/gtker/wow_messages/tree/main/wow_message_parser/wowm/world/lfg/msg_looking_for_group.wowm#L36):
/// ```text
/// struct LfgPlayer {
/// PackedGuid guid;
/// Level32 level;
/// Area area;
/// LfgMode lfg_mode;
/// u32[3] lfg_slots;
/// CString comment;
/// u32 amount_of_members;
/// LfgPlayerMember[amount_of_members] members;
/// }
/// ```
#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Default)]
pub struct LfgPlayer {
pub guid: Guid,
pub level: Level,
pub area: Area,
pub lfg_mode: LfgMode,
pub lfg_slots: [u32; 3],
pub comment: String,
pub members: Vec<LfgPlayerMember>,
}
impl LfgPlayer {
pub(crate) fn write_into_vec(&self, mut w: impl Write) -> Result<(), std::io::Error> {
// guid: PackedGuid
crate::util::write_packed_guid(&self.guid, &mut w)?;
// level: Level32
w.write_all(&u32::from(self.level.as_int()).to_le_bytes())?;
// area: Area
w.write_all(&(self.area.as_int().to_le_bytes()))?;
// lfg_mode: LfgMode
w.write_all(&(self.lfg_mode.as_int().to_le_bytes()))?;
// lfg_slots: u32[3]
for i in self.lfg_slots.iter() {
w.write_all(&i.to_le_bytes())?;
}
// comment: CString
// TODO: Guard against strings that are already null-terminated
assert_ne!(self.comment.as_bytes().iter().next_back(), Some(&0_u8), "String `comment` must not be null-terminated.");
w.write_all(self.comment.as_bytes())?;
// Null terminator
w.write_all(&[0])?;
// amount_of_members: u32
w.write_all(&(self.members.len() as u32).to_le_bytes())?;
// members: LfgPlayerMember[amount_of_members]
for i in self.members.iter() {
i.write_into_vec(&mut w)?;
}
Ok(())
}
}
impl LfgPlayer {
pub(crate) fn read<R: std::io::Read>(mut r: R) -> Result<Self, crate::errors::ParseErrorKind> {
// guid: PackedGuid
let guid = crate::util::read_packed_guid(&mut r)?;
// level: Level32
let level = Level::new(crate::util::read_u32_le(&mut r)? as u8);
// area: Area
let area = crate::util::read_u32_le(&mut r)?.try_into()?;
// lfg_mode: LfgMode
let lfg_mode = crate::util::read_u8_le(&mut r)?.try_into()?;
// lfg_slots: u32[3]
let lfg_slots = {
let mut lfg_slots = [u32::default(); 3];
for i in lfg_slots.iter_mut() {
*i = crate::util::read_u32_le(&mut r)?;
}
lfg_slots
};
// comment: CString
let comment = {
let comment = crate::util::read_c_string_to_vec(&mut r)?;
String::from_utf8(comment)?
};
// amount_of_members: u32
let amount_of_members = crate::util::read_u32_le(&mut r)?;
// members: LfgPlayerMember[amount_of_members]
let members = {
let mut members = Vec::with_capacity(amount_of_members as usize);
let allocation_size = u64::from(amount_of_members) * 5;
if allocation_size > crate::errors::MAX_ALLOCATION_SIZE {
return Err(crate::errors::ParseErrorKind::AllocationTooLargeError(allocation_size));
}
for _ in 0..amount_of_members {
members.push(LfgPlayerMember::read(&mut r)?);
}
members
};
Ok(Self {
guid,
level,
area,
lfg_mode,
lfg_slots,
comment,
members,
})
}
}
impl LfgPlayer {
pub(crate) fn size(&self) -> usize {
crate::util::packed_guid_size(&self.guid) // guid: PackedGuid
+ 4 // level: Level32
+ 4 // area: Area
+ 1 // lfg_mode: LfgMode
+ 12 // lfg_slots: u32[3]
+ self.comment.len() + 1 // comment: CString
+ 4 // amount_of_members: u32
+ self.members.iter().fold(0, |acc, x| acc + x.size()) // members: LfgPlayerMember[amount_of_members]
}
}