dem 0.2.3

GoldSrc demo parser and writer library
Documentation 
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use super::*;

impl Doer for SvcNewUserMsg {
    fn id(&self) -> u8 {
        39
    }

    fn parse(i: &[u8], aux: AuxRefCell) -> Result<Self> {
        map(
            tuple((le_u8, le_i8, take(16usize))),
            |(index, size, name): (_, _, &[u8])| {
                let msg = Self {
                    index,
                    size,
                    name: name.into(),
                };

                let mut aux = aux.borrow_mut();

                // mutate custom_messages
                aux.custom_messages.remove(&index);
                aux.custom_messages.insert(index, msg.to_owned());

                msg
            },
        )(i)
    }

    fn write(&self, _: AuxRefCell) -> ByteVec {
        let mut writer = ByteWriter::new();

        writer.append_u8(self.id());

        writer.append_u8(self.index);
        writer.append_i8(self.size);
        writer.append_u8_slice(self.name.padded(16).as_slice());

        writer.data
    }
}