SamandClaude Opus 5.5
3e56cddb17
1,031 comment lines become 320; the code is unchanged. A guid test called transport 176495 the Menethil-Theramore ferry. The world database names it the Grom'Gol-Undercity zeppelin. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
44 lines
1.6 KiB
Rust
44 lines
1.6 KiB
Rust
//! The area-trigger pair: the client's report of entering an `AreaTrigger.dbc` volume, and the
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//! server's refusal text. The server decides what a trigger does; a teleport arrives as
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//! `SMSG_TRANSFER_PENDING` and `SMSG_NEW_WORLD`, or a same-map `MSG_MOVE_TELEPORT_ACK`.
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use std::io;
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use crate::wire::{read_cstring, read_u32_le};
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/// `CMSG_AREATRIGGER` (180, as `0x5e2110` sends it): the `u32` `AreaTrigger.dbc` id. The server
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/// obeys only a real row with the player inside the volume (5 yd slop), never while taxi-flying
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/// (`Handlers/MiscHandler.cpp:622`).
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pub fn area_trigger(trigger_id: u32) -> Vec<u8> {
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trigger_id.to_le_bytes().to_vec()
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}
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/// `SMSG_AREA_TRIGGER_MESSAGE` (`0x2b8`, `Server/WorldSession.cpp:882-898`): why a trigger did
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/// not fire, as a `u32` length (terminator included), which the reference ignores, then the text.
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pub(super) fn read_area_trigger_message(r: &mut &[u8]) -> io::Result<String> {
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let _length = read_u32_le(r)?;
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read_cstring(r)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn body_is_the_bare_id() {
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assert_eq!(area_trigger(542), 542u32.to_le_bytes().to_vec());
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}
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#[test]
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fn message_reads_past_its_length_prefix() {
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let text = "You must be at least level 58 to enter.";
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let mut body = Vec::new();
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body.extend_from_slice(&(text.len() as u32 + 1).to_le_bytes());
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body.extend_from_slice(text.as_bytes());
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body.push(0);
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let mut r = body.as_slice();
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assert_eq!(read_area_trigger_message(&mut r).unwrap(), text);
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assert!(r.is_empty(), "the whole body is consumed");
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}
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}
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