SamandClaude Opus 5.5
e8af9e8835
514 comment lines become 183; the code is unchanged. Three comments said something other than their bytes: - SMSG_NEW_WORLD's orientation is -0.5, not 0.5; - transport 176495 is the Grom'Gol-Undercity zeppelin, not the Menethil-Theramore ferry; - 176244 is the Moonspray, the Auberdine-Rut'theran boat, not the Orgrimmar-Undercity zeppelin. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
545 lines
20 KiB
Rust
545 lines
20 KiB
Rust
//! Server packets with small fixed bodies, parsed and decoded against hand-built bytes.
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mod common;
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use benilla_protocol::events::{decode, SessionEvent};
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use benilla_protocol::messages;
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use benilla_protocol::{MoveMode, ServerPacket};
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use common::hx;
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#[test]
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fn simple_server_bodies_parse() {
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match messages::parse_server(messages::opcode::SMSG_AUTH_CHALLENGE, &hx("efbeadde")).unwrap() {
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ServerPacket::AuthChallenge { server_seed } => assert_eq!(server_seed, 0xDEAD_BEEF),
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_ => panic!("auth challenge"),
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}
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// SMSG_NEW_WORLD: u32 map, f32 x/y/z, f32 orientation.
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let nw = hx("010000000000803f0000004000004040000000bf");
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match messages::parse_server(messages::opcode::SMSG_NEW_WORLD, &nw).unwrap() {
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ServerPacket::NewWorld {
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map,
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position,
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orientation,
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} => {
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assert_eq!(map, 1);
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assert_eq!((position.x, position.y, position.z), (1.0, 2.0, 3.0));
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assert_eq!(orientation, -0.5);
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}
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_ => panic!("new world"),
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}
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// SMSG_LOGIN_SETTIMESPEED: packed date (LSB up: minute:6, hour:5, weekday:3, day:6, month:4,
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// year:5) then f32 timescale. The day serial counts 31-day months: year·372 + month·31 + day.
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let datetime: u32 = (26 << 24) | (6 << 20) | (17 << 14) | (14 << 6) | 30;
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let mut ts = datetime.to_le_bytes().to_vec();
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ts.extend_from_slice(&0.0166_6667f32.to_le_bytes());
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match messages::parse_server(messages::opcode::SMSG_LOGIN_SETTIMESPEED, &ts).unwrap() {
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ServerPacket::TimeSpeed {
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hours,
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minutes,
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day_serial,
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timescale,
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} => {
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assert_eq!((hours, minutes), (14, 30));
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assert_eq!(day_serial, 26 * 372 + 6 * 31 + 17);
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assert_eq!(timescale, 0.0166_6667);
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}
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_ => panic!("settimespeed"),
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}
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}
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/// The response is one u32 of unix-epoch seconds (vmangos `Handlers/QueryHandler.cpp:418-423`).
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#[test]
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fn query_time_round_trips_the_server_wall_clock() {
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assert!(
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messages::query_time().is_empty(),
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"CMSG_QUERY_TIME is a NullClientPacket"
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);
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// 2026-08-13T12:00:00Z = 1_786_622_400 = 0x6a7db1c0: four distinct bytes.
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assert_eq!(u32::from_le_bytes([0xc0, 0xb1, 0x7d, 0x6a]), 1_786_622_400);
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let p = messages::parse_server(messages::opcode::SMSG_QUERY_TIME_RESPONSE, &hx("c0b17d6a"))
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.unwrap();
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assert!(matches!(
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p,
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ServerPacket::QueryTimeResponse {
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unix_time: 1_786_622_400
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}
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));
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::ServerUnixTime {
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unix_time: 1_786_622_400
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}]
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));
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assert!(
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messages::parse_server(messages::opcode::SMSG_QUERY_TIME_RESPONSE, &hx("c0b17d")).is_err()
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);
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}
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/// `SMSG_TRIGGER_CINEMATIC` is one u32 `CinematicSequences.dbc` id; `SMSG_CHAR_DELETE` one byte.
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#[test]
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fn cinematic_and_char_delete_parse_and_decode() {
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// 41 = the dwarf intro.
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let body = 41u32.to_le_bytes();
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let p = messages::parse_server(messages::opcode::SMSG_TRIGGER_CINEMATIC, &body).unwrap();
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assert!(matches!(
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p,
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ServerPacket::TriggerCinematic { cinematic_id: 41 }
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));
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::CinematicTriggered { cinematic_id: 41 }]
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));
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// 0x39 = CHAR_DELETE_SUCCESS.
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let p = messages::parse_server(messages::opcode::SMSG_CHAR_DELETE, &[0x39]).unwrap();
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assert!(matches!(p, ServerPacket::CharDelete { result: 0x39 }));
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}
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#[test]
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fn server_sound_trio_parse_and_decode() {
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let body = 8595u32.to_le_bytes();
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let p = messages::parse_server(messages::opcode::SMSG_PLAY_SOUND, &body).unwrap();
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assert!(matches!(p, ServerPacket::PlaySound { sound_id: 8595 }));
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::PlaySound { sound_id: 8595 }]
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));
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let body = 2523u32.to_le_bytes();
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let p = messages::parse_server(messages::opcode::SMSG_PLAY_MUSIC, &body).unwrap();
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::PlayMusic { music_id: 2523 }]
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));
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// 3355: the fishing-bobber splash (vmangos `GameObject.cpp:373`).
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let mut body = 3355u32.to_le_bytes().to_vec();
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body.extend_from_slice(&0xF110_0000_0000_002Au64.to_le_bytes());
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let p = messages::parse_server(messages::opcode::SMSG_PLAY_OBJECT_SOUND, &body).unwrap();
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::PlayObjectSound {
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sound_id: 3355,
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guid: 0xF110_0000_0000_002A,
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}]
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));
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}
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/// Body per vmangos `Weather::SendWeatherForPlayersInZone`; 8534 is the RainMedium sound loop.
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#[test]
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fn weather_parses_and_decodes() {
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let mut body = 1u32.to_le_bytes().to_vec(); // WEATHER_TYPE_RAIN
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body.extend_from_slice(&0.7f32.to_le_bytes());
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body.extend_from_slice(&8534u32.to_le_bytes());
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body.push(0);
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let p = messages::parse_server(messages::opcode::SMSG_WEATHER, &body).unwrap();
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match decode(p).as_slice() {
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[SessionEvent::Weather {
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weather_type,
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grade,
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sound_id,
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instant,
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}] => {
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assert_eq!((*weather_type, *sound_id, *instant), (1, 8534, false));
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assert!((grade - 0.7).abs() < 1e-6);
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}
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other => panic!("weather decode: {} events", other.len()),
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}
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}
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/// u8 itemClass + u32 subclass bitmask, per vmangos `Skill.cpp` `AppendBodyTo`.
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#[test]
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fn set_proficiency_parses_and_decodes() {
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assert_eq!(messages::opcode::SMSG_SET_PROFICIENCY, 295);
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// Weapons (class 2), mask 0x2408F: what a fresh warrior gets.
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let body = hx("028f400200");
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let p = messages::parse_server(messages::opcode::SMSG_SET_PROFICIENCY, &body).unwrap();
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match p {
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ServerPacket::SetProficiency {
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item_class,
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subclass_mask,
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} => {
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assert_eq!(item_class, 2);
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assert_eq!(subclass_mask, 0x0002_408f);
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}
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_ => panic!("set proficiency"),
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}
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let p = messages::parse_server(messages::opcode::SMSG_SET_PROFICIENCY, &body).unwrap();
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::Proficiency {
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item_class: 2,
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subclass_mask: 0x0002_408f
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}]
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));
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}
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/// u32 count + count x (u32 reputationListId, i32 standing), per vmangos `SetFactionStanding`.
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#[test]
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fn set_faction_standing_parses_and_decodes() {
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assert_eq!(messages::opcode::SMSG_SET_FACTION_STANDING, 292);
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// Two slots: list 46 -> 3000, list 89 -> -6000 (standing is signed).
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let body = hx("020000002e000000b80b00005900000090e8ffff");
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let p = messages::parse_server(messages::opcode::SMSG_SET_FACTION_STANDING, &body).unwrap();
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match p {
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ServerPacket::SetFactionStanding { ref standings } => {
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assert_eq!(standings[..], [(46, 3000), (89, -6000)]);
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}
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_ => panic!("set faction standing"),
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}
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assert!(matches!(
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decode(p)[..],
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[SessionEvent::ReputationDelta { ref standings }]
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if standings[..] == [(46, 3000), (89, -6000)]
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));
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}
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/// An opcode with no parse arm decodes to `PacketDropped`, not silence, so the app can tally it.
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#[test]
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fn unknown_opcode_decodes_to_packet_dropped() {
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// Sentinel: SMSG_SET_REST_START (0x021E) has no parse arm; swap in another if it gains one.
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let packet = messages::parse_server(0x021E, &hx("0102030405")).unwrap();
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assert!(matches!(packet, ServerPacket::Other { opcode: 0x021E }));
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match decode(packet).as_slice() {
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[SessionEvent::PacketDropped {
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opcode: 0x021E,
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unparseable: false,
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}] => {}
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other => panic!("expected one PacketDropped event, got {other:?}"),
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}
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assert_eq!(messages::opcode_name(0x021E), Some("SMSG_SET_REST_START"));
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assert_eq!(
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messages::opcode_name(messages::opcode::SMSG_UPDATE_OBJECT),
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Some("SMSG_UPDATE_OBJECT")
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);
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assert_eq!(messages::opcode_name(0xFFFF), None);
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}
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#[test]
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fn death_arc_family_parses_and_decodes() {
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use benilla_protocol::messages::opcode;
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// Found: a dungeon corpse reports its entrance's map and coords, so the two maps differ.
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let mut body = vec![1u8];
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body.extend_from_slice(&0i32.to_le_bytes());
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body.extend_from_slice(&(-11209.6f32).to_le_bytes());
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body.extend_from_slice(&1666.54f32.to_le_bytes());
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body.extend_from_slice(&25.0f32.to_le_bytes());
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body.extend_from_slice(&36u32.to_le_bytes());
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let pkt = messages::parse_server(opcode::MSG_CORPSE_QUERY, &body).unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::CorpseQuery {
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found,
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display_map,
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position,
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corpse_map,
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}] => {
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assert!(found);
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assert_eq!(*display_map, 0);
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assert_eq!(*corpse_map, 36);
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assert_eq!(position[2], 25.0);
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}
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other => panic!("corpse query decode: {other:?}"),
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}
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// Not found, also sent unprompted when the corpse turns to bones: a lone u8 0.
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let pkt = messages::parse_server(opcode::MSG_CORPSE_QUERY, &[0u8]).unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::CorpseQuery { found: false, .. }] => {}
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other => panic!("corpse query not-found decode: {other:?}"),
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}
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let pkt = messages::parse_server(opcode::SMSG_CORPSE_RECLAIM_DELAY, &30_000u32.to_le_bytes())
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.unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::CorpseReclaimDelay { delay_ms: 30_000 }] => {}
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other => panic!("reclaim delay decode: {other:?}"),
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}
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// SMSG_RESURRECT_REQUEST, player caster: guid, u32 len 1, empty cstring, sickness 0, timer 1.
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let mut body = 0x2Au64.to_le_bytes().to_vec();
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body.extend_from_slice(&1u32.to_le_bytes());
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body.extend_from_slice(&[0, 0, 1]);
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let pkt = messages::parse_server(opcode::SMSG_RESURRECT_REQUEST, &body).unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::ResurrectRequest {
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caster: 0x2A,
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name,
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sickness: false,
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has_timer: true,
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}] => assert!(name.is_empty(), "player caster ⇒ empty wire name"),
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other => panic!("resurrect request decode: {other:?}"),
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}
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let pkt = messages::parse_server(
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opcode::SMSG_SPIRIT_HEALER_CONFIRM,
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&0xF130_0000_0000_2AB3u64.to_le_bytes(),
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)
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.unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::SpiritHealerConfirm {
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npc: 0xF130_0000_0000_2AB3,
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}] => {}
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other => panic!("spirit healer confirm decode: {other:?}"),
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}
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let body = hx("012a07000000"); // packed(0x2A) + counter 7
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for (op, mode, apply) in [
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(opcode::SMSG_FORCE_MOVE_ROOT, MoveMode::Root, true),
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(opcode::SMSG_FORCE_MOVE_UNROOT, MoveMode::Root, false),
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(opcode::SMSG_MOVE_WATER_WALK, MoveMode::WaterWalk, true),
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(opcode::SMSG_MOVE_LAND_WALK, MoveMode::WaterWalk, false),
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(opcode::SMSG_MOVE_FEATHER_FALL, MoveMode::FeatherFall, true),
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(opcode::SMSG_MOVE_NORMAL_FALL, MoveMode::FeatherFall, false),
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(opcode::SMSG_MOVE_SET_HOVER, MoveMode::Hover, true),
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(opcode::SMSG_MOVE_UNSET_HOVER, MoveMode::Hover, false),
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] {
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let pkt = messages::parse_server(op, &body).unwrap();
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match decode(pkt).as_slice() {
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[SessionEvent::MoveMode {
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guid: 0x2A,
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counter: 7,
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mode: got_mode,
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apply: got_apply,
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}] if *got_mode == mode && *got_apply == apply => {}
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other => panic!("move mode decode for opcode {op:#06x}: {other:?}"),
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}
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}
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// The movement-flag bits (vmangos `Objects/MovementInfo.h:25-62`).
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assert_eq!(MoveMode::Root.flag(), 0x0000_1000);
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assert_eq!(MoveMode::WaterWalk.flag(), 0x1000_0000);
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assert_eq!(MoveMode::FeatherFall.flag(), 0x2000_0000);
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assert_eq!(MoveMode::Hover.flag(), 0x4000_0000);
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// Root alone acks per direction, with no apply dword (vmangos `HandleMoveRootAck`).
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assert_eq!(
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MoveMode::Root.ack_opcode(true),
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opcode::CMSG_FORCE_MOVE_ROOT_ACK
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);
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assert_eq!(
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MoveMode::Root.ack_opcode(false),
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opcode::CMSG_FORCE_MOVE_UNROOT_ACK
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);
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assert!(!MoveMode::Root.ack_carries_apply());
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for mode in [MoveMode::WaterWalk, MoveMode::FeatherFall, MoveMode::Hover] {
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assert_eq!(
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mode.ack_opcode(true),
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mode.ack_opcode(false),
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"{mode:?}: one ack opcode both ways"
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);
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assert!(mode.ack_carries_apply(), "{mode:?}: ack carries apply");
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}
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}
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/// Root's ack lacks the trailing u32 apply the other modes carry (vmangos `Movement.cpp:38-59`).
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#[test]
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fn move_flag_ack_bodies_differ_by_the_apply_tail() {
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use benilla_protocol::messages::{move_flag_ack, MovementInfo};
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use benilla_protocol::wire::Vector3d;
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let info = MovementInfo {
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flags: 0,
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timestamp: 0x1122_3344,
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position: Vector3d {
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x: 1.0,
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y: 2.0,
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z: 3.0,
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},
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orientation: 0.5,
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transport: None,
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pitch: 0.0,
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fall_time: 0,
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jump: None,
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};
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let root = move_flag_ack(0x2A, 7, &info, None);
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let walk = move_flag_ack(0x2A, 7, &info, Some(true));
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assert_eq!(root.len() + 4, walk.len());
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assert_eq!(&walk[..root.len()], root.as_slice());
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assert_eq!(&walk[root.len()..], 1u32.to_le_bytes());
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// The ack's guid is full, not packed.
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assert_eq!(&root[..8], &0x2Au64.to_le_bytes());
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assert_eq!(&root[8..12], &7u32.to_le_bytes());
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}
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/// `SMSG_DURABILITY_DAMAGE_DEATH` (0x2BD): empty body; the cue for the 10% durability-loss line.
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#[test]
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fn durability_damage_death_is_an_empty_body_cue() {
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let pkt = messages::parse_server(messages::opcode::SMSG_DURABILITY_DAMAGE_DEATH, &[]).unwrap();
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assert!(matches!(pkt, ServerPacket::DurabilityDamageDeath));
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assert!(matches!(
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decode(pkt).as_slice(),
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[SessionEvent::DurabilityDamageDeath]
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));
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}
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/// u32 mapId, then u32 transportEntry + u32 oldMapId when the player rides a transport through
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/// (vmangos `Misc.cpp:493-501`).
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#[test]
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fn transfer_pending_both_shapes_and_abort_parse_and_decode() {
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let plain =
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messages::parse_server(messages::opcode::SMSG_TRANSFER_PENDING, &hx("01000000")).unwrap();
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assert!(matches!(
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plain,
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ServerPacket::TransferPending {
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map: 1,
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transport: None
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}
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));
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assert!(matches!(
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decode(plain).as_slice(),
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[SessionEvent::TransferPending {
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map_id: 1,
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transport_entry: None
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}]
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));
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// Riding: 176310 is the Menethil boat, arriving in EK (0) from Kalimdor (1).
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let mut riding = 0u32.to_le_bytes().to_vec();
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riding.extend_from_slice(&176310u32.to_le_bytes());
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riding.extend_from_slice(&1u32.to_le_bytes());
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let riding = messages::parse_server(messages::opcode::SMSG_TRANSFER_PENDING, &riding).unwrap();
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assert!(matches!(
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riding,
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ServerPacket::TransferPending {
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map: 0,
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transport: Some((176310, 1))
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}
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));
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assert!(matches!(
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decode(riding).as_slice(),
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[SessionEvent::TransferPending {
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map_id: 0,
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transport_entry: Some(176310)
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}]
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));
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let abort = messages::parse_server(messages::opcode::SMSG_TRANSFER_ABORTED, &[2]).unwrap();
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assert!(matches!(abort, ServerPacket::TransferAborted { reason: 2 }));
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assert!(matches!(
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decode(abort).as_slice(),
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[SessionEvent::TransferAborted { reason: 2 }]
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));
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}
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/// Packed mover guid then u8 allowMove (vmangos `Server/Packets/Misc.cpp:677-682`).
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#[test]
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fn client_control_update_reads_a_packed_mover_and_the_allow_byte() {
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// Grant: creature 0xF130000C1A00A2B4, allowMove 1. Mask 0xdb marks its non-zero LE bytes
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// (b4 a2 00 1a 0c 00 30 f1 → indices 0,1,3,4,6,7), which follow in order.
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let grant = hx("dbb4a21a0c30f101");
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match messages::parse_server(messages::opcode::SMSG_CLIENT_CONTROL_UPDATE, &grant).unwrap() {
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ServerPacket::ClientControlUpdate { mover, allow_move } => {
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assert_eq!(mover, 0xF130_000C_1A00_A2B4);
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assert!(allow_move);
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}
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other => panic!("client control update, got {}", other.name()),
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}
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// Revoke: our own guid 0x45, allowMove 0; vmangos never roots a mind-controlled player.
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let revoke = hx("014500");
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let revoke = messages::parse_server(messages::opcode::SMSG_CLIENT_CONTROL_UPDATE, &revoke)
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.expect("revoke parses");
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assert!(matches!(
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revoke,
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ServerPacket::ClientControlUpdate {
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mover: 0x45,
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allow_move: false
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}
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));
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assert!(matches!(
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decode(revoke).as_slice(),
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[SessionEvent::ClientControl {
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mover: 0x45,
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allow_move: false
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}]
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));
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// A zero guid packs to a lone zero mask byte, so the very next byte is allowMove.
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let empty = messages::parse_server(messages::opcode::SMSG_CLIENT_CONTROL_UPDATE, &hx("0001"))
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.expect("empty guid parses");
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assert!(matches!(
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empty,
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ServerPacket::ClientControlUpdate {
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mover: 0,
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allow_move: true
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}
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|
));
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}
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|
|
|
#[test]
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|
fn pet_feedback_family_parses_and_decodes() {
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use benilla_protocol::messages::opcode;
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|
|
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// 9 = PETTAME_TOOHIGHLEVEL.
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let p = messages::parse_server(opcode::SMSG_PET_TAME_FAILURE, &hx("09")).unwrap();
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assert!(matches!(p, ServerPacket::PetTameFailure { reason: 9 }));
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assert!(matches!(
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decode(p)[..],
|
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[SessionEvent::PetTameFailure { reason: 9 }]
|
|
));
|
|
// Reason to GlobalStrings key: the reference bounds `reason - 1` at 0xa (`0x6e6a20`).
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assert_eq!(messages::pet_tame_failure_key(1), "PETTAME_INVALIDCREATURE");
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assert_eq!(
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messages::pet_tame_failure_key(5),
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|
"PETTAME_ANOTHERSUMMONACTIVE"
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|
);
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assert_eq!(messages::pet_tame_failure_key(11), "PETTAME_NOTDEAD");
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// Out of range on either side, vmangos's 12th value included, falls to the default arm.
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assert_eq!(messages::pet_tame_failure_key(0), "PETTAME_UNKNOWNERROR");
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assert_eq!(messages::pet_tame_failure_key(12), "PETTAME_UNKNOWNERROR");
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assert_eq!(messages::pet_tame_failure_key(200), "PETTAME_UNKNOWNERROR");
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|
|
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// The reference reads no body here (vmangos writes none), so stray bytes change nothing.
|
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for body in ["", "deadbeef"] {
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let p = messages::parse_server(opcode::SMSG_PET_NAME_INVALID, &hx(body)).unwrap();
|
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assert!(matches!(p, ServerPacket::PetNameInvalid), "body {body:?}");
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assert!(matches!(decode(p)[..], [SessionEvent::PetNameInvalid]));
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|
|
|
let p = messages::parse_server(opcode::SMSG_PET_BROKEN, &hx(body)).unwrap();
|
|
assert!(matches!(p, ServerPacket::PetBroken), "body {body:?}");
|
|
assert!(matches!(decode(p)[..], [SessionEvent::PetBroken]));
|
|
}
|
|
|
|
// SMSG_PET_ACTION_SOUND: u64 guid then the u32 talk selector.
|
|
let body = hx("2a0000000000401001000000");
|
|
let p = messages::parse_server(opcode::SMSG_PET_ACTION_SOUND, &body).unwrap();
|
|
assert!(matches!(
|
|
p,
|
|
ServerPacket::PetActionSound {
|
|
pet_guid: 0x1040_0000_0000_002A,
|
|
talk: messages::PET_TALK_ATTACK,
|
|
}
|
|
));
|
|
assert!(matches!(
|
|
decode(p)[..],
|
|
[SessionEvent::PetActionSound {
|
|
pet_guid: 0x1040_0000_0000_002A,
|
|
talk: 1
|
|
}]
|
|
));
|
|
|
|
// SMSG_PET_DISMISS_SOUND: u32 CreatureModelData id then raw WoW x/y/z (the human start).
|
|
// The reference handler's +1.0 on z belongs to playback, not to the decode.
|
|
let mut body = hx("d6020000"); // model 726
|
|
for f in [-8949.95_f32, -132.493, 83.5312] {
|
|
body.extend_from_slice(&f.to_le_bytes());
|
|
}
|
|
let p = messages::parse_server(opcode::SMSG_PET_DISMISS_SOUND, &body).unwrap();
|
|
assert!(matches!(
|
|
p,
|
|
ServerPacket::PetDismissSound {
|
|
model_id: 726,
|
|
position: benilla_protocol::wire::Vector3d {
|
|
x: -8949.95,
|
|
y: -132.493,
|
|
z: 83.5312,
|
|
},
|
|
}
|
|
));
|
|
assert!(matches!(
|
|
decode(p)[..],
|
|
[SessionEvent::PetDismissSound {
|
|
model_id: 726,
|
|
position: [-8949.95, -132.493, 83.5312],
|
|
}]
|
|
));
|
|
}
|