SamandClaude Fable 5
ac74c98c15
- knockback is a jump whose seed came off the wire, not a server spline: SMSG_MOVE_KNOCK_BACK's four floats are exactly the MovementInfo jump tail in a different order (speedZ down-positive — a rising launch carries a negative value, the sign vmangos's own source marvels at), flown at the same take-off site as the keyboard jump and acked with the post-launch pose, which the server matches float-for-float within 0.01 before relaying to anyone; it is the one take-off that seeds BOTH axes, absolute in world XY, so it skips the arm that would hand the momentum back to a held key and reduce the whole knockback to a hop; root refuses it silently, a seated player stands up first, no MSG_MOVE_JUMP goes out — that packet is the keyboard's, and vmangos logs a jump at knockback speed as an overspeed cheat — and MSG_MOVE_KNOCK_BACK turns out not to be dead: an observed knockback replays as the arc it is - your guild crest reaches your tabard: the three GuildEmblems layers — background, border, emblem, on both torso tiles — belong to no equipment slot, so the body composite never wrote those cells and every guild wore the Guild Tabard's own default art; the install is gated on a display flag only seven of 29,604 rows set, of which exactly one is worn by any item — which is why every battleground and Argent Dawn tabard keeps its own art; the five wire indices are signed, because an undesigned guild carries −1 in all five and the client refuses to paint on the first −1 (unguarded, the commonest guild state on a young realm would have worn a blank tabard); the emblem keys the skin cache, so two guilds in the same tabard display cannot lend each other crests; and a guild tabard's background hides the bra where a plain tabard does not — it is a cutout, 79.5% opaque off the shipped art, and what shows at the sides is bare skin - a fly-by is framed by the world camera, not the M2 camera record's fov: a census of every reader shows the record's fov and clip planes reach only the portrait and Model-frame paths — nothing on the cinematic path reads any of the three — so fifteen of the sixteen shipped shots were rendering at HALF their intended vertical FOV, visibly over-zoomed on every race intro but the Undead; the fix is a deletion, and it dissolves a standing puzzle: the authored 0.22 and 27.8-yard "clips", which would render the dwarf intro's mountains as empty sky, are not clips at all on this path — two floats nobody consumes look exactly like that - 104 of Onyxia's lava traps stood on an interior floor classified as outdoors, taking the day/night sun inside a windowless lair: a GameObject's light node anchors at its model's AUTHORED bounding-box centre, and the trap's box reaches 98.42 yd past its bind pose — the anchor sits ~40 yd under the chamber floor, where a downward ray finds nothing above it to claim; the reference recovers with a 1000-yd upward retry at the claim itself, which benilla had only at the colour sample, so the verdict was decided before any colour was read; all 104 now classify interior, beside the 26 rocks and 119 eggs that always did — and the drowned-corpse pose came back from its cross-check confirmed at the bytes (a strict liquid-depth test at exactly two-thirds of a yard, Dead or Drowned), with the two reference-side notes it contradicted corrected over there Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
598 lines
24 KiB
Rust
598 lines
24 KiB
Rust
//! Player-movement relay + teleport-ack wire tests: the `[packed guid][MovementInfo]` relay shape
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//! that rebroadcasts other players' `MSG_MOVE_*` locomotion (including the jump ballistic tail), and
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//! `MSG_MOVE_TELEPORT_ACK`'s server-form pose. Split out of the former `tests/messages.rs` — see
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//! `tests/common` for the shared fixtures and methodology note.
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mod common;
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use benilla_protocol::events::{decode, SessionEvent};
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use benilla_protocol::messages::{self, MovementInfo, TransportPose};
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use benilla_protocol::wire::{write_packed_guid, Vector3d};
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use benilla_protocol::ServerPacket;
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use common::hx;
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#[test]
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fn movement_relay_decodes_to_unit_move() {
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// A relayed player move: [packed mover guid][MovementInfo]. Packed guid 0xAA = mask 0x01 + byte
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// 0xAA; the MovementInfo body is the same 28-byte FORWARD info pinned in `client_bodies_golden`
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// (flags 0x1, time, pos, orientation 1.25, fall_time). The server rebroadcasts with the mover's
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// opcode — here MSG_MOVE_START_FORWARD — which is how another player's walking reaches us.
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let body = hx("01aa0100000004030201cdd70bc6357e04c3f90fa7420000a03f00000000");
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match messages::parse_server(messages::opcode::MSG_MOVE_START_FORWARD, &body).unwrap() {
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ServerPacket::PlayerMove {
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guid,
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opcode,
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flags,
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position,
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orientation,
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jump,
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..
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} => {
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assert_eq!(guid, 0xAA);
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assert_eq!(opcode, messages::opcode::MSG_MOVE_START_FORWARD);
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assert_eq!(flags, 0x1);
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assert_eq!(
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(position.x, position.y, position.z),
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(-8949.95, -132.493, 83.5312)
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);
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assert_eq!(orientation, 1.25);
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assert_eq!(jump, None, "a non-jumping relay carries no jump tail");
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}
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p => panic!("expected PlayerMove, got {}", p.name()),
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}
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// The whole relay family routes through the same body shape — spot-check a couple more opcodes and
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// the fan-out into a SessionEvent the ECS consumes.
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for op in [
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messages::opcode::MSG_MOVE_HEARTBEAT,
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messages::opcode::MSG_MOVE_SET_FACING,
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messages::opcode::MSG_MOVE_STOP,
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] {
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let events = decode(messages::parse_server(op, &body).unwrap());
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assert!(
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matches!(
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events.as_slice(),
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[SessionEvent::UnitMove {
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guid: 0xAA,
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orientation,
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flags: 0x1,
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..
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}] if *orientation == 1.25
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),
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"opcode {op:#06x} should decode to one UnitMove, got {events:?}"
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);
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}
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}
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#[test]
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fn jump_relay_round_trips_the_ballistic_tail() {
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// A jumping MovementInfo (JUMPING 0x2000 | FORWARD) carries the ballistic launch tail. Round-trip it
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// through write → parse to pin the wire layout: `fall_time` is a u32 (ms), and the jump tail order is
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// `zspeed, cosAngle, sinAngle, xyspeed` — cos *before* sin (VERIFIED vmangos `MovementInfo::Read`).
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let mi = MovementInfo {
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flags: 0x2000 | 0x1,
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timestamp: 0x0102_0304,
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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, // not on a transport — no transport tail is written
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pitch: 0.0, // not swimming — no pitch tail is written
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fall_time: 250,
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jump: Some(messages::JumpInfo {
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zspeed: 7.955_547,
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cos_angle: 0.25,
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sin_angle: 0.75,
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xy_speed: 7.0,
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}),
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};
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let mut body = hx("01aa"); // [packed guid 0xAA][MovementInfo] — the relay shape.
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body.extend_from_slice(&messages::movement(&mi));
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match messages::parse_server(messages::opcode::MSG_MOVE_JUMP, &body).unwrap() {
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ServerPacket::PlayerMove {
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flags,
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fall_time,
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jump,
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..
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} => {
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assert_eq!(flags, 0x2001);
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assert_eq!(fall_time, 250, "fall_time is a u32 ms count, not an f32");
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let j = jump.expect("a JUMPING relay carries the ballistic tail");
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assert_eq!(j.zspeed, 7.955_547);
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assert_eq!(
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j.cos_angle, 0.25,
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"cosAngle is the 2nd jump float (before sin)"
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);
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assert_eq!(j.sin_angle, 0.75, "sinAngle is the 3rd jump float");
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assert_eq!(j.xy_speed, 7.0);
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}
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p => panic!("expected PlayerMove, got {}", p.name()),
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}
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}
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/// A relayed rider on a transport: `MOVEFLAG_ON_TRANSPORT | MOVEFLAG_SWIMMING | MOVEFLAG_JUMPING` all
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/// set, so the transport pose, swim pitch, `fall_time`, and jump tail all ride the same packet — the
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/// exact regression the old discard comment warned about (`messages/movement.rs`'s prior "the
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/// transport ... tail is parsed to stay aligned but discarded"): a wrong transport-tail length would
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/// misalign every tail after it. `write()` never serializes a transport tail (benilla doesn't set the
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/// flag outbound — riding is decision 0438 phase 2), so this fixture is hand-built to the exact byte
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/// order `read_movement_info` implements.
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#[test]
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fn movement_relay_surfaces_transport_pose_and_keeps_the_rest_aligned() {
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// An elevator (HIGH_TRANSPORT, 0xF120): template entry 900, DB spawn low guid 4242 — the standard
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// entry layout (guid.rs `entry()`).
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let transport_guid: u64 = 4242 | (900u64 << 24) | (0xF120u64 << 48);
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let mut body = Vec::new();
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write_packed_guid(0xAA, &mut body).unwrap(); // mover guid
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let flags: u32 = 0x0200_0000 | 0x20_0000 | 0x2000 | 0x1; // ON_TRANSPORT | SWIMMING | JUMPING | FORWARD
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body.extend_from_slice(&flags.to_le_bytes());
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body.extend_from_slice(&0x1122_3344u32.to_le_bytes()); // timestamp
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body.extend_from_slice(&10.0f32.to_le_bytes()); // position.x
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body.extend_from_slice(&20.0f32.to_le_bytes()); // position.y
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body.extend_from_slice(&30.0f32.to_le_bytes()); // position.z
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body.extend_from_slice(&0.75f32.to_le_bytes()); // orientation
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body.extend_from_slice(&transport_guid.to_le_bytes()); // ON_TRANSPORT tail: FULL u64 guid
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body.extend_from_slice(&1.0f32.to_le_bytes()); // local x
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body.extend_from_slice(&2.0f32.to_le_bytes()); // local y
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body.extend_from_slice(&3.0f32.to_le_bytes()); // local z
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body.extend_from_slice(&0.5f32.to_le_bytes()); // local o
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body.extend_from_slice(&(-0.3f32).to_le_bytes()); // SWIMMING tail: pitch
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body.extend_from_slice(&999u32.to_le_bytes()); // fall_time (u32 — must land right after pitch)
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body.extend_from_slice(&7.9f32.to_le_bytes()); // JUMPING tail: zspeed
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body.extend_from_slice(&0.6f32.to_le_bytes()); // cos_angle
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body.extend_from_slice(&0.8f32.to_le_bytes()); // sin_angle
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body.extend_from_slice(&5.0f32.to_le_bytes()); // xy_speed
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let want_transport = TransportPose {
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guid: transport_guid,
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pos: 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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};
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match messages::parse_server(messages::opcode::MSG_MOVE_HEARTBEAT, &body).unwrap() {
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ServerPacket::PlayerMove {
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orientation,
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transport,
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fall_time,
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jump,
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..
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} => {
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assert_eq!(
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orientation, 0.75,
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"position/orientation land before the tail, unaffected"
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);
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assert_eq!(
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transport,
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Some(want_transport),
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"the ON_TRANSPORT tail surfaces as the rider's local pose"
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);
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assert_eq!(
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fall_time, 999,
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"fall_time still lands right after the transport + swim-pitch tails"
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);
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let j =
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jump.expect("the jump tail still parses after the transport/pitch/fall_time run");
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assert_eq!(j.zspeed, 7.9);
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assert_eq!(j.cos_angle, 0.6);
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assert_eq!(j.sin_angle, 0.8);
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assert_eq!(j.xy_speed, 5.0);
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}
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p => panic!("expected PlayerMove, got {}", p.name()),
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}
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// The same fixture through the SessionEvent fan-out: UnitMove carries the same transport pose and
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// the same post-tail fields.
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let events =
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decode(messages::parse_server(messages::opcode::MSG_MOVE_HEARTBEAT, &body).unwrap());
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match events.as_slice() {
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[SessionEvent::UnitMove {
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transport,
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fall_time,
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jump,
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..
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}] => {
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assert_eq!(transport, &Some(want_transport));
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assert_eq!(*fall_time, 999);
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assert!(jump.is_some());
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}
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other => panic!("expected one UnitMove, got {other:?}"),
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}
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}
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#[test]
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fn teleport_ack_parses_pose() {
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// MSG_MOVE_TELEPORT_ACK (server→client form): [packed guid][counter u32][MovementInfo]. Exercises
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// the refactored read_movement_info (non-transport path) end to end.
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let body = hx("01aa070000000100000004030201cdd70bc6357e04c3f90fa7420000a03f00000000");
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match messages::parse_server(messages::opcode::MSG_MOVE_TELEPORT_ACK, &body).unwrap() {
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ServerPacket::Teleport {
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guid,
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counter,
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position,
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orientation,
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} => {
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assert_eq!(guid, 0xAA);
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assert_eq!(counter, 7);
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assert_eq!(
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(position.x, position.y, position.z),
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(-8949.95, -132.493, 83.5312)
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);
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assert_eq!(orientation, 1.25);
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}
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p => panic!("expected Teleport, got {}", p.name()),
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}
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}
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/// The force-speed-change family, byte-exact both directions (a new wire body never lands without
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/// a golden — method): the SMSG body is `[packed guid][u32 counter][f32 speed]` (vmangos
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/// `SendSpeedChangeToController`, 5875 branch), and the ACK body is `[u64 FULL guid][u32 counter]
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/// [MovementInfo][f32 speed]` (`MoveSpeedAck::ReadFromWorldPacket` — a plain `ObjectGuid`
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/// extraction is a raw u64, `ObjectGuid.cpp:180`, NOT packed like the SMSG's).
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#[test]
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fn force_speed_change_parses_and_ack_body_golden() {
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use benilla_protocol::messages::SpeedKind;
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// SMSG_FORCE_RUN_SPEED_CHANGE: packed guid 8 (mask 0x01, one byte), counter 7, speed 14.0.
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let body = hx("01080700000000006041");
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let packet =
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messages::parse_server(messages::opcode::SMSG_FORCE_RUN_SPEED_CHANGE, &body).unwrap();
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match &packet {
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ServerPacket::ForceSpeedChange {
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guid: 8,
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kind: SpeedKind::Run,
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counter: 7,
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speed,
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} => assert_eq!(*speed, 14.0),
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_ => panic!("expected ForceSpeedChange (run, guid 8, counter 7)"),
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}
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match decode(packet).as_slice() {
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[SessionEvent::ForceSpeedChange {
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guid: 8,
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kind: SpeedKind::Run,
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counter: 7,
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speed,
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}] => assert_eq!(*speed, 14.0),
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other => panic!("expected one ForceSpeedChange event, got {other:?}"),
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}
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// Every kind maps to its own SMSG opcode (the walk/swim-back/turn-rate trio lives in the
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// 730-735 block, not the 226-231 run).
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for (op, kind) in [
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(
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messages::opcode::SMSG_FORCE_WALK_SPEED_CHANGE,
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SpeedKind::Walk,
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),
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(
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messages::opcode::SMSG_FORCE_SWIM_SPEED_CHANGE,
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SpeedKind::Swim,
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),
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(
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messages::opcode::SMSG_FORCE_TURN_RATE_CHANGE,
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SpeedKind::TurnRate,
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),
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] {
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match messages::parse_server(op, &body).unwrap() {
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ServerPacket::ForceSpeedChange { kind: k, .. } => assert_eq!(k, kind),
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_ => panic!("expected ForceSpeedChange for opcode {op:#06x}"),
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}
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}
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// The ACK body golden: full 8-byte guid, counter, a stationary MovementInfo (flags 0 => no
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// conditional tails), then the echoed speed.
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let info = MovementInfo {
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flags: 0,
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timestamp: 12345,
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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: 42,
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jump: None,
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};
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assert_eq!(
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messages::force_speed_ack(8, 7, &info, 14.0),
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hx("08000000000000000700000000000000393000000000803f00000040000040400000003f2a00000000006041"),
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"CMSG_FORCE_*_SPEED_CHANGE_ACK body"
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);
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// The ack opcode per kind — the run ack is 227, the walk ack lives in the high block (731).
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assert_eq!(SpeedKind::Run.ack_opcode(), 0x00E3);
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assert_eq!(SpeedKind::Walk.ack_opcode(), 0x02DB);
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assert_eq!(SpeedKind::TurnRate.ack_opcode(), 0x02DF);
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}
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/// **The knockback handshake, byte-exact both ways** (decision 1702).
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///
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/// The two halves are one test because the second is only correct *relative to* the first: the ack's
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/// jump tail has to be the arriving quad, and the two packets order those same four floats
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/// differently. `SMSG_MOVE_KNOCK_BACK` is direction-first (`vcos, vsin, speedXY, speedZ`); the
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/// `MovementInfo` jump tail is `zspeed, cos, sin, xyspeed`. Read one in the other's order and every
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/// field is still a plausible float, the arc flies off at a wrong angle, and
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/// `FindPendingMovementKnockbackChange` rejects the ack — so this is exactly the transposition a
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/// type alone cannot catch.
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///
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/// `speedZ` is negative here because it is **down-positive**: this is a knockback that throws the
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/// body *upward* at 12 yd/s (wow-re: `0x7c61f0` stores the wire value verbatim into the same
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/// `CMovement+0xa0` a land jump seeds with `0xc0fe93d8` = −7.955547).
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#[test]
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fn knock_back_parses_and_ack_body_golden() {
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// packed guid 8 (mask 0x01, one byte), counter 7, then vcos 0.6, vsin 0.8, speedXY 25, speedZ −12.
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let body = hx("0108070000009a99193fcdcc4c3f0000c841000040c1");
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let packet = messages::parse_server(messages::opcode::SMSG_MOVE_KNOCK_BACK, &body).unwrap();
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let launch = match &packet {
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ServerPacket::KnockBack {
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guid: 8,
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counter: 7,
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launch,
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} => *launch,
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other => panic!(
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"expected KnockBack (guid 8, counter 7), got {}",
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other.name()
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),
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};
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assert_eq!(launch.cos_angle, 0.6, "first float on the wire is vcos");
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assert_eq!(launch.sin_angle, 0.8, "second is vsin");
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assert_eq!(launch.xy_speed, 25.0, "third is the horizontal speed");
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assert_eq!(
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launch.zspeed, -12.0,
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"fourth is speedZ, down-positive — negative throws the body up"
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);
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match decode(packet).as_slice() {
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[SessionEvent::KnockBack {
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guid: 8,
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counter: 7,
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launch: got,
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}] => assert_eq!(*got, launch),
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other => panic!("expected one KnockBack event, got {other:?}"),
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}
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// The ACK body golden: a **full** 8-byte guid (packed on the way in, never on the way out), the
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// echoed counter, and a `MovementInfo` carrying `MOVEFLAG_JUMPING` (0x2000) — without which the
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// jump tail is not serialized at all and the server has nothing to match against.
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let info = MovementInfo {
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flags: 0x2000,
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timestamp: 12345,
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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: Some(launch),
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};
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assert_eq!(
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messages::knock_back_ack(8, 7, &info),
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hx("08000000000000000700000000200000393000000000803f00000040000040400000003f00000000000040c19a99193fcdcc4c3f0000c841"),
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"CMSG_MOVE_KNOCK_BACK_ACK body"
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);
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assert_eq!(messages::opcode::SMSG_MOVE_KNOCK_BACK, 0x00EF);
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assert_eq!(messages::opcode::CMSG_MOVE_KNOCK_BACK_ACK, 0x00F0);
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}
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/// **Somebody else's knockback reaches us, and replays as an arc** (decision 1702, correcting
|
||
/// decision 0277's "no observer-side knockback signal exists in 1.12 at all").
|
||
///
|
||
/// `MSG_MOVE_KNOCK_BACK` is an ordinary `[packed guid][MovementInfo]` relay with the launch quad
|
||
/// appended — and the appendix is redundant by construction, because the server builds that
|
||
/// `MovementInfo` from the victim's own ack, whose jump tail already carries the quad. So the
|
||
/// trailing four floats go unread and the arc still replays: this test's assertion is that the tail
|
||
/// the reader *does* reach is the launch, not that the packet was consumed to the last byte.
|
||
#[test]
|
||
fn an_observed_knockback_relays_the_arc() {
|
||
// packed guid 0xAA, a JUMPING MovementInfo whose tail is (zspeed −12, cos 0.6, sin 0.8, xy 25),
|
||
// then the same quad again in the SMSG's own direction-first order.
|
||
let body = hx("01aa00200000393000000000803f00000040000040400000003f00000000000040c19a99193fcdcc4c3f0000c8419a99193fcdcc4c3f0000c841000040c1");
|
||
let packet = messages::parse_server(messages::opcode::MSG_MOVE_KNOCK_BACK, &body).unwrap();
|
||
match &packet {
|
||
ServerPacket::PlayerMove {
|
||
guid: 0xAA,
|
||
flags: 0x2000,
|
||
jump: Some(j),
|
||
..
|
||
} => {
|
||
assert_eq!(j.zspeed, -12.0, "the relayed arc rises, down-positive");
|
||
assert_eq!((j.cos_angle, j.sin_angle, j.xy_speed), (0.6, 0.8, 25.0));
|
||
}
|
||
other => panic!("expected a relayed PlayerMove, got {}", other.name()),
|
||
}
|
||
match decode(packet).as_slice() {
|
||
[SessionEvent::UnitMove { guid: 0xAA, .. }] => {}
|
||
other => panic!("expected one UnitMove event, got {other:?}"),
|
||
}
|
||
assert_eq!(messages::opcode::MSG_MOVE_KNOCK_BACK, 0x00F1);
|
||
}
|
||
|
||
/// The OBSERVER speed legs, byte-exact (decision 0441 — how an observed unit's mounted speed
|
||
/// reaches us; no counter, no ack on either): `SMSG_SPLINE_SET_*_SPEED` is `[packed guid]
|
||
/// [f32 speed]` (vmangos `SendSpeedChangeToAll` + the mid-spline observer branch), and
|
||
/// `MSG_MOVE_SET_*_SPEED` is `[packed guid][MovementInfo][f32 speed]`
|
||
/// (`SendSpeedChangeToObservers`, finalized branch) — a speed change AND a fresh pose, decoding
|
||
/// to a `UnitMove` + `SpeedChanged` pair.
|
||
#[test]
|
||
fn observer_speed_legs_parse_golden() {
|
||
use benilla_protocol::messages::SpeedKind;
|
||
|
||
// SMSG_SPLINE_SET_RUN_SPEED: packed guid 0xAA (mask 0x01, one byte), speed 14.0.
|
||
let body = hx("01aa00006041");
|
||
let packet =
|
||
messages::parse_server(messages::opcode::SMSG_SPLINE_SET_RUN_SPEED, &body).unwrap();
|
||
match &packet {
|
||
ServerPacket::SplineSpeedChange {
|
||
guid: 0xAA,
|
||
kind: SpeedKind::Run,
|
||
speed,
|
||
} => assert_eq!(*speed, 14.0),
|
||
p => panic!(
|
||
"expected SplineSpeedChange (run, guid 0xAA), got {}",
|
||
p.name()
|
||
),
|
||
}
|
||
match decode(packet).as_slice() {
|
||
[SessionEvent::SpeedChanged {
|
||
guid: 0xAA,
|
||
kind: SpeedKind::Run,
|
||
speed,
|
||
}] => assert_eq!(*speed, 14.0),
|
||
other => panic!("expected one SpeedChanged event, got {other:?}"),
|
||
}
|
||
// Each kind maps to its own opcode — spot-check the walk (769) and swim-back (770) slots,
|
||
// whose order differs from the FORCE family's.
|
||
for (op, kind) in [
|
||
(
|
||
messages::opcode::SMSG_SPLINE_SET_WALK_SPEED,
|
||
SpeedKind::Walk,
|
||
),
|
||
(
|
||
messages::opcode::SMSG_SPLINE_SET_SWIM_BACK_SPEED,
|
||
SpeedKind::SwimBack,
|
||
),
|
||
] {
|
||
match messages::parse_server(op, &body).unwrap() {
|
||
ServerPacket::SplineSpeedChange { kind: k, .. } => assert_eq!(k, kind),
|
||
p => panic!("expected SplineSpeedChange for {op:#06x}, got {}", p.name()),
|
||
}
|
||
}
|
||
|
||
// MSG_MOVE_SET_RUN_SPEED: [packed guid 0xAA][the shared 28-byte FORWARD MovementInfo golden]
|
||
// [speed 14.0] — decodes to the pose + the speed, in one drain.
|
||
let body = hx("01aa0100000004030201cdd70bc6357e04c3f90fa7420000a03f0000000000006041");
|
||
let packet = messages::parse_server(messages::opcode::MSG_MOVE_SET_RUN_SPEED, &body).unwrap();
|
||
match &packet {
|
||
ServerPacket::MoveSetSpeed {
|
||
guid: 0xAA,
|
||
kind: SpeedKind::Run,
|
||
flags: 0x1,
|
||
orientation,
|
||
speed,
|
||
..
|
||
} => {
|
||
assert_eq!(*orientation, 1.25);
|
||
assert_eq!(*speed, 14.0);
|
||
}
|
||
p => panic!("expected MoveSetSpeed (run, guid 0xAA), got {}", p.name()),
|
||
}
|
||
match decode(packet).as_slice() {
|
||
[SessionEvent::UnitMove {
|
||
guid: 0xAA,
|
||
flags: 0x1,
|
||
position,
|
||
..
|
||
}, SessionEvent::SpeedChanged {
|
||
guid: 0xAA,
|
||
kind: SpeedKind::Run,
|
||
speed,
|
||
}] => {
|
||
assert_eq!(position, &[-8949.95, -132.493, 83.5312]);
|
||
assert_eq!(*speed, 14.0);
|
||
}
|
||
other => panic!("expected UnitMove + SpeedChanged, got {other:?}"),
|
||
}
|
||
|
||
// SMSG_MOUNTRESULT / SMSG_DISMOUNTRESULT: one u32 code (OK = 10 / 3).
|
||
match decode(
|
||
messages::parse_server(messages::opcode::SMSG_MOUNTRESULT, &hx("0a000000")).unwrap(),
|
||
)
|
||
.as_slice()
|
||
{
|
||
[SessionEvent::MountResult {
|
||
mount: true,
|
||
code: 10,
|
||
}] => {}
|
||
other => panic!("expected MountResult(mount, 10), got {other:?}"),
|
||
}
|
||
match decode(
|
||
messages::parse_server(messages::opcode::SMSG_DISMOUNTRESULT, &hx("03000000")).unwrap(),
|
||
)
|
||
.as_slice()
|
||
{
|
||
[SessionEvent::MountResult {
|
||
mount: false,
|
||
code: 3,
|
||
}] => {}
|
||
other => panic!("expected MountResult(dismount, 3), got {other:?}"),
|
||
}
|
||
|
||
// SMSG_MOUNTSPECIAL_ANIM: one raw u64 guid, NOT packed (vmangos
|
||
// `HandleMountSpecialAnimOpcode` writes `data << GetObjectGuid()` — full 8 bytes).
|
||
match decode(
|
||
messages::parse_server(
|
||
messages::opcode::SMSG_MOUNTSPECIAL_ANIM,
|
||
&hx("0400000000000040"),
|
||
)
|
||
.unwrap(),
|
||
)
|
||
.as_slice()
|
||
{
|
||
[SessionEvent::MountSpecial {
|
||
guid: 0x4000_0000_0000_0004,
|
||
}] => {}
|
||
other => panic!("expected MountSpecial(player 4), got {other:?}"),
|
||
}
|
||
}
|
||
|
||
/// `SMSG_COMPRESSED_MOVES` — the batch carrier vmangos switches a session onto once it has been
|
||
/// sent 300 movement packets in ten seconds (decision 0624). The fixture is built exactly as
|
||
/// `MovementData::AddPacket` + `BuildPacket` do: `[u32 uncompressed size][zlib(records)]`, each
|
||
/// record `[u8 size][u16 opcode][body]` with `size` counting the opcode's two bytes. The two
|
||
/// records carry the same relay bodies pinned by `movement_relay_decodes_to_unit_move` above, so
|
||
/// what this adds is the *framing* — that a batched move decodes identically to a loose one.
|
||
#[test]
|
||
fn compressed_moves_unwraps_to_the_same_events_as_loose_relays() {
|
||
let body = hx("42000000780153d8cac0b88a91818181859989f1ec75ee63a6752c877ff22f77626058600f146650b805540062602a38005600002f2610d9");
|
||
let events =
|
||
decode(messages::parse_server(messages::opcode::SMSG_COMPRESSED_MOVES, &body).unwrap());
|
||
|
||
// Both records, in wire order, as ordinary moves — order is load-bearing: the remote-replay
|
||
// queue reconstructs a mover's arc from it (decision 0618).
|
||
match events.as_slice() {
|
||
[SessionEvent::UnitMove {
|
||
guid: 0xAA,
|
||
flags: 0x1,
|
||
..
|
||
}, SessionEvent::UnitMove {
|
||
guid: 0xAA,
|
||
flags: 0x0,
|
||
..
|
||
}] => {}
|
||
other => panic!(
|
||
"expected the moving then the idle relay for mover 0xAA, in that order, got {other:?}"
|
||
),
|
||
}
|
||
|
||
// A batched move must be byte-identical to the same move arriving loose.
|
||
let loose = decode(
|
||
messages::parse_server(
|
||
messages::opcode::MSG_MOVE_START_FORWARD,
|
||
&hx("01aa0100000004030201cdd70bc6357e04c3f90fa7420000a03f00000000"),
|
||
)
|
||
.unwrap(),
|
||
);
|
||
assert_eq!(format!("{:?}", events[0]), format!("{:?}", loose[0]));
|
||
}
|
||
|
||
/// A misframed batch must fail **loudly** (one `Poll::Skipped` naming the inner opcode), never
|
||
/// silently drop the moves it carries — the exact silence that made the runaway unattributable for
|
||
/// three rounds of fixes (decision 0624).
|
||
#[test]
|
||
fn a_misframed_batch_errors_rather_than_dropping_moves() {
|
||
// A HEARTBEAT record claiming a 40-byte body with only 4 bytes left in the stream.
|
||
let truncated = hx("070000007801d37ac700020006c10119");
|
||
assert!(messages::parse_server(messages::opcode::SMSG_COMPRESSED_MOVES, &truncated).is_err());
|
||
|
||
// A record whose size (1) cannot even hold the opcode that follows it — misframing, not an
|
||
// empty-body packet, and it must not underflow into a huge body length.
|
||
let undersized = hx("030000007801637cc7000001e200f0");
|
||
assert!(messages::parse_server(messages::opcode::SMSG_COMPRESSED_MOVES, &undersized).is_err());
|
||
}
|