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fix(transport): guard against untracked transport placing player at map origin

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When on-transport flag is set but the transport isn't tracked by
TransportManager, getPlayerWorldPosition() returns localOffset (a small
relative value) as a world position. This overwrites movementInfo with
near-zero coordinates, teleporting the player to map origin on Eastern
Kingdoms (Alterac/Hillsbrad area). Add transport existence checks in
sendMovement() and getComposedWorldPosition() before composing position.
This commit is contained in:
Kelsi 2026-04-05 16:01:14 -07:00
parent 910ba50c26
commit fe29ccad3f
3 changed files with 17 additions and 6 deletions
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6
src/game/game_handler.cpp
View file

@ -6587,7 +6587,11 @@ void GameHandler::mailMarkAsRead(uint32_t mailId) {
glm::vec3 GameHandler::getComposedWorldPosition() {
if (playerTransportGuid_ != 0 && transportManager_) {
return transportManager_->getPlayerWorldPosition(playerTransportGuid_, playerTransportOffset_);
auto* tr = transportManager_->getTransport(playerTransportGuid_);
if (tr) {
return transportManager_->getPlayerWorldPosition(playerTransportGuid_, playerTransportOffset_);
}
// Transport not tracked — fall through to normal position
}
// Not on transport, return normal movement position
return glm::vec3(movementInfo.x, movementInfo.y, movementInfo.z);

13
src/game/movement_handler.cpp
View file

@ -516,10 +516,15 @@ void MovementHandler::sendMovement(Opcode opcode) {
// Add transport data if player is on a server-recognized transport
if (includeTransportInWire) {
if (owner_.transportManager_) {
glm::vec3 composed = owner_.transportManager_->getPlayerWorldPosition(owner_.playerTransportGuid_, owner_.playerTransportOffset_);
movementInfo.x = composed.x;
movementInfo.y = composed.y;
movementInfo.z = composed.z;
auto* tr = owner_.transportManager_->getTransport(owner_.playerTransportGuid_);
if (tr) {
glm::vec3 composed = owner_.transportManager_->getPlayerWorldPosition(owner_.playerTransportGuid_, owner_.playerTransportOffset_);
movementInfo.x = composed.x;
movementInfo.y = composed.y;
movementInfo.z = composed.z;
}
// If transport not found, keep current movementInfo position —
// the localOffset fallback would place us near map origin (0,0,0).
}
movementInfo.flags |= static_cast<uint32_t>(MovementFlags::ONTRANSPORT);
movementInfo.transportGuid = owner_.playerTransportGuid_;

4
src/game/transport_manager.cpp
View file

@ -141,7 +141,9 @@ ActiveTransport* TransportManager::getTransport(uint64_t guid) {
glm::vec3 TransportManager::getPlayerWorldPosition(uint64_t transportGuid, const glm::vec3& localOffset) {
auto* transport = getTransport(transportGuid);
if (!transport) {
return localOffset; // Fallback
LOG_WARNING("getPlayerWorldPosition: transport 0x", std::hex, transportGuid, std::dec,
" not found — returning localOffset as-is (callers should guard)");
return localOffset;
}
if (transport->isM2) {