Function UpdateLaraRoom

TombEngine/Game/Lara/lara.cpp:756–772

Offset values may be used to account for the quirk of room traversal only being able to occur at portals.

// Offset values may be used to account for the quirk of room traversal only being able to occur at portals.
bool UpdateLaraRoom(ItemInfo* item, int height, int xOffset, int zOffset)
{
	auto point = Geometry::TranslatePoint(item->Pose.Position, item->Pose.Orientation.y, zOffset, height, xOffset);

	// Hacky L-shaped Location traversal.
	item->Location = GetRoomVector(item->Location, point);
	item->Location = GetRoomVector(item->Location, Vector3i(item->Pose.Position.x, point.y, item->Pose.Position.z));
	item->Floor = GetSurfaceHeight(item->Location, item->Pose.Position.x, item->Pose.Position.z, true).value_or(NO_HEIGHT);

	if (item->RoomNumber != item->Location.RoomNumber)
	{
		ItemNewRoom(item->Index, item->Location.RoomNumber);
		return true;
	}

	return false;
}