Function removeTrack

src/OpenLoco/src/GameCommands/Track/RemoveTrack.cpp:112–247

0x0049C7F2

    // 0x0049C7F2
    static currency32_t removeTrack(const TrackRemovalArgs& args, const uint8_t flags)
    {
        setExpenditureType(ExpenditureType::Construction);
        setPosition(args.pos + World::Pos3{ 16, 16, 0 });

        currency32_t totalRemovalCost = 0;

        auto* elTrack = getElTrackAt(args, flags, args.pos, args.index);
        if (elTrack == nullptr)
        {
            return kFailure;
        }

        if ((flags & Flags::ghost) == 0 && !sub_431E6A(elTrack->owner(), reinterpret_cast<World::TileElement*>(elTrack)))
        {
            return kFailure;
        }

        if (elTrack->hasSignal())
        {
            GameCommands::SignalRemovalArgs srArgs;
            srArgs.pos = args.pos;
            srArgs.rotation = args.rotation;
            srArgs.index = args.index;
            srArgs.trackId = args.trackId;
            srArgs.trackObjType = args.trackObjectId;
            srArgs.flags = 0;

            auto* elSignal = elTrack->next()->as<World::SignalElement>();
            if (elSignal != nullptr)
            {
                if (elSignal->getLeft().hasSignal())
                {
                    srArgs.flags |= 1U << 15;
                }
                if (elSignal->getRight().hasSignal())
                {
                    srArgs.flags |= 1U << 14;
                }
            }

            if (auto cost = GameCommands::doCommand(srArgs, flags); cost != kFailure)
            {
                totalRemovalCost += cost;
            }
            else
            {
                return kFailure;
            }
        }

        // Fetch track element again; signal removal above might have invalidated the pointer.
        elTrack = getElTrackAt(args, flags, args.pos, args.index);

        if (elTrack->hasStationElement())
        {
            GameCommands::TrainStationRemovalArgs tsArgs;
            tsArgs.pos = args.pos;