Function lowerLand

src/OpenLoco/src/Ui/Windows/TerraForm.cpp:1421–1452

0x00468DFD

        // 0x00468DFD
        static uint32_t lowerLand(uint8_t flags)
        {
            uint32_t cost;
            if ((flags & 1))
            {
                Common::sub_4A69DD();
            }

            auto [pointA, pointB] = World::getMapSelectionArea();
            auto centre = (pointA + pointB) / 2;
            GameCommands::setErrorTitle(StringIds::error_cant_lower_land_here);

            if (isMountainMode)
            {
                GameCommands::LowerRaiseLandMountainArgs args{};
                args.centre = centre;
                args.pointA = pointA;
                args.pointB = pointB;
                args.adjustment = -1;
                cost = GameCommands::doCommand(args, flags);
            }
            else
            {
                GameCommands::LowerLandArgs args{};
                args.centre = centre;
                args.pointA = pointA;
                args.pointB = pointB;
                args.corner = World::getMapSelectionCorner();
                cost = GameCommands::doCommand(args, flags);
            }
            return cost;
        }

        // 0x00468D1D
        static uint32_t raiseLand(uint8_t flags)