Function paintSupportSW

src/OpenLoco/src/Paint/PaintBridge.cpp:831–888

0x0042C176

    // 0x0042C176
    static void paintSupportSW(PaintSession& session, const BridgeObject& bridgeObj, const BridgeEntry& bridgeEntry, const uint8_t pillarSpacing, int16_t lhsSupportLength, int16_t rhsSupportLength, const int16_t supportHeight, const uint32_t supportEdgeLhsImage, const uint32_t supportEdgeRhsImage)
    {
        if (pillarSpacing & (1U << 0))
        {
            auto lhsSupportHeight = supportHeight;
            while (lhsSupportLength >= 16)
            {
                const bool is16section = lhsSupportLength == 16 || ((lhsSupportHeight - 16) == session.getWaterHeight());
                const int16_t sectionHeight = is16section ? 16 : 32;
                const auto bbLength = is16section ? World::Pos3{ 32, 2, 15 } : World::Pos3{ 32, 2, 31 };
                const auto imageIndex = is16section ? Bridge::ImageIds::supportSegmentLhs16SW : Bridge::ImageIds::supportSegmentLhs32SW;

                lhsSupportLength -= sectionHeight;
                lhsSupportHeight -= sectionHeight;
                const auto supportSectionImage = bridgeEntry.imageBase.withIndex(bridgeObj.image).withIndexOffset(imageIndex);
                const auto heightOffset = World::Pos3{ 0, 0, lhsSupportHeight };
                constexpr World::Pos3 bbOffset = { 0, 0, 0 };
                session.addToPlotList4FD150(supportSectionImage, heightOffset, bbOffset + heightOffset, bbLength);
            }
            if (supportEdgeLhsImage != 0)
            {
                lhsSupportHeight -= 16;
                const auto image = bridgeEntry.imageBase.withIndex(bridgeObj.image).withIndexOffset(supportEdgeLhsImage);
                const auto heightOffset = World::Pos3{ 0, 0, lhsSupportHeight };
                constexpr World::Pos3 bbOffset = { 0, 0, 0 };
                constexpr World::Pos3 bbLength = { 32, 2, 14 };
                session.addToPlotList4FD150(image, heightOffset, bbOffset + heightOffset, bbLength);
            }
        }

        if (pillarSpacing & (1U << 1))
        {
            auto rhsSupportHeight = supportHeight;
            while (rhsSupportLength >= 16)
            {
                const bool is16section = rhsSupportLength == 16 || ((rhsSupportHeight - 16) == session.getWaterHeight());
                const int16_t sectionHeight = is16section ? 16 : 32;
                const auto bbLength = is16section ? World::Pos3{ 32, 2, 15 } : World::Pos3{ 32, 2, 31 };
                const auto imageIndex = is16section ? Bridge::ImageIds::supportSegmentRhs16SW : Bridge::ImageIds::supportSegmentRhs32SW;

                rhsSupportLength -= sectionHeight;
                rhsSupportHeight -= sectionHeight;
                const auto supportSectionImage = bridgeEntry.imageBase.withIndex(bridgeObj.image).withIndexOffset(imageIndex);
                const auto heightOffset = World::Pos3{ 0, 0, rhsSupportHeight };
                constexpr World::Pos3 bbOffset = { 0, 30, 0 };
                session.addToPlotList4FD150(supportSectionImage, heightOffset, bbOffset + heightOffset, bbLength);
            }
            if (supportEdgeRhsImage != 0)
            {
                rhsSupportHeight -= 16;
                const auto image = bridgeEntry.imageBase.withIndex(bridgeObj.image).withIndexOffset(supportEdgeRhsImage);
                const auto heightOffset = World::Pos3{ 0, 0, rhsSupportHeight };
                constexpr World::Pos3 bbOffset = { 0, 30, 0 };
                constexpr World::Pos3 bbLength = { 32, 2, 14 };
                session.addToPlotList4FD150(image, heightOffset, bbOffset + heightOffset, bbLength);
            }
        }
    }