Function getQuadrantFromPos

src/OpenLoco/src/Map/MapSelection.cpp:238–250

0x0045FE05 NOTE: Original call getSurfaceLocFromUi within this function instead OpenLoco has split it in two. Also note that result of original was a Pos2 start i.e. (& 0xFFE0) both components

    // instead OpenLoco has split it in two. Also note that result of original
    // was a Pos2 start i.e. (& 0xFFE0) both components
    MapSelectionType getQuadrantFromPos(const Pos2& loc)
    {
        const auto xNibble = loc.x & 0x1F;
        const auto yNibble = loc.y & 0x1F;
        if (xNibble > 16)
        {
            return (yNibble >= 16) ? MapSelectionType::corner0 : MapSelectionType::corner1;
        }
        else
        {
            return (yNibble >= 16) ? MapSelectionType::corner3 : MapSelectionType::corner2;
        }
    }

    // 0x0045FE4C
    // NOTE: Original call getSurfaceLocFromUi within this function