Function PaintSessionAddPSToQuadrant

src/openrct2/paint/Paint.cpp:94–107

}

static void PaintSessionAddPSToQuadrant(PaintSession& session, PaintStruct* ps)
{
    const auto positionHash = RemapPositionToQuadrant(*ps, session.CurrentRotation);

    // Values below zero or above MaxPaintQuadrants are void, corners also share the same quadrant as void.
    const uint32_t paintQuadrantIndex = std::clamp(positionHash / kCoordsXYStep, 0, MaxPaintQuadrants - 1);

    ps->QuadrantIndex = paintQuadrantIndex;
    ps->NextQuadrantEntry = session.Quadrants[paintQuadrantIndex];
    session.Quadrants[paintQuadrantIndex] = ps;

    session.QuadrantBackIndex = std::min(session.QuadrantBackIndex, paintQuadrantIndex);
    session.QuadrantFrontIndex = std::max(session.QuadrantFrontIndex, paintQuadrantIndex);
}

static constexpr bool imageWithinRT(const ScreenCoordsXY& imagePos, const G1Element& g1, const RenderTarget& rt)
{