Function CreateNormalPaintStruct

src/openrct2/paint/Paint.cpp:177–223

* Extracted from 0x0098196c, 0x0098197c, 0x0098198c, 0x0098199c */

 * Extracted from 0x0098196c, 0x0098197c, 0x0098198c, 0x0098199c
 */
static PaintStruct* CreateNormalPaintStruct(
    PaintSession& session, ImageId image_id, const CoordsXYZ& offset, const BoundBoxXYZ& boundBox)
{
    auto* const g1 = GfxGetG1Element(image_id);
    if (g1 == nullptr)
    {
        return nullptr;
    }

    const auto swappedRotation = DirectionFlipXAxis(session.CurrentRotation);
    auto swappedRotCoord = CoordsXYZ{ offset.Rotate(swappedRotation), offset.z };
    swappedRotCoord += session.SpritePosition;

    const auto imagePos = Translate3DTo2DWithZ(session.CurrentRotation, swappedRotCoord);

    if (!imageWithinRT(imagePos, *g1, session.rt))
    {
        return nullptr;
    }

    const auto rotBoundBoxOffset = CoordsXYZ{ boundBox.offset.Rotate(swappedRotation), boundBox.offset.z };
    const auto rotBoundBoxSize = RotateBoundBoxSize(boundBox.length, session.CurrentRotation);

    auto* ps = session.AllocateNormalPaintEntry();
    if (ps == nullptr)
    {
        return nullptr;
    }

    ps->image_id = image_id;
    ps->ScreenPos = imagePos;
    ps->Bounds.x_end = rotBoundBoxSize.x + rotBoundBoxOffset.x + session.SpritePosition.x;
    ps->Bounds.y_end = rotBoundBoxSize.y + rotBoundBoxOffset.y + session.SpritePosition.y;
    ps->Bounds.z_end = rotBoundBoxSize.z + rotBoundBoxOffset.z;
    ps->Bounds.x = rotBoundBoxOffset.x + session.SpritePosition.x;
    ps->Bounds.y = rotBoundBoxOffset.y + session.SpritePosition.y;
    ps->Bounds.z = rotBoundBoxOffset.z;
    ps->Attached = nullptr;
    ps->Children = nullptr;
    ps->NextQuadrantEntry = nullptr;
    ps->InteractionItem = session.InteractionType;
    ps->MapPos = session.MapPosition;
    ps->Element = session.CurrentlyDrawnTileElement;
    ps->Entity = session.CurrentlyDrawnEntity;

    return ps;
}

static PaintStruct* CreateNormalPaintStructHeight(
    PaintSession& session, const ImageId imageId, const int32_t height, const CoordsXYZ& offset, const BoundBoxXYZ& boundBox)