GMengerSponge.h

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#pragma once
 
#include "Actor/Geometry/Geometry.h"
#include "SDL/sdl_interface.h"
 
#include <Common/primitive_type.h>
 
namespace ph
{
 
class GCuboid;
 
class GMengerSponge final : public Geometry
{
public:
    GMengerSponge();
    explicit GMengerSponge(uint32 numIteration);
 
    void storeCooked(
        CookedGeometry& out_geometry,
        const CookingContext& ctx) const override;
 
    void genPrimitive(
        const PrimitiveBuildingMaterial& data,
        std::vector<std::unique_ptr<Primitive>>& out_primitives) const override;
 
private:
    uint32 m_numIteration;
 
    void genMengerSpongeRecursive(
        const math::Vector3R& minVertex,
        const math::Vector3R& maxVertex,
        uint32                currentIteration,
        std::vector<GCuboid>& cubes) const;
 
public:
    PH_DEFINE_SDL_CLASS(TSdlOwnerClass<GMengerSponge>)
    {
        ClassType clazz("menger-sponge");
        clazz.docName("Menger Sponge Geometry");
        clazz.description("A fractal geometry.");
        clazz.baseOn<Geometry>();
 
        TSdlInteger<OwnerType, uint32> numIteration("iterations", &OwnerType::m_numIteration);
        numIteration.description("Number of recursive iterations on the fractal surface detail.");
        numIteration.defaultTo(3);
        clazz.addField(numIteration);
 
        return clazz;
    }
};
 
}// end namespace ph