GSphere.h

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#pragma once
 
#include "Actor/Geometry/Geometry.h"
#include "Math/TVector3.h"
#include "SDL/sdl_interface.h"
 
#include <Common/primitive_type.h>
 
#include <vector>
 
namespace ph
{
 
class GTriangleMesh;
 
class GSphere : public Geometry
{
public:
    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;
 
    std::shared_ptr<Geometry> genTransformed(
        const math::StaticAffineTransform& transform) const override;
 
    GSphere& setRadius(real radius);
 
private:
    real m_radius;
 
    std::size_t addVertex(const math::Vector3R& vertex, std::vector<math::Vector3R>* const out_vertices) const;
    std::size_t addMidpointVertex(const std::size_t iA, const std::size_t iB, std::vector<math::Vector3R>* const out_vertices) const;
    std::shared_ptr<GTriangleMesh> genTriangleMesh() const;
 
public:
    PH_DEFINE_SDL_CLASS(TSdlOwnerClass<GSphere>)
    {
        ClassType clazz("sphere");
        clazz.docName("Spherical Geometry");
        clazz.description("A perfectly round shape centering around origin.");
        clazz.baseOn<Geometry>();
 
        TSdlReal<OwnerType> radius("radius", &OwnerType::m_radius);
        radius.description("Size of the sphere.");
        radius.defaultTo(1);
        clazz.addField(radius);
 
        return clazz;
    }
};
 
}// end namespace ph