sphere_geometry.h

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#pragma once
 
#include <liboscar/graphics/mesh.h>
#include <liboscar/maths/angle.h>
#include <liboscar/utilities/c_string_view.h>
 
#include <cstddef>
 
namespace osc
{
    struct SphereGeometryParams final {
        friend bool operator==(const SphereGeometryParams&, const SphereGeometryParams&) = default;
 
        float radius = 1.0f;
        size_t num_width_segments = 32;
        size_t num_height_segments = 16;
        Radians phi_start = Degrees{0};
        Radians phi_length = Degrees{360};
        Radians theta_start = Degrees{0};
        Radians theta_length = Degrees{180};
    };
 
    class SphereGeometry final {
    public:
        using Params = SphereGeometryParams;
 
        static constexpr CStringView name() { return "Sphere"; }
 
        explicit SphereGeometry(const Params& = {});
 
        const Mesh& mesh() const { return mesh_; }
        operator const Mesh& () const { return mesh_; }
    private:
        Mesh mesh_;
    };
}