SpotLight.hpp

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#ifndef _SPOT_LIGHT_HPP_
#define _SPOT_LIGHT_HPP_
 
#include <Lighting/Light.hpp>
#include <cmath>
 
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
 
namespace Sleak {
 
    /// Cone light with separate inner/outer cone angles for a soft penumbra edge.
    /// @ingroup lighting
    class ENGINE_API SpotLight : public Light {
    public:
        explicit SpotLight(const std::string& name = "SpotLight");
        ~SpotLight() override = default;
 
        RenderEngine::LightGPUEntry BuildGPUData() const override;
 
        void SetPosition(const Math::Vector3D& pos) {
            m_position = pos;
        }
        Math::Vector3D GetPosition() const { return m_position; }
 
        void SetDirection(const Math::Vector3D& dir) {
            m_direction = dir;
            m_direction.Normalize();
        }
        Math::Vector3D GetDirection() const { return m_direction; }
 
        void SetRange(float range) { m_range = range; }
        float GetRange() const { return m_range; }
 
        // Angles in degrees
        void SetInnerConeAngle(float degrees) {
            m_innerAngleDeg = degrees;
        }
        float GetInnerConeAngle() const { return m_innerAngleDeg; }
 
        void SetOuterConeAngle(float degrees) {
            m_outerAngleDeg = degrees;
        }
        float GetOuterConeAngle() const { return m_outerAngleDeg; }
 
    private:
        Math::Vector3D m_position{0.0f, 0.0f, 0.0f};
        Math::Vector3D m_direction{0.0f, -1.0f, 0.0f};
        float m_range = 10.0f;
        float m_innerAngleDeg = 20.0f;
        float m_outerAngleDeg = 30.0f;
    };
 
}  // namespace Sleak
 
#endif  // _SPOT_LIGHT_HPP_