90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/*****************************************************************//**
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* @file point.hpp
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* @brief Anything related to point light sources
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*
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* @author Lauchmelder
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* @date January 2021
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*********************************************************************/
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#ifndef POINT_HPP
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#define POINT_HPP
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#include <core.hpp>
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#include <color.hpp>
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#include <glm/glm.hpp>
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namespace oglu
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{
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class Transformable;
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/**
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* @brief A class containing things related to point lighting.
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*/
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class OGLU_API PointLight
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{
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public:
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/**
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* @brief Create a default point light.
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*
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* By default the diffusion and specular components are white and
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* the light is positioned at the world origin
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*/
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PointLight();
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/**
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* @brief Create a new point light.
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*
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* @param position Position of the light
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* @param diffusionColor Color of the diffusion component
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* @param specularColor Color of the specular component
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*/
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PointLight(const glm::vec3& position, const Color& diffusionColor = Color::White, const Color& specularColor = Color::White);
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/**
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* @brief Copy from another point light.
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*
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* @param other The point light to copy from
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*/
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PointLight(const PointLight& other);
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~PointLight();
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/**
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* @brief Link the lights position to a Transformable.
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*
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* It is possible to link the positions of a Transformable and
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* a PointLight. This means that these two objects will always
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* have the same position, until they are unlinked. Deleting a
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* Transformable before unlinking any linked PointLight causes
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* undefined behaviour.
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*
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* @param link The Transformable to link to
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*/
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void LinkPositionToTransformable(Transformable& link);
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/**
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* @brief Unlink a Transformable.
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*
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* This breaks the link between the two objects.
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*/
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void UnlinkPositionFromTransformable();
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/**
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* Get the lights position.
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*
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* @returns A pointer to the lights position
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*/
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float* GetPositionPointer();
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public:
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// TODO: Does this split make sense? I'll keep it for now
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Color diffusionColor; ///< Diffusion color of the light
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Color specularColor; ///< Specular color of the light
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private:
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glm::vec3* position; ///< Position of the light
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bool isLinked; ///< Wether the position is linked to an object or not
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};
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}
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#endif |