File Light.h

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#pragma once

#include "ID.h"
#include "Transform.h"
#include "Sprite.h"

#include "RenderConfigs.h"

enum LightType
{
    NONELIGHT = -1,  
    POINTLIGHT,      
    SUNLIGHT,        
    SPOTLIGHT,       
    AREALIGHT        
};

class Light : public ObjectID, public Transform3D
{
public:
    bool use_shadow{ true }; 

    LightType light_type{ LightType::NONELIGHT }; 
    float light_power{ 1.0f };                    
    glm::vec3 light_color{ 1.0f };                

    // Point light parameters
    float light_radius{ 0.05f }; 

    // Spot light parameters
    float spot_cutoff{ 0.9f };       
    float spot_outer_cutoff{ 0.8f }; 

    // Area light parameters
    float area_ratio{ 1.0f }; 

public:
    Sprite light_sprite; 

public:
    // TODO: Move to RenderConfigs
    static float sun_shaodow_field;  
    static float sun_shaodow_near;   
    static float sun_shaodow_far;    

    static float point_shaodow_near; 
    static float point_shaodow_far;  
    static float point_blur_range;   

    static float spot_shaodow_near;  
    static float spot_shaodow_far;   
    static float spot_blur_range;    

    static float area_shaodow_near;  
    static float area_shaodow_far;   
    static float area_blur_range;    

public:
    Light();

    Light(LightType type, float power = 10, glm::vec3 color = glm::vec3{ 1, 1, 1 });

    inline static std::pair<SpriteType, std::string> ParseLightName(LightType _type);

public:
    bool is_light_changed{ false }; 

    void SetColor(const glm::vec3& _col);

    void SetPower(float _power);

    void SetShadow(bool _state);

    void SetRadius(float _rad);

    void SetCutoff(float _ang);

    void SetOuterCutoff(float _ang);

    void SetRatio(float _ratio);

public:
    void RenderLightSpr(const Context& ctx);

public:
    void* GetTransform()    override { return dynamic_cast<Transform*>(GetTransformPtr()); }

    void* GetShader()       override;
};