File Environment.h

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#pragma once

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

#include "Context.h"

#include "buffers/FrameBuffer.h"
#include "shaders/RenderShader.h"

enum EnvironmentType
{
    NONE_ENVIR,     
    TEXTURE_ENVIR,  
    COLOR_ENVIR,    
    NOISE_ENVIR     
};

class Environment : public ObjectID, public Transform3D
{
public:

    Environment();

    Environment(const std::string& texpath);

public:

    RenderShader envir_shader; 

    Texture envir_IBL_diff;  
    Texture envir_IBL_spec;  
    EnvironmentType envir_type = EnvironmentType::NONE_ENVIR; 
    bool use_envir = false;  

    Sprite envir_sprite; 

    float envir_gamma = 2.2f;              
    glm::vec3 envir_color = glm::vec3(1.0f); 

public:

    void ChangeEnvirTexture(const std::string& texpath) const;

    void ChangeEnvirType(EnvironmentType type) const;

    void BindFrameBuffer() const;

    void UnbindFrameBuffer() const;

    void SwapFrameBuffer(FBType type);

    void BindEnvironTexture() const;

    void UnbindEnvironTexture() const;

public:

    void* GetShader()       override { return &envir_shader; }

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

    void RenderEnvironment(const Context& ctx);

    void RenderEnvirSpr(const Context& ctx);

};