StyleInstance.h

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#pragma once
#include "common/Export.h"
 
 
#include <map>
#include <optional>
#include <string>
#include <unordered_map>
 
namespace eve::graphics {
class Graphics;
class Shader;
}  // namespace eve::graphics
 
namespace eve::stylize {
 
class StylePass;
 
class EVENGINE_API_WORLD StyleInstance {
public:
    explicit StyleInstance(std::string style);
    StyleInstance(std::string style, std::map<std::string, float> defaults);
    ~StyleInstance() = default;
 
    StyleInstance(const StyleInstance&)            = delete;
    StyleInstance& operator=(const StyleInstance&) = delete;
 
    std::string getStyle() const { return style_; }
    std::string getStage() const;
    int         getPriority() const;
    void        setPriority(int priority) { priority_ = priority; }
    void        resetPriority() { priority_.reset(); }
    bool        requiresInput(const std::string& input) const;
    int         getParamCount() const;
    std::string getParamName(int index) const;
    float       getParamDefault(const std::string& name) const;
    float       getParamMin(const std::string& name) const;
    float       getParamMax(const std::string& name) const;
 
    bool  hasParam(const std::string& name) const;
    bool  isOverridden(const std::string& name) const;
    void  setFloat(const std::string& name, float value);
    float getFloat(const std::string& name) const;
    void  reset(const std::string& name);
    void  resetAll();
 
    StylePass* newPass(graphics::Graphics* gfx) const;
    graphics::Shader* newMeshShader(graphics::Graphics* gfx) const;
 
    void applyToShader(graphics::Shader* shader) const;
 
private:
    std::string                            style_;
    std::unordered_map<std::string, float> overrides_;
    std::optional<int>                     priority_;
    std::optional<std::map<std::string, float>> externalDefaults_;
};
 
}  // namespace eve::stylize