ConstantFunction.hh

// Copyright QED Software 2023.
 
#ifndef GRAIL_CONSTANT_FUNCTION_H
#define GRAIL_CONSTANT_FUNCTION_H
 
#include "Curve.hh"
 
namespace grail
{
namespace evaluator
{
    template <typename ContextType>
    class ConstantFunction final : public Curve<ContextType>
    {
    public:
        ConstantFunction(std::shared_ptr<Evaluator<ContextType>> childEvaluator, float constant)
            : Curve<ContextType>{childEvaluator}, constant{constant}
        {
        }
 
        virtual float Sample(float) const override final
        {
            return constant;
        }
 
        float GetConstant() const { return constant; }
        virtual data::EvaluatorType GetEvaluatorType() const override final { return data::EvaluatorType::CURVE_CONSTANT; }
 
    private:
        float constant = 0.0f;
    };
}
}
#endif // GRAIL_CONSTANT_FUNCTION_H