ConstantFunction.hh

#ifndef GRAIL_CONSTANT_FUNCTION_H
#define GRAIL_CONSTANT_FUNCTION_H
 
#include "Curve.hh"
 
namespace grail
{
    namespace curves
    {
        template <typename ContextType>
        class ConstantFunction final : public Curve<ContextType>
        {
        public:
            ConstantFunction(std::shared_ptr<utility::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 EvaluatorType GetEvaluatorType() const override final { return EvaluatorType::CURVE_CONSTANT; }
 
        private:
            float constant = 0.0f;
        };
    }
}
#endif // GRAIL_CONSTANT_FUNCTION_H