EvoParam.hh

#ifndef GRAIL_EVO_PARAM_H
#define GRAIL_EVO_PARAM_H
 
#include "IEvoParam.hh"
 
#include <vector>
#include <iostream>
#include <string>
 
namespace grail
{
    namespace evolution
    {
        /*
        A class for defining evolutionary-optimizable parameters.
        They can be registered in @EvoScripts for the evolutionary optimization functionality.
        The template type @T defines type of possible values the parameter may store.
        As @T you have to either use a trivially destructible object or a smart pointer that will delete itself when it goes out of scope.
        */
        template<class T>
        class EvoParam final : public IEvoParam
        {
        private:
            std::vector<T> domain{};
 
        public:
            EvoParam(std::initializer_list<T> argsDomain)
                : IEvoParam(argsDomain.size())
            {
                domain.reserve(argsDomain.size());
                std::copy(argsDomain.begin(), argsDomain.end(), std::back_inserter(domain));
            }
 
            EvoParam(std::vector<T>& argsDomain)
                : IEvoParam(argsDomain.size())
            {
                domain.reserve(argsDomain.size());
                std::copy(argsDomain.begin(), argsDomain.end(), std::back_inserter(domain));
            }
 
            int IndexOfValue(T value)
            {
                const auto it = std::find(domain.begin(), domain.end(), value);
                if (it == domain.end())
                    return -1;
                return std::distance(domain.begin(), it);
            }
 
            const T Value() const
            {
                return domain[positionIndex];
            }
 
            /*Expicit cast so you can use constructions such as:
            EvoParam<int> speed({10,15,20})
            if(speed > 2) .... */
            operator T() const
            {
                return Value();
            }
 
            std::string ToString() const
            {
                return std::to_string(Value());
            }
        };
    }
}
#endif //GRAIL_EVO_PARAM_H