factory.h

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#ifndef INCLUDE_GAME_MATH_FACTORY_H
#define INCLUDE_GAME_MATH_FACTORY_H
 
#include <memory>
#include <random>
#include "game/math/interfaces.h"
 
namespace game::math {
 
    class AddEquationFactory final : public IEquationFactory {
        std::mt19937& rng;
        std::uniform_int_distribution<int> dist_answer{0, 9};
        std::uniform_int_distribution<int> dist_rhs{0, 11};
 
    public:
        explicit AddEquationFactory(std::mt19937& rng);
 
        [[nodiscard]] auto create() -> std::unique_ptr<IEquation> override;
    };
 
    class SubtractEquationFactory final : public IEquationFactory {
        std::mt19937& rng;
        std::uniform_int_distribution<int> dist_answer{0, 9};
        std::uniform_int_distribution<int> dist_rhs{0, 11};
 
    public:
        explicit SubtractEquationFactory(std::mt19937& rng);
 
        [[nodiscard]] auto create() -> std::unique_ptr<IEquation> override;
    };
 
    class DivideEquationFactory final : public IEquationFactory {
        std::mt19937& rng;
        std::uniform_int_distribution<int> dist_answer{0, 9};
        std::uniform_int_distribution<int> dist_rhs{1, 8};
 
    public:
        explicit DivideEquationFactory(std::mt19937& rng);
 
        [[nodiscard]] auto create() -> std::unique_ptr<IEquation> override;
    };
 
}  // namespace game::math
 
#endif