equation.h

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#ifndef INCLUDE_GAME_MATH_EQUATION_H
#define INCLUDE_GAME_MATH_EQUATION_H
 
#include <string>
#include "game/math/interfaces.h"
 
namespace game::math {
 
    class AddEquation final : public IEquation {
        int lhs;
        int rhs;
 
    public:
        AddEquation(int lhs, int rhs);
 
        [[nodiscard]] auto answer() const -> int override;
 
        [[nodiscard]] auto display() const -> std::string override;
 
        [[nodiscard]] auto display_solved() const -> std::string override;
    };
 
    class SubtractEquation final : public IEquation {
        int lhs;
        int rhs;
 
    public:
        SubtractEquation(int lhs, int rhs);
 
        [[nodiscard]] auto answer() const -> int override;
 
        [[nodiscard]] auto display() const -> std::string override;
 
        [[nodiscard]] auto display_solved() const -> std::string override;
    };
 
    class DivideEquation final : public IEquation {
        int lhs;
        int rhs;
 
    public:
        DivideEquation(int lhs, int rhs);
 
        [[nodiscard]] auto answer() const -> int override;
 
        [[nodiscard]] auto display() const -> std::string override;
 
        [[nodiscard]] auto display_solved() const -> std::string override;
    };
 
}  // namespace game::math
 
#endif