diff --git a/include/billy_objects.hpp b/include/billy_objects.hpp
index 1d47850..8e3125d 100644
--- a/include/billy_objects.hpp
+++ b/include/billy_objects.hpp
@@ -95,7 +95,11 @@ namespace character {
 
         void pop_object(CharacterSheet &sheet) noexcept;
 
-//        void insert_weapon(weapons weapon, CharacterSheet &sheet) noexcept;
+        [[nodiscard]] static ankerl::svector<bool, 3> check_conformity(const CharacterSheet &sheet) noexcept;
+
+        [[nodiscard]] const std::plus<std::uint32_t> &get_plus_operation() const { return plus; }
+
+        [[nodiscard]] const std::minus<std::uint32_t> &get_minus_operation() const { return minus; }
 
     private:
         std::plus<std::uint32_t> plus;
@@ -124,6 +128,10 @@ namespace character {
                 characteristic::Characteristic &localEndurance,
                 characteristic::Characteristic &localChance,
                 const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) noexcept;
+
+        static void check_dagger_conditions(const CharacterSheet &sheet,
+                characteristic::Characteristic &localHabilete,
+                const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation);
     };
 }
 
diff --git a/include/character_sheet.hpp b/include/character_sheet.hpp
index b043f0a..339a97c 100644
--- a/include/character_sheet.hpp
+++ b/include/character_sheet.hpp
@@ -1,18 +1,10 @@
 #ifndef BILLYSHEET_CHARACTER_SHEET_HPP
 #define BILLYSHEET_CHARACTER_SHEET_HPP
 
-#include "characteristic/adresse.hpp"
-#include "characteristic/endurance.hpp"
-#include "characteristic/chance.hpp"
-#include "characteristic/habilete.hpp"
+#include "characteristic/characteristic.hpp"
 #include "billy_objects.hpp"
-#include <random>
 #include <unordered_set>
 
-namespace gui {
-    class Gui;
-}
-
 namespace character {
     enum class classe : std::uint8_t {
         Guerrier = 0,
@@ -23,23 +15,20 @@ namespace character {
 
     class CharacterSheet final {
     private:
-        friend gui::Gui;
 
         friend BillyObjects;
 
-        std::mt19937_64 engine{ std::random_device{ "rdseed" }() };
-
         std::string caractere{};
 
         //TODO: bad design pour les caractéristiques. Je dois trouver autre chose.
 
-        characteristic::Adresse adresse;
+        characteristic::Characteristic adresse{ characteristic::characType::Adresse };
 
-        characteristic::Endurance endurance;
+        characteristic::Characteristic endurance{ characteristic::characType::Endurance };
 
-        characteristic::Chance chance;
+        characteristic::Characteristic chance{ characteristic::characType::Chance };
 
-        characteristic::Habilete habilete;
+        characteristic::Characteristic habilete{ characteristic::characType::Habilete };
 
         BillyObjects::container objects;
 
@@ -80,13 +69,13 @@ namespace character {
 
         [[nodiscard]] const std::string &get_caractere() const { return caractere; }
 
-        [[nodiscard]] const characteristic::Adresse &get_adresse() const { return adresse; }
+        [[nodiscard]] const characteristic::Characteristic &get_adresse() const { return adresse; }
 
-        [[nodiscard]] const characteristic::Endurance &get_endurance() const { return endurance; }
+        [[nodiscard]] const characteristic::Characteristic &get_endurance() const { return endurance; }
 
-        [[nodiscard]] const characteristic::Chance &get_chance() const { return chance; }
+        [[nodiscard]] const characteristic::Characteristic &get_chance() const { return chance; }
 
-        [[nodiscard]] const characteristic::Habilete &get_habilete() const { return habilete; }
+        [[nodiscard]] const characteristic::Characteristic &get_habilete() const { return habilete; }
 
         [[nodiscard]] const BillyObjects::container &get_objects() const { return objects; }
 
diff --git a/include/characteristic/adresse.hpp b/include/characteristic/adresse.hpp
deleted file mode 100644
index dbb1ce9..0000000
--- a/include/characteristic/adresse.hpp
+++ /dev/null
@@ -1,30 +0,0 @@
-#ifndef BILLYSHEET_ADRESSE_HPP
-#define BILLYSHEET_ADRESSE_HPP
-
-#include "characteristic.hpp"
-#include <nlohmann/json.hpp>
-
-using json = nlohmann::json;
-
-namespace character::characteristic {
-    class Adresse final : public Characteristic {
-    public:
-        Adresse() noexcept: Characteristic(1, 0, 0, 0) {}
-
-        Adresse(const std::uint32_t carac, const std::uint32_t materiel, const std::uint32_t additional) :
-                Characteristic(1, carac, materiel, additional) {}
-
-        ~Adresse() noexcept final = default;
-
-        friend void from_json(const json &j, Adresse &adresse) {
-            nlohmann::from_json(j, static_cast<Characteristic &>(adresse));
-        }
-    };
-
-    static void to_json(json &j, const Adresse &adresse) {
-        to_json(j, static_cast<Characteristic>(adresse));
-    }
-}
-
-
-#endif //BILLYSHEET_ADRESSE_HPP
diff --git a/include/characteristic/chance.hpp b/include/characteristic/chance.hpp
deleted file mode 100644
index aed65ee..0000000
--- a/include/characteristic/chance.hpp
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef BILLYSHEET_CHANCE_HPP
-#define BILLYSHEET_CHANCE_HPP
-
-#include "characteristic.hpp"
-
-namespace character::characteristic {
-    class Chance final : public Characteristic {
-    public:
-        Chance() noexcept: Characteristic(3, 0, 0, 0) {}
-
-        Chance(const std::uint32_t carac, const std::uint32_t materiel, const std::uint32_t additional) :
-                Characteristic(3, carac, materiel, additional) {}
-
-        ~Chance() noexcept final = default;
-
-        friend void from_json(const json &j, Chance &chance) {
-            nlohmann::from_json(j, static_cast<Characteristic &>(chance));
-        }
-    };
-
-    static void to_json(json &j, const Chance &chance) {
-        to_json(j, static_cast<Characteristic>(chance));
-    }
-}
-
-
-#endif //BILLYSHEET_CHANCE_HPP
diff --git a/include/characteristic/characteristic.hpp b/include/characteristic/characteristic.hpp
index d41000f..11d6a27 100644
--- a/include/characteristic/characteristic.hpp
+++ b/include/characteristic/characteristic.hpp
@@ -11,6 +11,13 @@ namespace character {
 }
 
 namespace character::characteristic {
+    enum class characType : std::uint8_t {
+        Adresse = 0,
+        Endurance = 1,
+        Chance = 2,
+        Habilete = 3
+    };
+
     class Characteristic {
     protected:
         friend character::BillyObjects;
@@ -21,19 +28,40 @@ namespace character::characteristic {
         std::uint32_t materiel{ 0 };
         std::uint32_t additional{ 0 };
 
+        static std::uint32_t get_base(const characType inType) noexcept {
+            switch (inType) {
+                case characType::Adresse:
+                    return 1;
+                case characType::Chance:
+                    return 3;
+                case characType::Endurance:
+                case characType::Habilete:
+                    return 2;
+            }
+        }
+
     public:
+        const characType type{ characType::Adresse };
+
         Characteristic() noexcept = default;
 
-        Characteristic(const std::uint32_t base,
+        Characteristic(const characType inType,
                 const std::uint32_t carac,
                 const std::uint32_t materiel,
-                const std::uint32_t additional) noexcept:
-                base(base), carac(carac), materiel(materiel), additional(additional) { (void) get_total(); }
+                const std::uint32_t additional) :
+                base(get_base(inType)),
+                carac(carac),
+                materiel(materiel),
+                additional(additional),
+                type(inType) { (void) get_total(); }
+
+        explicit Characteristic(const characType inType) : Characteristic(inType, 0, 0, 0) {}
 
         Characteristic(const Characteristic &charac) noexcept = default;
 
         Characteristic &operator=(const Characteristic &charac) noexcept {
             const_cast<std::uint32_t &>(base) = charac.base;
+            const_cast<characType &>(type) = charac.type;
             carac = charac.carac;
             materiel = charac.materiel;
             additional = charac.additional;
@@ -63,15 +91,17 @@ namespace character::characteristic {
 
         friend void from_json(const json &j, Characteristic &charac) {
             const_cast<std::uint32_t &>(charac.base) = j.at("base").get<std::uint32_t>();
+            const_cast<characType &>(charac.type) = static_cast<characType>(j.at("type").get<std::uint8_t>());
             charac.carac = j.at("carac").get<std::uint32_t>();
             charac.materiel = j.at("materiel").get<std::uint32_t>();
             charac.additional = j.at("additional").get<std::uint32_t>();
-            charac.total = j.at("total").get<std::uint32_t>();
+            charac.total = j.at("total").get<std::int32_t>();
         }
     };
 
     static void to_json(json &j, const Characteristic &charac) {
         j["base"] = charac.get_base();
+        j["type"] = charac.type;
         j["carac"] = charac.get_carac();
         j["materiel"] = charac.get_materiel();
         j["additional"] = charac.get_additional();
diff --git a/include/characteristic/endurance.hpp b/include/characteristic/endurance.hpp
deleted file mode 100644
index 91ad534..0000000
--- a/include/characteristic/endurance.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef BILLYSHEET_ENDURANCE_HPP
-#define BILLYSHEET_ENDURANCE_HPP
-
-#include "characteristic.hpp"
-#include <nlohmann/json.hpp>
-
-using json = nlohmann::json;
-
-namespace character::characteristic {
-    class Endurance final : public Characteristic {
-    public:
-        Endurance() noexcept: Characteristic(2, 0, 0, 0) {};
-
-        Endurance(const std::uint32_t carac, const std::uint32_t materiel, const std::uint32_t additional) noexcept:
-                Characteristic(2, carac, materiel, additional) {}
-
-        ~Endurance() noexcept final = default;
-
-        [[nodiscard]] std::uint32_t get_max_lp() const noexcept;
-
-        friend void from_json(const json &j, Endurance &endurance) {
-            nlohmann::from_json(j, static_cast<Characteristic &>(endurance));
-        }
-    };
-
-    static void to_json(json &j, const Endurance &endurance) {
-        to_json(j, static_cast<Characteristic>(endurance));
-    }
-}
-
-
-#endif //BILLYSHEET_ENDURANCE_HPP
diff --git a/include/characteristic/habilete.hpp b/include/characteristic/habilete.hpp
deleted file mode 100644
index ef5d4ad..0000000
--- a/include/characteristic/habilete.hpp
+++ /dev/null
@@ -1,28 +0,0 @@
-#ifndef BILLYSHEET_HABILETE_HPP
-#define BILLYSHEET_HABILETE_HPP
-
-#include <cstdint>
-#include "characteristic.hpp"
-
-namespace character::characteristic {
-    class Habilete final : public Characteristic {
-    public:
-        Habilete() noexcept: Characteristic(2, 0, 0, 0) {};
-
-        Habilete(const uint32_t carac, const uint32_t materiel, const uint32_t additional) noexcept:
-                Characteristic(2, carac, materiel, additional) {}
-
-        ~Habilete() noexcept final = default;
-
-        friend void from_json(const json &j, Habilete &habilete) {
-            nlohmann::from_json(j, static_cast<Characteristic &>(habilete));
-        }
-    };
-
-    static void to_json(json &j, const Habilete &habilete) {
-        to_json(j, static_cast<Characteristic>(habilete));
-    }
-}
-
-
-#endif //BILLYSHEET_HABILETE_HPP
diff --git a/include/generic_object.hpp b/include/generic_object.hpp
new file mode 100644
index 0000000..298985e
--- /dev/null
+++ b/include/generic_object.hpp
@@ -0,0 +1,144 @@
+//
+// Created by postaron on 01/09/24.
+//
+
+#ifndef BILLYSHEET_GENERIC_OBJECT_HPP
+#define BILLYSHEET_GENERIC_OBJECT_HPP
+
+#include <cstdint>
+#include <variant>
+#include <string>
+#include <string_view>
+#include "characteristic/characteristic.hpp"
+
+// helper type for the visitor
+template<typename... Ts>
+struct overloaded : Ts ... { using Ts::operator()...; };
+template<typename... Ts>
+overloaded(Ts...) -> overloaded<Ts...>;
+
+namespace character {
+    using namespace std::string_literals;
+
+    enum class weapons : std::uint8_t {
+        Sword = 0,
+        Lance = 1,
+        Morgenstern = 2,
+        Bow = 3
+    };
+
+    enum class equipments : std::uint8_t {
+        Chainmail = 4,
+        CookingPot = 5,
+        PamphletTourist = 6,
+        MedicKit = 7
+    };
+
+    enum class tools : std::uint8_t {
+        Fourche = 8,
+        Dagger = 9,
+        RockClimbingKit = 10,
+        SackOfGrain = 11
+    };
+
+    class Weapons;
+
+    class Equipments;
+
+    class Tools;
+
+    using billyObjects = std::variant<Weapons, Equipments, Tools>;
+    using billyEnums = std::variant<weapons, equipments, tools>;
+
+    static billyObjects new_object(const billyEnums &inputObject);
+
+    class GenericObject {
+    public:
+        virtual ~GenericObject() = default;
+
+        [[nodiscard]] virtual std::uint32_t add_armor() const noexcept = 0;
+
+        [[nodiscard]] virtual std::uint32_t add_critique() const noexcept = 0;
+
+        [[nodiscard]] virtual std::uint32_t add_damage() const noexcept = 0;
+
+        [[nodiscard]] virtual std::uint32_t add_materiel(const characteristic::characType inType) const noexcept = 0;
+
+        [[nodiscard]] virtual std::string_view to_string() const noexcept = 0;
+    };
+
+    class Weapons final : virtual public GenericObject {
+    public:
+        const weapons type{ weapons::Sword };
+
+        friend billyObjects new_object(const billyEnums &inputObject);
+
+        Weapons() = delete;
+
+        ~Weapons() final = default;
+
+        [[nodiscard]] std::uint32_t add_armor() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_critique() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_damage() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_materiel(const characteristic::characType inType) const noexcept final;
+
+        [[nodiscard]] std::string_view to_string() const noexcept override;
+
+    private:
+        explicit Weapons(const weapons type) : type(type) {}
+    };
+
+    class Equipments final : virtual public GenericObject {
+    public:
+        const equipments type{ equipments::Chainmail };
+
+        friend billyObjects new_object(const billyEnums &inputObject);
+
+        Equipments() = delete;
+
+        ~Equipments() final = default;
+
+        [[nodiscard]] std::uint32_t add_armor() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_critique() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_damage() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_materiel(const characteristic::characType inType) const noexcept final;
+
+        [[nodiscard]] std::string_view to_string() const noexcept override;
+
+    private:
+        explicit Equipments(const equipments type) : type(type) {}
+    };
+
+    class Tools final : virtual public GenericObject {
+    public:
+        const tools type{ tools::Fourche };
+
+        friend billyObjects new_object(const billyEnums &inputObject);
+
+        Tools() = delete;
+
+        ~Tools() final = default;
+
+        [[nodiscard]] std::uint32_t add_armor() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_critique() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_damage() const noexcept final;
+
+        [[nodiscard]] std::uint32_t add_materiel(const characteristic::characType inType) const noexcept final;
+
+        [[nodiscard]] std::string_view to_string() const noexcept override;
+
+    private:
+        explicit Tools(const tools type) : type(type) {}
+    };
+
+} // character
+
+#endif //BILLYSHEET_GENERIC_OBJECT_HPP
diff --git a/src/billy_objects.cpp b/src/billy_objects.cpp
index a08be7e..b4488e8 100644
--- a/src/billy_objects.cpp
+++ b/src/billy_objects.cpp
@@ -179,6 +179,24 @@ namespace character {
         }
     }
 
+    void BillyObjects::check_dagger_conditions(const CharacterSheet &sheet,
+            Characteristic &localHabilete,
+            const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) {
+        int count_weapons = 0;
+        bool is_there_bow = false;
+        std::for_each(sheet.objects.cbegin(), sheet.objects.cend(), [&](const billyObject &object) -> void {
+            if (const weapons *p = std::get_if<weapons>(std::addressof(object)); p != nullptr) {
+                ++count_weapons;
+                if (*p == weapons::Bow) {
+                    is_there_bow = true;
+                }
+            }
+        });
+        if (count_weapons < 2 && !is_there_bow) {
+            localHabilete.materiel = operation(localHabilete.materiel, 1);
+        }
+    }
+
     std::string_view BillyObjects::billy_object_to_string(const billyObject &object) noexcept {
         return std::visit(overloaded{
                 [](const weapons &arg) {
@@ -253,4 +271,24 @@ namespace character {
             }, object);
         }
     }
+
+    ankerl::svector<bool, 3> BillyObjects::check_conformity(const CharacterSheet &sheet) noexcept {
+        ankerl::svector<bool, 3> output;
+        std::transform(sheet.get_objects().cbegin(),
+                sheet.get_objects().cend(), std::back_inserter(output),
+                [&sheet](const billyObject &object) -> bool {
+                    return std::visit(overloaded{
+                            [](const weapons weapon) { return false; },
+                            [](const equipments equipment) { return false; },
+                            [](const tools tool) { return false; },
+                    }, object);
+                });
+        const int total = std::accumulate(sheet.get_objects().cbegin(),
+                sheet.get_objects().cend(),
+                0,
+                [](const int a, const billyObject &object) -> int {
+                    return 0;
+                });
+        return output;
+    }
 }
\ No newline at end of file
diff --git a/src/generic_object.cpp b/src/generic_object.cpp
new file mode 100644
index 0000000..7d21f4b
--- /dev/null
+++ b/src/generic_object.cpp
@@ -0,0 +1,170 @@
+//
+// Created by postaron on 01/09/24.
+//
+
+#include "generic_object.hpp"
+
+namespace character {
+    using characteristic::characType;
+
+    static constexpr std::string_view jsonKey{ "billy_objects" };
+
+    static constexpr std::string_view sword{ "Sword" };
+    static constexpr std::string_view lance{ "Lance" };
+    static constexpr std::string_view morgenstern{ "Morgenstern" };
+    static constexpr std::string_view bow{ "Bow" };
+
+    static constexpr std::string_view chainmail{ "Chainmail" };
+    static constexpr std::string_view cookingPot{ "Cooking pot" };
+    static constexpr std::string_view pamphletTourist{ "Touristic pamphlet" };
+    static constexpr std::string_view medicKit{ "Medic kit" };
+
+    static constexpr std::string_view fourche{ "Fourche" };
+    static constexpr std::string_view dagger{ "Dagger" };
+    static constexpr std::string_view rockClimbingKit{ "Rock climbing kit" };
+    static constexpr std::string_view sackOfGrain{ "Sack of grain" };
+
+    std::uint32_t Weapons::add_armor() const noexcept { return 0; }
+
+    std::uint32_t Weapons::add_critique() const noexcept { return 0; }
+
+    std::uint32_t Weapons::add_damage() const noexcept { return type == weapons::Morgenstern ? 1 : 0; }
+
+    std::uint32_t Weapons::add_materiel(const characteristic::characType inType) const noexcept {
+        switch (type) {
+            case weapons::Sword:
+                if (inType == characType::Habilete) {
+                    return 4;
+                } else {
+                    return 0;
+                }
+            case weapons::Lance:
+                switch (inType) {
+                    case characType::Adresse:
+                        return 1;
+                    case characType::Habilete:
+                        return 3;
+                    default:
+                        return 0;
+                }
+            case weapons::Morgenstern:
+                if (inType == characType::Endurance || inType == characType::Habilete) {
+                    return 1;
+                } else {
+                    return 0;
+                }
+            case weapons::Bow:
+                switch (inType) {
+                    case characType::Habilete:
+                        return 3;
+                    case characType::Adresse:
+                        return 1;
+                    default:
+                        return 0;
+                }
+        }
+    }
+
+    std::string_view Weapons::to_string() const noexcept {
+        switch (type) {
+            case weapons::Sword:
+                return sword;
+            case weapons::Lance:
+                return lance;
+            case weapons::Morgenstern:
+                return morgenstern;
+            case weapons::Bow:
+                return bow;
+        }
+    }
+
+    std::uint32_t Equipments::add_armor() const noexcept {
+        switch (type) {
+            case equipments::Chainmail:
+                return 2;
+            case equipments::CookingPot:
+                return 1;
+            default:
+                return 0;
+        }
+    }
+
+    std::uint32_t Equipments::add_critique() const noexcept { return 0; }
+
+    std::uint32_t Equipments::add_damage() const noexcept { return 0; }
+
+    std::uint32_t Equipments::add_materiel(const characteristic::characType inType) const noexcept {
+        switch (type) {
+            case equipments::Chainmail:
+                return inType == characType::Habilete ||
+                       inType == characType::Adresse ||
+                       inType == characType::Endurance ? 1 : 0;
+            case equipments::CookingPot:
+                return inType == characType::Endurance ? 2 : 0;
+            case equipments::PamphletTourist:
+                return inType == characType::Chance ? 4 : 0;
+            case equipments::MedicKit:
+                return inType == characType::Chance ? 1 : 0;
+        }
+    }
+
+    std::string_view Equipments::to_string() const noexcept {
+        switch (type) {
+            case equipments::Chainmail:
+                return chainmail;
+            case equipments::CookingPot:
+                return cookingPot;
+            case equipments::PamphletTourist:
+                return pamphletTourist;
+            case equipments::MedicKit:
+                return medicKit;
+        }
+    }
+
+    std::uint32_t Tools::add_armor() const noexcept { return 0; }
+
+    std::uint32_t Tools::add_critique() const noexcept { return type == tools::Dagger ? 6 : 0; }
+
+    std::uint32_t Tools::add_damage() const noexcept { return 0; }
+
+    std::uint32_t Tools::add_materiel(const characteristic::characType inType) const noexcept {
+        switch (type) {
+            case tools::Fourche:
+                switch (inType) {
+                    case characType::Habilete:
+                        return 1;
+                    case characType::Endurance:
+                        return 3;
+                    default:
+                        return 0;
+                }
+            case tools::Dagger:
+                return 0;
+            case tools::RockClimbingKit:
+                return inType == characType::Adresse ? 1 : 0;
+            case tools::SackOfGrain:
+                return inType == characType::Endurance || inType == characType::Chance ? 2 : 0;
+        }
+    }
+
+    std::string_view Tools::to_string() const noexcept {
+        switch (type) {
+            case tools::Fourche:
+                return fourche;
+            case tools::Dagger:
+                return dagger;
+            case tools::RockClimbingKit:
+                return rockClimbingKit;
+            case tools::SackOfGrain:
+                return sackOfGrain;
+        }
+    }
+
+    billyObjects new_object(const billyEnums &inputObject) {
+        return std::visit(overloaded{
+                [](const weapons input) { return billyObjects{ Weapons{ input }}; },
+                [](const equipments input) { return billyObjects{ Equipments{ input }}; },
+                [](const tools input) { return billyObjects{ Tools{ input }}; }
+        }, inputObject);
+    }
+}