diff --git a/src/Library/BaseLibrary.hpp b/src/Library/BaseLibrary.hpp
index c8eff69..e5a36fd 100644
--- a/src/Library/BaseLibrary.hpp
+++ b/src/Library/BaseLibrary.hpp
@@ -47,16 +47,18 @@ namespace CreatureLib::Library {
             return true;
         }
 
-        inline const T* Get(const Arbutils::CaseInsensitiveConstString& name) const {
+        [[nodiscard]] inline const T* Get(const Arbutils::CaseInsensitiveConstString& name) const {
             return _values.at(name.GetHash());
         }
-        inline const T* Get(uint32_t hashedKey) const { return _values.at(hashedKey); }
+        [[nodiscard]] inline const T* Get(uint32_t hashedKey) const { return _values.at(hashedKey); }
 
-        inline const T* operator[](const Arbutils::CaseInsensitiveConstString& name) const { return Get(name); }
-        inline const T* operator[](uint32_t hashedKey) const { return Get(hashedKey); }
-        inline const std::unordered_map<uint32_t, const T*>& GetIterator() const { return _values; }
+        [[nodiscard]] inline const T* operator[](const Arbutils::CaseInsensitiveConstString& name) const {
+            return Get(name);
+        }
+        [[nodiscard]] inline const T* operator[](uint32_t hashedKey) const { return Get(hashedKey); }
+        [[nodiscard]] inline const std::unordered_map<uint32_t, const T*>& GetIterator() const { return _values; }
 
-        size_t GetCount() const { return _values.size(); }
+        [[nodiscard]] size_t GetCount() const { return _values.size(); }
     };
 }
 
diff --git a/src/Library/TypeLibrary.cpp b/src/Library/TypeLibrary.cpp
index e7a808b..e2f17d2 100644
--- a/src/Library/TypeLibrary.cpp
+++ b/src/Library/TypeLibrary.cpp
@@ -26,6 +26,14 @@ uint8_t TypeLibrary::RegisterType(const ConstString& key) {
     }
     return _types.size() - 1;
 }
+uint8_t TypeLibrary::RegisterType(uint32_t key) {
+    _types.insert({key, _types.size()});
+    _effectiveness.resize(_types.size());
+    for (auto& eff : _effectiveness) {
+        eff.resize(_types.size(), 1);
+    }
+    return _types.size() - 1;
+}
 
 void TypeLibrary::SetEffectiveness(uint8_t attacking, uint8_t defensive, float effectiveness) {
     _effectiveness[attacking][defensive] = effectiveness;
diff --git a/src/Library/TypeLibrary.hpp b/src/Library/TypeLibrary.hpp
index dfc25c7..41b4064 100644
--- a/src/Library/TypeLibrary.hpp
+++ b/src/Library/TypeLibrary.hpp
@@ -16,10 +16,11 @@ namespace CreatureLib::Library {
 
         uint8_t GetTypeId(const ConstString& s) const;
         uint8_t GetTypeId(uint32_t s) const;
-        float GetSingleEffectiveness(uint8_t attacking, uint8_t defensive) const;
-        float GetEffectiveness(uint8_t attacking, const std::vector<uint8_t>& defensive) const;
+        [[nodiscard]] float GetSingleEffectiveness(uint8_t attacking, uint8_t defensive) const;
+        [[nodiscard]] float GetEffectiveness(uint8_t attacking, const std::vector<uint8_t>& defensive) const;
 
         uint8_t RegisterType(const ConstString& typeName);
+        uint8_t RegisterType(uint32_t typeHash);
         void SetEffectiveness(uint8_t attacking, uint8_t defensive, float effectiveness);
     };
 }