Support natures for Pokemon.

src/Library/Natures/NatureLibrary.hpp

@@ -2,6 +2,7 @@
 #define PKMNLIB_NATURELIBRARY_HPP
 
 #include <Core/Exceptions/CreatureException.hpp>
+#include <Core/Random.hpp>
 #include <unordered_map>
 #include <vector>
 #include "Nature.hpp"
@@ -39,6 +40,7 @@ namespace PkmnLib::Library {
         }
 
         const Nature& GetNature(uint8_t id) const { return _natures[id]; }
+        const Nature* GetNaturePtr(uint8_t id) const { return &_natures[id]; }
 
         uint8_t GetNatureIdByName(const std::string& name) const {
             auto find = _keyLookup.find(name);
@@ -47,6 +49,10 @@ namespace PkmnLib::Library {
             }
             return _keyLookup.at(name);
         }
+
+        uint8_t GetRandomNature(CreatureLib::Core::Random rand = CreatureLib::Core::Random()) const{
+            return rand.Get(_current);
+        }
     };
 }