Added lots of security using asserts.

src/Battling/Models/BattleParty.hpp

@@ -1,9 +1,9 @@
 #ifndef CREATURELIB_BATTLEPARTY_HPP
 #define CREATURELIB_BATTLEPARTY_HPP
 
+#include <Arbutils/Assert.hpp>
 #include "CreatureIndex.hpp"
 #include "CreatureParty.hpp"
-
 namespace CreatureLib::Battling {
     class BattleParty {
         CreatureParty* _party;
@@ -11,7 +11,9 @@ namespace CreatureLib::Battling {
 
     public:
         BattleParty(CreatureParty* party, std::vector<CreatureIndex> responsibleIndices)
-            : _party(party), _responsibleIndices(responsibleIndices) {}
+            : _party(party), _responsibleIndices(responsibleIndices) {
+            AssertNotNull(_party)
+        }
 
         inline CreatureParty* GetParty() const { return _party; }
         inline const std::vector<CreatureIndex>& GetResponsibleIndices() const { return _responsibleIndices; }