Make all individual scripts smart pointers.

src/Battling/Models/ExecutingAttack.hpp

@@ -41,24 +41,25 @@ namespace CreatureLib::Battling {
         HitData* _hits;
         Creature* _user;
         ArbUt::BorrowedPtr<LearnedAttack> _attack;
-        Script* _script;
+        std::unique_ptr<Script> _script = nullptr;
 
     public:
         ExecutingAttack(const ArbUt::List<ArbUt::BorrowedPtr<Creature>>& targets, uint8_t numberHits, Creature* user,
-                        const ArbUt::BorrowedPtr<LearnedAttack>& attack, Script* script)
+                        const ArbUt::BorrowedPtr<LearnedAttack>& attack, const std::unique_ptr<Script>& script)
             : _targets(targets.Count()), _numberHits(numberHits), _hits(new HitData[targets.Count() * numberHits]),
-              _user(user), _attack(attack), _script(script) {
+              _user(user), _attack(attack) {
             AssertNotNull(user)
             AssertNotNull(attack)
             for (auto target : targets) {
                 _targets.Append(target);
             }
+            // Take ownership of the script of the attack choice, and give attack choice our initial nullptr.
+            _script.swap(const_cast<std::unique_ptr<Script>&>(script));
         }
         ExecutingAttack(const ExecutingAttack&) = delete;
         ExecutingAttack& operator=(const ExecutingAttack&) = delete;
 
         virtual ~ExecutingAttack() noexcept {
-            delete _script;
             delete[] _hits;
         };