Added lots of security using asserts.

src/Battling/Models/BattleSide.cpp

@@ -8,6 +8,7 @@ using namespace CreatureLib::Battling;
 bool BattleSide::AllChoicesSet() const { return _choicesSet == _creaturesPerSide; }
 
 bool BattleSide::AllPossibleSlotsFilled() const {
+    AssertNotNull(_battle)
     for (size_t i = 0; i < _creatures.size(); i++) {
         auto c = _creatures[i];
         if (c == nullptr || c->IsFainted()) {
@@ -28,6 +29,7 @@ void BattleSide::ResetChoices() {
 const std::vector<BaseTurnChoice*>& BattleSide::GetChoices() const { return _choices; }
 
 void BattleSide::SetChoice(BaseTurnChoice* choice) {
+    AssertNotNull(choice)
     auto find = std::find(_creatures.begin(), _creatures.end(), choice->GetUser());
     if (find == _creatures.end())
         throw CreatureException("User not found");
@@ -37,6 +39,7 @@ void BattleSide::SetChoice(BaseTurnChoice* choice) {
 }
 
 void BattleSide::SetCreature(Creature* creature, uint8_t index) {
+    AssertNotNull(creature)
     auto old = _creatures[index];
     if (old != nullptr) {
         old->SetOnBattleField(false);
@@ -59,6 +62,7 @@ void BattleSide::SetCreature(Creature* creature, uint8_t index) {
 }
 
 bool BattleSide::CreatureOnSide(const Creature* creature) const {
+    AssertNotNull(creature)
     return std::find(_creatures.begin(), _creatures.end(), creature) != _creatures.end();
 }
 
@@ -70,5 +74,6 @@ void BattleSide::GetActiveScripts(std::vector<ScriptWrapper>& scripts) {
 }
 uint8_t BattleSide::GetRandomCreatureIndex() {
     // TODO: Consider adding parameter to only get index for available creatures.
+    AssertNotNull(_battle)
     return _battle->GetRandom()->Get(_creaturesPerSide);
 }