nullptr fix

* Revert "[Large server fix] #1537 Serialize playerBots/botLoading with a mutex and use snapshot-based loops to fix concurrency crashes (#1540)"

This reverts commit 3fff58df1a.

* Revert "[Fix] teleport to invalid map or invalid coordinates (x , y , z  200000, o ) given when teleporting player (g UI d full type player low , name , map , x , y , z , o )  (#1538)"

This reverts commit ca2e2ef0db.

* Revert "Fix: prevent MoveSplineInitArgs::Validate velocity asserts (velocity > 0.01f) for bots, pets, and charmed units (#1534)"

This reverts commit 4e3ac609bd.

* Revert "[Fix issue #1527] : startup crash in tank target selection — add TOCTOU & null-safety guards (#1532)"

This reverts commit c6b0424c29.

* Revert "[Fix issue #1528] Close small window where the “in a BG/arena” state can change between the check (InBattleground() / InArena()) and grabbing the pointer (GetBattleground()), which leads to a null dereference. (#1530)"

This reverts commit 2e0a161623.

* Revert "Harden playerbot logout & packet dispatch; add null-safety in chat hooks and RPG checks (#1529)"

This reverts commit e4ea8e2694.

* Revert "Dont wait to travel when in combat. (#1524)"

This reverts commit ddfa919154.

* Revert "nullptr fix (#1523)"

This reverts commit 380312ffd2.

* Revert "Playerbots/LFG: fix false not eligible & dungeon 0/type 0, add clear diagnostics (#1521)"

This reverts commit 872e417613.

* Revert "nullptr exception (#1520)"

This reverts commit 3d28a81508.

* Revert "Removed bot freezing at startup and system message, not relevant anymore (#1519)"

This reverts commit bcd6f5bc06.

src/PlayerbotAI.cpp

@@ -4214,6 +4214,19 @@ bool PlayerbotAI::AllowActive(ActivityType activityType)
         }
     }
 
+    // only keep updating till initializing time has completed,
+    // which prevents unneeded expensive GameTime calls.
+    if (_isBotInitializing)
+    {
+        _isBotInitializing = GameTime::GetUptime().count() < sPlayerbotAIConfig->maxRandomBots * 0.11;
+
+        // no activity allowed during bot initialization
+        if (_isBotInitializing)
+        {
+            return false;
+        }
+    }
+
     // General exceptions
     if (activityType == PACKET_ACTIVITY)
     {

src/PlayerbotAI.h

@@ -611,6 +611,7 @@ private:
     Item* FindItemInInventory(std::function<bool(ItemTemplate const*)> checkItem) const;
     void HandleCommands();
     void HandleCommand(uint32 type, const std::string& text, Player& fromPlayer, const uint32 lang = LANG_UNIVERSAL);
+    bool _isBotInitializing = false;
 
 protected:
     Player* bot;

src/Playerbots.cpp

@@ -108,7 +108,7 @@ public:
                     "|cffcccccchttps://github.com/liyunfan1223/mod-playerbots|r");
             }
 
-            /*if (sPlayerbotAIConfig->enabled || sPlayerbotAIConfig->randomBotAutologin)
+            if (sPlayerbotAIConfig->enabled || sPlayerbotAIConfig->randomBotAutologin)
             {
                 std::string roundedTime =
                     std::to_string(std::ceil((sPlayerbotAIConfig->maxRandomBots * 0.11 / 60) * 10) / 10.0);
@@ -117,7 +117,7 @@ public:
                 ChatHandler(player->GetSession()).SendSysMessage(
                     "|cff00ff00Playerbots:|r bot initialization at server startup takes about '" 
                     + roundedTime + "' minutes.");
-            }*/
+            }
         }
     }
 

src/factory/PlayerbotFactory.cpp

@@ -164,16 +164,15 @@ void PlayerbotFactory::Init()
         {
             continue;
         }
-        
         ItemTemplate const* proto = sObjectMgr->GetItemTemplate(gemId);
-        if (proto) {
+
         if (proto->ItemLevel < 60)
             continue;
 
         if (proto->Flags & ITEM_FLAG_UNIQUE_EQUIPPABLE)
+        {
             continue;
         }
-        
         if (sRandomItemMgr->IsTestItem(gemId))
             continue;
 
@@ -181,11 +180,9 @@ void PlayerbotFactory::Init()
         {
             continue;
         }
-        
         // LOG_INFO("playerbots", "Add {} to enchantment gems", gemId);
         enchantGemIdCache.push_back(gemId);
     }
-    
     LOG_INFO("playerbots", "Loading {} enchantment gems", enchantGemIdCache.size());
 }
 
@@ -1022,7 +1019,8 @@ void PlayerbotFactory::ClearSkills()
     bot->SetUInt32Value(PLAYER_SKILL_INDEX(1), 0);
     
     // unlearn default race/class skills
-    if (PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass())) {
+    if (PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass()))
+    {    
         for (PlayerCreateInfoSkills::const_iterator itr = info->skills.begin(); itr != info->skills.end(); ++itr)
         {
             uint32 skillId = itr->SkillId;