feat(Core): CanAccountCreateCharacter hook (#13020)

src/server/game/Handlers/CharacterHandler.cpp

@@ -432,6 +432,11 @@ void WorldSession::HandleCharCreateOpcode(WorldPacket& recvData)
 
         std::function<void(PreparedQueryResult)> finalizeCharacterCreation = [this, createInfo](PreparedQueryResult result)
         {
+            if (!sScriptMgr->CanAccountCreateCharacter(createInfo, GetAccountId()))
+            {
+                SendCharCreate(CHAR_CREATE_DISABLED);
+                return;
+            }
             bool haveSameRace = false;
             uint32 heroicReqLevel = sWorld->getIntConfig(CONFIG_CHARACTER_CREATING_MIN_LEVEL_FOR_HEROIC_CHARACTER);
             bool hasHeroicReqLevel = (heroicReqLevel == 0);

src/server/game/Scripting/ScriptDefines/AccountScript.cpp

@@ -81,3 +81,18 @@ void ScriptMgr::OnFailedPasswordChange(uint32 accountId)
         script->OnFailedPasswordChange(accountId);
     });
 }
+
+bool ScriptMgr::CanAccountCreateCharacter(std::shared_ptr<CharacterCreateInfo> createInfo, uint32 accountId)
+{
+    auto ret = IsValidBoolScript<AccountScript>([&](AccountScript* script)
+    {
+        return !script->CanAccountCreateCharacter(createInfo, accountId);
+    });
+
+    if (ret && *ret)
+    {
+        return false;
+    }
+
+    return true;
+}

src/server/game/Scripting/ScriptMgr.h

@@ -73,6 +73,7 @@ class Vehicle;
 class WorldObject;
 class WorldPacket;
 class WorldSocket;
+class CharacterCreateInfo;
 
 struct AchievementCriteriaData;
 struct AuctionEntry;
@@ -1458,6 +1459,9 @@ public:
 
     // Called when Password failed to change for Account
     virtual void OnFailedPasswordChange(uint32 /*accountId*/) { }
+
+    // Called when creating a character on the Account
+    [[nodiscard]] virtual bool CanAccountCreateCharacter(std::shared_ptr<CharacterCreateInfo> /*createInfo*/, uint32 /*accountId*/) { return true;}
 };
 
 class GuildScript : public ScriptObject
@@ -2356,6 +2360,7 @@ public: /* AccountScript */
     void OnFailedEmailChange(uint32 accountId);
     void OnPasswordChange(uint32 accountId);
     void OnFailedPasswordChange(uint32 accountId);
+    bool CanAccountCreateCharacter(std::shared_ptr<CharacterCreateInfo> createInfo, uint32 accountId);
 
 public: /* GuildScript */
     void OnGuildAddMember(Guild* guild, Player* player, uint8& plRank);