feat(Core/Config): Add configurable XP rate for battleground objectives (#24672)

src/server/apps/worldserver/worldserver.conf.dist

@@ -2421,6 +2421,13 @@ Rate.XP.BattlegroundKillEOTS = 1
 Rate.XP.BattlegroundKillSOTA = 1
 Rate.XP.BattlegroundKillIC   = 1
 
+#
+#    Rate.XP.BattlegroundBonus
+#        Description: Experience rate multiplier for battleground objectives (flag captures, base assaults, etc.).
+#        Default:     1
+
+Rate.XP.BattlegroundBonus = 1
+
 #
 #    Rate.Pet.LevelXP
 #        Description: Modifies the amount of experience required to level up a pet.

src/server/game/Entities/Player/Player.cpp

@@ -6217,7 +6217,7 @@ bool Player::RewardHonor(Unit* uVictim, uint32 groupsize, int32 honor, bool awar
             // Xinef: Only for BG activities
             if (!uVictim)
             {
-                uint32 xp = uint32(honor * (3 + GetLevel() * 0.30f));
+                uint32 xp = static_cast<uint32>(honor * (3 + GetLevel() * 0.30f) * sWorld->getRate(RATE_XP_BATTLEGROUND_BONUS));
                 sScriptMgr->OnPlayerGiveXP(this, xp, nullptr, PlayerXPSource::XPSOURCE_BATTLEGROUND);
                 GiveXP(xp, nullptr);
             }

src/server/game/World/WorldConfig.cpp

@@ -64,6 +64,7 @@ void WorldConfig::BuildConfigCache()
     SetConfigValue<float>(RATE_XP_EXPLORE, "Rate.XP.Explore", 1.0f);
     SetConfigValue<float>(RATE_XP_PET, "Rate.XP.Pet", 1.0f);
     SetConfigValue<float>(RATE_XP_PET_NEXT_LEVEL, "Rate.Pet.LevelXP", 0.05f);
+    SetConfigValue<float>(RATE_XP_BATTLEGROUND_BONUS, "Rate.XP.BattlegroundBonus", 1.0f);
     SetConfigValue<float>(RATE_REPAIRCOST, "Rate.RepairCost", 1.0f, ConfigValueCache::Reloadable::Yes, [](float const& value) { return value >= 0.0f; }, ">= 0");
 
     SetConfigValue<float>(RATE_SELLVALUE_ITEM_POOR, "Rate.SellValue.Item.Poor", 1.0f);

src/server/game/World/WorldConfig.h

@@ -437,6 +437,7 @@ enum ServerConfigs
     RATE_XP_EXPLORE,
     RATE_XP_PET,
     RATE_XP_PET_NEXT_LEVEL,
+    RATE_XP_BATTLEGROUND_BONUS,
     RATE_REPAIRCOST,
     RATE_REPUTATION_GAIN,
     RATE_REPUTATION_GAIN_AB,