Core/GameEvent: weekend xp rate (#17782)

* Core/GameEvent: weekend xp rate
by kline

* Update to recent code

* compile fix try
things of copy and paste 4 years old code xd

* more code update

* forgot to change this

* Update worldserver.conf.dist

* Added function to calculate weekend event xp rates

By greenbagels

* Cleaning using scripts

* Implement daymask and rename variables etc.

* Rename script file weekend -> boosted

* Update src/server/game/World/World.cpp

Co-Authored-By: Aokromes <Aokromes@users.noreply.github.com>

* Fix xp multiplier not applying to quest rewards

* Disable xp boost script when no boosted days selected

(cherry picked from commit 538c5b86873a4c57e1eb37f0c81c2a7b4552ebc1)

5 files changed, 84 insertions, 0 deletions

diff --git a/src/server/game/World/World.cpp b/src/server/game/World/World.cpp
index da32b6edab3..22e1d89be4f 100644
--- a/src/server/game/World/World.cpp
+++ b/src/server/game/World/World.cpp
@@ -602,6 +602,10 @@ void World::LoadConfigSettings(bool reload)
     rate_values[RATE_XP_BG_KILL]  = sConfigMgr->GetFloatDefault("Rate.XP.BattlegroundKill", 1.0f);
     rate_values[RATE_XP_QUEST]    = sConfigMgr->GetFloatDefault("Rate.XP.Quest", 1.0f);
     rate_values[RATE_XP_EXPLORE]  = sConfigMgr->GetFloatDefault("Rate.XP.Explore", 1.0f);
+
+    m_int_configs[CONFIG_XP_BOOST_DAYMASK] = sConfigMgr->GetIntDefault("XP.Boost.Daymask", 0);
+    rate_values[RATE_XP_BOOST] = sConfigMgr->GetFloatDefault("XP.Boost.Rate", 2.0f);
+
     rate_values[RATE_REPAIRCOST]  = sConfigMgr->GetFloatDefault("Rate.RepairCost", 1.0f);
     if (rate_values[RATE_REPAIRCOST] < 0.0f)
     {
diff --git a/src/server/game/World/World.h b/src/server/game/World/World.h
index 2bc273d7885..aad6025a6b4 100644
--- a/src/server/game/World/World.h
+++ b/src/server/game/World/World.h
@@ -362,6 +362,7 @@ enum WorldIntConfigs
     CONFIG_PERSISTENT_CHARACTER_CLEAN_FLAGS,
     CONFIG_LFG_OPTIONSMASK,
     CONFIG_MAX_INSTANCES_PER_HOUR,
+    CONFIG_XP_BOOST_DAYMASK,
     CONFIG_WARDEN_CLIENT_RESPONSE_DELAY,
     CONFIG_WARDEN_CLIENT_CHECK_HOLDOFF,
     CONFIG_WARDEN_CLIENT_FAIL_ACTION,
@@ -501,6 +502,7 @@ enum Rates
     RATE_DURABILITY_LOSS_ABSORB,
     RATE_DURABILITY_LOSS_BLOCK,
     RATE_MOVESPEED,
+    RATE_XP_BOOST,
     RATE_MONEY_QUEST,
     RATE_MONEY_MAX_LEVEL_QUEST,
     MAX_RATES
diff --git a/src/server/scripts/World/boosted_xp.cpp b/src/server/scripts/World/boosted_xp.cpp
new file mode 100644
index 00000000000..df03dab4a81
--- /dev/null
+++ b/src/server/scripts/World/boosted_xp.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "GameTime.h"
+#include "ScriptMgr.h"
+#include "World.h"
+
+#include <boost/date_time/posix_time/posix_time.hpp>
+
+namespace
+{
+    bool IsXPBoostActive()
+    {
+        auto now = boost::posix_time::to_tm(boost::posix_time::from_time_t(GameTime::GetGameTime()));
+        uint32 weekdayMaskBoosted = sWorld->getIntConfig(CONFIG_XP_BOOST_DAYMASK);
+        uint32 weekdayMask = (1 << now.tm_wday);
+        bool currentDayBoosted = (weekdayMask & weekdayMaskBoosted) != 0;
+        return currentDayBoosted;
+    }
+}
+
+class xp_boost_PlayerScript : public PlayerScript
+{
+public:
+    xp_boost_PlayerScript() : PlayerScript("xp_boost_PlayerScript") { }
+
+    void OnGiveXP(Player* /*player*/, uint32& amount, Unit* /*unit*/) override
+    {
+        if (IsXPBoostActive())
+            amount *= sWorld->getRate(RATE_XP_BOOST);
+    }
+};
+
+void AddSC_xp_boost()
+{
+    new xp_boost_PlayerScript();
+}
diff --git a/src/server/scripts/World/world_script_loader.cpp b/src/server/scripts/World/world_script_loader.cpp
index 0a507b9fe04..ea930bd7529 100644
--- a/src/server/scripts/World/world_script_loader.cpp
+++ b/src/server/scripts/World/world_script_loader.cpp
@@ -32,6 +32,7 @@ void AddSC_npcs_special();
 void AddSC_achievement_scripts();
 void AddSC_action_ip_logger();
 void AddSC_scene_scripts();
+void AddSC_xp_boost();
 // player
 void AddSC_chat_log();
 void AddSC_duel_reset();
@@ -59,4 +60,6 @@ void AddWorldScripts()
     if (sWorld->getBoolConfig(CONFIG_IP_BASED_ACTION_LOGGING))
         AddSC_action_ip_logger(); // location: scripts\World\action_ip_logger.cpp
     AddSC_duel_reset();
+    if (sWorld->getIntConfig(CONFIG_XP_BOOST_DAYMASK) != 0)
+        AddSC_xp_boost();
 }
diff --git a/src/server/worldserver/worldserver.conf.dist b/src/server/worldserver/worldserver.conf.dist
index f9dd474a05a..05d151a8835 100644
--- a/src/server/worldserver/worldserver.conf.dist
+++ b/src/server/worldserver/worldserver.conf.dist
@@ -3155,6 +3155,30 @@ AllowTrackBothResources = 0
 PlayerStart.AllReputation = 0
 
 #
+#    XP.Boost.Daymask
+#        Description: Enables experience boost during the defined days. This field is a bitmask.
+#
+#        Default:     0 - (Disabled)
+#                     1 - (Sunday)
+#                     2 - (Monday)
+#                     4 - (Tuesday)
+#                     8 - (Wednesday)
+#                     16 - (Thrusday)
+#                     32 - (Friday)
+#                     64 - (Saturday)
+#                     65 - (Weekend only)
+#                     127 - (Always active)
+
+XP.Boost.Daymask = 0
+
+#
+#    XP.Boost.Rate
+#        Description: The boost multiplier for experience gain during XP boosted days.
+#        Default:     2.0 - (Double experience)
+
+XP.Boost.Rate = 2.0
+
+#
 #    PlayerStart.AllSpells
 #        Description: If enabled, players will start with all their class spells (not talents).
 #                     You must populate playercreateinfo_spell_custom table with the spells you