feat(Core/Player): Add hooks for reputation price discount calculation. (#24666)

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

@@ -12333,23 +12333,33 @@ bool Player::GetBGAccessByLevel(BattlegroundTypeId bgTypeId) const
 
 float Player::GetReputationPriceDiscount(Creature const* creature) const
 {
-    return GetReputationPriceDiscount(creature->GetFactionTemplateEntry());
+    float discount = GetReputationPriceDiscount(creature->GetFactionTemplateEntry());
+    sScriptMgr->OnPlayerGetReputationPriceDiscount(this, creature, discount);
+    return discount;
 }
 
 float Player::GetReputationPriceDiscount(FactionTemplateEntry const* factionTemplate) const
 {
+    float discount = 1.0f;
+
     if (!factionTemplate || !factionTemplate->faction)
     {
-        return 1.0f;
+        sScriptMgr->OnPlayerGetReputationPriceDiscount(this, factionTemplate, discount);
+        return discount;
     }
 
     ReputationRank rank = GetReputationRank(factionTemplate->faction);
+
     if (rank <= REP_NEUTRAL)
     {
-        return 1.0f;
+        sScriptMgr->OnPlayerGetReputationPriceDiscount(this, factionTemplate, discount);
+        return discount;
     }
 
-    return 1.0f - 0.05f * (rank - REP_NEUTRAL);
+    discount = discount - 0.05f * (rank - REP_NEUTRAL);
+
+    sScriptMgr->OnPlayerGetReputationPriceDiscount(this, factionTemplate, discount);
+    return discount;
 }
 
 bool Player::IsSpellFitByClassAndRace(uint32 spell_id) const

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

@@ -910,6 +910,16 @@ void ScriptMgr::OnPlayerSendListInventory(Player* player, ObjectGuid vendorGuid,
     CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_SEND_LIST_INVENTORY, script->OnPlayerSendListInventory(player, vendorGuid, vendorEntry));
 }
 
+void ScriptMgr::OnPlayerGetReputationPriceDiscount(Player const* player, Creature const* creature, float& discount)
+{
+    CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_GET_REPUTATION_PRICE_DISCOUNT, script->OnPlayerGetReputationPriceDiscount(player, creature, discount));
+}
+
+void ScriptMgr::OnPlayerGetReputationPriceDiscount(Player const* player, FactionTemplateEntry const* factionTemplate, float& discount)
+{
+    CALL_ENABLED_HOOKS(PlayerScript, PLAYERHOOK_ON_GET_REPUTATION_PRICE_DISCOUNT, script->OnPlayerGetReputationPriceDiscount(player, factionTemplate, discount));
+}
+
 PlayerScript::PlayerScript(const char* name, std::vector<uint16> enabledHooks)
     : ScriptObject(name, PLAYERHOOK_END)
 {

src/server/game/Scripting/ScriptDefines/PlayerScript.h

@@ -20,6 +20,7 @@
 
 #include "ScriptObject.h"
 #include "SharedDefines.h"
+#include "DBCStructure.h"
 #include <vector>
 
 // TODO to remove
@@ -207,6 +208,7 @@ enum PlayerHook
     PLAYERHOOK_ON_CAN_GIVE_LEVEL,
     PLAYERHOOK_ON_SEND_LIST_INVENTORY,
     PLAYERHOOK_ON_GIVE_REPUTATION,
+    PLAYERHOOK_ON_GET_REPUTATION_PRICE_DISCOUNT,
     PLAYERHOOK_END
 };
 
@@ -796,6 +798,24 @@ public:
      * @param vendorEntry Entry of the vendor player is interacting with
      */
     virtual void OnPlayerSendListInventory(Player* /*player*/, ObjectGuid /*vendorGuid*/, uint32& /*vendorEntry*/) {}
+
+    /**
+     * @brief This hook is called whenever a player attempts to buy items, repair, take taxis, or learn spells. This then uses this information to call OnPlayerGetReputationPriceDiscoun(Player, FactionTemplateEntry, float)
+     *
+     * @param player Contains information about the Player
+     * @param creature Contains information about the creature involved in the transaction
+     * @param discount Float value of the discount, as a multiplier of the base price
+     */
+    virtual void OnPlayerGetReputationPriceDiscount(Player const* /*player*/, Creature const* /*creature*/, float& /*discount*/) {}
+
+    /**
+     * @brief This hook is called whenever a player attempts to buy items, repair, take taxis, or learn spells. It is also called when continuing along taxis
+     *
+     * @param player Contains information about the Player
+     * @param factionTemplate Contains information about the faction template involved in the transaction. Can be null!
+     * @param discount Float value of the discount, as a multiplier of the base price
+     */
+    virtual void OnPlayerGetReputationPriceDiscount(Player const* /*player*/, FactionTemplateEntry const* /*factionTemplate*/, float& /*discount*/) {}
 };
 
 #endif

src/server/game/Scripting/ScriptMgr.h

@@ -462,6 +462,8 @@ public: /* PlayerScript */
     bool OnPlayerCanResurrect(Player* player);
     bool OnPlayerCanGiveLevel(Player* player, uint8 newLevel);
     void OnPlayerSendListInventory(Player* player, ObjectGuid vendorGuid, uint32& vendorEntry);
+    void OnPlayerGetReputationPriceDiscount(Player const* player, Creature const* creature, float& discount);
+    void OnPlayerGetReputationPriceDiscount(Player const* player, FactionTemplateEntry const* factionTemplate, float& discount);
 
     // Anti cheat
     void AnticheatSetCanFlybyServer(Player* player, bool apply);