fix(Core/Loot): (#7452)

- Players that did not participate in killing dungeon boss are not eligible to get loot.
- Players that are too far away from the looted object are not eligible to get loot.
- Players that released spirit and were outside the dungeon when the loot has been released are eligible to get loot.
- Players that have pending bind are not eligible to get loot.
- Properly get loot recipient for some chests in dungeons.
- All above fixes should work in any loot mode (group loot, master loot, etc.)
- Closes #2104.

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

@@ -7560,7 +7560,7 @@ void Player::SendLoot(ObjectGuid guid, LootType loot_type)
                 if (groupRules)
                     group->UpdateLooterGuid(go, true);
 
-                loot->FillLoot(lootid, LootTemplates_Gameobject, this, !groupRules, false, go->GetLootMode());
+                loot->FillLoot(lootid, LootTemplates_Gameobject, this, !groupRules, false, go->GetLootMode(), go);
                 go->SetLootGenerationTime();
 
                 // get next RR player (for next loot)
@@ -11846,18 +11846,40 @@ void Player::RewardPlayerAndGroupAtEvent(uint32 creature_id, WorldObject* pRewar
 
 bool Player::IsAtGroupRewardDistance(WorldObject const* pRewardSource) const
 {
-    if (!pRewardSource || !IsInMap(pRewardSource))
-        return false;
-    const WorldObject* player = GetCorpse();
+    WorldObject const* player = GetCorpse();
     if (!player || IsAlive())
+    {
         player = this;
+    }
+
+    if (!pRewardSource || !player->IsInMap(pRewardSource))
+    {
+        return false;
+    }
 
     if (pRewardSource->GetMap()->IsDungeon())
+    {
         return true;
+    }
 
     return pRewardSource->GetDistance(player) <= sWorld->getFloatConfig(CONFIG_GROUP_XP_DISTANCE);
 }
 
+bool Player::IsAtLootRewardDistance(WorldObject const* pRewardSource) const
+{
+    if (!IsAtGroupRewardDistance(pRewardSource))
+    {
+        return false;
+    }
+
+    if (HasPendingBind())
+    {
+        return false;
+    }
+
+    return pRewardSource->HasAllowedLooter(GetGUID());
+}
+
 bool Player::IsAtRecruitAFriendDistance(WorldObject const* pOther) const
 {
     if (!pOther)

src/server/game/Entities/Player/Player.h

@@ -1996,6 +1996,7 @@ public:
     void InitDisplayIds();
 
     bool IsAtGroupRewardDistance(WorldObject const* pRewardSource) const;
+    bool IsAtLootRewardDistance(WorldObject const* pRewardSource) const;
     bool IsAtRecruitAFriendDistance(WorldObject const* pOther) const;
     void RewardPlayerAndGroupAtKill(Unit* victim, bool isBattleGround);
     void RewardPlayerAndGroupAtEvent(uint32 creature_id, WorldObject* pRewardSource);