[Performance] Auto Idle / AFK (#4903)

* [Performance] AFK Client Packet Filtering

* Player feedback

* Update client_packet.cpp

* Fixes

* Streamline updates to SetAFK

* Decouple idling and AFK and manual AFK

* Reset clock timer when we take AFK or idle off

* Exclude bard songs in non combat zones from resetting timer

* GM exclusion adjustments

zone/client.h

@@ -501,9 +501,19 @@ public:
 	void Kick(const std::string &reason);
 	void WorldKick();
 	inline uint8 GetAnon() const { return m_pp.anon; }
-	inline uint8 GetAFK() const { return AFK; }
+	inline uint8 GetAFK() const { return m_is_afk; }
 	void SetAnon(uint8 anon_flag);
+	inline Client* ResetAFKTimer() {
+		if (!RuleB(Character, EnableAutoAFK)) {
+			return this;
+		}
+
+		m_afk_reset = true;
+		m_last_moved = std::chrono::steady_clock::now();
+		return this;
+	};
 	void SetAFK(uint8 afk_flag);
+	inline bool IsIdle() { return m_is_idle; }
 	inline PlayerProfile_Struct& GetPP() { return m_pp; }
 	inline ExtendedProfile_Struct& GetEPP() { return m_epp; }
 	inline EQ::InventoryProfile& GetInv() { return m_inv; }
@@ -2062,7 +2072,8 @@ private:
 	uint8 LFGToLevel;
 	bool LFGMatchFilter;
 	char LFGComments[64];
-	bool AFK;
+	bool m_is_afk = false;
+	bool m_is_manual_afk = false;
 	bool auto_attack;
 	bool auto_fire;
 	bool runmode;
@@ -2216,7 +2227,12 @@ private:
 	glm::vec4 m_last_position_before_bulk_update;
 	Timer     m_client_bulk_npc_pos_update_timer;
 	Timer     m_position_update_timer;
-	void      CheckSendBulkNpcPositions();
+	void      CheckSendBulkNpcPositions(bool force = false);
+
+	// afk
+	bool                                  m_is_idle    = false;
+	bool                                  m_afk_reset  = false; // used to trigger next-tic afk reset
+	std::chrono::steady_clock::time_point m_last_moved = std::chrono::steady_clock::now();
 
 	void BulkSendInventoryItems();
 
@@ -2410,6 +2426,9 @@ public:
 	const std::string &GetMailKey() const;
 	void ShowZoneShardMenu();
 	void Handle_OP_ChangePetName(const EQApplicationPacket *app);
+	bool IsFilteredAFKPacket(const EQApplicationPacket *p);
+	void CheckAutoIdleAFK(PlayerPositionUpdateClient_Struct *p);
+	void SyncWorldPositionsToClient(bool ignore_idle = false);
 };
 
 #endif