Harden item pickup validation

src/game/char.h

@@ -2049,6 +2049,8 @@ class CHARACTER : public CEntity, public CFSM, public CHorseRider
 	public:
 		int					LastDropTime;
 		int					CountDrops;
+		DWORD				m_dwPickupWindowStart;
+		int					m_iPickupWindowCount;
 		void ClearPMCounter(void)       { m_iPMCounter = 0;      } 
 		void IncreasePMCounter(void)    { m_iPMCounter++;        }
 		void SetLastPMPulse(void);