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diff --git a/game/server/hl1/hl1_npc_barnacle.h b/game/server/hl1/hl1_npc_barnacle.h
new file mode 100644
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+++ b/game/server/hl1/hl1_npc_barnacle.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:		Base combat character with no AI
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef	HL1_NPC_BARNACLE_H
+#define	HL1_NPC_BARNACLE_H
+
+#include "hl1_ai_basenpc.h"
+#include "rope_physics.h"
+
+#define	BARNACLE_BODY_HEIGHT	44 // how 'tall' the barnacle's model is.
+#define BARNACLE_PULL_SPEED			8
+#define BARNACLE_KILL_VICTIM_DELAY	5 // how many seconds after pulling prey in to gib them. 
+
+//=========================================================
+// Monster's Anim Events Go Here
+//=========================================================
+#define	BARNACLE_AE_PUKEGIB	2
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CNPC_Barnacle : public CHL1BaseNPC
+{
+	DECLARE_CLASS( CNPC_Barnacle, CHL1BaseNPC );
+
+public:
+	void			Spawn( void );
+	void			InitTonguePosition( void );
+	void			Precache( void );
+	CBaseEntity*	TongueTouchEnt ( float *pflLength );
+	Class_T			Classify ( void );
+	void			HandleAnimEvent( animevent_t *pEvent );
+	void			BarnacleThink ( void );
+	void			WaitTillDead ( void );
+	void			Event_Killed( const CTakeDamageInfo &info );
+	int				OnTakeDamage_Alive( const CTakeDamageInfo &info );
+
+	DECLARE_DATADESC();
+
+	float			m_flAltitude;
+
+	float			m_flKillVictimTime;
+	int				m_cGibs;// barnacle loads up on gibs each time it kills something.
+	bool			m_fLiftingPrey;
+	float			m_flTongueAdj;
+	float			m_flIgnoreTouchesUntil;
+
+public:
+	DEFINE_CUSTOM_AI;
+};
+
+#endif	//HL1_NPC_BARNACLE_H