1 files changed, 179 insertions, 0 deletions
diff --git a/game/server/hl2/npc_hydra.h b/game/server/hl2/npc_hydra.h
new file mode 100644
index 0000000..253dbe0
--- /dev/null
+++ b/game/server/hl2/npc_hydra.h
@@ -0,0 +1,179 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef NPC_HYDRA_H
+#define NPC_HYDRA_H
+
+#if defined( _WIN32 )
+#pragma once
+#endif
+
+#include "ai_basenpc.h"
+#include "soundenvelope.h"
+
+class CNPC_Hydra;
+
+//-----------------------------------------------------------------------------
+// CNPC_Hydra
+//
+//-----------------------------------------------------------------------------
+
+class HydraBone
+{
+public:
+	HydraBone( void )
+	{
+		vecPos = Vector( 0, 0, 0 );
+		vecDelta = Vector( 0, 0, 0 );
+		//vecBendDelta = Vector( 0, 0, 0 );
+		//vecGoalDelta = Vector( 0, 0, 0 );
+		//flBendTension = 0.0;
+		flIdealLength = 1.0;
+		flGoalInfluence = 0.0;
+		bStuck = false;
+		bOnFire = false;
+	};
+
+	Vector vecPos;
+	Vector vecDelta;
+	//float flBendTension;
+	float flIdealLength;
+	bool bStuck;
+	bool bOnFire;
+
+	float	flActualLength;
+	//Vector	vecBendDelta;
+	//Vector	vecGoalDelta;
+	// float	flAccumLength;
+
+	Vector	vecGoalPos;
+	float	flGoalInfluence;
+
+	DECLARE_SIMPLE_DATADESC();
+};
+
+class CNPC_Hydra : public CAI_BaseNPC
+{
+	DECLARE_CLASS( CNPC_Hydra, CAI_BaseNPC );
+	DECLARE_SERVERCLASS();
+	DECLARE_DATADESC();
+
+public:
+	CNPC_Hydra()
+	{
+	}
+
+	void		Spawn( void );
+	void		Precache( void );
+	void		Activate( void );
+
+	Class_T		Classify( void );
+
+	void		RunAI( void );
+
+	float		MaxYawSpeed( void );
+	int			TranslateSchedule( int scheduleType );
+	int			SelectSchedule( void );
+
+	void		PrescheduleThink( void );
+
+	void        HandleAnimEvent( animevent_t *pEvent );
+
+	void		StartTask( const Task_t *pTask );
+	void		RunTask( const Task_t *pTask );
+
+#define			CHAIN_LINKS 32
+
+	CNetworkArray( Vector, m_vecChain, CHAIN_LINKS );
+	int			m_activeChain;
+
+	bool		m_bHasStuckSegments;
+	float		m_flCurrentLength;
+
+	Vector		m_vecHeadGoal;
+	float		m_flHeadGoalInfluence;
+	CNetworkVector( m_vecHeadDir );
+
+	CNetworkVar( float, m_flRelaxedLength );
+
+	Vector		m_vecOutward;
+
+	CUtlVector < HydraBone >	m_body;
+
+	float		m_idealLength;
+	float		m_idealSegmentLength;
+
+	Vector		TestPosition( float t );
+
+	void		CalcGoalForces( void );
+	void		MoveBody( void );
+
+	void		AdjustLength( void );
+	void		CheckLength( void );
+
+	bool		m_bExtendSoundActive;
+	CSoundPatch		*m_pExtendTentacleSound;
+
+	void		Nudge( CBaseEntity *pHitEntity, const Vector &vecContact, const Vector &vecSpeed );
+	void		Stab( CBaseEntity *pHitEntity, const Vector &vecSpeed, trace_t &ptr );
+	void		Kick( CBaseEntity *pHitEntity, const Vector &vecContact, const Vector &vecSpeed );
+	void		Splash( const Vector &vecSplashPos );
+
+	// float		FreeNeckLength( void );
+
+	virtual Vector		EyePosition( void );
+	virtual const QAngle &EyeAngles( void );
+
+	virtual	Vector		BodyTarget( const Vector &posSrc, bool bNoisy) ;
+
+	void		AimHeadInTravelDirection( float flInfluence );
+
+	float		m_seed;
+
+	// --------------------------------
+	Vector		m_vecTarget;
+	Vector		m_vecTargetDir;
+
+	float		m_flLastAdjustmentTime;
+	float		m_flTaskStartTime;
+	float		m_flTaskEndTime;
+
+	float		m_flLengthTime;	// time of last successful length adjustment time
+
+	// --------------------------------
+
+	bool		ContractFromHead( void );
+	bool		ContractBetweenStuckSegments( void );
+	bool		ContractFromRoot( void );
+
+	int			VirtualRoot( void );
+
+	bool		AddNodeBefore( int iNode );
+	bool		AddNodeAfter( int iNode );
+
+	bool		GrowFromVirtualRoot( void );
+	bool		GrowFromMostStretched( void );
+
+	void		CalcRelaxedLength( void );
+
+	bool		IsValidConnection( int iNode0, int iNode1 );
+
+	void		AttachStabbedEntity( CBaseAnimating *pAnimating, Vector vecForce, trace_t &tr );
+	void		UpdateStabbedEntity( void );
+	void		DetachStabbedEntity( bool playSound );
+	void		GetDesiredImpaledPosition( Vector *vecOrigin, QAngle *vecAngles );
+
+	bool		m_bStabbedEntity;
+
+	DEFINE_CUSTOM_AI;
+
+private:
+};
+
+//-----------------------------------------------------------------------------
+
+#endif // NPC_HYDRA_H