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diff --git a/game/server/physobj.h b/game/server/physobj.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef PHYSOBJ_H
+#define PHYSOBJ_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#ifndef PHYSICS_H
+#include "physics.h"
+#endif
+
+#include "entityoutput.h"
+#include "func_break.h"
+#include "player_pickup.h"
+
+// ---------------------------------------------------------------------
+//
+// CPhysBox -- physically simulated brush rectangular solid
+//
+// ---------------------------------------------------------------------
+// Physbox Spawnflags. Start at 0x01000 to avoid collision with CBreakable's
+#define SF_PHYSBOX_ASLEEP					0x01000
+#define SF_PHYSBOX_IGNOREUSE				0x02000
+#define SF_PHYSBOX_DEBRIS					0x04000
+#define SF_PHYSBOX_MOTIONDISABLED			0x08000
+#define SF_PHYSBOX_USEPREFERRED				0x10000
+#define SF_PHYSBOX_ENABLE_ON_PHYSCANNON		0x20000
+#define SF_PHYSBOX_NO_ROTORWASH_PUSH		0x40000		// The rotorwash doesn't push these
+#define SF_PHYSBOX_ENABLE_PICKUP_OUTPUT		0x80000
+#define SF_PHYSBOX_ALWAYS_PICK_UP		    0x100000		// Physcannon can always pick this up, no matter what mass or constraints may apply.
+#define SF_PHYSBOX_NEVER_PICK_UP			0x200000		// Physcannon will never be able to pick this up.
+#define SF_PHYSBOX_NEVER_PUNT				0x400000		// Physcannon will never be able to punt this object.
+#define SF_PHYSBOX_PREVENT_PLAYER_TOUCH_ENABLE 0x800000		// If set, the player will not cause the object to enable its motion when bumped into
+
+// UNDONE: Hook collisions into the physics system to generate touch functions and take damage on falls
+// UNDONE: Base class PhysBrush
+class CPhysBox : public CBreakable
+{
+DECLARE_CLASS( CPhysBox, CBreakable );
+
+public:
+	DECLARE_SERVERCLASS();
+
+	void	Spawn ( void );
+	bool	CreateVPhysics();
+	void	Move( const Vector &force );
+	virtual int ObjectCaps();
+	virtual void Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
+	
+	virtual int DrawDebugTextOverlays(void);
+
+	virtual void VPhysicsUpdate( IPhysicsObject *pPhysics );
+	virtual void VPhysicsCollision( int index, gamevcollisionevent_t *pEvent );
+	int		OnTakeDamage( const CTakeDamageInfo &info );
+	void		 EnableMotion( void );
+
+	bool CanBePickedUpByPhyscannon();
+
+	// IPlayerPickupVPhysics
+	virtual void OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason );
+	virtual void OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t Reason );
+
+	bool		 HasPreferredCarryAnglesForPlayer( CBasePlayer *pPlayer );
+	virtual QAngle PreferredCarryAngles( void ) { return m_angPreferredCarryAngles; }
+
+	// inputs
+	void InputWake( inputdata_t &inputdata );
+	void InputSleep( inputdata_t &inputdata );
+	void InputEnableMotion( inputdata_t &inputdata );
+	void InputDisableMotion( inputdata_t &inputdata );
+	void InputForceDrop( inputdata_t &inputdata );
+	void InputDisableFloating( inputdata_t &inputdata );
+
+	DECLARE_DATADESC();
+	
+protected:
+	int				m_damageType;
+	float			m_massScale;
+	string_t		m_iszOverrideScript;
+	int				m_damageToEnableMotion;
+	float			m_flForceToEnableMotion;
+	QAngle			m_angPreferredCarryAngles;
+	bool			m_bNotSolidToWorld;
+
+	// Outputs
+	COutputEvent	m_OnDamaged;
+	COutputEvent	m_OnAwakened;
+	COutputEvent	m_OnMotionEnabled;
+	COutputEvent	m_OnPhysGunPickup;
+	COutputEvent	m_OnPhysGunPunt;
+	COutputEvent	m_OnPhysGunOnlyPickup;
+	COutputEvent	m_OnPhysGunDrop;
+	COutputEvent	m_OnPlayerUse;
+
+	CHandle<CBasePlayer>	m_hCarryingPlayer;	// Player who's carrying us
+};
+
+// ---------------------------------------------------------------------
+//
+// CPhysExplosion -- physically simulated explosion
+//
+// ---------------------------------------------------------------------
+class CPhysExplosion : public CPointEntity
+{
+public:
+	DECLARE_CLASS( CPhysExplosion, CPointEntity );
+
+	void	Spawn ( void );
+	void	Explode( CBaseEntity *pActivator, CBaseEntity *pCaller );
+
+	CBaseEntity *FindEntity( CBaseEntity *pEntity, CBaseEntity *pActivator, CBaseEntity *pCaller );
+
+	int DrawDebugTextOverlays(void);
+
+	// Input handlers
+	void InputExplode( inputdata_t &inputdata );
+
+	DECLARE_DATADESC();
+private:
+	
+	float		GetRadius( void );
+
+	float		m_damage;
+	float		m_radius;
+	string_t	m_targetEntityName;
+	float		m_flInnerRadius;
+	
+	COutputEvent	m_OnPushedPlayer;	
+};
+
+
+//==================================================
+// CPhysImpact
+//==================================================
+
+class CPhysImpact : public CPointEntity
+{
+public:
+	DECLARE_CLASS( CPhysImpact, CPointEntity );
+
+	void		Spawn( void );
+	//void		Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
+	void		Activate( void );
+
+	void		InputImpact( inputdata_t &inputdata );
+
+	DECLARE_DATADESC();
+
+private:
+
+	void		PointAtEntity( void );
+
+	float		m_damage;
+	float		m_distance;
+	string_t	m_directionEntityName;
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: A magnet that creates constraints between itself and anything it touches 
+//-----------------------------------------------------------------------------
+
+struct magnetted_objects_t
+{
+	IPhysicsConstraint *pConstraint;
+	EHANDLE			   hEntity;
+
+	DECLARE_SIMPLE_DATADESC();
+};
+
+class CPhysMagnet : public CBaseAnimating, public IPhysicsConstraintEvent
+{
+	DECLARE_CLASS( CPhysMagnet, CBaseAnimating );
+public:
+	DECLARE_DATADESC();
+	DECLARE_SERVERCLASS();
+
+	CPhysMagnet();
+	~CPhysMagnet();
+
+	void	Spawn( void );
+	void	Precache( void );
+	void	Touch( CBaseEntity *pOther );
+	void	VPhysicsCollision( int index, gamevcollisionevent_t *pEvent );
+	void	DoMagnetSuck( CBaseEntity *pOther );
+	void	SetConstraintGroup( IPhysicsConstraintGroup *pGroup );
+
+	bool	IsOn( void ) { return m_bActive; }
+	int		GetNumAttachedObjects( void );
+	float	GetTotalMassAttachedObjects( void );
+	CBaseEntity *GetAttachedObject( int iIndex );
+
+	// Checking for hitting something
+	void	ResetHasHitSomething( void ) { m_bHasHitSomething = false; }
+	bool	HasHitSomething( void ) { return m_bHasHitSomething; }
+
+	// Inputs
+	void	InputToggle( inputdata_t &inputdata );
+	void	InputTurnOn( inputdata_t &inputdata );
+	void	InputTurnOff( inputdata_t &inputdata );
+
+	void	InputConstraintBroken( inputdata_t &inputdata );
+
+	void	DetachAll( void );
+
+// IPhysicsConstraintEvent
+public:
+	void	ConstraintBroken( IPhysicsConstraint *pConstraint );
+	
+protected:
+	// Outputs
+	COutputEvent	m_OnMagnetAttach;
+	COutputEvent	m_OnMagnetDetach;
+
+	// Keys
+	float			m_massScale;
+	string_t		m_iszOverrideScript;
+	float			m_forceLimit;
+	float			m_torqueLimit;
+
+	CUtlVector< magnetted_objects_t >	m_MagnettedEntities;
+	IPhysicsConstraintGroup				*m_pConstraintGroup;
+
+	bool			m_bActive;
+	bool			m_bHasHitSomething;
+	float			m_flTotalMass;
+	float			m_flRadius;
+	float			m_flNextSuckTime;
+	int				m_iMaxObjectsAttached;
+};
+
+#endif // PHYSOBJ_H