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vphysics/physics_shadow.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef PHYSICS_SHADOW_H
+#define PHYSICS_SHADOW_H
+#pragma once
+
+class CPhysicsObject;
+class IPhysicsShadowController;
+class IPhysicsPlayerController;
+
+extern IPhysicsShadowController *CreateShadowController( CPhysicsObject *pObject, bool allowTranslation, bool allowRotation );
+extern IPhysicsPlayerController *CreatePlayerController( CPhysicsObject *pObject );
+extern void DestroyPlayerController( IPhysicsPlayerController *pController );
+
+
+extern void ComputeController( IVP_U_Float_Point &currentSpeed, const IVP_U_Float_Point &delta, const IVP_U_Float_Point &maxSpeed, float scaleDelta, float damping );
+
+#include "ivp_physics.hxx"
+
+struct shadowcontrol_params_t
+{
+	shadowcontrol_params_t() 
+	{ 
+		lastPosition.set_to_zero(); 
+		lastImpulse.set_to_zero();
+	}
+
+	IVP_U_Point			targetPosition;
+	IVP_U_Quat			targetRotation;
+	IVP_U_Point			lastPosition;		// estimate for where the object should be, used to compute error for teleport
+	IVP_U_Float_Point	lastImpulse;		// Impulse applied last frame
+	float				maxAngular;
+	float				maxDampAngular;
+	float				maxSpeed;
+	float				maxDampSpeed;
+	float				dampFactor;
+	float				teleportDistance;
+};
+
+
+float ComputeShadowControllerHL( CPhysicsObject *pObject, const hlshadowcontrol_params_t &params, float secondsToArrival, float dt );
+float ComputeShadowControllerIVP( IVP_Real_Object *pivp, shadowcontrol_params_t &params, float secondsToArrival, float dt );
+
+#endif // PHYSICS_SHADOW_H