1 files changed, 67 insertions, 0 deletions
diff --git a/mp/src/public/iprediction.h b/mp/src/public/iprediction.h
new file mode 100644
index 00000000..13d78111
--- /dev/null
+++ b/mp/src/public/iprediction.h
@@ -0,0 +1,67 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+#if !defined( IPREDICTION_H )
+#define IPREDICTION_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "interface.h"
+#include "mathlib/vector.h" // Solely to get at define for QAngle
+
+
+class IMoveHelper;
+
+//-----------------------------------------------------------------------------
+// Purpose: Engine interface into client side prediction system
+//-----------------------------------------------------------------------------
+abstract_class IPrediction
+{
+public:
+	virtual			~IPrediction( void ) {};
+
+	virtual void	Init( void ) = 0;
+	virtual void	Shutdown( void ) = 0;
+
+	// Run prediction
+	virtual void	Update
+					( 
+						int startframe,				// World update ( un-modded ) most recently received
+						bool validframe,			// Is frame data valid
+						int incoming_acknowledged,	// Last command acknowledged to have been run by server (un-modded)
+						int outgoing_command		// Last command (most recent) sent to server (un-modded)
+					) = 0;
+
+	// We are about to get a network update from the server.  We know the update #, so we can pull any
+	//  data purely predicted on the client side and transfer it to the new from data state.
+	virtual void	PreEntityPacketReceived( int commands_acknowledged, int current_world_update_packet ) = 0;
+	virtual void	PostEntityPacketReceived( void ) = 0;
+	virtual void	PostNetworkDataReceived( int commands_acknowledged ) = 0;
+
+	virtual void	OnReceivedUncompressedPacket( void ) = 0;
+
+	// The engine needs to be able to access a few predicted values
+	virtual void	GetViewOrigin( Vector& org ) = 0;
+	virtual void	SetViewOrigin( Vector& org ) = 0;
+	virtual void	GetViewAngles( QAngle& ang ) = 0;
+	virtual void	SetViewAngles( QAngle& ang ) = 0;
+	virtual void	GetLocalViewAngles( QAngle& ang ) = 0;
+	virtual void	SetLocalViewAngles( QAngle& ang ) = 0;
+};
+
+extern IPrediction *g_pClientSidePrediction;
+
+#define VCLIENT_PREDICTION_INTERFACE_VERSION	"VClientPrediction001"
+
+#endif // IPREDICTION_H