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game/shared/usercmd.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#if !defined( USERCMD_H )
+#define USERCMD_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "mathlib/vector.h"
+#include "utlvector.h"
+#include "imovehelper.h"
+#include "checksum_crc.h"
+
+
+class bf_read;
+class bf_write;
+
+class CEntityGroundContact
+{
+public:
+	int					entindex;
+	float				minheight;
+	float				maxheight;
+};
+
+class CUserCmd
+{
+public:
+	CUserCmd()
+	{
+		Reset();
+	}
+
+	virtual ~CUserCmd() { };
+
+	void Reset()
+	{
+		command_number = 0;
+		tick_count = 0;
+		viewangles.Init();
+		forwardmove = 0.0f;
+		sidemove = 0.0f;
+		upmove = 0.0f;
+		buttons = 0;
+		impulse = 0;
+		weaponselect = 0;
+		weaponsubtype = 0;
+		random_seed = 0;
+#ifdef GAME_DLL
+		server_random_seed = 0;
+#endif
+		mousedx = 0;
+		mousedy = 0;
+
+		hasbeenpredicted = false;
+#if defined( HL2_DLL ) || defined( HL2_CLIENT_DLL )
+		entitygroundcontact.RemoveAll();
+#endif
+	}
+
+	CUserCmd& operator =( const CUserCmd& src )
+	{
+		if ( this == &src )
+			return *this;
+
+		command_number		= src.command_number;
+		tick_count			= src.tick_count;
+		viewangles			= src.viewangles;
+		forwardmove			= src.forwardmove;
+		sidemove			= src.sidemove;
+		upmove				= src.upmove;
+		buttons				= src.buttons;
+		impulse				= src.impulse;
+		weaponselect		= src.weaponselect;
+		weaponsubtype		= src.weaponsubtype;
+		random_seed			= src.random_seed;
+#ifdef GAME_DLL
+		server_random_seed = src.server_random_seed;
+#endif
+		mousedx				= src.mousedx;
+		mousedy				= src.mousedy;
+
+		hasbeenpredicted	= src.hasbeenpredicted;
+
+#if defined( HL2_DLL ) || defined( HL2_CLIENT_DLL )
+		entitygroundcontact			= src.entitygroundcontact;
+#endif
+
+		return *this;
+	}
+
+	CUserCmd( const CUserCmd& src )
+	{
+		*this = src;
+	}
+
+	CRC32_t GetChecksum( void ) const
+	{
+		CRC32_t crc;
+
+		CRC32_Init( &crc );
+		CRC32_ProcessBuffer( &crc, &command_number, sizeof( command_number ) );
+		CRC32_ProcessBuffer( &crc, &tick_count, sizeof( tick_count ) );
+		CRC32_ProcessBuffer( &crc, &viewangles, sizeof( viewangles ) );    
+		CRC32_ProcessBuffer( &crc, &forwardmove, sizeof( forwardmove ) );   
+		CRC32_ProcessBuffer( &crc, &sidemove, sizeof( sidemove ) );      
+		CRC32_ProcessBuffer( &crc, &upmove, sizeof( upmove ) );         
+		CRC32_ProcessBuffer( &crc, &buttons, sizeof( buttons ) );		
+		CRC32_ProcessBuffer( &crc, &impulse, sizeof( impulse ) );        
+		CRC32_ProcessBuffer( &crc, &weaponselect, sizeof( weaponselect ) );	
+		CRC32_ProcessBuffer( &crc, &weaponsubtype, sizeof( weaponsubtype ) );
+		CRC32_ProcessBuffer( &crc, &random_seed, sizeof( random_seed ) );
+		CRC32_ProcessBuffer( &crc, &mousedx, sizeof( mousedx ) );
+		CRC32_ProcessBuffer( &crc, &mousedy, sizeof( mousedy ) );
+		CRC32_Final( &crc );
+
+		return crc;
+	}
+
+	// Allow command, but negate gameplay-affecting values
+	void MakeInert( void )
+	{
+		viewangles = vec3_angle;
+		forwardmove = 0.f;
+		sidemove = 0.f;
+		upmove = 0.f;
+		buttons = 0;
+		impulse = 0;
+	}
+
+	// For matching server and client commands for debugging
+	int		command_number;
+	
+	// the tick the client created this command
+	int		tick_count;
+	
+	// Player instantaneous view angles.
+	QAngle	viewangles;     
+	// Intended velocities
+	//	forward velocity.
+	float	forwardmove;   
+	//  sideways velocity.
+	float	sidemove;      
+	//  upward velocity.
+	float	upmove;         
+	// Attack button states
+	int		buttons;		
+	// Impulse command issued.
+	byte    impulse;        
+	// Current weapon id
+	int		weaponselect;	
+	int		weaponsubtype;
+
+	int		random_seed;	// For shared random functions
+#ifdef GAME_DLL
+	int		server_random_seed; // Only the server populates this seed
+#endif
+
+	short	mousedx;		// mouse accum in x from create move
+	short	mousedy;		// mouse accum in y from create move
+
+	// Client only, tracks whether we've predicted this command at least once
+	bool	hasbeenpredicted;
+
+	// Back channel to communicate IK state
+#if defined( HL2_DLL ) || defined( HL2_CLIENT_DLL )
+	CUtlVector< CEntityGroundContact > entitygroundcontact;
+#endif
+
+};
+
+void ReadUsercmd( bf_read *buf, CUserCmd *move, CUserCmd *from );
+void WriteUsercmd( bf_write *buf, const CUserCmd *to, const CUserCmd *from );
+
+#endif // USERCMD_H