TickrateEnabler.cpp

//===== Copyright © 1996-2008, Valve Corporation, All rights reserved. ======//
//
// Purpose: 
//
// $NoKeywords: $
//
//===========================================================================//


#include "igameevents.h"
#include "eiface.h"
#include "tier0/icommandline.h"

#include "sourcehook/sourcehook_impl.h"


// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"

//---------------------------------------------------------------------------------
// Purpose: a sample 3rd party plugin class
//---------------------------------------------------------------------------------
class CEmptyServerPlugin: public IServerPluginCallbacks, public IGameEventListener
{
public:
	CEmptyServerPlugin();
	~CEmptyServerPlugin();

	// IServerPluginCallbacks methods
	virtual bool			Load(	CreateInterfaceFn interfaceFactory, CreateInterfaceFn gameServerFactory );
	virtual void			Unload( void );
	virtual void			Pause( void );
	virtual void			UnPause( void );
	virtual const char     *GetPluginDescription( void );      
	virtual void			LevelInit( char const *pMapName );
	virtual void			ServerActivate( edict_t *pEdictList, int edictCount, int clientMax );
	virtual void			GameFrame( bool simulating );
	virtual void			LevelShutdown( void );
	virtual void			ClientActive( edict_t *pEntity );
	virtual void			ClientDisconnect( edict_t *pEntity );
	virtual void			ClientPutInServer( edict_t *pEntity, char const *playername );
	virtual void			SetCommandClient( int index );
	virtual void			ClientSettingsChanged( edict_t *pEdict );
	virtual PLUGIN_RESULT	ClientConnect( bool *bAllowConnect, edict_t *pEntity, const char *pszName, const char *pszAddress, char *reject, int maxrejectlen );
	virtual PLUGIN_RESULT	ClientCommand( edict_t *pEntity, const CCommand &args );
	virtual PLUGIN_RESULT	NetworkIDValidated( const char *pszUserName, const char *pszNetworkID );
	virtual void			OnQueryCvarValueFinished( QueryCvarCookie_t iCookie, edict_t *pPlayerEntity, EQueryCvarValueStatus eStatus, const char *pCvarName, const char *pCvarValue );

	// added with version 3 of the interface.
	virtual void			OnEdictAllocated( edict_t *edict );
	virtual void			OnEdictFreed( const edict_t *edict  );	

	// IGameEventListener Interface
	virtual void FireGameEvent( KeyValues * event );

	virtual int GetCommandIndex() { return m_iClientCommandIndex; }
private:
	int m_iClientCommandIndex;
};


// 
// The plugin is a static singleton that is exported as an interface
//
CEmptyServerPlugin g_EmtpyServerPlugin;
EXPOSE_SINGLE_INTERFACE_GLOBALVAR(CEmptyServerPlugin, IServerPluginCallbacks, INTERFACEVERSION_ISERVERPLUGINCALLBACKS, g_EmtpyServerPlugin );

//---------------------------------------------------------------------------------
// Purpose: constructor/destructor
//---------------------------------------------------------------------------------
CEmptyServerPlugin::CEmptyServerPlugin()
{
	m_iClientCommandIndex = 0;
}

CEmptyServerPlugin::~CEmptyServerPlugin()
{
}

//---------------------------------------------------------------------------------
// Purpose: called once per server frame, do recurring work here (like checking for timeouts)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::GameFrame( bool simulating )
{
}

SourceHook::Impl::CSourceHookImpl g_SourceHook;
SourceHook::ISourceHook *g_SHPtr = &g_SourceHook;
int g_PLID = 0;

SH_DECL_HOOK0(IServerGameDLL, GetTickInterval, const, 0, float);

float GetTickInterval()
{
	float tickinterval = DEFAULT_TICK_INTERVAL;

	if ( CommandLine()->CheckParm( "-tickrate" ) )
	{
		float tickrate = CommandLine()->ParmValue( "-tickrate", 0 );
		if ( tickrate > 10 )
			tickinterval = 1.0f / tickrate;
	}

	RETURN_META_VALUE(MRES_SUPERCEDE, tickinterval );
}


IServerGameDLL *gamedll = NULL;

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is loaded, load the interface we need from the engine
//---------------------------------------------------------------------------------
bool CEmptyServerPlugin::Load(	CreateInterfaceFn interfaceFactory, CreateInterfaceFn gameServerFactory )
{
	gamedll = (IServerGameDLL*)gameServerFactory("ServerGameDLL010",NULL);
	if(!gamedll)
	{
		Warning("Failed to get a pointer on ServerGameDLL.\n");
		return false;
	}

	SH_ADD_HOOK(IServerGameDLL, GetTickInterval, gamedll, SH_STATIC(GetTickInterval), false);

	return true;
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unloaded (turned off)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::Unload( void )
{
	SH_REMOVE_HOOK(IServerGameDLL, GetTickInterval, gamedll, SH_STATIC(GetTickInterval), false);
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is paused (i.e should stop running but isn't unloaded)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::Pause( void )
{
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unpaused (i.e should start executing again)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::UnPause( void )
{
}

//---------------------------------------------------------------------------------
// Purpose: the name of this plugin, returned in "plugin_print" command
//---------------------------------------------------------------------------------
const char *CEmptyServerPlugin::GetPluginDescription( void )
{
	return "Tickrate_Enabler 0.5, updated, original by Didrole";
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::LevelInit( char const *pMapName )
{
}

//---------------------------------------------------------------------------------
// Purpose: called on level start, when the server is ready to accept client connections
//		edictCount is the number of entities in the level, clientMax is the max client count
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ServerActivate( edict_t *pEdictList, int edictCount, int clientMax )
{
}

//---------------------------------------------------------------------------------
// Purpose: called on level end (as the server is shutting down or going to a new map)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::LevelShutdown( void ) // !!!!this can get called multiple times per map change
{
}

//---------------------------------------------------------------------------------
// Purpose: called when a client spawns into a server (i.e as they begin to play)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientActive( edict_t *pEntity )
{
}

//---------------------------------------------------------------------------------
// Purpose: called when a client leaves a server (or is timed out)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientDisconnect( edict_t *pEntity )
{
}

//---------------------------------------------------------------------------------
// Purpose: called on 
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientPutInServer( edict_t *pEntity, char const *playername )
{
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::SetCommandClient( int index )
{
	m_iClientCommandIndex = index;
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientSettingsChanged( edict_t *pEdict )
{
}

//---------------------------------------------------------------------------------
// Purpose: called when a client joins a server
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::ClientConnect( bool *bAllowConnect, edict_t *pEntity, const char *pszName, const char *pszAddress, char *reject, int maxrejectlen )
{
	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when a client types in a command (only a subset of commands however, not CON_COMMAND's)
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::ClientCommand( edict_t *pEntity, const CCommand &args )
{
	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when a client is authenticated
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::NetworkIDValidated( const char *pszUserName, const char *pszNetworkID )
{
	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when a cvar value query is finished
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::OnQueryCvarValueFinished( QueryCvarCookie_t iCookie, edict_t *pPlayerEntity, EQueryCvarValueStatus eStatus, const char *pCvarName, const char *pCvarValue )
{
}
void CEmptyServerPlugin::OnEdictAllocated( edict_t *edict )
{
}
void CEmptyServerPlugin::OnEdictFreed( const edict_t *edict  )
{
}

//---------------------------------------------------------------------------------
// Purpose: called when an event is fired
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::FireGameEvent( KeyValues * event )
{
}