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game/server/tf2/info_customtech.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Map entity that adds a custom technology to the techtree
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "EntityOutput.h"
+#include "EntityList.h"
+#include "tf_team.h"
+#include "techtree.h"
+#include "info_customtech.h"
+#include "tier1/strtools.h"
+
+BEGIN_DATADESC( CInfoCustomTechnology )
+
+	// outputs
+	DEFINE_OUTPUT( m_flTechPercentage, "TechPercentage" ),
+
+	// keys 
+	DEFINE_KEYFIELD_NOT_SAVED( m_iszTech , FIELD_STRING, "TechToWatch" ),
+	DEFINE_KEYFIELD_NOT_SAVED( m_iszTechTreeFile , FIELD_STRING, "NewTechFile" ),
+
+END_DATADESC()
+
+IMPLEMENT_SERVERCLASS_ST( CInfoCustomTechnology, DT_InfoCustomTechnology )
+	SendPropString( SENDINFO( m_szTechTreeFile ) ),
+END_SEND_TABLE();
+
+LINK_ENTITY_TO_CLASS( info_customtech, CInfoCustomTechnology );
+
+//-----------------------------------------------------------------------------
+// Purpose: Always transmit
+//-----------------------------------------------------------------------------
+int CInfoCustomTechnology::ShouldTransmit( const CCheckTransmitInfo *pInfo )
+{
+	// Don't need to transmit ones that don't add new techs
+	if ( !m_iszTechTreeFile )
+		return FL_EDICT_DONTSEND;
+
+	// Only transmit to members of my team
+	CBaseEntity* pRecipientEntity = CBaseEntity::Instance( pInfo->m_pClientEnt );
+	if ( InSameTeam( pRecipientEntity ) )
+	{
+		//Msg( "SENDING\n" );
+		return FL_EDICT_ALWAYS;
+	}
+
+	return FL_EDICT_DONTSEND;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CInfoCustomTechnology::Spawn( void )
+{
+	m_flTechPercentage.Set( 0, this, this );
+	memset( m_szTechTreeFile.GetForModify(), 0, sizeof(m_szTechTreeFile) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Add myself to the technology tree
+//-----------------------------------------------------------------------------
+void CInfoCustomTechnology::Activate( void )
+{
+	BaseClass::Activate();
+	if ( !GetTeamNumber() )
+	{
+		Msg( "ERROR: info_customtech without a specified team.\n" );
+		UTIL_Remove( this );
+		return;
+	}
+
+	// Get the Team's Technology Tree
+	CTFTeam *pTeam = (CTFTeam *)GetTeam(); 
+	if ( pTeam )
+	{
+		CTechnologyTree *pTechTree = pTeam->GetTechnologyTree();
+		if ( pTechTree )
+		{
+			// Am I supposed to add some new technologies to the tech tree?
+			if ( m_iszTechTreeFile != NULL_STRING )
+			{
+				pTechTree->AddTechnologyFile( filesystem, GetTeamNumber(), (char*)STRING(m_iszTechTreeFile ) );
+
+				// Tell our clients about the technology
+				Q_strncpy( m_szTechTreeFile.GetForModify(), STRING(m_iszTechTreeFile), sizeof(m_szTechTreeFile) );
+			}
+
+			// Find the technology in the techtree 
+			CBaseTechnology *pTechnology = pTechTree->GetTechnology( STRING(m_iszTech) );
+			// Now hook the technology up to me
+			if ( pTechnology )
+			{
+				pTechnology->RegisterWatcher( this );
+			}
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Update the amount of our technology that's owned
+//-----------------------------------------------------------------------------
+void CInfoCustomTechnology::UpdateTechPercentage( float flPercentage )
+{
+	m_flTechPercentage.Set( flPercentage, this, this );
+}