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game/server/tf/bot/map_entities/tf_bot_hint.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+// tf_bot_hint.cpp
+// Designer-placed hint for TFBots
+
+#include "cbase.h"
+#include "bot/tf_bot.h"
+#include "tf_bot_hint.h"
+
+BEGIN_DATADESC( CTFBotHint )
+	DEFINE_KEYFIELD( m_team, FIELD_INTEGER, "team" ),
+	DEFINE_KEYFIELD( m_hint, FIELD_INTEGER, "hint" ),
+	DEFINE_KEYFIELD( m_isDisabled, FIELD_BOOLEAN, "StartDisabled" ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Enable", InputEnable ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Disable", InputDisable ),
+END_DATADESC()
+
+LINK_ENTITY_TO_CLASS( func_tfbot_hint, CTFBotHint );
+
+//
+// NOTE: For simplicity and runtime efficiency, this will not 
+// play nice with nav area hints stored in the mesh,
+// nor will overlapping hints of the same type work well.
+//
+
+//------------------------------------------------------------------------------
+CTFBotHint::CTFBotHint( void )
+{
+	m_isDisabled = false;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+// Return true if this hint applies to the given entity
+bool CTFBotHint::IsFor( CTFBot *who ) const
+{
+	if ( m_isDisabled )
+	{
+		return false;
+	}
+
+	if ( m_team > 0 && who->GetTeamNumber() != m_team )
+	{
+		return false;		
+	}
+
+	return true;
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CTFBotHint::Spawn( void )
+{
+	BaseClass::Spawn();
+
+	SetSolid( SOLID_BSP );	
+	AddSolidFlags( FSOLID_NOT_SOLID );
+
+	SetMoveType( MOVETYPE_NONE );
+	SetModel( STRING( GetModelName() ) );
+	AddEffects( EF_NODRAW );
+	SetCollisionGroup( COLLISION_GROUP_NONE );
+
+	VPhysicsInitShadow( false, false );
+
+	UpdateNavDecoration();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CTFBotHint::UpdateOnRemove( void )
+{
+	BaseClass::UpdateOnRemove();
+
+	UpdateNavDecoration();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CTFBotHint::InputEnable( inputdata_t &inputdata )
+{
+	m_isDisabled = false;
+	UpdateNavDecoration();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CTFBotHint::InputDisable( inputdata_t &inputdata )
+{
+	m_isDisabled = true;
+	UpdateNavDecoration();
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+void CTFBotHint::UpdateNavDecoration( void )
+{
+	Extent extent;
+	extent.Init( this );
+
+	CUtlVector< CTFNavArea * > overlapVector;
+	TheNavMesh->CollectAreasOverlappingExtent( extent, &overlapVector );
+
+	int attributeBits = 0;
+	switch( m_hint )
+	{
+	case HINT_SNIPER_SPOT:
+		attributeBits = TF_NAV_SNIPER_SPOT;
+		break;
+
+	case HINT_SENTRY_SPOT:
+		attributeBits = TF_NAV_SENTRY_SPOT;
+		break;
+	}
+
+	for( int j=0; j<overlapVector.Count(); ++j )
+	{
+		if ( m_isDisabled )
+		{
+			overlapVector[j]->ClearAttributeTF( attributeBits );
+		}
+		else
+		{
+			overlapVector[j]->SetAttributeTF( attributeBits );
+		}
+	}
+}
+
+