Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
// tf_bot_move_to_vantage_point.h
// Move to a position where at least one enemy is visible
// Michael Booth, November 2009
#include "cbase.h"
#include "tf_player.h"
#include "bot/tf_bot.h"
#include "bot/behavior/tf_bot_move_to_vantage_point.h"
#include "nav_mesh.h"
extern ConVar tf_bot_path_lookahead_range;
//---------------------------------------------------------------------------------------------
CTFBotMoveToVantagePoint::CTFBotMoveToVantagePoint( float maxTravelDistance )
{
m_maxTravelDistance = maxTravelDistance;
}
//---------------------------------------------------------------------------------------------
ActionResult< CTFBot > CTFBotMoveToVantagePoint::OnStart( CTFBot *me, Action< CTFBot > *priorAction )
{
m_path.SetMinLookAheadDistance( me->GetDesiredPathLookAheadRange() );
m_vantageArea = me->FindVantagePoint( m_maxTravelDistance );
if ( !m_vantageArea )
{
return Done( "No vantage point found" );
}
m_path.Invalidate();
m_repathTimer.Invalidate();
return Continue();
}
//---------------------------------------------------------------------------------------------
ActionResult< CTFBot > CTFBotMoveToVantagePoint::Update( CTFBot *me, float interval )
{
const CKnownEntity *threat = me->GetVisionInterface()->GetPrimaryKnownThreat();
if ( threat && threat->IsVisibleInFOVNow() )
{
return Done( "Enemy is visible" );
}
if ( !m_path.IsValid() && m_repathTimer.IsElapsed() )
{
m_repathTimer.Start( 1.0f );
CTFBotPathCost cost( me, FASTEST_ROUTE );
if ( !m_path.Compute( me, m_vantageArea->GetCenter(), cost ) )
{
return Done( "No path to vantage point exists" );
}
}
// move along path to vantage point
m_path.Update( me );
return Continue();
}
//---------------------------------------------------------------------------------------------
EventDesiredResult< CTFBot > CTFBotMoveToVantagePoint::OnStuck( CTFBot *me )
{
m_path.Invalidate();
return TryContinue();
}
//---------------------------------------------------------------------------------------------
EventDesiredResult< CTFBot > CTFBotMoveToVantagePoint::OnMoveToSuccess( CTFBot *me, const Path *path )
{
return TryDone( RESULT_CRITICAL, "Vantage point reached" );
}
//---------------------------------------------------------------------------------------------
EventDesiredResult< CTFBot > CTFBotMoveToVantagePoint::OnMoveToFailure( CTFBot *me, const Path *path, MoveToFailureType reason )
{
m_path.Invalidate();
return TryContinue();
}