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111 lines
2.7 KiB
111 lines
2.7 KiB
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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// tf_bot_nav_ent_move_to.cpp
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// Move onto target and wait, as directed by nav entity
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// Michael Booth, September 2009
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#include "cbase.h"
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#include "nav_mesh.h"
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#include "tf_player.h"
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#include "bot/tf_bot.h"
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#include "bot/behavior/nav_entities/tf_bot_nav_ent_move_to.h"
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extern ConVar tf_bot_path_lookahead_range;
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//---------------------------------------------------------------------------------------------
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CTFBotNavEntMoveTo::CTFBotNavEntMoveTo( const CFuncNavPrerequisite *prereq )
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{
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m_prereq = prereq;
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m_pGoalArea = NULL;
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}
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//---------------------------------------------------------------------------------------------
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ActionResult< CTFBot > CTFBotNavEntMoveTo::OnStart( CTFBot *me, Action< CTFBot > *priorAction )
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{
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if ( m_prereq == NULL )
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{
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return Done( "Prerequisite has been removed before we started" );
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}
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m_path.SetMinLookAheadDistance( me->GetDesiredPathLookAheadRange() );
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m_waitTimer.Invalidate();
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CBaseEntity *target = m_prereq->GetTaskEntity();
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if ( target == NULL )
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{
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return Done( "Prerequisite target entity is NULL" );
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}
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Extent targetExtent;
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targetExtent.Init( target );
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// pick random ground position within target entity as move-to goal
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m_goalPosition = targetExtent.lo + Vector( RandomFloat( 0.0f, targetExtent.SizeX() ), RandomFloat( 0.0f, targetExtent.SizeY() ), targetExtent.SizeZ() );
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TheNavMesh->GetSimpleGroundHeight( m_goalPosition, &m_goalPosition.z );
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m_pGoalArea = (CTFNavArea*)TheNavMesh->GetNavArea( m_goalPosition );
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if ( !m_pGoalArea )
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{
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return Done( "There's no nav area for the goal position" );
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}
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return Continue();
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}
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//---------------------------------------------------------------------------------------------
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ActionResult< CTFBot > CTFBotNavEntMoveTo::Update( CTFBot *me, float interval )
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{
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if ( m_prereq == NULL )
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{
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return Done( "Prerequisite has been removed" );
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}
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if ( !m_prereq->IsEnabled() )
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{
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return Done( "Prerequisite has been disabled" );
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}
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const CKnownEntity *threat = me->GetVisionInterface()->GetPrimaryKnownThreat();
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if ( threat && threat->IsVisibleRecently() )
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{
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// prepare to fight
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me->EquipBestWeaponForThreat( threat );
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}
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if ( m_waitTimer.HasStarted() )
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{
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if ( m_waitTimer.IsElapsed() )
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{
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return Done( "Wait duration elapsed" );
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}
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}
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else
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{
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// move to the goal area
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if ( m_pGoalArea == me->GetLastKnownArea() )
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{
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// in area
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m_waitTimer.Start( m_prereq->GetTaskValue() );
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}
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else
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{
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if ( m_repathTimer.IsElapsed() )
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{
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m_repathTimer.Start( RandomFloat( 1.0f, 2.0f ) );
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CTFBotPathCost cost( me, FASTEST_ROUTE );
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m_path.Compute( me, m_goalPosition, cost );
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}
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// move into position
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m_path.Update( me );
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}
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}
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return Continue();
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}
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