1 files changed, 157 insertions, 0 deletions
diff --git a/game/server/tf/bot/behavior/tf_bot_attack.cpp b/game/server/tf/bot/behavior/tf_bot_attack.cpp
new file mode 100644
index 0000000..98266b8
--- /dev/null
+++ b/game/server/tf/bot/behavior/tf_bot_attack.cpp
@@ -0,0 +1,157 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+// tf_bot_attack.cpp
+// Attack our threat
+// Michael Booth, February 2009
+
+#include "cbase.h"
+#include "tf_player.h"
+#include "tf_gamerules.h"
+#include "team_control_point_master.h"
+#include "bot/tf_bot.h"
+#include "bot/behavior/tf_bot_attack.h"
+
+#include "nav_mesh.h"
+
+extern ConVar tf_bot_path_lookahead_range;
+extern ConVar tf_bot_offense_must_push_time;
+
+
+//---------------------------------------------------------------------------------------------
+CTFBotAttack::CTFBotAttack( void ) : m_chasePath( ChasePath::LEAD_SUBJECT )
+{
+}
+
+
+//---------------------------------------------------------------------------------------------
+ActionResult< CTFBot >	CTFBotAttack::OnStart( CTFBot *me, Action< CTFBot > *priorAction )
+{
+	m_path.SetMinLookAheadDistance( me->GetDesiredPathLookAheadRange() );
+
+	return Continue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+// head aiming and weapon firing is handled elsewhere - we just need to get into position to fight
+ActionResult< CTFBot >	CTFBotAttack::Update( CTFBot *me, float interval )
+{
+	CTFWeaponBase *myWeapon = me->m_Shared.GetActiveTFWeapon();
+	bool isUsingCloseRangeWeapon = ( myWeapon && ( myWeapon->IsWeapon( TF_WEAPON_FLAMETHROWER ) || myWeapon->IsMeleeWeapon() ) );
+
+	const CKnownEntity *threat = me->GetVisionInterface()->GetPrimaryKnownThreat();
+	if ( threat == NULL || threat->IsObsolete() || !me->GetIntentionInterface()->ShouldAttack( me, threat ) )
+	{
+		return Done( "No threat" );
+	}
+
+	me->EquipBestWeaponForThreat( threat );
+
+	if ( isUsingCloseRangeWeapon && threat->IsVisibleRecently() && me->IsRangeLessThan( threat->GetLastKnownPosition(), 1.1f * me->GetDesiredAttackRange() ) )
+	{
+		// circle around our victim
+		if ( me->TransientlyConsistentRandomValue( 3.0f ) < 0.5f )
+		{
+			me->PressLeftButton();
+		}
+		else
+		{
+			me->PressRightButton();
+		}
+	}
+
+
+	// pursue the threat. if not visible, go to the last known position
+	if ( !threat->IsVisibleRecently() || 
+		 me->IsRangeGreaterThan( threat->GetEntity()->GetAbsOrigin(), me->GetDesiredAttackRange() ) || 
+		 !me->IsLineOfFireClear( threat->GetEntity()->EyePosition() ) )
+	{
+		if ( threat->IsVisibleRecently() )
+		{
+			if ( isUsingCloseRangeWeapon && !TFGameRules()->IsMannVsMachineMode() )	// all bots in MvM use the default route
+			{
+				CTFBotPathCost cost( me, SAFEST_ROUTE );
+				m_chasePath.Update( me, threat->GetEntity(), cost );
+			}
+			else
+			{
+				CTFBotPathCost cost( me, DEFAULT_ROUTE );
+				m_chasePath.Update( me, threat->GetEntity(), cost );
+			}
+		}
+		else
+		{
+			// if we're at the threat's last known position and he's still not visible, we lost him
+			m_chasePath.Invalidate();
+
+			if ( me->IsRangeLessThan( threat->GetLastKnownPosition(), 20.0f ) )
+			{
+				me->GetVisionInterface()->ForgetEntity( threat->GetEntity() );
+				return Done( "I lost my target!" );
+			}
+
+			// look where we last saw him as we approach
+			if ( me->IsRangeLessThan( threat->GetLastKnownPosition(), me->GetMaxAttackRange() ) )
+			{
+				me->GetBodyInterface()->AimHeadTowards( threat->GetLastKnownPosition() + Vector( 0, 0, HumanEyeHeight ), IBody::IMPORTANT, 0.2f, NULL, "Looking towards where we lost sight of our victim" );
+			}
+
+			m_path.Update( me );
+
+			if ( m_repathTimer.IsElapsed() )
+			{
+				//m_repathTimer.Start( RandomFloat( 0.3f, 0.5f ) );
+				m_repathTimer.Start( RandomFloat( 3.0f, 5.0f ) );
+
+				if ( isUsingCloseRangeWeapon && !TFGameRules()->IsMannVsMachineMode() )	// all bots in MvM use the default route
+				{
+					CTFBotPathCost cost( me, SAFEST_ROUTE );
+					m_path.Compute( me, threat->GetLastKnownPosition(), cost );
+				}
+				else
+				{
+					CTFBotPathCost cost( me, DEFAULT_ROUTE );
+					float maxPathLength = TFGameRules()->IsMannVsMachineMode() ? TFBOT_MVM_MAX_PATH_LENGTH : 0.0f;
+					m_path.Compute( me, threat->GetLastKnownPosition(), cost, maxPathLength );
+				}
+			}
+		}
+	}
+
+	return Continue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+EventDesiredResult< CTFBot > CTFBotAttack::OnStuck( CTFBot *me )
+{
+	return TryContinue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+EventDesiredResult< CTFBot > CTFBotAttack::OnMoveToSuccess( CTFBot *me, const Path *path )
+{
+	return TryContinue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+EventDesiredResult< CTFBot > CTFBotAttack::OnMoveToFailure( CTFBot *me, const Path *path, MoveToFailureType reason )
+{
+	return TryContinue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+QueryResultType	CTFBotAttack::ShouldRetreat( const INextBot *me ) const
+{
+	return ANSWER_UNDEFINED;
+}
+
+
+//---------------------------------------------------------------------------------------------
+QueryResultType CTFBotAttack::ShouldHurry( const INextBot *me ) const
+{
+	return ANSWER_UNDEFINED;
+}
+