1 files changed, 269 insertions, 0 deletions
diff --git a/game/server/tf/halloween/halloween_behavior/crybaby_boss_attack.cpp b/game/server/tf/halloween/halloween_behavior/crybaby_boss_attack.cpp
new file mode 100644
index 0000000..e2decd4
--- /dev/null
+++ b/game/server/tf/halloween/halloween_behavior/crybaby_boss_attack.cpp
@@ -0,0 +1,269 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+// crybaby_boss_attack.cpp
+// Halloween Boss 2011 chase and attack behavior
+// Michael Booth, October 2011
+
+#include "cbase.h"
+
+#include "tf_player.h"
+#include "tf_gamerules.h"
+#include "tf_team.h"
+#include "nav_mesh/tf_nav_area.h"
+#include "particle_parse.h"
+#include "team_control_point_master.h"
+
+#include "../headless_hatman.h"
+#include "crybaby_boss_attack.h"
+
+
+//----------------------------------------------------------------------------------
+CCryBabyBossAttack::CCryBabyBossAttack( CTFPlayer *victim )
+{
+	m_victim = victim;
+}
+
+
+//----------------------------------------------------------------------------------
+ActionResult< CHeadlessHatman >	CCryBabyBossAttack::OnStart( CHeadlessHatman *me, Action< CHeadlessHatman > *priorAction )
+{
+	// start animation
+	me->GetBodyInterface()->StartActivity( ACT_MP_RUN_ITEM1 );
+
+	m_axeSwingTimer.Invalidate();
+	m_attackTimer.Invalidate();
+
+	m_attackTarget = NULL;
+	m_attackTargetFocusTimer.Invalidate();
+
+	return Continue();
+}
+
+
+//----------------------------------------------------------------------------------
+bool CCryBabyBossAttack::IsSwingingAxe( void ) const
+{
+	return !m_axeSwingTimer.IsElapsed();
+}
+
+
+//----------------------------------------------------------------------------------
+void CCryBabyBossAttack::UpdateAxeSwing( CHeadlessHatman *me )
+{
+	if ( m_axeSwingTimer.HasStarted() )
+	{
+		// continue axe swing
+		if ( m_axeSwingTimer.IsElapsed() )
+		{
+			// moment of impact - did axe swing hit?
+			m_axeSwingTimer.Invalidate();
+
+			if ( m_attackTarget != NULL )
+			{
+				Vector forward;
+				me->GetVectors( &forward, NULL, NULL );
+
+				Vector toVictim = m_attackTarget->WorldSpaceCenter() - me->WorldSpaceCenter();
+				toVictim.NormalizeInPlace();
+
+				// looser tolerance as victim gets closer
+				const float closeRange = 100.0f;
+				float range = me->GetRangeTo( m_attackTarget );
+				float closeness = ( range < closeRange ) ? 0.0f : ( range - closeRange ) / ( tf_halloween_bot_attack_range.GetFloat() - closeRange );
+				float hitAngle = 0.0f + closeness * 0.27f;
+
+				if ( DotProduct( forward, toVictim ) > hitAngle )
+				{
+					if ( me->IsRangeLessThan( m_attackTarget, 0.9f * tf_halloween_bot_attack_range.GetFloat() ) )
+					{
+						if ( me->IsLineOfSightClear( m_attackTarget ) )
+						{
+							// CHOP!
+							CTakeDamageInfo info( me, me, 2.0f * m_attackTarget->GetHealth(), DMG_CLUB, TF_DMG_CUSTOM_DECAPITATION_BOSS );
+							CalculateMeleeDamageForce( &info, toVictim, me->WorldSpaceCenter(), 5.0f );
+							m_attackTarget->TakeDamage( info );
+							me->EmitSound( "Halloween.HeadlessBossAxeHitFlesh" );
+						}
+					}
+				}
+			}
+
+			// always playe the axe-hit-world impact sound, since it carries through the world better
+			me->EmitSound( "Halloween.HeadlessBossAxeHitWorld" );
+			UTIL_ScreenShake( me->GetAbsOrigin(), 15.0f, 5.0f, 1.0f, 1000.0f, SHAKE_START );
+
+			Vector bladePos;
+			QAngle bladeAngle;
+			if ( me->GetAxe() && me->GetAxe()->GetAttachment( "axe_blade", bladePos, bladeAngle ) )
+			{
+				DispatchParticleEffect( "halloween_boss_axe_hit_world", bladePos, bladeAngle );
+			}
+		}
+	}
+}
+
+
+//----------------------------------------------------------------------------------
+// Validate that our victim is still alive and someplace we can actually get to
+bool CCryBabyBossAttack::IsVictimChaseable( CHeadlessHatman *me )
+{
+	if ( m_victim == NULL )
+	{
+		return false;
+	}
+
+	if ( !m_victim->IsAlive() )
+	{
+		return false;
+	}
+
+	CTFNavArea *victimArea = (CTFNavArea *)m_victim->GetLastKnownArea();
+	if ( !victimArea || victimArea->HasAttributeTF( TF_NAV_SPAWN_ROOM_BLUE | TF_NAV_SPAWN_ROOM_RED ) )
+	{
+		// unreachable
+		return false;
+	}
+
+	if ( m_victim->GetGroundEntity() != NULL )
+	{
+		Vector victimAreaPos;
+		victimArea->GetClosestPointOnArea( m_victim->GetAbsOrigin(), &victimAreaPos );
+		if ( ( m_victim->GetAbsOrigin() - victimAreaPos ).AsVector2D().IsLengthGreaterThan( 50.0f ) )
+		{
+			// off the mesh and unreachable
+			return false;
+		}
+	}
+
+	return true;
+}
+
+
+//----------------------------------------------------------------------------------
+ActionResult< CHeadlessHatman >	CCryBabyBossAttack::Update( CHeadlessHatman *me, float interval )
+{
+	if ( !me->IsAlive() )
+	{
+		return Done();
+	}
+
+	if ( !IsVictimChaseable( me ) )
+	{
+		return Done( "Victim is dead or unreachable" );
+	}
+
+	if ( !IsSwingingAxe() && m_laughTimer.IsElapsed() )
+	{
+		me->EmitSound( "Halloween.HeadlessBossLaugh" );
+		m_laughTimer.Start( RandomFloat( 3.0f, 5.0f ) );
+	}
+
+	// chase after our chase victim
+	const float standAndSwingRange = 100.0f;
+
+	if ( me->IsRangeGreaterThan( m_victim, standAndSwingRange ) || !me->IsLineOfSightClear( m_victim ) )
+	{
+		CHeadlessHatmanPathCost cost( me );
+		m_chasePath.Update( me, m_victim, cost );
+	}
+
+	if ( m_attackTargetFocusTimer.IsElapsed() || m_attackTarget == NULL )
+	{
+		m_attackTarget = m_victim.Get();
+	}
+
+	// swing our axe at our attack target if they are in range
+	if ( m_attackTarget != NULL && m_attackTarget->IsAlive() )
+	{
+		if ( me->IsRangeLessThan( m_attackTarget, tf_halloween_bot_attack_range.GetFloat() ) )
+		{
+			if ( m_attackTimer.IsElapsed() )
+			{
+				if ( !IsSwingingAxe() )
+				{
+					me->AddGesture( ACT_MP_ATTACK_STAND_ITEM1 );
+					m_axeSwingTimer.Start( 0.58f );
+					me->EmitSound( "Halloween.HeadlessBossAttack" );
+
+					m_attackTimer.Start( 1.0f );
+				}
+			}
+
+			me->GetLocomotionInterface()->FaceTowards( m_attackTarget->WorldSpaceCenter() );
+		}
+	}
+
+	// finish axe swing once it has begun
+	UpdateAxeSwing( me );
+
+	if ( me->GetLocomotionInterface()->IsAttemptingToMove() )
+	{
+		// play running animation
+		int healthRatio = 100 * me->GetHealth() / me->GetMaxHealth();
+
+		if ( healthRatio > 50 )
+		{
+			if ( !me->GetBodyInterface()->IsActivity( ACT_MP_RUN_ITEM1 ) )
+			{
+				me->GetBodyInterface()->StartActivity( ACT_MP_RUN_ITEM1 );
+			}
+		}
+		else
+		{
+			if ( !me->GetBodyInterface()->IsActivity( ACT_MP_RUN_MELEE ) )
+			{
+				me->GetBodyInterface()->StartActivity( ACT_MP_RUN_MELEE );
+			}
+		}
+
+		if ( m_footfallTimer.IsElapsed() )
+		{
+			m_footfallTimer.Start( 0.25f );
+
+			// periodically shake nearby players' screens when we're moving
+			UTIL_ScreenShake( me->GetAbsOrigin(), 15.0f, 5.0f, 1.0f, 1000.0f, SHAKE_START );
+		}
+	}
+	else
+	{
+		// standing still
+		if ( !me->GetBodyInterface()->IsActivity( ACT_MP_STAND_ITEM1 ) )
+		{
+			me->GetBodyInterface()->StartActivity( ACT_MP_STAND_ITEM1 );
+		}
+	}
+
+	return Continue();
+}
+
+
+//---------------------------------------------------------------------------------------------
+EventDesiredResult< CHeadlessHatman > CCryBabyBossAttack::OnStuck( CHeadlessHatman *me )
+{
+	// we're stuck - just warp to the our next path goal
+	if ( m_chasePath.GetCurrentGoal() )
+	{
+		me->SetAbsOrigin( m_chasePath.GetCurrentGoal()->pos + Vector( 0, 0, 10.0f ) );
+	}
+
+	return TryContinue( RESULT_TRY );
+}
+
+
+//---------------------------------------------------------------------------------------------
+EventDesiredResult< CHeadlessHatman > CCryBabyBossAttack::OnContact( CHeadlessHatman *me, CBaseEntity *other, CGameTrace *result )
+{
+	if ( other )
+	{
+		CBaseCombatCharacter *combatChar = dynamic_cast< CBaseCombatCharacter * >( other );
+		if ( combatChar && combatChar->IsAlive() )
+		{
+			// force attack the thing we bumped into
+			// this prevents us from being stuck on dispensers, for example
+			m_attackTarget = combatChar;
+			m_attackTargetFocusTimer.Start( 3.0f );
+		}
+	}
+
+	return TryContinue( RESULT_TRY );
+}
+