source-engine/game/server/hl1/hl1_npc_gargantua.cpp

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Bullseyes act as targets for other NPC's to attack and to trigger
//			events 
//
// $Workfile:     $
// $Date:         $
// $NoKeywords: $
//=============================================================================//

#include	"cbase.h"
#include	"beam_shared.h"
#include	"Sprite.h"
#include	"ai_default.h"
#include	"ai_task.h"
#include	"ai_schedule.h"
#include	"ai_node.h"
#include	"ai_hull.h"
#include	"ai_hint.h"
#include	"ai_memory.h"
#include	"ai_route.h"
#include	"ai_motor.h"
#include	"hl1_npc_gargantua.h"
#include	"soundent.h"
#include	"game.h"
#include	"npcevent.h"
#include	"entitylist.h"
#include	"activitylist.h"
#include	"animation.h"
#include	"basecombatweapon.h"
#include	"IEffects.h"
#include	"vstdlib/random.h"
#include	"engine/IEngineSound.h"
#include	"ammodef.h"
#include	"shake.h"
#include	"decals.h"
#include	"particle_smokegrenade.h"
#include	"gib.h"
#include	"func_break.h"
#include "hl1_shareddefs.h"


extern short	g_sModelIndexFireball;
int				gGargGibModel;

//=========================================================
// Gargantua Monster
//=========================================================
#define GARG_ATTACKDIST 120.0f

// Garg animation events
#define GARG_AE_SLASH_LEFT			1
//#define GARG_AE_BEAM_ATTACK_RIGHT	2		// No longer used
#define GARG_AE_LEFT_FOOT			3
#define GARG_AE_RIGHT_FOOT			4
#define GARG_AE_STOMP				5
#define GARG_AE_BREATHE				6


// Gargantua is immune to any damage but this
#define GARG_DAMAGE					( DMG_ENERGYBEAM | DMG_CRUSH | DMG_MISSILEDEFENSE | DMG_BLAST )
#define GARG_EYE_SPRITE_NAME		"sprites/gargeye1.vmt"
#define GARG_BEAM_SPRITE_NAME		"sprites/xbeam3.vmt"
#define GARG_BEAM_SPRITE2			"sprites/xbeam3.vmt"
#define GARG_STOMP_SPRITE_NAME		"sprites/gargeye1.vmt"
#define GARG_FLAME_LENGTH			330
#define GARG_GIB_MODEL				"models/metalplategibs.mdl"

#define STOMP_SPRITE_COUNT			10


#define ATTACH_EYE					1

ConVar sk_gargantua_health ( "sk_gargantua_health", "800" );
ConVar sk_gargantua_dmg_slash( "sk_gargantua_dmg_slash", "10" );
ConVar sk_gargantua_dmg_fire ( "sk_gargantua_dmg_fire", "3" );
ConVar sk_gargantua_dmg_stomp( "sk_gargantua_dmg_stomp", "50" );

enum
{
	TASK_SOUND_ATTACK = LAST_SHARED_TASK,
	TASK_FLAME_SWEEP,
};

enum
{
	SCHED_GARG_FLAME = LAST_SHARED_SCHEDULE,
	SCHED_GARG_SWIPE,
	SCHED_GARG_CHASE_ENEMY,
	SCHED_GARG_CHASE_ENEMY_FAILED,
};

LINK_ENTITY_TO_CLASS( monster_gargantua, CNPC_Gargantua );

BEGIN_DATADESC( CNPC_Gargantua )
	DEFINE_FIELD( m_pEyeGlow, FIELD_CLASSPTR  ),
	DEFINE_FIELD( m_eyeBrightness, FIELD_INTEGER ),
	DEFINE_FIELD( m_seeTime, FIELD_TIME ),
	DEFINE_FIELD( m_flameTime, FIELD_TIME ),
	DEFINE_FIELD( m_streakTime, FIELD_TIME ),
	DEFINE_ARRAY( m_pFlame, FIELD_CLASSPTR, 4 ),
	DEFINE_FIELD( m_flameX, FIELD_FLOAT ),
	DEFINE_FIELD( m_flameY, FIELD_FLOAT ),
	DEFINE_FIELD( m_flDmgTime, FIELD_TIME ),
	DEFINE_FIELD( m_painSoundTime, FIELD_TIME ),
END_DATADESC()

static void MoveToGround( Vector *position, CBaseEntity *ignore, const Vector &mins, const Vector &maxs )
{
	trace_t tr;
	// Find point on floor where enemy would stand at chasePosition
	Vector floor = *position;
	floor.z -= 1024;
	UTIL_TraceHull( *position, floor, mins, maxs, MASK_NPCSOLID, ignore, COLLISION_GROUP_NONE, &tr );
	if ( tr.fraction < 1 )
	{
		position->z = tr.endpos.z;
	}
}

class CStomp : public CBaseEntity
{
	DECLARE_CLASS( CStomp, CBaseEntity );

public:
	DECLARE_DATADESC();
		
	virtual void Precache();

	void Spawn( void );
	void Think( void );
	static CStomp *StompCreate( Vector &origin, Vector &end, float speed, CBaseEntity* pOwner );

private:
	Vector			m_vecMoveDir;
	float			m_flScale;
	float			m_flSpeed;
	unsigned int	m_uiFramerate;
	float			m_flDmgTime;
	CBaseEntity*	m_pOwner;

// UNDONE: re-use this sprite list instead of creating new ones all the time
//	CSprite		*m_pSprites[ STOMP_SPRITE_COUNT ];
};

BEGIN_DATADESC(CStomp)
	DEFINE_FIELD( m_vecMoveDir, FIELD_VECTOR ),
	DEFINE_FIELD( m_flScale, FIELD_FLOAT ),
	DEFINE_FIELD( m_flSpeed, FIELD_FLOAT ),
	DEFINE_FIELD( m_uiFramerate, FIELD_INTEGER ),
	DEFINE_FIELD( m_flDmgTime, FIELD_TIME ),
	DEFINE_FIELD( m_pOwner, FIELD_CLASSPTR ),
END_DATADESC()

LINK_ENTITY_TO_CLASS( garg_stomp, CStomp );
CStomp *CStomp::StompCreate( Vector &origin, Vector &end, float speed, CBaseEntity* pOwner )
{
	CStomp *pStomp = (CStomp*)CreateEntityByName( "garg_stomp" );

	pStomp->SetAbsOrigin( origin );
	Vector dir = (end - origin);
//	pStomp->m_flScale = dir.Length();
	pStomp->m_flScale = 2048;
	pStomp->m_vecMoveDir = dir;
	VectorNormalize( pStomp->m_vecMoveDir );
	pStomp->m_flSpeed = speed;
	pStomp->m_pOwner = pOwner;
	pStomp->Spawn();
	
	return pStomp;

}

void CStomp::Precache()
{
	BaseClass::Precache();

	PrecacheScriptSound( "Garg.Stomp" );
	PrecacheModel( GARG_STOMP_SPRITE_NAME );
}


void CStomp::Spawn( void )
{
	Precache();

	SetNextThink( gpGlobals->curtime );
	SetClassname( "garg_stomp" );
	m_flDmgTime = gpGlobals->curtime;

	m_uiFramerate = 30;
//	pev->rendermode = kRenderTransTexture;
//	SetBrightness( 0 );
	CPASAttenuationFilter filter( this );
	EmitSound( filter, entindex(), "Garg.Stomp" );

}


#define	STOMP_INTERVAL		0.025

void CStomp::Think( void )
{
	trace_t tr;

	SetNextThink( gpGlobals->curtime + 0.1 );

	// Do damage for this frame
	Vector vecStart = GetAbsOrigin();
	vecStart.z += 30;
	Vector vecEnd = vecStart + (m_vecMoveDir * m_flSpeed * gpGlobals->frametime);

	UTIL_TraceHull( vecStart, vecEnd, Vector(-32, -32, -32), Vector(32, 32, 32), MASK_SOLID, m_pOwner, COLLISION_GROUP_NONE, &tr );
//	NDebugOverlay::Line( vecStart, vecEnd, 0, 255, 0, false, 10.0f );
	
	if ( tr.m_pEnt )
	{
		CBaseEntity *pEntity = tr.m_pEnt;
		CTakeDamageInfo info( this, this, 50, DMG_SONIC );
		CalculateMeleeDamageForce( &info, m_vecMoveDir, tr.endpos );
		pEntity->TakeDamage( info );
	}

	// Accelerate the effect
	m_flSpeed += (gpGlobals->frametime) * m_uiFramerate;
	m_uiFramerate += (gpGlobals->frametime) * 2000;
	
	// Move and spawn trails
	if ( gpGlobals->curtime - m_flDmgTime > 0.2f )
	{
		m_flDmgTime = gpGlobals->curtime - 0.2f;
	}

	while ( gpGlobals->curtime - m_flDmgTime > STOMP_INTERVAL )
	{
		SetAbsOrigin( GetAbsOrigin() + m_vecMoveDir * m_flSpeed * STOMP_INTERVAL );
		for ( int i = 0; i < 2; i++ )
		{
			CSprite *pSprite = CSprite::SpriteCreate( GARG_STOMP_SPRITE_NAME, GetAbsOrigin(), TRUE );
			if ( pSprite )
			{
				UTIL_TraceLine( GetAbsOrigin(), GetAbsOrigin() - Vector(0,0,500), MASK_SOLID, this, COLLISION_GROUP_NONE, &tr );
				pSprite->SetAbsOrigin( tr.endpos );
//				pSprite->pev->velocity = Vector(RandomFloat(-200,200),RandomFloat(-200,200),175);
				pSprite->SetNextThink( gpGlobals->curtime + 0.3 );
				pSprite->SetThink( &CSprite::SUB_Remove );
				pSprite->SetTransparency( kRenderTransAdd, 255, 255, 255, 255, kRenderFxFadeFast );
			}
			g_pEffects->EnergySplash( tr.endpos, tr.plane.normal );
		}
		m_flDmgTime += STOMP_INTERVAL;
		// Scale has the "life" of this effect
		m_flScale -= STOMP_INTERVAL * m_flSpeed;
		if ( m_flScale <= 0 )
		{
			// Life has run out
			UTIL_Remove(this);
			CPASAttenuationFilter filter( this );
			StopSound( entindex(), CHAN_STATIC, "Garg.Stomp" );
		}
	}
}


//=========================================================================
// Gargantua
//=========================================================================

//=========================================================
// Spawn
//=========================================================
void CNPC_Gargantua::Spawn()
{
	Precache( );

	SetModel( "models/garg.mdl" );

	SetNavType(NAV_GROUND);
	SetSolid( SOLID_BBOX );
	AddSolidFlags( FSOLID_NOT_STANDABLE );
	SetMoveType( MOVETYPE_STEP );

	Vector vecSurroundingMins( -80, -80, 0 );
	Vector vecSurroundingMaxs( 80, 80, 214 );
	CollisionProp()->SetSurroundingBoundsType( USE_SPECIFIED_BOUNDS, &vecSurroundingMins, &vecSurroundingMaxs );

	m_bloodColor		= BLOOD_COLOR_GREEN;
	m_iHealth			= sk_gargantua_health.GetFloat();
	SetViewOffset( Vector ( 0, 0, 96 ) );// taken from mdl file
	m_flFieldOfView		= -0.2;// width of forward view cone ( as a dotproduct result )
	m_NPCState			= NPC_STATE_NONE;

	CapabilitiesAdd( bits_CAP_MOVE_GROUND );
	CapabilitiesAdd( bits_CAP_INNATE_RANGE_ATTACK1 | bits_CAP_INNATE_MELEE_ATTACK1 | bits_CAP_INNATE_MELEE_ATTACK2 );

	SetHullType( HULL_LARGE );
	SetHullSizeNormal();

	m_pEyeGlow = CSprite::SpriteCreate( GARG_EYE_SPRITE_NAME, GetAbsOrigin(), FALSE );
	m_pEyeGlow->SetTransparency( kRenderGlow, 255, 255, 255, 0, kRenderFxNoDissipation );
	m_pEyeGlow->SetAttachment( this, 1 );
	EyeOff();

	m_seeTime = gpGlobals->curtime + 5;
	m_flameTime = gpGlobals->curtime + 2;
		
	NPCInit();

	BaseClass::Spawn();

	// Give garg a healthy free knowledge.
	GetEnemies()->SetFreeKnowledgeDuration( 59.0f );
}

//=========================================================
// Precache - precaches all resources this monster needs
//=========================================================
void CNPC_Gargantua::Precache()
{
	PrecacheModel("models/garg.mdl");
	PrecacheModel( GARG_EYE_SPRITE_NAME );
	PrecacheModel( GARG_BEAM_SPRITE_NAME );
	PrecacheModel( GARG_BEAM_SPRITE2 );
	//gStompSprite = PRECACHE_MODEL( GARG_STOMP_SPRITE_NAME );
	gGargGibModel = PrecacheModel( GARG_GIB_MODEL );

	PrecacheScriptSound( "Garg.AttackHit" );
	PrecacheScriptSound( "Garg.AttackMiss" );
	PrecacheScriptSound( "Garg.Footstep" );
	PrecacheScriptSound( "Garg.Breath" );
	PrecacheScriptSound( "Garg.Attack" );
	PrecacheScriptSound( "Garg.Pain" );
	PrecacheScriptSound( "Garg.BeamAttackOn" );
	PrecacheScriptSound( "Garg.BeamAttackRun" );
	PrecacheScriptSound( "Garg.BeamAttackOff" );
	PrecacheScriptSound( "Garg.StompSound" );
}


Class_T  CNPC_Gargantua::Classify ( void )
{
	return CLASS_ALIEN_MONSTER;
}

void CNPC_Gargantua::PrescheduleThink( void )
{
	if ( !HasCondition( COND_SEE_ENEMY ) )
	{
		m_seeTime = gpGlobals->curtime + 5;
		EyeOff();
	}
	else
	{
		EyeOn( 200 );
	}
	
	EyeUpdate();
}

float CNPC_Gargantua::MaxYawSpeed ( void )	
{
	float ys = 60;

	switch ( GetActivity() )
	{
	case ACT_IDLE:
		ys = 60;
		break;
	case ACT_TURN_LEFT:
	case ACT_TURN_RIGHT:
		ys = 180;
		break;
	case ACT_WALK:
	case ACT_RUN:
		ys = 60;
		break;

	default:
		ys = 60;
		break;
	}

	return ys;
}

int CNPC_Gargantua::MeleeAttack1Conditions( float flDot, float flDist )
{
	if (flDot >= 0.7)
	{
		if ( flDist <= GARG_ATTACKDIST )
		{
			 return COND_CAN_MELEE_ATTACK1;
		}
	}

	return COND_NONE;
}


// Flame thrower madness!
int CNPC_Gargantua::MeleeAttack2Conditions( float flDot, float flDist )
{
	if ( gpGlobals->curtime > m_flameTime )
	{
		if ( flDot >= 0.8 )
		{
			if ( flDist > GARG_ATTACKDIST )
			{
				if ( flDist <= GARG_FLAME_LENGTH )
					 return COND_CAN_MELEE_ATTACK2;
			}
		}
	}
	
	return COND_NONE;
}

//=========================================================
// CheckRangeAttack1
// flDot is the cos of the angle of the cone within which
// the attack can occur.
//=========================================================
//
// Stomp attack
//
//=========================================================
int CNPC_Gargantua::RangeAttack1Conditions( float flDot, float flDist )
{
	if ( gpGlobals->curtime > m_seeTime )
	{
		if ( flDot >= 0.7 )
		{
			if ( flDist > GARG_ATTACKDIST )
			{
				 return COND_CAN_RANGE_ATTACK1;
			}
		}
	}

	return COND_NONE;
}

//=========================================================
// CheckTraceHullAttack - expects a length to trace, amount 
// of damage to do, and damage type. Returns a pointer to
// the damaged entity in case the monster wishes to do
// other stuff to the victim (punchangle, etc)
// Used for many contact-range melee attacks. Bites, claws, etc.

// Overridden for Gargantua because his swing starts lower as
// a percentage of his height (otherwise he swings over the
// players head)
//=========================================================
CBaseEntity* CNPC_Gargantua::GargantuaCheckTraceHullAttack(float flDist, int iDamage, int iDmgType)
{
	trace_t tr;

	Vector vForward, vUp;
	AngleVectors( GetAbsAngles(), &vForward, NULL, &vUp );

	Vector vecStart = GetAbsOrigin();
	vecStart.z += 64;
	Vector vecEnd = vecStart + ( vForward * flDist) - ( vUp * flDist * 0.3);

	//UTIL_TraceHull( vecStart, vecEnd, dont_ignore_monsters, head_hull, ENT(pev), &tr );

	UTIL_TraceEntity( this, GetAbsOrigin(), vecEnd, MASK_SOLID, &tr );
	
	if ( tr.m_pEnt )
	{
		CBaseEntity *pEntity = tr.m_pEnt;

		if ( iDamage > 0 )
		{
			CTakeDamageInfo info( this, this, iDamage, iDmgType );
			CalculateMeleeDamageForce( &info, vForward, tr.endpos );
			pEntity->TakeDamage( info );
		}

		return pEntity;
	}

	return NULL;
}

void CNPC_Gargantua::HandleAnimEvent( animevent_t *pEvent )
{
	CPASAttenuationFilter filter( this );

	switch( pEvent->event )
	{
	case GARG_AE_SLASH_LEFT:
		{
			// HACKHACK!!!
			CBaseEntity *pHurt = GargantuaCheckTraceHullAttack( GARG_ATTACKDIST + 10.0, sk_gargantua_dmg_slash.GetFloat(), DMG_SLASH );

			if (pHurt)
			{
				if ( pHurt->GetFlags() & ( FL_NPC | FL_CLIENT ) )
				{
					pHurt->ViewPunch( QAngle( -30, -30, 30 ) );

					Vector vRight;
					AngleVectors( GetAbsAngles(), NULL, &vRight, NULL );
					pHurt->SetAbsVelocity( pHurt->GetAbsVelocity() - vRight * 100 );
				}

				EmitSound( filter, entindex(), "Garg.AttackHit" );
			}
			else // Play a random attack miss sound
			{
				EmitSound( filter, entindex(),"Garg.AttackMiss" );
			}
		}
		break;

	case GARG_AE_RIGHT_FOOT:
	case GARG_AE_LEFT_FOOT:

		UTIL_ScreenShake( GetAbsOrigin(), 4.0, 3.0, 1.0, 1500, SHAKE_START );
		EmitSound( filter, entindex(), "Garg.Footstep" );
		break;

	case GARG_AE_STOMP:
		StompAttack();
		m_seeTime = gpGlobals->curtime + 12;
		break;

	case GARG_AE_BREATHE:
		EmitSound( filter, entindex(), "Garg.Breath" );
		break;

	default:
		BaseClass::HandleAnimEvent(pEvent);
		break;
	}
}

int CNPC_Gargantua::TranslateSchedule( int scheduleType )
{
	//TEMP TEMP
	if ( FlameIsOn() )
		 FlameDestroy();

	switch( scheduleType )
	{
		case SCHED_MELEE_ATTACK2:
			return SCHED_GARG_FLAME;
		case SCHED_MELEE_ATTACK1:
			return SCHED_GARG_SWIPE;

		case SCHED_CHASE_ENEMY:
			return SCHED_GARG_CHASE_ENEMY;
			
		case SCHED_CHASE_ENEMY_FAILED:
			return SCHED_GARG_CHASE_ENEMY_FAILED;

		case SCHED_ALERT_STAND:
			return SCHED_CHASE_ENEMY;
			 
		break;
	}

	return BaseClass::TranslateSchedule( scheduleType );
}

void CNPC_Gargantua::StartTask( const Task_t *pTask )
{
	switch ( pTask->iTask )
	{
	case TASK_FLAME_SWEEP:

		//TEMP TEMP
		FlameCreate();
		m_flWaitFinished = gpGlobals->curtime + pTask->flTaskData;
		m_flameTime = gpGlobals->curtime + 6;
		m_flameX = 0;
		m_flameY = 0;
		break;

	case TASK_SOUND_ATTACK:

		if ( random->RandomInt(0,100) < 30 )
		{
			CPASAttenuationFilter filter( this );
			EmitSound( filter, entindex(), "Garg.Attack" );
		}
			
		TaskComplete();
		break;
	
	case TASK_DIE:
		m_flWaitFinished = gpGlobals->curtime + 1.6;
		DeathEffect();
		// FALL THROUGH
	default: 
		BaseClass::StartTask( pTask );
		break;
	}
}

bool CNPC_Gargantua::ShouldGib( const CTakeDamageInfo &info )
{
	return false;
}

//=========================================================
// RunTask
//=========================================================
void CNPC_Gargantua::RunTask( const Task_t *pTask )
{
	switch ( pTask->iTask )
	{
	case TASK_DIE:

		if ( gpGlobals->curtime > m_flWaitFinished )
		{
			//TEMP TEMP
			m_nRenderFX = kRenderFxExplode;
			SetRenderColor( 255, 0, 0 , 255 );
			StopAnimation();
			SetNextThink( gpGlobals->curtime + 0.15 );
			SetThink( &CBaseEntity::SUB_Remove );

			int i;
		
			int parts = modelinfo->GetModelFrameCount( modelinfo->GetModel( gGargGibModel ) );

			for ( i = 0; i < 10; i++ )
			{
				CGib *pGib = CREATE_ENTITY( CGib, "gib" );

				pGib->Spawn( GARG_GIB_MODEL);
				
				int bodyPart = 0;

				if ( parts > 1 )
					 bodyPart = random->RandomInt( 0, parts-1 );

				pGib->SetBodygroup( 0, bodyPart );
				pGib->SetBloodColor( BLOOD_COLOR_YELLOW );
				pGib->m_material = matNone;
				pGib->SetAbsOrigin( GetAbsOrigin() );
				pGib->SetAbsVelocity( UTIL_RandomBloodVector() * random->RandomFloat( 300, 500 ) );
	
				pGib->SetNextThink( gpGlobals->curtime + 1.25 );
				pGib->SetThink( &CBaseEntity::SUB_FadeOut );
			}
	
			Vector vecSize = Vector( 200, 200, 128 );
			CPVSFilter filter( GetAbsOrigin() );
			te->BreakModel( filter, 0.0, GetAbsOrigin(), vec3_angle, vecSize, vec3_origin, 
				gGargGibModel, 200, 50, 3.0, BREAK_FLESH );
	
			return;
		}
		else
			BaseClass::RunTask( pTask );
		break;

	case TASK_FLAME_SWEEP:
		if ( gpGlobals->curtime > m_flWaitFinished )
		{
			//TEMP TEMP
			FlameDestroy();
			TaskComplete();
			FlameControls( 0, 0 );
			SetBoneController( 0, 0 );
			SetBoneController( 1, 0 );
		}
		else
		{
			bool cancel = false;

			QAngle angles = QAngle( 0, 0, 0 );

			//TEMP TEMP
			FlameUpdate();
			CBaseEntity *pEnemy = GetEnemy();

			if ( pEnemy )
			{
				Vector org = GetAbsOrigin();
				org.z += 64;
				Vector dir = pEnemy->BodyTarget(org) - org;

				VectorAngles( dir, angles );
				angles.x = -angles.x;
				angles.y -= GetAbsAngles().y;

				if ( dir.Length() > 400 )
					cancel = true;
			}
			if ( fabs(angles.y) > 60 )
				cancel = true;
			
			if ( cancel )
			{
				m_flWaitFinished -= 0.5;
				m_flameTime -= 0.5;
			}

			//TEMP TEMP
			//FlameControls( angles.x + 2 * sin(gpGlobals->curtime*8), angles.y + 28 * sin(gpGlobals->curtime*8.5) );
			FlameControls( angles.x, angles.y );
		}
		break;

	default:
		BaseClass::RunTask( pTask );
		break;
	}
}

void CNPC_Gargantua::FlameCreate( void )
{
	int			i;
	Vector		posGun;
	QAngle angleGun;

	trace_t trace;

	Vector	vForward;

	AngleVectors( GetAbsAngles(), &vForward );

 	for ( i = 0; i < 4; i++ )
	{
		if ( i < 2 )
			m_pFlame[i] = CBeam::BeamCreate( GARG_BEAM_SPRITE_NAME, 24.0 );
		else
			m_pFlame[i] = CBeam::BeamCreate( GARG_BEAM_SPRITE2, 14.0 );
		if ( m_pFlame[i] )
		{
			int attach = i%2;
			// attachment is 0 based in GetAttachment
			GetAttachment( attach+1, posGun, angleGun );

			Vector vecEnd = ( vForward * GARG_FLAME_LENGTH) + posGun;
			//UTIL_TraceLine( posGun, vecEnd, dont_ignore_monsters, edict(), &trace );

			UTIL_TraceLine ( posGun, vecEnd, MASK_SOLID, this, COLLISION_GROUP_NONE, &trace);
//			NDebugOverlay::Line( posGun, vecEnd, 255, 255, 255, false, 10.0f );

			m_pFlame[i]->PointEntInit( trace.endpos, this );
			if ( i < 2 )
				m_pFlame[i]->SetColor( 255, 130, 90 );
			else
				m_pFlame[i]->SetColor( 0, 120, 255 );
			m_pFlame[i]->SetBrightness( 190 );
			m_pFlame[i]->SetBeamFlags( FBEAM_SHADEIN );
			m_pFlame[i]->SetScrollRate( 20 );
			// attachment is 1 based in SetEndAttachment
			m_pFlame[i]->SetEndAttachment( attach + 2 );
			CSoundEnt::InsertSound( SOUND_COMBAT, posGun, 384, 0.3 );
		}
	}

	CPASAttenuationFilter filter4( this );
	EmitSound( filter4, entindex(), "Garg.BeamAttackOn" );
	EmitSound( filter4, entindex(), "Garg.BeamAttackRun" );
}


void CNPC_Gargantua::FlameControls( float angleX, float angleY )
{
	if ( angleY < -180 )
		angleY += 360;
	else if ( angleY > 180 )
		angleY -= 360;

	if ( angleY < -45 )
		angleY = -45;
	else if ( angleY > 45 )
		angleY = 45;

	m_flameX = UTIL_ApproachAngle( angleX, m_flameX, 4 );
	m_flameY = UTIL_ApproachAngle( angleY, m_flameY, 8 );
	SetBoneController( 0, m_flameY );
	SetBoneController( 1, m_flameX );
}


void CNPC_Gargantua::FlameUpdate( void )
{
	int				i;
	static float	offset[2] = { 60, -60 };
	trace_t			trace;
	Vector			vecStart;
	QAngle			angleGun;
	BOOL			streaks = FALSE;

	Vector			vForward;

	for ( i = 0; i < 2; i++ )
	{
		if ( m_pFlame[i] )
		{
			QAngle vecAim = GetAbsAngles();
			vecAim.x += -m_flameX;
			vecAim.y += m_flameY;

			AngleVectors( vecAim, &vForward );

			GetAttachment( i + 2, vecStart, angleGun );
			Vector vecEnd = vecStart + ( vForward * GARG_FLAME_LENGTH); //  - offset[i] * gpGlobals->v_right;
			
			UTIL_TraceLine ( vecStart, vecEnd, MASK_SOLID, this, COLLISION_GROUP_NONE, &trace);

			m_pFlame[i]->SetStartPos( trace.endpos );
			m_pFlame[i+2]->SetStartPos( (vecStart * 0.6) + (trace.endpos * 0.4) );

			if ( trace.fraction != 1.0 && gpGlobals->curtime > m_streakTime )
			{
				g_pEffects->Sparks( trace.endpos, 1, 1, &trace.plane.normal );
				streaks = TRUE;
				UTIL_DecalTrace( &trace, "SmallScorch" );
			}
			// RadiusDamage( trace.vecEndPos, pev, pev, gSkillData.gargantuaDmgFire, CLASS_ALIEN_MONSTER, DMG_BURN );
			FlameDamage( vecStart, trace.endpos, this, this, sk_gargantua_dmg_fire.GetFloat(), CLASS_ALIEN_MONSTER, DMG_BURN );

			CBroadcastRecipientFilter filter;
			GetAttachment(i + 2, vecStart, angleGun);
			te->DynamicLight( filter, 0.0, &vecStart, 255, 0, 0, 0, 48, 0.2, 150 );
		}
	}
	if ( streaks )
		m_streakTime = gpGlobals->curtime;
}



void CNPC_Gargantua::FlameDamage( Vector vecStart, Vector vecEnd, CBaseEntity *pevInflictor, CBaseEntity *pevAttacker, float flDamage, int iClassIgnore, int bitsDamageType )
{
	CBaseEntity *pEntity = NULL;
	trace_t		tr;
	float		flAdjustedDamage;
	Vector		vecSpot;

	Vector vecMid = (vecStart + vecEnd) * 0.5;

//	float searchRadius = (vecStart - vecMid).Length();
	float searchRadius = GARG_FLAME_LENGTH;
	float maxDamageRadius = searchRadius / 2.0;

	Vector vecAim = (vecEnd - vecStart);

	VectorNormalize( vecAim );

	// iterate on all entities in the vicinity.
	while ((pEntity = gEntList.FindEntityInSphere( pEntity, GetAbsOrigin(), searchRadius )) != NULL)
	{

		if ( pEntity->m_takedamage != DAMAGE_NO )
		{
			// UNDONE: this should check a damage mask, not an ignore
			if ( iClassIgnore != CLASS_NONE && pEntity->Classify() == iClassIgnore )
			{// houndeyes don't hurt other houndeyes with their attack
				continue;
			}
			
			vecSpot = pEntity->BodyTarget( vecMid );
		
			float dist = DotProduct( vecAim, vecSpot - vecMid );
			if (dist > searchRadius)
				dist = searchRadius;
			else if (dist < -searchRadius)
				dist = searchRadius;
			
			Vector vecSrc = vecMid + dist * vecAim;

			UTIL_TraceLine ( vecStart, vecSpot, MASK_SOLID, this, COLLISION_GROUP_NONE, &tr);
//			NDebugOverlay::Line( vecStart, vecSpot, 0, 255, 0, false, 10.0f );

			if ( tr.fraction == 1.0 || tr.m_pEnt == pEntity )
			{// the explosion can 'see' this entity, so hurt them!
				// decrease damage for an ent that's farther from the flame.
				dist = ( vecSrc - tr.endpos ).Length();

				if (dist > maxDamageRadius)
				{
					flAdjustedDamage = flDamage - (dist - maxDamageRadius) * 0.4;
					if (flAdjustedDamage <= 0)
						continue;
				}
				else
				{
					flAdjustedDamage = flDamage;
				}

				// ALERT( at_console, "hit %s\n", STRING( pEntity->pev->classname ) );
				if (tr.fraction != 1.0)
				{
					ClearMultiDamage( );

					Vector vDir = (tr.endpos - vecSrc);
					VectorNormalize( vDir );

					CTakeDamageInfo info( pevInflictor, pevAttacker, flAdjustedDamage, bitsDamageType );
					CalculateMeleeDamageForce( &info, vDir, tr.endpos );
					pEntity->DispatchTraceAttack( info, vDir, &tr );
					ApplyMultiDamage();
				}
				else
				{
					pEntity->TakeDamage( CTakeDamageInfo( pevInflictor, pevAttacker, flAdjustedDamage, bitsDamageType ) );
				}
			}
		}
	}
}


void CNPC_Gargantua::FlameDestroy( void )
{
	int i;

	CPASAttenuationFilter filter4( this );
	EmitSound( filter4, entindex(), "Garg.BeamAttackOff" );
	
	for ( i = 0; i < 4; i++ )
	{
		if ( m_pFlame[i] )
		{
			UTIL_Remove( m_pFlame[i] );
			m_pFlame[i] = NULL;
		}
	}
}


void CNPC_Gargantua::EyeOn( int level )
{
	m_eyeBrightness = level;	
}

void CNPC_Gargantua::EyeOff( void )
{
	m_eyeBrightness = 0;
}

void CNPC_Gargantua::EyeUpdate( void )
{
	if ( m_pEyeGlow )
	{
		m_pEyeGlow->SetBrightness( UTIL_Approach( m_eyeBrightness, m_pEyeGlow->GetBrightness(), 26 ), 0.5f );
		if ( m_pEyeGlow->GetBrightness() == 0 )
		{
			m_pEyeGlow->AddEffects( EF_NODRAW );
		}
		else
		{
			m_pEyeGlow->RemoveEffects( EF_NODRAW );
		}
	}
}


void CNPC_Gargantua::StompAttack( void )
{
	trace_t trace;

	Vector vecForward;
	AngleVectors(GetAbsAngles(), &vecForward );
	Vector vecStart = GetAbsOrigin() + Vector(0,0,60) + 35 * vecForward;

	CBaseEntity* pPlayer = GetEnemy();
	if ( !pPlayer )
		return;

	Vector vecAim = pPlayer->GetAbsOrigin() - GetAbsOrigin();
	VectorNormalize( vecAim );
	Vector vecEnd = (vecAim * 1024) + vecStart;

	UTIL_TraceLine( vecStart, vecEnd, MASK_SOLID, this, COLLISION_GROUP_NONE, &trace );
//	NDebugOverlay::Line( vecStart, vecEnd, 255, 0, 0, false, 10.0f );

	CStomp::StompCreate( vecStart, trace.endpos, 0, this );
	UTIL_ScreenShake( GetAbsOrigin(), 12.0, 100.0, 2.0, 1000, SHAKE_START );
	CPASAttenuationFilter filter( this );
	EmitSound( filter, entindex(), "Garg.StompSound" );

	UTIL_TraceLine( GetAbsOrigin(), GetAbsOrigin() - Vector(0,0,20), MASK_SOLID, this, COLLISION_GROUP_NONE, &trace );
	if ( trace.fraction < 1.0 )
	{
		UTIL_DecalTrace( &trace, "SmallScorch" );
	}
}

void CNPC_Gargantua::DeathEffect( void )
{
	int i;

	Vector vForward;
	AngleVectors( GetAbsAngles(), &vForward );
	Vector deathPos = GetAbsOrigin() + vForward * 100;

	Vector position = GetAbsOrigin();
	position.z += 32;

	CPASFilter filter( GetAbsOrigin() );
	for ( i = 0; i < 7; i++)
	{
		te->Explosion( filter, i * 0.2,	&GetAbsOrigin(), g_sModelIndexFireball,	10, 15, TE_EXPLFLAG_NONE, 100, 0 );
		position.z += 15;
	}

	UTIL_Smoke(GetAbsOrigin(),random->RandomInt(10, 15), 10);
	UTIL_ScreenShake( GetAbsOrigin(), 25.0, 100.0, 5.0, 1000, SHAKE_START );

}

void CNPC_Gargantua::Event_Killed( const CTakeDamageInfo &info )
{
	EyeOff();
	UTIL_Remove( m_pEyeGlow );
	m_pEyeGlow = NULL;
	BaseClass::Event_Killed( info );
	m_takedamage = DAMAGE_NO;
}

void CNPC_Gargantua::TraceAttack( const CTakeDamageInfo &info, const Vector &vecDir, trace_t *ptr, CDmgAccumulator *pAccumulator )
{
	CTakeDamageInfo subInfo = info;

	if ( !IsAlive() )
	{
		BaseClass::TraceAttack( subInfo, vecDir, ptr, pAccumulator );
		return;
	}

	// UNDONE: Hit group specific damage?
	if ( subInfo.GetDamageType() & ( GARG_DAMAGE | DMG_BLAST ) )
	{
		if ( m_painSoundTime < gpGlobals->curtime )
		{
			CPASAttenuationFilter filter( this );
			EmitSound( filter, entindex(), "Garg.Pain" );

			m_painSoundTime = gpGlobals->curtime + random->RandomFloat( 2.5, 4 );
		}
	}

	int bitsDamageType = subInfo.GetDamageType();

	bitsDamageType &= GARG_DAMAGE;

	subInfo.SetDamageType( bitsDamageType );

	if ( subInfo.GetDamageType() == 0 )
	{
		if ( m_flDmgTime != gpGlobals->curtime || (random->RandomInt( 0, 100 ) < 20) )
		{
			g_pEffects->Ricochet(ptr->endpos, -vecDir );
			m_flDmgTime = gpGlobals->curtime;
		}

		subInfo.SetDamage( 0 );
	}

	BaseClass::TraceAttack( subInfo, vecDir, ptr, pAccumulator );
}

int CNPC_Gargantua::OnTakeDamage_Alive( const CTakeDamageInfo &info )
{
	if( GetState() == NPC_STATE_SCRIPT )
	{
		// Invulnerable while scripted. This fixes the problem where garg wouldn't
		// explode in C2A1 because for some reason he wouldn't die while scripted, he'd
		// only freeze in place. Now he's just immune until he gets to the script and stops.
		return 0;
	}

	CTakeDamageInfo subInfo = info;

	float flDamage = subInfo.GetDamage();

	if ( IsAlive() )
	{
		if ( !(subInfo.GetDamageType() & GARG_DAMAGE) )
		{
			 flDamage *= 0.01;
			 subInfo.SetDamage( flDamage );
		}
		if ( subInfo.GetDamageType() & DMG_BLAST )
		{
			SetCondition( COND_LIGHT_DAMAGE );
		}
	}

	return BaseClass::OnTakeDamage_Alive( subInfo );
}

AI_BEGIN_CUSTOM_NPC( monster_gargantua, CNPC_Gargantua )

DECLARE_TASK ( TASK_SOUND_ATTACK )
DECLARE_TASK ( TASK_FLAME_SWEEP )

	//=========================================================
	// > SCHED_GARG_FLAME
	//=========================================================
	DEFINE_SCHEDULE
	(
		SCHED_GARG_FLAME,

		"	Tasks"
		"		TASK_STOP_MOVING			0"
		"		TASK_FACE_ENEMY				0"
		"		TASK_SOUND_ATTACK			0"
		"		TASK_SET_ACTIVITY			ACTIVITY:ACT_MELEE_ATTACK2"
		"		TASK_FLAME_SWEEP			4.5"
		"		TASK_SET_ACTIVITY			ACTIVITY:ACT_IDLE"
	)

	//=========================================================
	// > SCHED_GARG_SWIPE
	//=========================================================
	DEFINE_SCHEDULE
	(
		SCHED_GARG_SWIPE,

		"	Tasks"
		"		TASK_STOP_MOVING			0"
		"		TASK_FACE_ENEMY				0"
		"		TASK_MELEE_ATTACK1			0"
		"	"
		"	Interrupts"
		"   COND_CAN_MELEE_ATTACK2"
	)

	DEFINE_SCHEDULE
	(
		SCHED_GARG_CHASE_ENEMY,

		"	Tasks"
		"		TASK_STOP_MOVING				0"
		"		TASK_SET_FAIL_SCHEDULE			SCHEDULE:SCHED_GARG_CHASE_ENEMY_FAILED"
		"		TASK_GET_CHASE_PATH_TO_ENEMY	300"
		"		TASK_RUN_PATH					0"
		"		TASK_WAIT_FOR_MOVEMENT			0"
		"		TASK_FACE_ENEMY					0"
		""
		"	Interrupts"
		"		COND_NEW_ENEMY"
		"		COND_ENEMY_DEAD"
		"		COND_ENEMY_UNREACHABLE"
		"		COND_CAN_RANGE_ATTACK1"
		"		COND_CAN_MELEE_ATTACK1"
		"		COND_CAN_RANGE_ATTACK2"
		"		COND_CAN_MELEE_ATTACK2"
		"		COND_TOO_CLOSE_TO_ATTACK"
		"		COND_LOST_ENEMY"
	);

	DEFINE_SCHEDULE
	(
		SCHED_GARG_CHASE_ENEMY_FAILED,

		"	Tasks"
		"		TASK_SET_ROUTE_SEARCH_TIME		2"	// Spend 2 seconds trying to build a path if stuck
		"		TASK_GET_PATH_TO_RANDOM_NODE	180"
		"		TASK_WALK_PATH					0"
		"		TASK_WAIT_FOR_MOVEMENT			0"
		""
		"	Interrupts"
		"		COND_NEW_ENEMY"
		"		COND_ENEMY_DEAD"
		"		COND_CAN_RANGE_ATTACK1"
		"		COND_CAN_MELEE_ATTACK1"
		"		COND_CAN_RANGE_ATTACK2"
		"		COND_CAN_MELEE_ATTACK2"
	);

AI_END_CUSTOM_NPC()