Function NPC_Think

code/game/NPC.cpp:2365–2533

AI_TIMERS

extern int AITime;
#endif//	AI_TIMERS
void NPC_Think ( gentity_t *self)//, int msec )
{
	vec3_t	oldMoveDir;

	self->nextthink = level.time + FRAMETIME/2;

	SetNPCGlobals( self );

	memset( &ucmd, 0, sizeof( ucmd ) );

	VectorCopy( self->client->ps.moveDir, oldMoveDir );
	VectorClear( self->client->ps.moveDir );
	// see if NPC ai is frozen
	if ( debugNPCFreeze->integer || (NPC->svFlags&SVF_ICARUS_FREEZE) )
	{
		NPC_UpdateAngles( qtrue, qtrue );
		ClientThink(self->s.number, &ucmd);
		VectorCopy(self->s.origin, self->s.origin2 );
		return;
	}

	if(!self || !self->NPC || !self->client)
	{
		return;
	}

	// dead NPCs have a special think, don't run scripts (for now)
	//FIXME: this breaks deathscripts
	if ( self->health <= 0 )
	{
		DeadThink();
		if ( NPCInfo->nextBStateThink <= level.time )
		{
			if( self->m_iIcarusID != IIcarusInterface::ICARUS_INVALID && !stop_icarus )
			{
				IIcarusInterface::GetIcarus()->Update( self->m_iIcarusID );
			}
		}
		return;
	}

	// TODO! Tauntaun's (and other creature vehicles?) think, we'll need to make an exception here to allow that.

	if ( self->client
		&& self->client->NPC_class == CLASS_VEHICLE
		&& self->NPC_type
		&& ( !self->m_pVehicle->m_pVehicleInfo->Inhabited( self->m_pVehicle ) ) )
	{//empty swoop logic
		if ( self->owner )
		{//still have attached owner, check and see if can forget him (so he can use me later)
			vec3_t dir2owner;
			VectorSubtract( self->owner->currentOrigin, self->currentOrigin, dir2owner );

			gentity_t *oldOwner = self->owner;
			self->owner = NULL;//clear here for that SpotWouldTelefrag check...?

			if ( VectorLengthSquared( dir2owner ) > 128*128
				|| !(self->clipmask&oldOwner->clipmask)