Function NPC_FacePosition

code/game/NPC_utils.cpp:1334–1394

*/

qboolean NPC_FacePosition( vec3_t position, qboolean doPitch )
{
	vec3_t		muzzle;
	qboolean	facing = qtrue;

	//Get the positions
	if ( NPC->client && (NPC->client->NPC_class == CLASS_RANCOR || NPC->client->NPC_class == CLASS_WAMPA || NPC->client->NPC_class == CLASS_SAND_CREATURE) )
	{
		CalcEntitySpot( NPC, SPOT_ORIGIN, muzzle );
		muzzle[2] += NPC->maxs[2] * 0.75f;
	}
	else if ( NPC->client && NPC->client->NPC_class == CLASS_GALAKMECH )
	{
		CalcEntitySpot( NPC, SPOT_WEAPON, muzzle );
	}
	else
	{
		CalcEntitySpot( NPC, SPOT_HEAD_LEAN, muzzle );//SPOT_HEAD
		if ( NPC->client->NPC_class == CLASS_ROCKETTROOPER )
		{//*sigh*, look down more
			position[2] -= 32;
		}
	}

	//Find the desired angles
	vec3_t	angles;

	GetAnglesForDirection( muzzle, position, angles );

	NPCInfo->desiredYaw		= AngleNormalize360( angles[YAW] );
	NPCInfo->desiredPitch	= AngleNormalize360( angles[PITCH] );

	if ( NPC->enemy && NPC->enemy->client && NPC->enemy->client->NPC_class == CLASS_ATST )
	{
		// FIXME: this is kind of dumb, but it was the easiest way to get it to look sort of ok
		NPCInfo->desiredYaw	+= Q_flrand( -5, 5 ) + sin( level.time * 0.004f ) * 7;
		NPCInfo->desiredPitch += Q_flrand( -2, 2 );
	}
	//Face that yaw
	NPC_UpdateAngles( qtrue, qtrue );

	//Find the delta between our goal and our current facing
	float yawDelta = AngleNormalize360( NPCInfo->desiredYaw - ( SHORT2ANGLE( ucmd.angles[YAW] + client->ps.delta_angles[YAW] ) ) );

	//See if we are facing properly
	if ( fabs( yawDelta ) > VALID_ATTACK_CONE )
		facing = qfalse;

	if ( doPitch )
	{
		//Find the delta between our goal and our current facing
		float currentAngles = ( SHORT2ANGLE( ucmd.angles[PITCH] + client->ps.delta_angles[PITCH] ) );
		float pitchDelta = NPCInfo->desiredPitch - currentAngles;

		//See if we are facing properly
		if ( fabs( pitchDelta ) > VALID_ATTACK_CONE )
			facing = qfalse;
	}