Method GetGoodLocatorIndex

trinity/Eve/SpaceObject/EveSpaceObject2.cpp:2364–2423

}

int EveSpaceObject2::GetGoodLocatorIndex( const Vector3& position, BlueSharedString locatorSetName )
{
	float minDistance = FLT_MAX;
	float maxDistance = FLT_MIN;
	float bestDirectionFit = 0.0f;

	Vector3 posInObjectSpace = (Vector3)XMVector3Transform( position, m_invWorldTransform );
	auto locators = GetLocatorsForSet( locatorSetName );
	if( !locators )
	{
		return 0;
	}

	Vector3 locatorPosition, locatorDirection;

	for( size_t i = 0; i < locators->size(); ++i )
	{
		auto& locator = ( *locators )[i];
		GetLocatorInObjectSpace( locatorPosition, locatorDirection, locator );
		if( IsLocatorFacingPosition( locatorDirection, posInObjectSpace ) )
		{
			Vector3 v( XMVectorSubtract( locatorPosition, posInObjectSpace ) );
			float length = Length( v );
			minDistance = min( minDistance, length );
			maxDistance = max( maxDistance, length );
			v = Normalize( v );
			float directionFit = GetDirectionFit( locatorDirection, v );
			bestDirectionFit = max( bestDirectionFit, directionFit );
		}
	}

	float desiredFit = TriRand() * ( 0.25f - ( 1.0f - bestDirectionFit ) ) + 0.75f;
	float bestFit = 1.0f;

	int bestLocator = -1;
	for( size_t i = 0; i < locators->size(); ++i )
	{
		auto& locator = ( *locators )[i];
		GetLocatorInObjectSpace( locatorPosition, locatorDirection, locator );
		if( IsLocatorFacingPosition( locatorDirection, posInObjectSpace ) )
		{
			Vector3 v( XMVectorSubtract( locatorPosition, posInObjectSpace ) );
			float fitValue = GetDistanceFit( minDistance, maxDistance - minDistance, v );
			v = Normalize( v );
			fitValue *= GetDirectionFit( locatorDirection, v );
			if( std::abs( fitValue - desiredFit ) < bestFit )
			{
				bestFit = std::abs( fitValue - desiredFit );
				bestLocator = (int)i;
			}
		}
	}

	if( bestLocator < 0 )
	{
		bestLocator = GetClosestLocatorIndex( &position, locatorSetName );
	}