Method GetClosestLocatorIndex

trinity/Eve/SpaceObject/EveSpaceObject2.cpp:2264–2296

}

int EveSpaceObject2::GetClosestLocatorIndex( const Vector3* position, BlueSharedString locatorSetName )
{
	auto locators = GetLocatorsForSet( locatorSetName );
	if( !locators )
	{
		return 0;
	}

	// Run a single pass on the transformed locator positions and select the closest
	float closestLength = std::numeric_limits<float>::max();
	int closestIndex = -1;

	Vector3 posInObjectSpace = (Vector3)XMVector3Transform( *position, m_invWorldTransform );

	Vector3 locatorPosition, locatorDirection;

	for( unsigned int i = 0; i < locators->size(); ++i )
	{
		auto& locator = ( *locators )[i];
		GetLocatorInObjectSpace( locatorPosition, locatorDirection, locator );
		if( IsLocatorFacingPosition( locatorDirection, posInObjectSpace ) )
		{
			auto distanceFromLocator = LengthSq( locatorPosition - posInObjectSpace );
			if( distanceFromLocator < closestLength )
			{
				closestIndex = int( i );
				closestLength = distanceFromLocator;
			}
		}
	}

	return closestIndex;
}

// Function to find closest locator without worrying about direction of the locator
int EveSpaceObject2::GetCloseLocatorIndex( const Vector3& position, BlueSharedString locatorSetName )