PartAccessor.java

/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.integration.modules.theoneprobe.part;


import java.util.Optional;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Vec3d;

import mcjty.theoneprobe.api.IProbeHitData;

import appeng.api.parts.IPart;
import appeng.api.parts.IPartHost;
import appeng.api.parts.SelectedPart;


public final class PartAccessor
{

	public Optional<IPart> getMaybePart( final TileEntity te, final IProbeHitData data )
	{
		if( te instanceof IPartHost )
		{
			BlockPos pos = data.getPos();
			final Vec3d position = data.getHitVec().addVector( -pos.getX(), -pos.getY(), -pos.getZ() );
			final IPartHost host = (IPartHost) te;
			final SelectedPart sp = host.selectPart( position );

			if( sp.part != null )
			{
				return Optional.of( sp.part );
			}
		}

		return Optional.empty();
	}
}