/*
* Minecraft Forge
* Copyright (c) 2016.
*
* This library 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 version 2.1
* of the License.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.minecraftforge.fluids.capability;
import javax.annotation.Nullable;
import net.minecraftforge.fluids.*;
/**
* Implement this interface as a capability which should handle fluids, generally storing them in
* one or more internal {@link IFluidTank} objects.
* <p/>
* A reference implementation is provided {@link TileFluidHandler}.
*/
public interface IFluidHandler
{
/**
* Returns an array of objects which represent the internal tanks.
* These objects cannot be used to manipulate the internal tanks.
*
* @return Properties for the relevant internal tanks.
*/
IFluidTankProperties[] getTankProperties();
/**
* Fills fluid into internal tanks, distribution is left entirely to the IFluidHandler.
*
* @param resource FluidStack representing the Fluid and maximum amount of fluid to be filled.
* @param doFill If false, fill will only be simulated.
* @return Amount of resource that was (or would have been, if simulated) filled.
*/
int fill(FluidStack resource, boolean doFill);
/**
* Drains fluid out of internal tanks, distribution is left entirely to the IFluidHandler.
*
* @param resource FluidStack representing the Fluid and maximum amount of fluid to be drained.
* @param doDrain If false, drain will only be simulated.
* @return FluidStack representing the Fluid and amount that was (or would have been, if
* simulated) drained.
*/
@Nullable
FluidStack drain(FluidStack resource, boolean doDrain);
/**
* Drains fluid out of internal tanks, distribution is left entirely to the IFluidHandler.
* <p/>
* This method is not Fluid-sensitive.
*
* @param maxDrain Maximum amount of fluid to drain.
* @param doDrain If false, drain will only be simulated.
* @return FluidStack representing the Fluid and amount that was (or would have been, if
* simulated) drained.
*/
@Nullable
FluidStack drain(int maxDrain, boolean doDrain);
}