ForgePatch/common/net/minecraftforge/liquids/LiquidEvent.java

package net.minecraftforge.liquids;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.Event;

public class LiquidEvent extends Event {
	public final LiquidStack liquid;
	public final int x;
	public final int y;
	public final int z;
	public final World world;

	public LiquidEvent(LiquidStack liquid, World world, int x, int y, int z)
	{
		this.liquid = liquid;
		this.world = world;
		this.x = x;
		this.y = y;
		this.z = z;
	}

	/**
	 * Mods should fire this event when they move liquids around (pipe networks etc)
	 *
	 * @author cpw
	 *
	 */
	public static class LiquidMotionEvent extends LiquidEvent {
		public LiquidMotionEvent(LiquidStack liquid, World world, int x, int y, int z) {
			super(liquid, world, x, y, z);
		}
	}

	/**
	 * Mods should fire this event when a liquid is {@link ILiquidTank#fill(LiquidStack, boolean)} their tank implementation.
	 * {@link LiquidTank} does.
	 *
	 * @author cpw
	 *
	 */
	public static class LiquidFillingEvent extends LiquidEvent {
		public final ILiquidTank tank;

		public LiquidFillingEvent(LiquidStack liquid, World world, int x, int y, int z, ILiquidTank tank) {
			super(liquid, world, x, y, z);
			this.tank = tank;
		}
	}

	/**
	 * Mods should fire this event when a liquid is {@link ILiquidTank#drain(int, boolean)} from their tank.
	 * @author cpw
	 *
	 */
	public static class LiquidDrainingEvent extends LiquidEvent {
		public final ILiquidTank tank;

		public LiquidDrainingEvent(LiquidStack liquid, World world, int x, int y, int z, ILiquidTank tank) {
			super(liquid, world, x, y, z);
			this.tank = tank;
		}
	}


	/**
	 * Mods should fire this event when a liquid "spills", for example, if a block containing liquid is broken.
	 *
	 * @author cpw
	 *
	 */
	public static class LiquidSpilledEvent extends LiquidEvent {
		public LiquidSpilledEvent(LiquidStack liquid, World world, int x, int y, int z) {
			super(liquid, world, x, y, z);
		}
	}

	/**
	 * A handy shortcut for firing the various liquid events
	 *
	 * @param event
	 */
	public static final void fireEvent(LiquidEvent event) {
		MinecraftForge.EVENT_BUS.post(event);
	}
}