BlockGenericPipe.java

/**
 * Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
 * http://www.mod-buildcraft.com
 * <p/>
 * BuildCraft is distributed under the terms of the Minecraft Mod Public
 * License 1.0, or MMPL. Please check the contents of the license located in
 * http://www.mod-buildcraft.com/MMPL-1.0.txt
 */
package buildcraft.transport;


import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.BlockRedstoneWire;
import net.minecraft.block.material.Material;
import net.minecraft.client.Minecraft;
import net.minecraft.client.particle.EffectRenderer;
import net.minecraft.client.particle.EntityDiggingFX;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.IIcon;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.util.Vec3;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.util.BlockSnapshot;
import net.minecraftforge.common.util.ForgeDirection;
import net.minecraftforge.event.world.BlockEvent;

import buildcraft.BuildCraftTransport;
import buildcraft.api.blocks.IColorRemovable;
import buildcraft.api.core.BCLog;
import buildcraft.api.core.BlockIndex;
import buildcraft.api.items.IMapLocation;
import buildcraft.api.tools.IToolWrench;
import buildcraft.api.transport.IPipe;
import buildcraft.api.transport.IPipeTile;
import buildcraft.api.transport.PipeWire;
import buildcraft.api.transport.pluggable.IPipePluggableItem;
import buildcraft.api.transport.pluggable.PipePluggable;
import buildcraft.core.BCCreativeTab;
import buildcraft.core.CoreConstants;
import buildcraft.core.lib.block.BlockBuildCraft;
import buildcraft.core.lib.utils.MatrixTranformations;
import buildcraft.core.lib.utils.Utils;
import buildcraft.core.proxy.CoreProxy;
import buildcraft.transport.gates.GatePluggable;
import buildcraft.transport.render.PipeRendererWorld;

public class BlockGenericPipe extends BlockBuildCraft implements IColorRemovable {

	public static Map<Item, Class<? extends Pipe<?>>> pipes = new HashMap<Item, Class<? extends Pipe<?>>>();
	public static Map<BlockIndex, Pipe<?>> pipeRemoved = new HashMap<BlockIndex, Pipe<?>>();

	private static long lastRemovedDate = -1;

	private static final ForgeDirection[] DIR_VALUES = ForgeDirection.values();

	public enum Part {
		Pipe,
		Pluggable
	}

	public static class RaytraceResult {
		public final Part hitPart;
		public final MovingObjectPosition movingObjectPosition;
		public final AxisAlignedBB boundingBox;
		public final ForgeDirection sideHit;

		RaytraceResult(Part hitPart, MovingObjectPosition movingObjectPosition, AxisAlignedBB boundingBox, ForgeDirection side) {
			this.hitPart = hitPart;
			this.movingObjectPosition = movingObjectPosition;
			this.boundingBox = boundingBox;
			this.sideHit = side;
		}

		@Override
		public String toString() {
			return String.format("RayTraceResult: %s, %s", hitPart == null ? "null" : hitPart.name(), boundingBox == null ? "null" : boundingBox.toString());
		}
	}

	/* Defined subprograms ************************************************* */
	public BlockGenericPipe() {
		super(Material.glass);
		setCreativeTab(null);
	}

	@Override
	public float getBlockHardness(World par1World, int par2, int par3, int par4) {
		return BuildCraftTransport.pipeDurability;
	}

	/* Rendering Delegation Attributes ************************************* */
	@Override
	public int getRenderType() {
		return TransportProxy.pipeModel;
	}

	@Override
	public boolean canRenderInPass(int pass) {
		PipeRendererWorld.renderPass = pass;
		return true;
	}

	@Override
	public int getRenderBlockPass() {
		return 1;
	}

	@Override
	public boolean isOpaqueCube() {
		return false;
	}

	@Override
	public boolean renderAsNormalBlock() {
		return false;
	}

	@Override
	public boolean canBeReplacedByLeaves(IBlockAccess world, int x, int y, int z) {
		return false;
	}

	@Override
	public boolean isSideSolid(IBlockAccess world, int x, int y, int z, ForgeDirection side) {
		TileEntity tile = world.getTileEntity(x, y, z);

		if (tile instanceof ISolidSideTile) {
			return ((ISolidSideTile) tile).isSolidOnSide(side);
		}

		return false;
	}

	@Override
	public boolean isNormalCube() {
		return false;
	}

	@SuppressWarnings("rawtypes")
	@Override
	public void addCollisionBoxesToList(World world, int i, int j, int k, AxisAlignedBB axisalignedbb, List arraylist, Entity par7Entity) {
		setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS);
		super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);

		TileEntity tile1 = world.getTileEntity(i, j, k);
		if (tile1 instanceof TileGenericPipe) {
			TileGenericPipe tileG = (TileGenericPipe) tile1;

			if (tileG.isPipeConnected(ForgeDirection.WEST)) {
				setBlockBounds(0.0F, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.isPipeConnected(ForgeDirection.EAST)) {
				setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, 1.0F, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.isPipeConnected(ForgeDirection.DOWN)) {
				setBlockBounds(CoreConstants.PIPE_MIN_POS, 0.0F, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.isPipeConnected(ForgeDirection.UP)) {
				setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, 1.0F, CoreConstants.PIPE_MAX_POS);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.isPipeConnected(ForgeDirection.NORTH)) {
				setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, 0.0F, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.isPipeConnected(ForgeDirection.SOUTH)) {
				setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			float facadeThickness = TransportConstants.FACADE_THICKNESS;

			if (tileG.hasEnabledFacade(ForgeDirection.EAST)) {
				setBlockBounds(1 - facadeThickness, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.hasEnabledFacade(ForgeDirection.WEST)) {
				setBlockBounds(0.0F, 0.0F, 0.0F, facadeThickness, 1.0F, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.hasEnabledFacade(ForgeDirection.UP)) {
				setBlockBounds(0.0F, 1 - facadeThickness, 0.0F, 1.0F, 1.0F, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.hasEnabledFacade(ForgeDirection.DOWN)) {
				setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, facadeThickness, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.hasEnabledFacade(ForgeDirection.SOUTH)) {
				setBlockBounds(0.0F, 0.0F, 1 - facadeThickness, 1.0F, 1.0F, 1.0F);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}

			if (tileG.hasEnabledFacade(ForgeDirection.NORTH)) {
				setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, facadeThickness);
				super.addCollisionBoxesToList(world, i, j, k, axisalignedbb, arraylist, par7Entity);
			}
		}
		setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
	}

	@SideOnly(Side.CLIENT)
	@Override
	public AxisAlignedBB getSelectedBoundingBoxFromPool(World world, int x, int y, int z) {
		RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, Minecraft.getMinecraft().thePlayer);

		if (rayTraceResult != null && rayTraceResult.boundingBox != null) {
			AxisAlignedBB box = rayTraceResult.boundingBox;
			switch (rayTraceResult.hitPart) {
				case Pluggable: {
					float scale = 0.001F;
					box = box.expand(scale, scale, scale);
					break;
				}
				case Pipe: {
					float scale = 0.08F;
					box = box.expand(scale, scale, scale);
					break;
				}
			}
			return box.getOffsetBoundingBox(x, y, z);
		}
		return super.getSelectedBoundingBoxFromPool(world, x, y, z).expand(-0.85F, -0.85F, -0.85F);
	}

	@Override
	public MovingObjectPosition collisionRayTrace(World world, int x, int y, int z, Vec3 origin, Vec3 direction) {
		RaytraceResult raytraceResult = doRayTrace(world, x, y, z, origin, direction);

		if (raytraceResult == null) {
			return null;
		} else {
			return raytraceResult.movingObjectPosition;
		}
	}

	public RaytraceResult doRayTrace(World world, int x, int y, int z, EntityPlayer player) {
		double reachDistance = 5;

		if (player instanceof EntityPlayerMP) {
			reachDistance = ((EntityPlayerMP) player).theItemInWorldManager.getBlockReachDistance();
		}

		double eyeHeight = world.isRemote ? player.getEyeHeight() - player.getDefaultEyeHeight() : player.getEyeHeight();
		Vec3 lookVec = player.getLookVec();
		Vec3 origin = Vec3.createVectorHelper(player.posX, player.posY + eyeHeight, player.posZ);
		Vec3 direction = origin.addVector(lookVec.xCoord * reachDistance, lookVec.yCoord * reachDistance, lookVec.zCoord * reachDistance);

		return doRayTrace(world, x, y, z, origin, direction);
	}

	private RaytraceResult doRayTrace(World world, int x, int y, int z, Vec3 origin, Vec3 direction) {
		Pipe<?> pipe = getPipe(world, x, y, z);

		if (!isValid(pipe)) {
			return null;
		}

		TileGenericPipe tileG = pipe.container;

		if (tileG == null) {
			return null;
		}

		/**
		 * pipe hits along x, y, and z axis, gate (all 6 sides) [and
		 * wires+facades]
		 */
		MovingObjectPosition[] hits = new MovingObjectPosition[31];
		AxisAlignedBB[] boxes = new AxisAlignedBB[31];
		ForgeDirection[] sideHit = new ForgeDirection[31];
		Arrays.fill(sideHit, ForgeDirection.UNKNOWN);

		// pipe

		for (ForgeDirection side : DIR_VALUES) {
			if (side == ForgeDirection.UNKNOWN || tileG.isPipeConnected(side)) {
				AxisAlignedBB bb = getPipeBoundingBox(side);
				setBlockBounds(bb);
				boxes[side.ordinal()] = bb;
				hits[side.ordinal()] = super.collisionRayTrace(world, x, y, z, origin, direction);
				sideHit[side.ordinal()] = side;
			}
		}

		// pluggables

		for (ForgeDirection side : ForgeDirection.VALID_DIRECTIONS) {
			if (tileG.getPipePluggable(side) != null) {
				AxisAlignedBB bb = tileG.getPipePluggable(side).getBoundingBox(side);
				setBlockBounds(bb);
				boxes[7 + side.ordinal()] = bb;
				hits[7 + side.ordinal()] = super.collisionRayTrace(world, x, y, z, origin, direction);
				sideHit[7 + side.ordinal()] = side;
			}
		}

		// TODO: check wires

		// get closest hit

		double minLengthSquared = Double.POSITIVE_INFINITY;
		int minIndex = -1;

		for (int i = 0; i < hits.length; i++) {
			MovingObjectPosition hit = hits[i];
			if (hit == null) {
				continue;
			}

			double lengthSquared = hit.hitVec.squareDistanceTo(origin);

			if (lengthSquared < minLengthSquared) {
				minLengthSquared = lengthSquared;
				minIndex = i;
			}
		}

		// reset bounds

		setBlockBounds(0, 0, 0, 1, 1, 1);

		if (minIndex == -1) {
			return null;
		} else {
			Part hitPart;

			if (minIndex < 7) {
				hitPart = Part.Pipe;
			} else {
				hitPart = Part.Pluggable;
			}

			return new RaytraceResult(hitPart, hits[minIndex], boxes[minIndex], sideHit[minIndex]);
		}
	}

	private void setBlockBounds(AxisAlignedBB bb) {
		setBlockBounds((float) bb.minX, (float) bb.minY, (float) bb.minZ, (float) bb.maxX, (float) bb.maxY, (float) bb.maxZ);
	}

	private AxisAlignedBB getPipeBoundingBox(ForgeDirection side) {
		float min = CoreConstants.PIPE_MIN_POS;
		float max = CoreConstants.PIPE_MAX_POS;

		if (side == ForgeDirection.UNKNOWN) {
			return AxisAlignedBB.getBoundingBox(min, min, min, max, max, max);
		}

		float[][] bounds = new float[3][2];
		// X START - END
		bounds[0][0] = min;
		bounds[0][1] = max;
		// Y START - END
		bounds[1][0] = 0;
		bounds[1][1] = min;
		// Z START - END
		bounds[2][0] = min;
		bounds[2][1] = max;

		MatrixTranformations.transform(bounds, side);
		return AxisAlignedBB.getBoundingBox(bounds[0][0], bounds[1][0], bounds[2][0], bounds[0][1], bounds[1][1], bounds[2][1]);
	}

	public static void removePipe(Pipe<?> pipe) {
		if (!isValid(pipe)) {
			return;
		}

		World world = pipe.container.getWorldObj();

		if (world == null) {
			return;
		}

		int x = pipe.container.xCoord;
		int y = pipe.container.yCoord;
		int z = pipe.container.zCoord;

		if (lastRemovedDate != world.getTotalWorldTime()) {
			lastRemovedDate = world.getTotalWorldTime();
			pipeRemoved.clear();
		}

		pipeRemoved.put(new BlockIndex(x, y, z), pipe);
		for (ForgeDirection dir : ForgeDirection.VALID_DIRECTIONS) {
			TileEntity tile = world.getTileEntity(x + dir.offsetX, y + dir.offsetY, z + dir.offsetZ);
			if (tile instanceof IPipeTile) {
				Pipe<?> tpipe = (Pipe<?>) ((IPipeTile) tile).getPipe();
				tpipe.scheduleWireUpdate();
			}
		}
		world.removeTileEntity(x, y, z);
	}

	@Override
	public void breakBlock(World world, int x, int y, int z, Block block, int par6) {
		Utils.preDestroyBlock(world, x, y, z);
		removePipe(getPipe(world, x, y, z));
		super.breakBlock(world, x, y, z, block, par6);
	}

	@Override
	public ArrayList<ItemStack> getDrops(World world, int x, int y, int z, int metadata, int fortune) {
		if (world.isRemote) {
			return null;
		}

		ArrayList<ItemStack> list = new ArrayList<ItemStack>();
		Pipe<?> pipe = getPipe(world, x, y, z);

		if (pipe == null) {
			pipe = pipeRemoved.get(new BlockIndex(x, y, z));
		}

		if (pipe != null) {
			if (pipe.item != null) {
				list.add(new ItemStack(pipe.item, 1, pipe.container.getItemMetadata()));
				list.addAll(pipe.computeItemDrop());
				list.addAll(pipe.getDroppedItems());
			}
		}
		return list;
	}

	@Override
	public TileEntity createNewTileEntity(World world, int metadata) {
		return new TileGenericPipe();
	}

	@Override
	public void dropBlockAsItemWithChance(World world, int i, int j, int k, int l, float f, int dmg) {
		if (world.isRemote) {
			return;
		}
		Pipe<?> pipe = getPipe(world, i, j, k);

		if (pipe == null) {
			pipe = pipeRemoved.get(new BlockIndex(i, j, k));
		}

		if (pipe != null) {
			Item k1 = pipe.item;

			if (k1 != null) {
				pipe.dropContents();
				for (ItemStack is : pipe.computeItemDrop()) {
					dropBlockAsItem(world, i, j, k, is);
				}
				dropBlockAsItem(world, i, j, k, new ItemStack(k1, 1, pipe.container.getItemMetadata()));
			}
		}
	}

	@Override
	public Item getItemDropped(int meta, Random rand, int dmg) {
		// Returns null to be safe - the id does not depend on the meta
		return null;
	}

	@Override
	public ItemStack getPickBlock(MovingObjectPosition target, World world, int x, int y, int z) {
		// HACK: WAILA compatibility
		EntityPlayer clientPlayer = CoreProxy.proxy.getClientPlayer();
		if (clientPlayer != null) {
			return getPickBlock(target, world, x, y, z, clientPlayer);
		} else {
			return new ItemStack(getPipe(world, x, y, z).item, 1, getPipe(world, x, y, z).container.getItemMetadata());
		}
	}

	@Override
	public ItemStack getPickBlock(MovingObjectPosition target, World world, int x, int y, int z, EntityPlayer player) {
		RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, player);

		if (rayTraceResult != null && rayTraceResult.boundingBox != null) {
			switch (rayTraceResult.hitPart) {
				case Pluggable: {
					Pipe<?> pipe = getPipe(world, x, y, z);
					PipePluggable pluggable = pipe.container.getPipePluggable(rayTraceResult.sideHit);
					ItemStack[] drops = pluggable.getDropItems(pipe.container);
					if (drops != null && drops.length > 0) {
						return drops[0];
					}
				}
				case Pipe:
					return new ItemStack(getPipe(world, x, y, z).item, 1, getPipe(world, x, y, z).container.getItemMetadata());
			}
		}
		return null;
	}

	/* Wrappers ************************************************************ */
	@Override
	public void onNeighborBlockChange(World world, int x, int y, int z, Block block) {
		super.onNeighborBlockChange(world, x, y, z, block);

		Pipe<?> pipe = getPipe(world, x, y, z);

		if (isValid(pipe)) {
			pipe.container.scheduleNeighborChange();
			pipe.container.redstoneInput = 0;

			for (int i = 0; i < ForgeDirection.VALID_DIRECTIONS.length; i++) {
				ForgeDirection d = ForgeDirection.getOrientation(i);
				pipe.container.redstoneInputSide[i] = getRedstoneInputToPipe(world, x, y, z, d);
				if (pipe.container.redstoneInput < pipe.container.redstoneInputSide[i]) {
					pipe.container.redstoneInput = pipe.container.redstoneInputSide[i];
				}
			}
		}
	}

	@Override
	public void onNeighborChange(IBlockAccess world, int x, int y, int z, int nx, int ny, int nz) {
		int ox = nx - x;
		int oy = ny - y;
		int oz = nz - z;

		TileEntity tile = world.getTileEntity(x, y, z);

		if (tile instanceof TileGenericPipe) {
			for (ForgeDirection d : ForgeDirection.VALID_DIRECTIONS) {
				if (d.offsetX == ox && d.offsetY == oy && d.offsetZ == oz) {
					((TileGenericPipe) tile).scheduleNeighborChange(d);
					return;
				}
			}
		}
	}

	private int getRedstoneInputToPipe(World world, int x, int y, int z,
									   ForgeDirection d) {
		int i = d.ordinal();
		int input = world.isBlockProvidingPowerTo(x + d.offsetX, y + d.offsetY, z + d.offsetZ, i);
		if (input == 0) {
			input = world.getIndirectPowerLevelTo(x + d.offsetX, y + d.offsetY, z + d.offsetZ, i);
			if (input == 0 && d != ForgeDirection.DOWN) {
				Block block = world.getBlock(x + d.offsetX, y + d.offsetY, z + d.offsetZ);
				if (block instanceof BlockRedstoneWire) {
					return world.getBlockMetadata(x + d.offsetX, y + d.offsetY, z + d.offsetZ);
				}
			}
		}
		return input;
	}

	@Override
	public int onBlockPlaced(World world, int x, int y, int z, int side, float par6, float par7, float par8, int meta) {
		super.onBlockPlaced(world, x, y, z, side, par6, par7, par8, meta);
		Pipe<?> pipe = getPipe(world, x, y, z);

		if (isValid(pipe)) {
			pipe.onBlockPlaced();
		}

		return meta;
	}

	@Override
	public void onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase placer, ItemStack stack) {
		super.onBlockPlacedBy(world, x, y, z, placer, stack);
		Pipe<?> pipe = getPipe(world, x, y, z);

		if (isValid(pipe)) {
			pipe.onBlockPlacedBy(placer);
		}
	}

	@Override
	public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer player, int side, float xOffset, float yOffset, float zOffset) {
		if (super.onBlockActivated(world, x, y, z, player, side, xOffset, yOffset, zOffset)) {
			return true;
		}

		world.notifyBlocksOfNeighborChange(x, y, z, BuildCraftTransport.genericPipeBlock);

		Pipe<?> pipe = getPipe(world, x, y, z);

		if (isValid(pipe)) {
			ItemStack currentItem = player.getCurrentEquippedItem();

			// Right click while sneaking with empty hand to strip equipment
			// from the pipe.
			if (player.isSneaking() && currentItem == null) {
				if (stripEquipment(world, x, y, z, player, pipe, ForgeDirection.getOrientation(side))) {
					return true;
				}
			} else if (currentItem == null) {
				// Fall through the end of the test
			} else if (currentItem.getItem() == Items.sign) {
				// Sign will be placed anyway, so lets show the sign gui
				return false;
			} else if (currentItem.getItem() instanceof ItemPipe) {
				return false;
			} else if (currentItem.getItem() instanceof ItemGateCopier) {
				return false;
			} else if (currentItem.getItem() instanceof IToolWrench) {
				// Only check the instance at this point. Call the IToolWrench
				// interface callbacks for the individual pipe/logic calls
				RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, player);
				if (rayTraceResult != null) {
					ForgeDirection hitSide = rayTraceResult.hitPart == Part.Pipe ? rayTraceResult.sideHit : ForgeDirection.UNKNOWN;
					return pipe.blockActivated(player, hitSide);
				} else {
					return pipe.blockActivated(player, ForgeDirection.UNKNOWN);
				}
			} else if (currentItem.getItem() instanceof IMapLocation) {
				// We want to be able to record pipe locations
				return false;
			} else if (PipeWire.RED.isPipeWire(currentItem)) {
				if (addOrStripWire(player, pipe, PipeWire.RED)) {
					return true;
				}
			} else if (PipeWire.BLUE.isPipeWire(currentItem)) {
				if (addOrStripWire(player, pipe, PipeWire.BLUE)) {
					return true;
				}
			} else if (PipeWire.GREEN.isPipeWire(currentItem)) {
				if (addOrStripWire(player, pipe, PipeWire.GREEN)) {
					return true;
				}
			} else if (PipeWire.YELLOW.isPipeWire(currentItem)) {
				if (addOrStripWire(player, pipe, PipeWire.YELLOW)) {
					return true;
				}
			} else if (currentItem.getItem() == Items.water_bucket) {
				if (!world.isRemote) {
					pipe.container.setPipeColor(-1);
				}
				return true;
			} else if (currentItem.getItem() instanceof IPipePluggableItem) {
				if (addOrStripPipePluggable(world, x, y, z, currentItem, player, ForgeDirection.getOrientation(side), pipe)) {
					return true;
				}
			}

			Gate clickedGate = null;

			RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, player);

			if (rayTraceResult != null && rayTraceResult.hitPart == Part.Pluggable
					&& pipe.container.getPipePluggable(rayTraceResult.sideHit) instanceof GatePluggable) {
				clickedGate = pipe.gates[rayTraceResult.sideHit.ordinal()];
			}

			if (clickedGate != null) {
				clickedGate.openGui(player);
				return true;
			} else {
				if (pipe.blockActivated(player, ForgeDirection.getOrientation(side))) {
					return true;
				}

				if (rayTraceResult != null) {
					ForgeDirection hitSide = rayTraceResult.hitPart == Part.Pipe ? rayTraceResult.sideHit : ForgeDirection.UNKNOWN;
					return pipe.blockActivated(player, hitSide);
				}
			}
		}

		return false;
	}

	private boolean addOrStripPipePluggable(World world, int x, int y, int z, ItemStack stack, EntityPlayer player, ForgeDirection side, Pipe<?> pipe) {
		RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, player);

		ForgeDirection placementSide = rayTraceResult != null && rayTraceResult.sideHit != ForgeDirection.UNKNOWN ? rayTraceResult.sideHit : side;

		IPipePluggableItem pluggableItem = (IPipePluggableItem) stack.getItem();
		PipePluggable pluggable = pluggableItem.createPipePluggable(pipe, placementSide, stack);

		if (pluggable == null) {
			return false;
		}

		if (player.isSneaking()) {
			if (pipe.container.hasPipePluggable(side) && rayTraceResult != null && rayTraceResult.hitPart == Part.Pluggable
					&& pluggable.getClass().isInstance(pipe.container.getPipePluggable(side))) {
				return pipe.container.setPluggable(side, null, player);
			}
		}

		if (rayTraceResult != null && rayTraceResult.hitPart == Part.Pipe) {
			if (!pipe.container.hasPipePluggable(placementSide)) {
				if (pipe.container.setPluggable(placementSide, pluggable, player)) {
					if (!player.capabilities.isCreativeMode) {
						stack.stackSize--;
					}

					return true;
				} else {
					return false;
				}
			}
		}
		return false;
	}

	private boolean addOrStripWire(EntityPlayer player, Pipe<?> pipe, PipeWire color) {
		if (addWire(pipe, color)) {
			if (!player.capabilities.isCreativeMode) {
				player.getCurrentEquippedItem().splitStack(1);
			}
			return true;
		}
		return player.isSneaking() && stripWire(pipe, color, player);
	}

	private boolean addWire(Pipe<?> pipe, PipeWire color) {
		if (!pipe.wireSet[color.ordinal()]) {
			pipe.wireSet[color.ordinal()] = true;
			pipe.wireSignalStrength[color.ordinal()] = 0;

			pipe.updateSignalState();

			pipe.container.scheduleRenderUpdate();
			return true;
		}
		return false;
	}

	private boolean stripWire(Pipe<?> pipe, PipeWire color, EntityPlayer player) {
		if (pipe.wireSet[color.ordinal()]) {
			if (!pipe.container.getWorldObj().isRemote) {
				dropWire(color, pipe, player);
			}

			pipe.wireSignalStrength[color.ordinal()] = 0;
			pipe.wireSet[color.ordinal()] = false;

			pipe.propagateSignalState(color, 0);

			if (isFullyDefined(pipe)) {
				pipe.resolveActions();
			}

			pipe.container.scheduleRenderUpdate();

			return true;
		}
		return false;
	}

	private boolean stripEquipment(World world, int x, int y, int z, EntityPlayer player, Pipe<?> pipe, ForgeDirection side) {
		if (!world.isRemote) {
			// Try to strip pluggables first
			ForgeDirection nSide = side;

			RaytraceResult rayTraceResult = doRayTrace(world, x, y, z, player);
			if (rayTraceResult != null && rayTraceResult.hitPart != Part.Pipe) {
				nSide = rayTraceResult.sideHit;
			}

			if (pipe.container.hasPipePluggable(nSide)) {
				return pipe.container.setPluggable(nSide, null, player);
			}

			// Try to strip wires second, starting with yellow.
			for (PipeWire color : PipeWire.values()) {
				if (stripWire(pipe, color, player)) {
					return true;
				}
			}
		}

		return false;
	}

	/**
	 * Drops a pipe wire item of the passed color.
	 *
	 * @param pipeWire
	 */
	private void dropWire(PipeWire pipeWire, Pipe<?> pipe, EntityPlayer player) {
		Utils.dropTryIntoPlayerInventory(pipe.container.getWorld(), pipe.container.x(),
				pipe.container.y(), pipe.container.z(), pipeWire.getStack(), player);
	}


	@Override
	public void onEntityCollidedWithBlock(World world, int i, int j, int k, Entity entity) {
		super.onEntityCollidedWithBlock(world, i, j, k, entity);

		Pipe<?> pipe = getPipe(world, i, j, k);

		if (isValid(pipe)) {
			pipe.onEntityCollidedWithBlock(entity);
		}
	}

	@Override
	public boolean canConnectRedstone(IBlockAccess world, int x, int y, int z, int side) {
		Pipe<?> pipe = getPipe(world, x, y, z);

		if (isValid(pipe)) {
			return pipe.canConnectRedstone();
		} else {
			return false;
		}
	}

	@Override
	public int isProvidingStrongPower(IBlockAccess iblockaccess, int x, int y, int z, int l) {
		Pipe<?> pipe = getPipe(iblockaccess, x, y, z);

		if (isValid(pipe)) {
			return pipe.isPoweringTo(l);
		} else {
			return 0;
		}
	}

	@Override
	public boolean canProvidePower() {
		return true;
	}

	@Override
	public int isProvidingWeakPower(IBlockAccess world, int i, int j, int k, int l) {
		Pipe<?> pipe = getPipe(world, i, j, k);

		if (isValid(pipe)) {
			return pipe.isIndirectlyPoweringTo(l);
		} else {
			return 0;
		}
	}

	@SuppressWarnings({"all"})
	@Override
	public void randomDisplayTick(World world, int i, int j, int k, Random random) {
		Pipe pipe = getPipe(world, i, j, k);

		if (isValid(pipe)) {
			pipe.randomDisplayTick(random);
		}
	}

	/* Registration ******************************************************** */
	public static ItemPipe registerPipe(Class<? extends Pipe<?>> clas, BCCreativeTab creativeTab) {
		ItemPipe item = new ItemPipe(creativeTab);
		item.setUnlocalizedName("buildcraftPipe." + clas.getSimpleName().toLowerCase(Locale.ENGLISH));
		GameRegistry.registerItem(item, item.getUnlocalizedName());

		pipes.put(item, clas);

		Pipe<?> dummyPipe = createPipe(item);
		if (dummyPipe != null) {
			item.setPipeIconIndex(dummyPipe.getIconIndexForItem());
			TransportProxy.proxy.setIconProviderFromPipe(item, dummyPipe);
		}

		return item;
	}

	public static Pipe<?> createPipe(Item key) {

		try {
			Class<? extends Pipe> pipe = pipes.get(key);
			if (pipe != null) {
				return pipe.getConstructor(Item.class).newInstance(key);
			} else {
				BCLog.logger.warn("Detected pipe with unknown key (" + key + "). Did you remove a buildcraft addon?");
			}

		} catch (Throwable t) {
			t.printStackTrace();
			BCLog.logger.warn("Failed to create pipe with (" + key + "). No valid constructor found. Possibly a item ID conflit.");
		}

		return null;
	}

	public static boolean placePipe(Pipe<?> pipe, World world, int i, int j, int k, Block block, int meta, EntityPlayer player, ForgeDirection side) {
		if (world.isRemote) {
			return true;
		}

		if (player != null) {
			Block placedAgainst = world.getBlock(i + side.getOpposite().offsetX, j + side.getOpposite().offsetY, k + side.getOpposite().offsetZ);
			BlockEvent.PlaceEvent placeEvent = new BlockEvent.PlaceEvent(
					new BlockSnapshot(world, i, j, k, block, meta), placedAgainst, player
			);
			MinecraftForge.EVENT_BUS.post(placeEvent);
			if (placeEvent.isCanceled()) {
				return false;
			}
		}

		boolean placed = world.setBlock(i, j, k, block, meta, 3);

		if (placed) {
			TileEntity tile = world.getTileEntity(i, j, k);
			if (tile instanceof TileGenericPipe) {
				TileGenericPipe tilePipe = (TileGenericPipe) tile;
				tilePipe.initialize(pipe);
				tilePipe.sendUpdateToClient();
			}
		}

		return placed;
	}

	public static Pipe<?> getPipe(IBlockAccess blockAccess, int i, int j, int k) {
		TileEntity tile = blockAccess.getTileEntity(i, j, k);

		if (tile instanceof IPipeTile && !tile.isInvalid()) {
			IPipe pipe = ((IPipeTile) tile).getPipe();
			if (pipe instanceof Pipe<?>) {
				return (Pipe<?>) pipe;
			}
		}
		return null;
	}

	public static boolean isFullyDefined(Pipe<?> pipe) {
		return pipe != null && pipe.transport != null && pipe.container != null;
	}

	public static boolean isValid(Pipe<?> pipe) {
		return isFullyDefined(pipe);
	}

	@Override
	@SideOnly(Side.CLIENT)
	public void registerBlockIcons(IIconRegister iconRegister) {

	}

	/**
	 * Spawn a digging particle effect in the world, this is a wrapper around
	 * EffectRenderer.addBlockHitEffects to allow the block more control over
	 * the particles. Useful when you have entirely different texture sheets for
	 * different sides/locations in the world.
	 *
	 * @param worldObj The current world
	 * @param target The target the player is looking at {x/y/z/side/sub}
	 * @param effectRenderer A reference to the current effect renderer.
	 * @return True to prevent vanilla digging particles form spawning.
	 */
	@SideOnly(Side.CLIENT)
	@Override
	public boolean addHitEffects(World worldObj, MovingObjectPosition target, EffectRenderer effectRenderer) {
		int x = target.blockX;
		int y = target.blockY;
		int z = target.blockZ;

		Pipe<?> pipe = getPipe(worldObj, x, y, z);
		if (pipe == null) {
			return false;
		}

		IIcon icon = pipe.getIconProvider().getIcon(pipe.getIconIndexForItem());

		int sideHit = target.sideHit;

		Block block = BuildCraftTransport.genericPipeBlock;
		float b = 0.1F;
		double px = x + rand.nextDouble() * (block.getBlockBoundsMaxX() - block.getBlockBoundsMinX() - (b * 2.0F)) + b + block.getBlockBoundsMinX();
		double py = y + rand.nextDouble() * (block.getBlockBoundsMaxY() - block.getBlockBoundsMinY() - (b * 2.0F)) + b + block.getBlockBoundsMinY();
		double pz = z + rand.nextDouble() * (block.getBlockBoundsMaxZ() - block.getBlockBoundsMinZ() - (b * 2.0F)) + b + block.getBlockBoundsMinZ();

		if (sideHit == 0) {
			py = y + block.getBlockBoundsMinY() - b;
		}

		if (sideHit == 1) {
			py = y + block.getBlockBoundsMaxY() + b;
		}

		if (sideHit == 2) {
			pz = z + block.getBlockBoundsMinZ() - b;
		}

		if (sideHit == 3) {
			pz = z + block.getBlockBoundsMaxZ() + b;
		}

		if (sideHit == 4) {
			px = x + block.getBlockBoundsMinX() - b;
		}

		if (sideHit == 5) {
			px = x + block.getBlockBoundsMaxX() + b;
		}

		EntityDiggingFX fx = new EntityDiggingFX(worldObj, px, py, pz, 0.0D, 0.0D, 0.0D, block, sideHit, worldObj.getBlockMetadata(x, y, z));
		fx.setParticleIcon(icon);
		effectRenderer.addEffect(fx.applyColourMultiplier(x, y, z).multiplyVelocity(0.2F).multipleParticleScaleBy(0.6F));
		return true;
	}

	/**
	 * Spawn particles for when the block is destroyed. Due to the nature of how
	 * this is invoked, the x/y/z locations are not always guaranteed to host
	 * your block. So be sure to do proper sanity checks before assuming that
	 * the location is this block.
	 *
	 * @param worldObj The current world
	 * @param x X position to spawn the particle
	 * @param y Y position to spawn the particle
	 * @param z Z position to spawn the particle
	 * @param meta The metadata for the block before it was destroyed.
	 * @param effectRenderer A reference to the current effect renderer.
	 * @return True to prevent vanilla break particles from spawning.
	 */
	@SideOnly(Side.CLIENT)
	@Override
	public boolean addDestroyEffects(World worldObj, int x, int y, int z, int meta, EffectRenderer effectRenderer) {
		Pipe<?> pipe = getPipe(worldObj, x, y, z);
		if (pipe == null) {
			return false;
		}

		IIcon icon = pipe.getIconProvider().getIcon(pipe.getIconIndexForItem());

		byte its = 4;
		for (int i = 0; i < its; ++i) {
			for (int j = 0; j < its; ++j) {
				for (int k = 0; k < its; ++k) {
					double px = x + (i + 0.5D) / its;
					double py = y + (j + 0.5D) / its;
					double pz = z + (k + 0.5D) / its;
					int random = rand.nextInt(6);
					EntityDiggingFX fx = new EntityDiggingFX(worldObj, px, py, pz, px - x - 0.5D, py - y - 0.5D, pz - z - 0.5D, BuildCraftTransport.genericPipeBlock, random, meta);
					fx.setParticleIcon(icon);
					effectRenderer.addEffect(fx.applyColourMultiplier(x, y, z));
				}
			}
		}
		return true;
	}

	@Override
	public boolean recolourBlock(World world, int x, int y, int z, ForgeDirection side, int colour) {
		TileGenericPipe pipeTile = (TileGenericPipe) world.getTileEntity(x, y, z);
		if (!pipeTile.hasBlockingPluggable(side)) {
			return pipeTile.setPipeColor(colour);
		}

		return false;
	}

	@Override
	public boolean removeColorFromBlock(World world, int x, int y, int z, ForgeDirection side) {
		TileGenericPipe pipeTile = (TileGenericPipe) world.getTileEntity(x, y, z);
		if (!pipeTile.hasBlockingPluggable(side)) {
			return pipeTile.setPipeColor(-1);
		}

		return false;
	}

	@Override
	public IIcon getIcon(IBlockAccess world, int i, int j, int k, int side) {
		TileEntity tile = world.getTileEntity(i, j, k);
		if (tile instanceof TileGenericPipe) {
			Pipe<?> pipe = (Pipe<?>) ((TileGenericPipe) tile).getPipe();
			return pipe.getIconProvider().getIcon(pipe.getIconIndexForItem());
		}

		return PipeIconProvider.TYPE.PipeItemsStone.getIcon();
	}

	@Override
	public IIcon getIcon(int side, int meta) {
		return PipeIconProvider.TYPE.PipeItemsStone.getIcon();
	}
}