Merge branch 'power' into builder

common/buildcraft/api/power/IPowerEmitter.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) SpaceToad, 2011-2012
+ * http://www.mod-buildcraft.com
+ * 
+ * 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.api.power;
+
+import net.minecraftforge.common.ForgeDirection;
+
+/**
+ * Essentially only used for Wooden Power Pipe connection rules.
+ *
+ * This Tile Entity interface allows you to indicate that a block can emit power
+ * from a specific side.
+ *
+ * @author CovertJaguar <http://www.railcraft.info/>
+ */
+public interface IPowerEmitter {
+
+	public boolean canEmitPowerFrom(ForgeDirection side);
+}

common/buildcraft/api/power/IPowerReceptor.java

@@ -11,11 +11,37 @@ import buildcraft.api.power.PowerHandler.PowerReceiver;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ForgeDirection;
 
+/**
+ * This interface should be implemented by any Tile Entity that wishes to be
+ * able to receive power.
+ *
+ * @author CovertJaguar <http://www.railcraft.info/>
+ */
 public interface IPowerReceptor {
 
+	/**
+	 * Get the PowerReceiver for this side of the block. You can return the same
+	 * PowerReceiver for all sides or one for each side.
+	 *
+	 * You should NOT return null to this method unless you mean to NEVER
+	 * receive power from that side. Returning null, after previous returning a
+	 * PowerReceiver, will most likely cause pipe connections to derp out and
+	 * engines to eventually explode.
+	 *
+	 * @param side
+	 * @return
+	 */
 	public PowerReceiver getPowerReceiver(ForgeDirection side);
 
+	/**
+	 * Call back from the PowerHandler that is called when the stored power
+	 * exceeds the activation power.
+	 *
+	 * It can be triggered by update() calls or power modification calls.
+	 *
+	 * @param workProvider
+	 */
 	public void doWork(PowerHandler workProvider);
-	
+
 	public World getWorldObj();
 }

common/buildcraft/api/power/PowerHandler.java

@@ -80,7 +80,7 @@ public final class PowerHandler {
 	private final SafeTimeTracker doWorkTracker = new SafeTimeTracker();
 	private final SafeTimeTracker sourcesTracker = new SafeTimeTracker();
 	private final SafeTimeTracker perditionTracker = new SafeTimeTracker();
-	public final int[] powerSources = {0, 0, 0, 0, 0, 0};
+	public final int[] powerSources = new int[6];
 	public final IPowerReceptor receptor;
 	private PerditionCalculator perdition;
 	private final PowerReceiver receiver;

common/buildcraft/core/EntityBlock.java

@@ -1,12 +1,10 @@
 /**
- * Copyright (c) SpaceToad, 2011
+ * Copyright (c) SpaceToad, 2011 http://www.mod-buildcraft.com
- * http://www.mod-buildcraft.com
  *
- * BuildCraft is distributed under the terms of the Minecraft Mod Public
+ * BuildCraft is distributed under the terms of the Minecraft Mod Public License
- * License 1.0, or MMPL. Please check the contents of the license located in
+ * 1.0, or MMPL. Please check the contents of the license located in
  * http://www.mod-buildcraft.com/MMPL-1.0.txt
  */
-
 package buildcraft.core;
 
 import net.minecraft.entity.Entity;
@@ -21,12 +19,11 @@ public class EntityBlock extends Entity {
 	@SideOnly(Side.CLIENT)
 	public Icon texture;
 	public float shadowSize = 0;
-
 	public float rotationX = 0;
 	public float rotationY = 0;
 	public float rotationZ = 0;
-
 	public double iSize, jSize, kSize;
+	private int brightness = -1;
 
 	public EntityBlock(World world) {
 		super(world);
@@ -68,28 +65,31 @@ public class EntityBlock extends Entity {
 		setPosition(posX + d, posY + d1, posZ + d2);
 	}
 
+	public void setBrightness(int brightness) {
+		this.brightness = brightness;
+	}
+
 	@Override
 	protected void entityInit() {
 		// TODO Auto-generated method stub
-
 	}
 
 	@Override
-	protected void readEntityFromNBT(NBTTagCompound nbttagcompound) {
+	protected void readEntityFromNBT(NBTTagCompound data) {
-		iSize = nbttagcompound.getDouble("iSize");
+		iSize = data.getDouble("iSize");
-		jSize = nbttagcompound.getDouble("jSize");
+		jSize = data.getDouble("jSize");
-		kSize = nbttagcompound.getDouble("kSize");
+		kSize = data.getDouble("kSize");
 	}
 
 	@Override
-	protected void writeEntityToNBT(NBTTagCompound nbttagcompound) {
+	protected void writeEntityToNBT(NBTTagCompound data) {
-		nbttagcompound.setDouble("iSize", iSize);
+		data.setDouble("iSize", iSize);
-		nbttagcompound.setDouble("jSize", jSize);
+		data.setDouble("jSize", jSize);
-		nbttagcompound.setDouble("kSize", kSize);
+		data.setDouble("kSize", kSize);
 	}
 
 	@Override
 	public int getBrightnessForRender(float par1) {
-		return 210;
+		return brightness > 0 ? brightness : super.getBrightnessForRender(par1);
 	}
 }

common/buildcraft/core/utils/Utils.java

@@ -330,6 +330,7 @@ public class Utils {
 		}
 
 		EntityBlock block = CoreProxy.proxy.newEntityBlock(world, i, j, k, iSize, jSize, kSize, kind);
+		block.setBrightness(210);
 
 		world.spawnEntityInWorld(block);
 

common/buildcraft/energy/TileEngine.java

@@ -19,6 +19,7 @@ import buildcraft.BuildCraftEnergy;
 import buildcraft.api.core.Position;
 import buildcraft.api.gates.IOverrideDefaultTriggers;
 import buildcraft.api.gates.ITrigger;
+import buildcraft.api.power.IPowerEmitter;
 import buildcraft.api.power.IPowerReceptor;
 import buildcraft.api.power.PowerHandler;
 import buildcraft.api.power.PowerHandler.PowerReceiver;
@@ -35,7 +36,7 @@ import net.minecraft.inventory.ICrafting;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagFloat;
 
-public abstract class TileEngine extends TileBuildCraft implements IPowerReceptor, IInventory, IOverrideDefaultTriggers, IPipeConnection {
+public abstract class TileEngine extends TileBuildCraft implements IPowerReceptor, IPowerEmitter, IInventory, IOverrideDefaultTriggers, IPipeConnection {
 
 	public enum EnergyStage {
 
@@ -495,6 +496,11 @@ public abstract class TileEngine extends TileBuildCraft implements IPowerRecepto
 		return with != orientation;
 	}
 
+	@Override
+	public boolean canEmitPowerFrom(ForgeDirection side) {
+		return side == orientation;
+	}
+
 	public void checkRedstonePower() {
 		isRedstonePowered = worldObj.isBlockIndirectlyGettingPowered(xCoord, yCoord, zCoord);
 	}

common/buildcraft/transport/GuiHandler.java

@@ -40,7 +40,7 @@ public class GuiHandler implements IGuiHandler {
 
 		switch (ID) {
 		case GuiIds.PIPE_DIAMOND:
-			return new ContainerDiamondPipe(player.inventory, (PipeLogicDiamond) pipe.pipe.logic);
+			return new ContainerDiamondPipe(player.inventory, ((PipeLogicDiamond) pipe.pipe.logic).getFilters());
 			
 		case GuiIds.PIPE_EMERALD_ITEM:
 			return new ContainerEmeraldPipe(player.inventory, (IInventory) pipe.pipe);

common/buildcraft/transport/PipeTransportPower.java

@@ -13,6 +13,7 @@ import net.minecraftforge.common.ForgeDirection;
 import buildcraft.BuildCraftCore;
 import buildcraft.api.core.SafeTimeTracker;
 import buildcraft.api.gates.ITrigger;
+import buildcraft.api.power.IPowerEmitter;
 import buildcraft.api.power.IPowerReceptor;
 import buildcraft.api.power.PowerHandler.PowerReceiver;
 import buildcraft.api.power.PowerHandler.Type;
@@ -76,9 +77,13 @@ public class PipeTransportPower extends PipeTransport {
 		if (tile instanceof IPowerReceptor) {
 			IPowerReceptor receptor = (IPowerReceptor) tile;
 			PowerReceiver receiver = receptor.getPowerReceiver(side.getOpposite());
-			if (receiver == null)
+			if (receiver != null && receiver.getType().canReceiveFromPipes())
-				return false;
+				return true;
-			if (container.pipe instanceof PipePowerWood || receiver.getType().canReceiveFromPipes())
+		}
+
+		if (container.pipe instanceof PipePowerWood && tile instanceof IPowerEmitter) {
+			IPowerEmitter emitter = (IPowerEmitter) tile;
+			if (emitter.canEmitPowerFrom(side.getOpposite()))
 				return true;
 		}
 
@@ -141,7 +146,12 @@ public class PipeTransportPower extends PipeTransport {
 					if (j != i && powerQuery[j] > 0) {
 						float watts = 0.0F;
 
-						if (tiles[j] instanceof TileGenericPipe) {
+						PowerReceiver prov = getReceiverOnSide(ForgeDirection.VALID_DIRECTIONS[j]);
+						if (prov != null && prov.powerRequest() > 0) {
+							watts = (internalPower[i] / totalPowerQuery) * powerQuery[j];
+							watts = prov.receiveEnergy(Type.PIPE, watts, ForgeDirection.VALID_DIRECTIONS[j].getOpposite());
+							internalPower[i] -= watts;
+						} else if (tiles[j] instanceof TileGenericPipe) {
 							watts = (internalPower[i] / totalPowerQuery) * powerQuery[j];
 							TileGenericPipe nearbyTile = (TileGenericPipe) tiles[j];
 
@@ -149,15 +159,6 @@ public class PipeTransportPower extends PipeTransport {
 
 							watts = nearbyTransport.receiveEnergy(ForgeDirection.VALID_DIRECTIONS[j].getOpposite(), watts);
 							internalPower[i] -= watts;
-						} else if (tiles[j] instanceof IPowerReceptor) {
-							IPowerReceptor pow = (IPowerReceptor) tiles[j];
-							PowerReceiver prov = pow.getPowerReceiver(ForgeDirection.VALID_DIRECTIONS[j].getOpposite());
-
-							if (prov != null && prov.getType().canReceiveFromPipes() && prov.powerRequest() > 0) {
-								watts = (internalPower[i] / totalPowerQuery) * powerQuery[j];
-								watts = prov.receiveEnergy(Type.PIPE, watts, ForgeDirection.VALID_DIRECTIONS[j].getOpposite());
-								internalPower[i] -= watts;
-							}
 						}
 
 						displayPower[j] += watts;
@@ -183,18 +184,15 @@ public class PipeTransportPower extends PipeTransport {
 			overload = OVERLOAD_TICKS;
 		}
 
-		// Compute the tiles requesting energy that are not pipes
+		// Compute the tiles requesting energy that are not power pipes
 
 		for (int i = 0; i < 6; ++i) {
-			if (tiles[i] instanceof IPowerReceptor && !(tiles[i] instanceof TileGenericPipe)) {
+			PowerReceiver prov = getReceiverOnSide(ForgeDirection.VALID_DIRECTIONS[i]);
-				IPowerReceptor receptor = (IPowerReceptor) tiles[i];
+			if (prov != null) {
-				PowerReceiver prov = receptor.getPowerReceiver(ForgeDirection.VALID_DIRECTIONS[i].getOpposite());
+				float request = prov.powerRequest();
-				if (prov != null && prov.getType().canReceiveFromPipes()) {
-					float request = prov.powerRequest();
 
-					if (request > 0) {
+				if (request > 0) {
-						requestEnergy(ForgeDirection.VALID_DIRECTIONS[i], request);
+					requestEnergy(ForgeDirection.VALID_DIRECTIONS[i], request);
-					}
 				}
 			}
 		}
@@ -251,6 +249,19 @@ public class PipeTransportPower extends PipeTransport {
 
 	}
 
+	private PowerReceiver getReceiverOnSide(ForgeDirection side) {
+		TileEntity tile = tiles[side.ordinal()];
+		if (!(tile instanceof IPowerReceptor))
+			return null;
+		IPowerReceptor receptor = (IPowerReceptor) tile;
+		PowerReceiver receiver = receptor.getPowerReceiver(side.getOpposite());
+		if (receiver == null)
+			return null;
+		if (!receiver.getType().canReceiveFromPipes())
+			return null;
+		return receiver;
+	}
+
 	public boolean isOverloaded() {
 		return overload >= OVERLOAD_TICKS;
 	}
@@ -279,6 +290,11 @@ public class PipeTransportPower extends PipeTransport {
 		}
 	}
 
+	/**
+	 * Do NOT ever call this from outside Buildcraft unless you are a pipe mod.
+	 * It is NOT part of the API. All power input MUST go through designated
+	 * input pipes, such as Wooden Power Pipes.
+	 */
 	public float receiveEnergy(ForgeDirection from, float val) {
 		step();
 		if (this.container.pipe instanceof IPipeTransportPowerHook) {

common/buildcraft/transport/gui/GuiDiamondPipe.java

@@ -32,7 +32,7 @@ public class GuiDiamondPipe extends GuiBuildCraft {
 
 	@Override
 	protected void drawGuiContainerForegroundLayer(int par1, int par2) {
-		fontRenderer.drawString(filterInventory.getInvName(), getCenteredOffset(filterInventory.getInvName()), 6, 0x404040);
+		fontRenderer.drawString(filterInventory.getFilters().getInvName(), getCenteredOffset(filterInventory.getFilters().getInvName()), 6, 0x404040);
 		fontRenderer.drawString(StringUtils.localize("gui.inventory"), 8, ySize - 97, 0x404040);
 	}
 

common/buildcraft/transport/gui/GuiEmeraldPipe.java

@@ -32,7 +32,7 @@ public class GuiEmeraldPipe extends GuiBuildCraft {
 
 	@Override
 	protected void drawGuiContainerForegroundLayer(int par1, int par2) {
-		fontRenderer.drawString(filterInventory.getInvName(), getCenteredOffset(filterInventory.getInvName()), 6, 0x404040);
+		fontRenderer.drawString(filterInventory.getFilters().getInvName(), getCenteredOffset(filterInventory.getFilters().getInvName()), 6, 0x404040);
 		fontRenderer.drawString(StringUtils.localize("gui.inventory"), 8, ySize - 93, 0x404040);
 	}
 

common/buildcraft/transport/network/PacketHandlerTransport.java

@@ -322,7 +322,7 @@ public class PacketHandlerTransport implements IPacketHandler {
 		if (!(pipe.pipe.logic instanceof PipeLogicDiamond))
 			return;
 
-		((PipeLogicDiamond) pipe.pipe.logic).setInventorySlotContents(packet.slot, packet.stack);
+		((PipeLogicDiamond) pipe.pipe.logic).getFilters().setInventorySlotContents(packet.slot, packet.stack);
 	}
 	
 	/**
@@ -339,7 +339,7 @@ public class PacketHandlerTransport implements IPacketHandler {
 		if (!(pipe.pipe instanceof PipeItemsEmerald))
 			return;
 
-		((PipeItemsEmerald) pipe.pipe).setInventorySlotContents(packet.slot, packet.stack);
+		((PipeItemsEmerald) pipe.pipe).getFilters().setInventorySlotContents(packet.slot, packet.stack);
 	}
 
 	/**

common/buildcraft/transport/pipes/PipeItemsDiamond.java

@@ -70,7 +70,7 @@ public class PipeItemsDiamond extends Pipe implements IPipeTransportItemsHook, I
 			// no breaks here.
 			PipeLogicDiamond diamondLogic = (PipeLogicDiamond) logic;
 			for (int slot = 0; slot < 9; ++slot) {
-				ItemStack stack = diamondLogic.getStackInSlot(dir.ordinal() * 9 + slot);
+				ItemStack stack = diamondLogic.getFilters().getStackInSlot(dir.ordinal() * 9 + slot);
 
 				if (stack != null) {
 					foundFilter = true;

common/buildcraft/transport/pipes/PipeItemsEmerald.java

@@ -32,9 +32,9 @@ import buildcraft.transport.BlockGenericPipe;
 import buildcraft.transport.PipeIconProvider;
 import buildcraft.transport.PipeTransportItems;
 
-public class PipeItemsEmerald extends PipeItemsWood implements ISpecialInventory, IClientState {
+public class PipeItemsEmerald extends PipeItemsWood implements IClientState {
 
-	private SimpleInventory filters = new SimpleInventory(9, "items", 1);
+	private SimpleInventory filters = new SimpleInventory(9, "Filters", 1);
 	private int currentFilter = 0;
 
 	protected PipeItemsEmerald(int itemID, PipeTransportItems transport) {
@@ -208,92 +208,8 @@ public class PipeItemsEmerald extends PipeItemsWood implements ISpecialInventory
 			readFromNBT((NBTTagCompound) nbt);
 		}
 	}
-
+	
-	/* ISPECIALINVENTORY */
+	public IInventory getFilters(){
-	@Override
+		return filters;
-	public int addItem(ItemStack stack, boolean doAdd, ForgeDirection from) {
-		return 0;
-	}
-
-	@Override
-	public ItemStack[] extractItem(boolean doRemove, ForgeDirection from, int maxItemCount) {
-		return new ItemStack[0];
-	}
-
-	/* IINVENTORY IMPLEMENTATION */
-	@Override
-	public int getSizeInventory() {
-		return filters.getSizeInventory();
-	}
-
-	@Override
-	public ItemStack getStackInSlot(int i) {
-		return filters.getStackInSlot(i);
-	}
-
-	@Override
-	public String getInvName() {
-		return "Filters";
-	}
-
-	@Override
-	public int getInventoryStackLimit() {
-		return filters.getInventoryStackLimit();
-	}
-
-	@Override
-	public ItemStack getStackInSlotOnClosing(int i) {
-		return filters.getStackInSlotOnClosing(i);
-	}
-
-	@Override
-	public void onInventoryChanged() {
-		filters.onInventoryChanged();
-	}
-
-	@Override
-	public boolean isUseableByPlayer(EntityPlayer var1) {
-		return worldObj.getBlockTileEntity(xCoord, yCoord, zCoord) == container;
-	}
-
-	@Override
-	public void openChest() {
-	}
-
-	@Override
-	public void closeChest() {
-	}
-
-	@Override
-	public ItemStack decrStackSize(int i, int j) {
-		ItemStack stack = filters.decrStackSize(i, j);
-
-		if (CoreProxy.proxy.isSimulating(worldObj)) {
-			worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
-		}
-
-		return stack;
-	}
-
-	@Override
-	public void setInventorySlotContents(int i, ItemStack itemstack) {
-
-		filters.setInventorySlotContents(i, itemstack);
-		if (CoreProxy.proxy.isSimulating(worldObj)) {
-			worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
-		}
-
-	}
-
-	@Override
-	public boolean isInvNameLocalized() {
-		// TODO Auto-generated method stub
-		return false;
-	}
-
-	@Override
-	public boolean isStackValidForSlot(int i, ItemStack itemstack) {
-		// TODO Auto-generated method stub
-		return false;
 	}
 }

common/buildcraft/transport/pipes/PipeLogicDiamond.java

@@ -1,29 +1,25 @@
 /**
- * Copyright (c) SpaceToad, 2011
+ * Copyright (c) SpaceToad, 2011 http://www.mod-buildcraft.com
- * http://www.mod-buildcraft.com
  *
- * BuildCraft is distributed under the terms of the Minecraft Mod Public
+ * BuildCraft is distributed under the terms of the Minecraft Mod Public License
- * License 1.0, or MMPL. Please check the contents of the license located in
+ * 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.pipes;
 
 import net.minecraft.block.Block;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
-import net.minecraftforge.common.ForgeDirection;
 import buildcraft.BuildCraftTransport;
-import buildcraft.api.inventory.ISpecialInventory;
 import buildcraft.core.GuiIds;
 import buildcraft.core.proxy.CoreProxy;
 import buildcraft.core.inventory.SimpleInventory;
 import buildcraft.transport.BlockGenericPipe;
+import net.minecraft.inventory.IInventory;
 
-public class PipeLogicDiamond extends PipeLogic implements ISpecialInventory {
+public class PipeLogicDiamond extends PipeLogic {
 
-	private SimpleInventory filters = new SimpleInventory(54, "items", 1);
+	private SimpleInventory filters = new SimpleInventory(54, "Filters", 1);
 
 	/* PIPE LOGIC */
 	@Override
@@ -57,94 +53,7 @@ public class PipeLogicDiamond extends PipeLogic implements ISpecialInventory {
 		filters.writeToNBT(nbttagcompound);
 	}
 
-	/* ISPECIALINVENTORY */
+	public IInventory getFilters() {
-	@Override
+		return filters;
-	public int addItem(ItemStack stack, boolean doAdd, ForgeDirection from) {
-		return 0;
 	}
-
-	@Override
-	public ItemStack[] extractItem(boolean doRemove, ForgeDirection from, int maxItemCount) {
-		return new ItemStack[0];
-	}
-
-	/* IINVENTORY IMPLEMENTATION */
-	@Override
-	public int getSizeInventory() {
-		return filters.getSizeInventory();
-	}
-
-	@Override
-	public ItemStack getStackInSlot(int i) {
-		return filters.getStackInSlot(i);
-	}
-
-	@Override
-	public String getInvName() {
-		return "Filters";
-	}
-
-	@Override
-	public int getInventoryStackLimit() {
-		return filters.getInventoryStackLimit();
-	}
-
-	@Override
-	public ItemStack getStackInSlotOnClosing(int i) {
-		return filters.getStackInSlotOnClosing(i);
-	}
-
-	@Override
-	public void onInventoryChanged() {
-		filters.onInventoryChanged();
-	}
-
-	@Override
-	public boolean isUseableByPlayer(EntityPlayer var1) {
-		return worldObj.getBlockTileEntity(xCoord, yCoord, zCoord) == container;
-	}
-
-	@Override
-	public void openChest() {
-	}
-
-	@Override
-	public void closeChest() {
-	}
-
-	@Override
-	public ItemStack decrStackSize(int i, int j) {
-		ItemStack stack = filters.decrStackSize(i, j);
-
-		if (CoreProxy.proxy.isSimulating(worldObj)) {
-			worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
-		}
-
-		return stack;
-	}
-
-	@Override
-	public void setInventorySlotContents(int i, ItemStack itemstack) {
-
-		filters.setInventorySlotContents(i, itemstack);
-		if (CoreProxy.proxy.isSimulating(worldObj)) {
-			worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
-		}
-
-	}
-
-    @Override
-    public boolean isInvNameLocalized()
-    {
-        // TODO Auto-generated method stub
-        return false;
-    }
-
-    @Override
-    public boolean isStackValidForSlot(int i, ItemStack itemstack)
-    {
-        // TODO Auto-generated method stub
-        return false;
-    }
-
 }

common/buildcraft/transport/pipes/PipePowerWood.java

@@ -50,16 +50,7 @@ public class PipePowerWood extends Pipe implements IPowerReceptor {
 
 	@Override
 	public int getIconIndex(ForgeDirection direction) {
-		if (direction == ForgeDirection.UNKNOWN)
+		return standardIconIndex;
-			return standardIconIndex;
-		else {
-			int metadata = worldObj.getBlockMetadata(xCoord, yCoord, zCoord);
-
-			if (metadata == direction.ordinal())
-				return solidIconIndex;
-			else
-				return standardIconIndex;
-		}
 	}
 
 	@Override
@@ -94,8 +85,10 @@ public class PipePowerWood extends Pipe implements IPowerReceptor {
 			}
 		}
 
-		if (sources <= 0)
+		if (sources <= 0) {
+			powerHandler.useEnergy(5, 5, true);
 			return;
+		}
 
 		float energyToRemove;
 
@@ -139,6 +132,9 @@ public class PipePowerWood extends Pipe implements IPowerReceptor {
 	public void writeToNBT(NBTTagCompound data) {
 		super.writeToNBT(data);
 		powerHandler.writeToNBT(data);
+		for (int i = 0; i < ForgeDirection.VALID_DIRECTIONS.length; i++) {
+			data.setBoolean("powerSources[" + i + "]", powerSources[i]);
+		}
 	}
 
 	@Override
@@ -146,5 +142,8 @@ public class PipePowerWood extends Pipe implements IPowerReceptor {
 		super.readFromNBT(data);
 		powerHandler.readFromNBT(data);
 		initPowerProvider();
+		for (int i = 0; i < ForgeDirection.VALID_DIRECTIONS.length; i++) {
+			powerSources[i] = data.getBoolean("powerSources[" + i + "]");
+		}
 	}
 }