Redstone reader writer handler

src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/readerwriter/ReaderWriterHandlerRedstone.java

@@ -0,0 +1,53 @@
+package com.raoulvdberge.refinedstorage.apiimpl.network.readerwriter;
+
+import com.raoulvdberge.refinedstorage.api.network.readerwriter.IReader;
+import com.raoulvdberge.refinedstorage.api.network.readerwriter.IReaderWriterChannel;
+import com.raoulvdberge.refinedstorage.api.network.readerwriter.IReaderWriterHandler;
+import com.raoulvdberge.refinedstorage.api.network.readerwriter.IWriter;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumFacing;
+import net.minecraftforge.common.capabilities.Capability;
+
+import javax.annotation.Nullable;
+
+public class ReaderWriterHandlerRedstone implements IReaderWriterHandler {
+    public static final String ID = "redstone";
+
+    @Override
+    public void update(IReaderWriterChannel channel) {
+        int strength = 0;
+
+        for (IReader reader : channel.getReaders()) {
+            strength += reader.getRedstoneStrength();
+        }
+
+        for (IWriter writer : channel.getWriters()) {
+            writer.setRedstoneStrength(strength);
+        }
+    }
+
+    @Override
+    public void onConnectionChange(boolean state) {
+        // @TODO: Destroy redstone strength
+    }
+
+    @Override
+    public NBTTagCompound writeToNBT(NBTTagCompound tag) {
+        return tag;
+    }
+
+    @Override
+    public String getId() {
+        return ID;
+    }
+
+    @Override
+    public boolean hasCapability(Capability<?> capability, @Nullable EnumFacing facing) {
+        return false;
+    }
+
+    @Override
+    public <T> T getCapability(Capability<T> capability, @Nullable EnumFacing facing) {
+        return null;
+    }
+}

src/main/java/com/raoulvdberge/refinedstorage/block/BlockWriter.java

@@ -10,6 +10,7 @@ import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 
 public class BlockWriter extends BlockNode {
@@ -33,6 +34,26 @@ public class BlockWriter extends BlockNode {
         return new TileWriter();
     }
 
+    @Override
+    @SuppressWarnings("deprecation")
+    public int getWeakPower(IBlockState state, IBlockAccess world, BlockPos pos, EnumFacing side) {
+        TileWriter writer = (TileWriter) world.getTileEntity(pos);
+
+        return side == writer.getDirection().getOpposite() ? writer.getRedstoneStrength() : 0;
+    }
+
+    @Override
+    @SuppressWarnings("deprecation")
+    public int getStrongPower(IBlockState state, IBlockAccess world, BlockPos pos, EnumFacing side) {
+        return getWeakPower(state, world, pos, side);
+    }
+
+    @Override
+    @SuppressWarnings("deprecation")
+    public boolean canProvidePower(IBlockState state) {
+        return true;
+    }
+
     @Override
     public EnumPlacementType getPlacementType() {
         return EnumPlacementType.ANY;

src/main/java/com/raoulvdberge/refinedstorage/proxy/ProxyCommon.java

@@ -10,6 +10,7 @@ import com.raoulvdberge.refinedstorage.apiimpl.autocrafting.preview.CraftingPrev
 import com.raoulvdberge.refinedstorage.apiimpl.autocrafting.preview.CraftingPreviewElementItemStack;
 import com.raoulvdberge.refinedstorage.apiimpl.autocrafting.registry.CraftingTaskFactory;
 import com.raoulvdberge.refinedstorage.apiimpl.network.readerwriter.ReaderWriterHandlerItems;
+import com.raoulvdberge.refinedstorage.apiimpl.network.readerwriter.ReaderWriterHandlerRedstone;
 import com.raoulvdberge.refinedstorage.apiimpl.solderer.*;
 import com.raoulvdberge.refinedstorage.apiimpl.storage.fluid.FluidStorageNBT;
 import com.raoulvdberge.refinedstorage.apiimpl.storage.item.ItemStorageNBT;
@@ -75,6 +76,7 @@ public class ProxyCommon {
         API.instance().getCraftingPreviewElementRegistry().add(CraftingPreviewElementFluidStack.ID, CraftingPreviewElementFluidStack::fromByteBuf);
 
         API.instance().getReaderWriterHandlerRegistry().add(ReaderWriterHandlerItems.ID, tag -> new ReaderWriterHandlerItems(tag));
+        API.instance().getReaderWriterHandlerRegistry().add(ReaderWriterHandlerRedstone.ID, tag -> new ReaderWriterHandlerRedstone());
 
         int id = 0;
 

src/main/java/com/raoulvdberge/refinedstorage/tile/TileWriter.java

@@ -31,10 +31,10 @@ public class TileWriter extends TileNode implements IWriter, IReaderWriter {
     public void update() {
         super.update();
 
-        if (!worldObj.isRemote && redstoneStrength != lastRedstoneStrength) {
-            lastRedstoneStrength = redstoneStrength;
+        if (!worldObj.isRemote && getRedstoneStrength() != lastRedstoneStrength) {
+            lastRedstoneStrength = getRedstoneStrength();
 
-            worldObj.notifyNeighborsOfStateChange(pos, RSBlocks.WRITER);
+            worldObj.notifyNeighborsOfStateChange(pos, RSBlocks.WRITER); // @TODO: Does this need to happen too on orientation change?
         }
     }