Added packet handlers, guis, etc required to handle the routing nodes. Added the ability to have a different filter for each direction.

src/main/java/WayofTime/bloodmagic/tile/routing/TileFilteredRoutingNode.java

@@ -0,0 +1,57 @@
+package WayofTime.bloodmagic.tile.routing;
+
+import net.minecraft.inventory.ISidedInventory;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumFacing;
+
+public class TileFilteredRoutingNode extends TileRoutingNode implements ISidedInventory
+{
+    public int currentActiveSlot = 0;
+
+    public TileFilteredRoutingNode(int size, String name)
+    {
+        super(size, name);
+    }
+
+    @Override
+    public void readFromNBT(NBTTagCompound tag)
+    {
+        super.readFromNBT(tag);
+        currentActiveSlot = tag.getInteger("currentSlot");
+    }
+
+    @Override
+    public void writeToNBT(NBTTagCompound tag)
+    {
+        super.writeToNBT(tag);
+        tag.setInteger("currentSlot", currentActiveSlot);
+    }
+
+    public void swapFilters(int requestedSlot)
+    {
+        this.setInventorySlotContents(currentActiveSlot + 1, this.getStackInSlot(0));
+        this.setInventorySlotContents(0, this.getStackInSlot(requestedSlot + 1));
+        this.setInventorySlotContents(requestedSlot + 1, null);
+        currentActiveSlot = requestedSlot;
+        this.markDirty();
+    }
+
+    @Override
+    public int[] getSlotsForFace(EnumFacing side)
+    {
+        return new int[0];
+    }
+
+    @Override
+    public boolean canInsertItem(int index, ItemStack itemStackIn, EnumFacing direction)
+    {
+        return false;
+    }
+
+    @Override
+    public boolean canExtractItem(int index, ItemStack stack, EnumFacing direction)
+    {
+        return false;
+    }
+}

src/main/java/WayofTime/bloodmagic/tile/routing/TileInputRoutingNode.java

@@ -1,9 +1,9 @@
 package WayofTime.bloodmagic.tile.routing;
 
-public class TileInputRoutingNode extends TileRoutingNode
+public class TileInputRoutingNode extends TileFilteredRoutingNode
 {
     public TileInputRoutingNode()
     {
-        super(1, "inputNode");
+        super(7, "inputNode");
     }
 }

src/main/java/WayofTime/bloodmagic/tile/routing/TileOutputRoutingNode.java

@@ -1,9 +1,9 @@
 package WayofTime.bloodmagic.tile.routing;
 
-public class TileOutputRoutingNode extends TileRoutingNode
+public class TileOutputRoutingNode extends TileFilteredRoutingNode
 {
     public TileOutputRoutingNode()
     {
-        super(1, "outputNode");
+        super(7, "outputNode");
     }
 }