fix covers not preventing netrwork connections

src/main/java/com/refinedmods/refinedstorage/api/network/node/INetworkNode.java

@@ -3,6 +3,7 @@ package com.refinedmods.refinedstorage.api.network.node;
 import com.refinedmods.refinedstorage.api.network.INetwork;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
@@ -91,6 +92,15 @@ public interface INetworkNode {
      */
     ResourceLocation getId();
 
+    /**
+     * @param direction the direction
+     * @return whether a network signal can be conducted in the given direction.
+     */
+
+    default boolean canConduct(Direction direction) {
+        return true;
+    }
+
     /**
      * @param owner the owner
      */

src/main/java/com/refinedmods/refinedstorage/apiimpl/network/node/CableNetworkNode.java

@@ -3,8 +3,9 @@ package com.refinedmods.refinedstorage.apiimpl.network.node;
 import com.refinedmods.refinedstorage.RS;
 import com.refinedmods.refinedstorage.api.network.node.ICoverable;
 import com.refinedmods.refinedstorage.apiimpl.network.node.cover.CoverManager;
-import com.refinedmods.refinedstorage.util.WorldUtils;
+import com.refinedmods.refinedstorage.apiimpl.network.node.cover.CoverType;
 import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
@@ -19,6 +20,11 @@ public class CableNetworkNode extends NetworkNode implements ICoverable {
         this.coverManager = new CoverManager(this);
     }
 
+    @Override
+    public boolean canConduct(Direction direction) {
+        return !coverManager.hasCover(direction) || coverManager.getCover(direction).getType() == CoverType.HOLLOW;
+    }
+
     @Override
     public int getEnergyUsage() {
         return RS.SERVER_CONFIG.getCable().getUsage();

src/main/java/com/refinedmods/refinedstorage/apiimpl/network/node/NetworkNode.java

@@ -8,6 +8,7 @@ import com.refinedmods.refinedstorage.apiimpl.API;
 import com.refinedmods.refinedstorage.block.BaseBlock;
 import com.refinedmods.refinedstorage.block.NetworkNodeBlock;
 import com.refinedmods.refinedstorage.tile.config.RedstoneMode;
+import com.refinedmods.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.BlockState;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
@@ -224,18 +225,20 @@ public abstract class NetworkNode implements INetworkNode, INetworkNodeVisitor {
         return world;
     }
 
-    /**
-     * @param direction the direction
-     * @return whether a network signal can be conducted in the given direction.
-     */
-    protected boolean canConduct(Direction direction) {
+
+    @Override
+    public boolean canConduct(Direction direction) {
         return true;
     }
 
     @Override
     public void visit(Operator operator) {
         for (Direction facing : Direction.values()) {
-            if (canConduct(facing)) {
+            INetworkNode oppositeNode = NetworkUtils.getNodeFromTile(world.getTileEntity(pos.offset(facing)));
+            if (oppositeNode == null) {
+                continue;
+            }
+            if (canConduct(facing) && oppositeNode.canConduct(facing.getOpposite())) {
                 operator.apply(world, pos.offset(facing), facing.getOpposite());
             }
         }

src/main/java/com/refinedmods/refinedstorage/apiimpl/network/node/RelayNetworkNode.java

@@ -37,7 +37,7 @@ public class RelayNetworkNode extends NetworkNode {
     }
 
     @Override
-    protected boolean canConduct(Direction direction) {
+    public boolean canConduct(Direction direction) {
         return canUpdate();
     }
 

src/main/java/com/refinedmods/refinedstorage/apiimpl/network/node/WirelessTransmitterNetworkNode.java

@@ -75,7 +75,7 @@ public class WirelessTransmitterNetworkNode extends NetworkNode implements IWire
     }
 
     @Override
-    protected boolean canConduct(Direction direction) {
+    public boolean canConduct(Direction direction) {
         return Direction.DOWN.equals(direction);
     }