fix pathfinding over cables (#2972)

src/main/java/com/refinedmods/refinedstorage/block/CableBlock.java

@@ -11,6 +11,7 @@ import net.minecraft.fluid.Fluid;
 import net.minecraft.fluid.FluidState;
 import net.minecraft.fluid.Fluids;
 import net.minecraft.item.BlockItemUseContext;
+import net.minecraft.pathfinding.PathType;
 import net.minecraft.state.BooleanProperty;
 import net.minecraft.state.StateContainer;
 import net.minecraft.tileentity.TileEntity;
@@ -66,6 +67,11 @@ public class CableBlock extends NetworkNodeBlock implements IWaterLoggable {
         return getState(state, world, pos);
     }
 
+    @Override
+    public boolean allowsMovement(BlockState state, IBlockReader worldIn, BlockPos pos, PathType type) {
+        return false;
+    }
+
     @Override
     @SuppressWarnings("deprecation")
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {