Fix inputs null stuff

src/main/java/refinedstorage/api/autocrafting/task/IProcessable.java

@@ -3,6 +3,8 @@ package refinedstorage.api.autocrafting.task;
 import net.minecraft.item.ItemStack;
 import refinedstorage.api.autocrafting.ICraftingPattern;
 
+import java.util.Deque;
+
 /**
  * Represents a item in a crafting task that can be processed.
  */
@@ -13,14 +15,9 @@ public interface IProcessable {
     ICraftingPattern getPattern();
 
     /**
-     * @return the first stack to attempt inserting
+     * @return the stacks to insert
      */
-    ItemStack getStackToInsert();
-
-    /**
-     * Moves to the next stack to insert.
-     */
-    void nextStack();
+    Deque<ItemStack> getToInsert();
 
     /**
      * @return true if we received all outputs, false otherwise

src/main/java/refinedstorage/apiimpl/autocrafting/task/CraftingTask.java

@@ -213,13 +213,13 @@ public class CraftingTask implements ICraftingTask {
         for (IProcessable processable : toProcess) {
             IItemHandler inventory = processable.getPattern().getContainer().getFacingInventory();
 
-            if (inventory != null && processable.getStackToInsert() != null) {
-                ItemStack toInsert = network.extractItem(processable.getStackToInsert(), 1, compare);
+            if (inventory != null && !processable.getToInsert().isEmpty()) {
+                ItemStack toInsert = network.extractItem(processable.getToInsert().peek(), 1, compare);
 
                 if (ItemHandlerHelper.insertItem(inventory, toInsert, true) == null) {
                     ItemHandlerHelper.insertItem(inventory, toInsert, false);
 
-                    processable.nextStack();
+                    processable.getToInsert().pop();
                 }
             }
         }

src/main/java/refinedstorage/apiimpl/autocrafting/task/Processable.java

@@ -5,14 +5,23 @@ import refinedstorage.api.autocrafting.ICraftingPattern;
 import refinedstorage.api.autocrafting.task.IProcessable;
 import refinedstorage.apiimpl.API;
 
+import java.util.ArrayDeque;
+import java.util.Deque;
+
 public class Processable implements IProcessable {
     private ICraftingPattern pattern;
-    private int pos;
+    private Deque<ItemStack> toInsert = new ArrayDeque<>();
     private boolean satisfied[];
 
     public Processable(ICraftingPattern pattern) {
         this.pattern = pattern;
         this.satisfied = new boolean[pattern.getOutputs().size()];
+
+        for (ItemStack input : pattern.getInputs()) {
+            if (input != null) {
+                toInsert.add(input.copy());
+            }
+        }
     }
 
     @Override
@@ -21,17 +30,8 @@ public class Processable implements IProcessable {
     }
 
     @Override
-    public void nextStack() {
-        ++pos;
-    }
-
-    @Override
-    public ItemStack getStackToInsert() {
-        if (pos > pattern.getInputs().size() - 1) {
-            return null;
-        }
-
-        return pattern.getInputs().get(pos);
+    public Deque<ItemStack> getToInsert() {
+        return toInsert;
     }
 
     @Override

src/main/java/refinedstorage/tile/TileController.java

@@ -448,9 +448,11 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             int score = 0;
 
             for (ItemStack input : patterns.get(i).getInputs()) {
-                ItemStack stored = itemStorage.getList().get(input, IComparer.COMPARE_DAMAGE | IComparer.COMPARE_NBT);
+                if (input != null) {
+                    ItemStack stored = itemStorage.getList().get(input, IComparer.COMPARE_DAMAGE | IComparer.COMPARE_NBT);
 
-                score += stored != null ? stored.stackSize : 0;
+                    score += stored != null ? stored.stackSize : 0;
+                }
             }
 
             if (score > highestScore) {