1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/recipe/maps/UnpackagerBackend.java b/src/main/java/gregtech/api/recipe/maps/UnpackagerBackend.java
new file mode 100644
index 0000000000..e7297f0609
--- /dev/null
+++ b/src/main/java/gregtech/api/recipe/maps/UnpackagerBackend.java
@@ -0,0 +1,53 @@
+package gregtech.api.recipe.maps;
+
+import javax.annotation.Nullable;
+import javax.annotation.ParametersAreNonnullByDefault;
+
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.fluids.FluidStack;
+
+import gregtech.api.enums.GT_Values;
+import gregtech.api.enums.ItemList;
+import gregtech.api.recipe.RecipeMapBackend;
+import gregtech.api.recipe.RecipeMapBackendPropertiesBuilder;
+import gregtech.api.util.GT_ModHandler;
+import gregtech.api.util.GT_Recipe;
+import gregtech.api.util.MethodsReturnNonnullByDefault;
+
+@ParametersAreNonnullByDefault
+@MethodsReturnNonnullByDefault
+public class UnpackagerBackend extends RecipeMapBackend {
+
+    public UnpackagerBackend(RecipeMapBackendPropertiesBuilder propertiesBuilder) {
+        super(propertiesBuilder);
+    }
+
+    @Override
+    protected GT_Recipe findFallback(ItemStack[] items, FluidStack[] fluids, @Nullable ItemStack specialSlot) {
+        if (items.length == 0 || !ItemList.IC2_Scrapbox.isStackEqual(items[0], false, true)) {
+            return null;
+        }
+
+        ItemStack output = GT_ModHandler.getRandomScrapboxDrop();
+        if (output == null) {
+            return null;
+        }
+        return GT_Values.RA.stdBuilder()
+            .itemInputs(ItemList.IC2_Scrapbox.get(1))
+            .itemOutputs(output)
+            .duration(16)
+            .eut(1)
+            // It is not allowed to be buffered due to the random Output
+            .noBuffer()
+            // Due to its randomness it is not good if there are Items in the Output Slot, because those Items could
+            // manipulate the outcome.
+            .needsEmptyOutput()
+            .build()
+            .orElse(null);
+    }
+
+    @Override
+    public boolean containsInput(ItemStack item) {
+        return ItemList.IC2_Scrapbox.isStackEqual(item, false, true) || super.containsInput(item);
+    }
+}