1 files changed, 4 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/items/GT_RadioactiveCell_Item.java b/src/main/java/gregtech/api/items/GT_RadioactiveCell_Item.java
index 7ceaf43f2e..9ef5266329 100644
--- a/src/main/java/gregtech/api/items/GT_RadioactiveCell_Item.java
+++ b/src/main/java/gregtech/api/items/GT_RadioactiveCell_Item.java
@@ -37,6 +37,10 @@ public class GT_RadioactiveCell_Item
         return b;
     }
 
+    protected static int triangularNumber(int x)
+        {
+           return (x * x + x) / 2;
+            }
     protected boolean outputPulseForStack(ItemStack aStack) {
         NBTTagCompound tNBT = aStack.getTagCompound();
         if (tNBT == null) {