1 files changed, 6 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
index 89c75a0b4c..6856f54887 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
@@ -409,6 +409,12 @@ public abstract class GT_MetaTileEntity_MultiBlockBase extends MetaTileEntity {
         return 6;
     }
 
+
+    public int getCurrentEfficiency(ItemStack itemStack) {
+            int maxEff = getMaxEfficiency(itemStack);
+            return maxEff - (getIdealStatus() - getRepairStatus()) * maxEff / 10;
+        }
+
     public boolean doRandomMaintenanceDamage() {
         if (!isCorrectMachinePart(mInventory[1]) || getRepairStatus() == 0) {
             stopMachine();