1 files changed, 9 insertions, 5 deletions
diff --git a/src/main/java/gregtech/api/util/GT_CoverBehavior.java b/src/main/java/gregtech/api/util/GT_CoverBehavior.java
index 38c01b9d92..c0ad751add 100644
--- a/src/main/java/gregtech/api/util/GT_CoverBehavior.java
+++ b/src/main/java/gregtech/api/util/GT_CoverBehavior.java
@@ -46,14 +46,18 @@ public abstract class GT_CoverBehavior {
      * return the new Value of the Cover Variable
      */
     public int onCoverScrewdriverclick(byte aSide, int aCoverID, int aCoverVariable, ICoverable aTileEntity, EntityPlayer aPlayer, float aX, float aY, float aZ) {
-        if (!hasCoverGUI())
-            return aCoverVariable;
+        return aCoverVariable;
+    }
 
-        if(aPlayer instanceof EntityPlayerMP) {
+    /**
+     * Called when someone shift-rightclicks this Cover with no tool. Doesn't call @onCoverRightclick in this Case.
+     */
+    public boolean onCoverShiftRightclick(byte aSide, int aCoverID, int aCoverVariable, ICoverable aTileEntity, EntityPlayer aPlayer) {
+        if(hasCoverGUI() && aPlayer instanceof EntityPlayerMP) {
             GT_Values.NW.sendToPlayer(new GT_Packet_TileEntityCoverGUI(aSide, aCoverID, aCoverVariable, aTileEntity, (EntityPlayerMP) aPlayer), (EntityPlayerMP) aPlayer);
+            return true;
         }
-
-        return aCoverVariable;
+        return false;
     }
 
     public boolean hasCoverGUI() {