Several fixes for Tesla Cover (#2671)

* Fix tesla cover memory leak

* Fix tesla crash when destroying tesla cover

* Add max output display

2 files changed, 20 insertions, 2 deletions

diff --git a/src/main/java/gregtech/api/metatileentity/BaseMetaTileEntity.java b/src/main/java/gregtech/api/metatileentity/BaseMetaTileEntity.java
index bf6358c884..386975dd6d 100644
--- a/src/main/java/gregtech/api/metatileentity/BaseMetaTileEntity.java
+++ b/src/main/java/gregtech/api/metatileentity/BaseMetaTileEntity.java
@@ -980,9 +980,9 @@ public class BaseMetaTileEntity extends CommonMetaTileEntity
     @Override
     public void onChunkUnload() {
         if (canAccessData()) {
+            onCoverUnload();
             mMetaTileEntity.onUnload();
         }
-
         super.onChunkUnload();
         onChunkUnloadAE();
     }
@@ -2276,7 +2276,9 @@ public class BaseMetaTileEntity extends CommonMetaTileEntity
 
     @Override
     public void onBlockDestroyed() {
-        if (canAccessData()) getMetaTileEntity().onBlockDestroyed();
+        if (canAccessData()) {
+            getMetaTileEntity().onBlockDestroyed();
+        }
     }
 
     @Override
diff --git a/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java b/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
index 277b79c777..4dce0a083e 100644
--- a/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
+++ b/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
@@ -194,6 +194,22 @@ public abstract class CoverableTileEntity extends BaseTileEntity implements ICov
         return true;
     }
 
+    protected void onCoverUnload() {
+        byte validCoversMask = this.validCoversMask;
+        if (validCoversMask == 0) return;
+
+        for (int i = Integer.numberOfTrailingZeros(validCoversMask); i < 6; i++) {
+            if (((validCoversMask >>> i) & 1) == 0) continue;
+            onCoverUnloadAtSide(ForgeDirection.VALID_DIRECTIONS[i]);
+        }
+    }
+
+    public void onCoverUnloadAtSide(ForgeDirection side) {
+        final CoverInfo coverInfo = getCoverInfoAtSide(side);
+        if (!coverInfo.isValid()) return;
+        coverInfo.onCoverUnload();
+    }
+
     public boolean tickCoverAtSide(ForgeDirection side) {
         return tickCoverAtSide(side, mTickTimer);
     }