Several fixes for Tesla Cover (#2671)

* Fix tesla cover memory leak

* Fix tesla crash when destroying tesla cover

* Add max output display

4 files changed, 49 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);
     }
diff --git a/src/main/java/gregtech/api/util/GT_CoverBehavior.java b/src/main/java/gregtech/api/util/GT_CoverBehavior.java
index 34fc151b9a..3c3a8607fe 100644
--- a/src/main/java/gregtech/api/util/GT_CoverBehavior.java
+++ b/src/main/java/gregtech/api/util/GT_CoverBehavior.java
@@ -100,6 +100,18 @@ public abstract class GT_CoverBehavior extends GT_CoverBehaviorBase<ISerializabl
     }
 
     @Override
+    protected void onBaseTEDestroyedImpl(ForgeDirection side, int aCoverID,
+        ISerializableObject.LegacyCoverData aCoverVariable, ICoverable aTileEntity) {
+        onBaseTEDestroyed(side, aCoverID, convert(aCoverVariable), aTileEntity);
+    }
+
+    @Override
+    protected void onCoverUnloadImpl(ForgeDirection side, int aCoverID, ISerializableObject aCoverVariable,
+        ICoverable aTileEntity) {
+        onCoverUnload(aTileEntity);
+    }
+
+    @Override
     protected String getDescriptionImpl(ForgeDirection side, int aCoverID,
         ISerializableObject.LegacyCoverData aCoverVariable, ICoverable aTileEntity) {
         return getDescription(side, aCoverID, convert(aCoverVariable), aTileEntity);
@@ -275,6 +287,12 @@ public abstract class GT_CoverBehavior extends GT_CoverBehaviorBase<ISerializabl
         return true;
     }
 
+    public void onCoverUnload(ICoverable aTileEntity) {
+
+    }
+
+    public void onBaseTEDestroyed(ForgeDirection side, int aCoverID, int aCoverVariable, ICoverable aTileEntity) {}
+
     /**
      * Gives a small Text for the status of the Cover.
      */
diff --git a/src/main/java/gregtech/api/util/GT_CoverBehaviorBase.java b/src/main/java/gregtech/api/util/GT_CoverBehaviorBase.java
index be9492ebba..76408e59c0 100644
--- a/src/main/java/gregtech/api/util/GT_CoverBehaviorBase.java
+++ b/src/main/java/gregtech/api/util/GT_CoverBehaviorBase.java
@@ -256,6 +256,14 @@ public abstract class GT_CoverBehaviorBase<T extends ISerializableObject> {
     }
 
     /**
+     * Called when Base TE being unloaded.
+     */
+    public void onCoverUnload(ForgeDirection side, int aCoverID, ISerializableObject aCoverVariable,
+        ICoverable aTileEntity) {
+        onCoverUnloadImpl(side, aCoverID, forceCast(aCoverVariable), aTileEntity);
+    }
+
+    /**
      * How Blast Proof the Cover is. 30 is normal.
      */
     public final float getBlastProofLevel(ForgeDirection side, int aCoverID, ISerializableObject aCoverVariable,
@@ -581,6 +589,9 @@ public abstract class GT_CoverBehaviorBase<T extends ISerializableObject> {
 
     protected void onBaseTEDestroyedImpl(ForgeDirection side, int aCoverID, T aCoverVariable, ICoverable aTileEntity) {}
 
+    protected void onCoverUnloadImpl(ForgeDirection side, int aCoverID, ISerializableObject aCoverVariable,
+        ICoverable aTileEntity) {}
+
     protected boolean isRedstoneSensitiveImpl(ForgeDirection side, int aCoverID, T aCoverVariable,
         ICoverable aTileEntity, long aTimer) {
         return false;