fix memory card will not be saved in inventory manager

src/main/java/de/srendi/advancedperipherals/common/blocks/base/PeripheralBlockEntity.java

@@ -11,13 +11,15 @@
 import net.minecraft.core.NonNullList;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
 import net.minecraft.world.ContainerHelper;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.WorldlyContainer;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.entity.BaseContainerBlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
@@ -119,17 +121,49 @@ public ITextComponent getDisplayName() {
     }*/
 
     @Override
-    public void saveAdditional(@NotNull CompoundTag compound) {
+    public void load(@NotNull CompoundTag compound) {
+        ContainerHelper.loadAllItems(compound, items);
+        peripheralSettings = compound.getCompound(PERIPHERAL_SETTINGS_KEY);
+        super.load(compound);
+    }
+
+    /**
+     * will automatically adds shared data at the end
+     *
+     * @see saveShared
+     */
+    @Override
+    protected void saveAdditional(@NotNull CompoundTag compound) {
         super.saveAdditional(compound);
+        this.saveShared(compound);
         ContainerHelper.saveAllItems(compound, items);
         if (!peripheralSettings.isEmpty()) compound.put(PERIPHERAL_SETTINGS_KEY, peripheralSettings);
     }
 
+    /**
+     * will automatically adds shared data at the end
+     *
+     * @return combined update tag and shared data
+     * @see saveShared
+     */
     @Override
-    public void load(@NotNull CompoundTag compound) {
-        ContainerHelper.loadAllItems(compound, items);
-        peripheralSettings = compound.getCompound(PERIPHERAL_SETTINGS_KEY);
-        super.load(compound);
+    public CompoundTag getUpdateTag() {
+        final CompoundTag compound = super.getUpdateTag();
+        this.saveShared(compound);
+        return compound;
+    }
+
+    /**
+     * define datas that should both be saved on server and sync to client
+     *
+     * @see saveAdditional
+     * @see getUpdateTag
+     */
+    protected void saveShared(@NotNull CompoundTag compound) {}
+
+    @Override
+    public ClientboundBlockEntityDataPacket getUpdatePacket() {
+        return ClientboundBlockEntityDataPacket.create(this);
     }
 
     @Override
@@ -171,12 +205,13 @@ public int getContainerSize() {
     @Override
     public boolean isEmpty() {
         for (ItemStack itemStack : items) {
-            if (itemStack.isEmpty()) return true;
+            if (!itemStack.isEmpty()) {
+                return false;
+            }
         }
-        return false;
+        return true;
     }
 
-
     @NotNull
     @Override
     public ItemStack getItem(int index) {
@@ -189,7 +224,11 @@ public ItemStack getItem(int index) {
     @NotNull
     @Override
     public ItemStack removeItem(int index, int count) {
-        return ContainerHelper.removeItem(items, index, count);
+        ItemStack removed = ContainerHelper.removeItem(items, index, count);
+        if (!removed.isEmpty()) {
+            this.setChanged();
+        }
+        return removed;
     }
 
     @NotNull
@@ -204,6 +243,7 @@ public void setItem(int index, @NotNull ItemStack stack) {
         if (stack.getCount() > getMaxStackSize()) {
             stack.setCount(getMaxStackSize());
         }
+        this.setChanged();
     }
 
     @Override
@@ -214,6 +254,7 @@ public boolean stillValid(@NotNull Player player) {
     @Override
     public void clearContent() {
         items.clear();
+        this.setChanged();
     }
 
     public CompoundTag getPeripheralSettings() {
@@ -222,7 +263,22 @@ public CompoundTag getPeripheralSettings() {
 
     @Override
     public void markSettingsChanged() {
-        setChanged();
+        this.setChanged();
+    }
+
+    /**
+     * set this block entity as {@link setChanged changed}, and sync the change to client
+     *
+     * @see saveShared
+     * @see getUpdateTag
+     */
+    public void markDataSync() {
+        Level level = this.getLevel();
+        if (level == null || level.isClientSide) {
+            return;
+        }
+        this.setChanged();
+        level.sendBlockUpdated(this.getBlockPos(), this.getBlockState(), this.getBlockState(), 0 /* no use on server-side */);
     }
 }
 

src/main/java/de/srendi/advancedperipherals/common/blocks/blockentities/InventoryManagerEntity.java

@@ -6,8 +6,6 @@
 import de.srendi.advancedperipherals.common.container.InventoryManagerContainer;
 import de.srendi.advancedperipherals.common.items.MemoryCardItem;
 import de.srendi.advancedperipherals.common.setup.BlockEntityTypes;
-import de.srendi.advancedperipherals.network.APNetworking;
-import de.srendi.advancedperipherals.network.toclient.InventoryManagerUpdatePacket;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
@@ -39,9 +37,6 @@ protected InventoryManagerPeripheral createPeripheral() {
 
     @Override
     public InventoryManagerContainer createContainer(int id, Inventory playerInventory, BlockPos pos, Level world) {
-        // Update the clients instance of the inventory manager so the UI shows the correct owner
-        updateClient();
-
         return new InventoryManagerContainer(id, playerInventory, pos, world);
     }
 
@@ -58,6 +53,7 @@ public boolean canPlaceItemThroughFace(int index, @NotNull ItemStack itemStackIn
 
     @Override
     public void setItem(int index, @NotNull ItemStack stack) {
+        boolean shouldClearOwner = false;
         if (stack.getItem() instanceof MemoryCardItem) {
             if (stack.hasTag() && stack.getTag().contains("ownerId")) {
                 UUID owner = stack.getTag().getUUID("ownerId");
@@ -66,12 +62,14 @@ public void setItem(int index, @NotNull ItemStack stack) {
                 stack.getTag().remove("owner");
             } else if (stack != this.getItem(index)) {
                 // Only clear owner when the new card item is not the current item
-                this.owner = null;
+                shouldClearOwner = true;
             }
         } else {
-            owner = null;
+            shouldClearOwner = true;
+        }
+        if (shouldClearOwner && this.getLevel() != null && !this.getLevel().isClientSide) {
+            this.owner = null;
         }
-        updateClient();
         super.setItem(index, stack);
     }
 
@@ -87,22 +85,24 @@ public void load(@NotNull CompoundTag data) {
             this.owner = data.getUUID("ownerId");
         }
         super.load(data);
-        // Fresh the memory card for backward compatibility
-        this.setItem(0, this.getItem(0));
     }
 
     @Override
-    public void saveAdditional(@NotNull CompoundTag data) {
-        super.saveAdditional(data);
+    protected void saveShared(@NotNull CompoundTag data) {
+        super.saveShared(data);
         if (this.owner != null) {
             data.putUUID("ownerId", this.owner);
         }
     }
 
-    public void updateClient() {
-        if (level.isClientSide())
-            return;
-        APNetworking.sendToAllAround(new InventoryManagerUpdatePacket(owner != null, this.owner, this.getBlockPos()), this.getLevel().dimension(), this.getBlockPos(), 10);
+    @Override
+    public void onLoad() {
+        super.onLoad();
+        // Fresh the memory card for backward compatibility
+        // TODO: remove in 0.8
+        if (!this.getLevel().isClientSide) {
+            this.setItem(0, this.getItem(0));
+        }
     }
 
     public Player getOwnerPlayer() {
@@ -113,11 +113,11 @@ public Player getOwnerPlayer() {
         return player;
     }
 
-    public void setOwner(UUID owner) {
-        this.owner = owner;
-    }
-
     public UUID getOwner() {
         return owner;
     }
+
+    public void setOwner(UUID owner) {
+        this.owner = owner;
+    }
 }

src/main/java/de/srendi/advancedperipherals/network/APNetworking.java

@@ -2,7 +2,6 @@
 
 import de.srendi.advancedperipherals.AdvancedPeripherals;
 import de.srendi.advancedperipherals.network.base.IPacket;
-import de.srendi.advancedperipherals.network.toclient.InventoryManagerUpdatePacket;
 import de.srendi.advancedperipherals.network.toclient.ToastToClientPacket;
 import de.srendi.advancedperipherals.network.toclient.UsernameToCachePacket;
 import de.srendi.advancedperipherals.network.toserver.RetrieveUsernamePacket;
@@ -33,7 +32,6 @@ public class APNetworking {
     public static void init() {
         registerServerToClient(ToastToClientPacket.class, ToastToClientPacket::decode);
         registerServerToClient(UsernameToCachePacket.class, UsernameToCachePacket::decode);
-        registerServerToClient(InventoryManagerUpdatePacket.class, InventoryManagerUpdatePacket::decode);
 
         registerClientToServer(RetrieveUsernamePacket.class, RetrieveUsernamePacket::decode);
     }