I am working on the player inventory on the server side,

and i found that it has to be synced with client before use.

So I tried the following:

 

inventoryContainer.inventoryItemStacks

.set(i + 9, inventory.getStackInSlot(i));

inventory.setInventorySlotContents(func(i), stack);

inventoryContainer.detectandSendChanges();

 

But when i opened the Enchanting Table and Shift-clicked the specific item,

the item is copied, and when i clicked the item again, it just disappears.

Anyone knows why these happens?

Any Ideas?

Only manipulate things on the server side.

Only manipulate things on the server side.

I was already manipulating things only on the server side,

but the problem is the most part of the player inventory is controlled from the client side in the minecraft.

You don't need to manipulate the container. Just use the methods in InventoryPlayer.

You don't need to manipulate the container. Just use the methods in InventoryPlayer.

I already tried that, and had duplication issues which might be related with the syncing.