Minecraft Script Generated by ScripterAI

"Add an item with a two-slot inventory that can only contain diamonds"

/* This mod creates an item with a two-slot inventory that can only contain diamonds. */

public class DiamondContainerItem extends Item {
    public DiamondContainerItem(Properties properties) {
        super(properties);
    }
    
    @Override
    public ActionResult<ItemStack> use(World world, PlayerEntity player, Hand hand) {
        if (!world.isClientSide) {
            NetworkHooks.openGui((ServerPlayerEntity) player, new SimpleNamedContainerProvider((id, inventory, playerEntity) -> {
                return new DiamondContainer(id, inventory);
            }, new TranslationTextComponent("container.diamond_container")));
        }
        return ActionResult.success(player.getItemInHand(hand));
    }
}

public class DiamondContainer extends Container {
    private final IInventory inventory;

public DiamondContainer(int id, PlayerInventory playerInventory) {
        super(ContainerType.GENERIC_9x2, id);
        this.inventory = new Inventory(2);
        for (int i = 0; i < 2; i++) {
            this.addSlot(new Slot(this.inventory, i, 8 + i * 18, 18) {
                @Override
                public boolean mayPlace(ItemStack stack) {
                    return stack.getItem() == Items.DIAMOND;
                }
            });
        }
    }
    
    @Override
    public boolean stillValid(PlayerEntity player) {
        return true;
    }
}
/* Note: You will need to register the item and container type in your mod's registry events. */