ScreenHandler screenHandler = client.player.currentScreenHandler;
            DefaultedList<Slot> defaultedList = screenHandler.slots;
            int i = defaultedList.size();
            List<ItemStack> list = Lists.newArrayListWithCapacity(i);

            for (Slot slot : defaultedList) {
                list.add(slot.getStack().copy());
            }

            Int2ObjectMap<ItemStack> int2ObjectMap = new Int2ObjectOpenHashMap<>();

            for(int slot = 0; slot < i; ++slot) {
                ItemStack itemStack = list.get(slot);
                ItemStack itemStack2 = (defaultedList.get(slot)).getStack();
                if (!ItemStack.areEqual(itemStack, itemStack2)) {
                    int2ObjectMap.put(slot, itemStack2.copy());
                }
            }

            ((ClientConnectionAccessor) client.getNetworkHandler().getConnection()).getChannel().writeAndFlush(new ClickSlotC2SPacket(client.player.currentScreenHandler.syncId, client.player.currentScreenHandler.getRevision(), 0, 0, SlotActionType.QUICK_MOVE, client.player.currentScreenHandler.getCursorStack().copy(), int2ObjectMap));