public static void openInventory(IInventory inv, EntityPlayerMP player)
    {
        Container container = new GUIContainer(player.inventory, inv, player);
        if (player.openContainer != player.inventoryContainer)
        {
            player.closeScreen();
        }

        player.getNextWindowId();
        player.playerNetServerHandler.sendPacket(new S2DPacketOpenWindow(player.currentWindowId, "minecraft:container", inv.getDisplayName(), inv.getSizeInventory()));
        player.openContainer = container;
        player.openContainer.windowId = player.currentWindowId;
    }