[1.12] How to get selected slot index on client side?

[WildHeart]

Hello, i created custom GuiScreen on client and Container on server, now I was faced with the problem of how to obtain on the client which slot was clicked/selected by mouse click. On the server in the container I created the variable, and the client does not know how to do. Can you tell me?

[Jay Avery]

Use packets to send information from the server to the client.

[WildHeart]

5 minutes ago, Jay Avery said:

Use packets to send information from the server to the client.

Ok, thanks.

[WildHeart]

6 minutes ago, Jay Avery said:

Use packets to send information from the server to the client.

Not to create a separate topic, could you tell me how to pass packets through the ArrayList?

[Jay Avery]

26 minutes ago, WildHeart said:

Not to create a separate topic, could you tell me how to pass packets through the ArrayList?

What do you mean?

[WildHeart]

4 minutes ago, Jay Avery said:

What do you mean?

How to send packet with List<String>? (How to convert List<String> to bytes.)

[Jay Avery]

Just now, WildHeart said:

How to send packet with List<String>? (How to convert List<String> to bytes.)

Store the size of the list as an integer, then loop through the list and store each string. To read it, create a new list, read the size, and then loop through that number of times to read each string.

[WildHeart]

4 minutes ago, Jay Avery said:

Store the size of the list as an integer, then loop through the list and store each string. To read it, create a new list, read the size, and then loop through that number of times to read each string.

So?

private byte[] writeToByteArray(ArrayList<UObject> list) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream out = new ObjectOutputStream(baos);
    for (UObject element : list) {
        out.writeObject(element);
    }
    return baos.toByteArray();
}