Influenced by SourceMod menu, allows to display menus, votes, options, confirmation prompts, alerts, and other interactive dialogs/menus.

MenuItemType enumeration

Spacer = empty space
PlainText = plain white text (cannot be selected)
Button = button that can be selected
DisabledButton = grayed-out button that cannot be selected

Button Index Codes

-2 = Menu was closed by MenuClose packet

-1 = Menu was closed by user hitting Escape

0 = Last button (bottom-most)

1, 2, 3.. = Other buttons, starting with the top button.

Packets (Server -> Client)

Notification

Simple plain-text message with a "close" button. Usable for showing server rules, world descriptions, global notifications, etc - any kind of information that the user just needs to read through and close.

byte OpCode
string Message
string CloseButtonLabel
bool CloseOnSelection - If enabled, client may close the menu immediately after selection. Otherwise, it should wait for CloseMenu packet.

MenuYesNo

A plain-text message with two buttons - one for "Yes", and one for "No". Can be used for votes or confirmation prompts. No close button is shown.

byte OpCode
string Message - Label to be shown above the two options. Not selectable.
string YesButtonLabel - Option 1
string NoButtonLabel - Option 2
bool CloseOnSelection - If enabled, client may close the menu immediately after selection. Otherwise, it should wait for CloseMenu packet.

Fully-featured way to construct menus. Allows customizing each line if the menu.

byte OpCode
string Message
byte MenuItemCount
- byte MenuItemType
- string MenuItemLabel
string CloseButtonLabel
bool CloseOnSelection - If enabled, client may close the menu immediately after selection. Otherwise, it should wait for CloseMenu packet.

MenuClose

Forces any open menu to close. No reply is expected from the client. If no menu is currently open, client can ignore this.

byte OpCode

Packets (Client -> Server)

MenuItemSelected

byte OpCode
sbyte ButtonIndex