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Add note about IRC users

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rubenwardy 2016-01-08 14:01:10 +00:00
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chapters/chat.md
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@ -89,6 +89,13 @@ return true, "You said " .. param .. "!"
This returns two values, firstly a boolean which says that the command succeeded
and secondly the chat message to send to the player.
The reason that a player name rather than a player object is passed is because
**the player might not actually be online, but may be running commands from IRC**.
So don't assume that `minetest.get_player_by_name` will work in a chat command call back,
or any other function that requires an ingame player. `minetest.show_formspec` will also
not work for IRC players, so you should provide a text only version. For example, the
email mod allows both `/inbox` to show the formspec, and `/inbox text` to send to chat.
## Intercepting messages
You can use register_on_chat_message, like so: