Lineage 2 Tower Forum

I created a little script that checks whether someone wrote on the chat. When I use it, it sometimes works, but I noticed that if several messages appear, the plugin crashes.

Code:

function OnChatUserMessage(chatTypechatType, nick, msg)

    if detection1 then

 if GetUserByName(nick):IsPlayer() then

 PlaySound(GetDir() .. "silent_beep.wav");

 ShowToClient("PM Guard1", "///.");

 end

    end

    if detection2 then

 if GetUserByName(nick):IsPlayer() and chatType == 2 then 

 PlaySound(GetDir() .. "silent_beep.wav");

 ShowToClient("PM Guard2", "///.");

 end

    end

end;

detection1 and detection2 are two booleans that control whether I want to check for all messages or only for whispers. ShowToClient is used here just for debugging.

Add Check if GetUserByName(nick) is not nil

Code:

function OnChatUserMessage(chatTypechatType, nick, msg)

    if detection1 then

        if GetUserByName(nick):IsPlayer() and GetUserByName(nick) ~= nil then

            PlaySound(GetDir() .. "silent_beep.wav");

            ShowToClient("PM Guard1", "///.");

        end

    end

    if detection2 then

        if GetUserByName(nick):IsPlayer() and chatType == 2 and GetUserByName(nick) ~= nil then 

            PlaySound(GetDir() .. "silent_beep.wav");

            ShowToClient("PM Guard2", "///.");

        end

    end

end;

Works if I write something on the chat. I waited for a minute and two hero messages appeared. The plugin crashed, displayed yellow in the plugins list.

if GetUserByName(nick):IsPlayer() and GetUserByName(nick) ~= nil then

ohh god why... it should be:

if GetUserByName(nick) ~= nil and GetUserByName(nick):IsPlayer() then

Sorry, I am not so good at Lua language. What does it actually do if you write GetUserByName(nick) ~= nil? Also, is there a difference in which order you write if statement's conditions?

Seems to work now.

It will First check if the player "exist", if yes it will continue doing its job

aclime

ClockMan

aclime

Sakaszli

aclime

TheBl4ckPhoenix