Coding Help

Hi All,

I am pretty new to addon coding. I am a Computer Science Major particularly in the application development side of things I have two questions: 1. Is there a way to have an addon detect if the player has come in/out of stealth?

2. Is there any really good tutorials on WoW addon Development?

Thanks

Rearadmiral (Black Dragonflight, US)|||Do you mean yourself or someone else? If you mean yourself then you might be able to check using UnitBuff(unit, buffIndex)

http://www.wowwiki.com/API_UnitBuff


Code:

name, rank, iconTexture, count, duration, timeLeft =  UnitBuff(unit, buffIndex)

Where the name or the icontexture matches what you are looking for. If you mean someone else then I don't think you can unless you are targeting them.|||Thanks Jumpy I am trying to detect when I myself go stealth. Let me explain what I am trying to do. I want to detect when I go stealth as my druid so that I can automatically switch the bar pages, kinda like a rouges bars change but for some reason bliz just didn't do for a druid stealth.

Here is what I have so far:


Code:

function CatBar_OnLoad()
 DEFAULT_CHAT_FRAME:AddMessage("CatProwlBar Loaded");
end

function CatBar_OnEvent()
  if IsStealthed() == 1 then 
    ChangeActionBarPage(2);
  end
  if IsStealthed() == nil then
    ChangeActionBarPage(1);
  end
end

My function works. If I am in game and I type "/script CatBar_OnEvent();" it will switch the page accordingly. I need it to run that function when I go stealth or come out of stealth.|||If there is no event to trigger a function then you sometimes have to use OnUpdate in your xml to drive the function.

At the top of your Lua program you need to have


Code:

local CatBar_LastTime = 0

Then this function is pointed to by your xml.


Code:

function CatBar_Timer(elapsed)
 CatBar_LastTime = CatBar_LastTime + elapsed
 if CatBar_LastTime >= .5) then -- for half second intervals
 CatBar_LastTime = 0
      if IsStealthed() == 1 then 
             ChangeActionBarPage(2);
             end
             if IsStealthed() == nil then
             ChangeActionBarPage(1);
             end
 end
end

In your frame xml, in the Scripts section you have


Code:

<Scripts>
     <OnUpdate>
   CatBar_Timer(arg1)
     </OnUpdate>
     **** other scripts ***
</Scripts>

|||You may also be able to use events such as "CHAT_MSG_SPELL_PERIODIC_SELF_BUFFS", "CHAT_MSG_SPELL_PERIODIC_FRIENDLYPLAYER_BUFFS" and "CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_BUFFS". I'm guessing the first one will work for self buffs thought I haven't personally tested it. Arg1 will return the combat text chat, so if you know what effect to look for, you should be able to trigger a function when the event is fired without necessarily having to resort to a timed OnUpdate check (which should work as well).|||Thanks BTW guys for all of your input but I still cannot get it working, and it may just be me at this point but this is what I got:

CatProwlBar.lua


Code:

local CatBar_LastTime = 0

function CatBar_OnLoad()
  DEFAULT_CHAT_FRAME:AddMessage("CatProwlBar Loaded");
end

function CatBar_Timer(elapsed)
  CatBar_LastTime = CatBar_LastTime + elapsed
    if CatBar_LastTime >= .5 then -- for half second intervals
      CatBar_LastTime = 0
      if IsStealthed() == 1 then
        ChangeActionBarPage(2);
      end
      if IsStealthed() == nil then  
        ChangeActionBarPage(1);
      end
    end
end

CatProwlBar.xml


Code:

<Ui xmlns="http://www.blizzard.com/wow/ui/"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.blizzard.com/wow/ui/ ..\FrameXML\UI.xsd">
   <Script file="CatProwlBar.lua" />
   <Frame name="CatFrame" hidden="true">
     <Scripts>
      <OnLoad>
        CatBar_OnLoad();
      </OnLoad>
      <OnUpdate>
       CatBar_Timer(arg1);
      </OnUpdate>
     </Scripts>
   </Frame>
</Ui>

Thats what I got and still nothing, the only sign I have that the addon is actually working is the fact that I can call the the functions and the Message "CatProwlBar Loaded" shows up when I load in. I am hopeless|||OnUpdate wont run if the frame is hidden. Change the hidden value of the frame to false.|||You may also try :

CatProwlBar.lua


Quote:




function CatBar_OnLoad()

DEFAULT_CHAT_FRAME:AddMessage("CatProwlBar Loaded");

this:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_SELF_BUFFS");

this:RegisterEvent("CHAT_MSG_SPELL_AURA_GONE_SELF");

end

function CatBar_OnEvent()

if (event == "CHAT_MSG_SPELL_PERIODIC_SELF_BUFFS") and arg1 == "You gain Prowl." then

ChangeActionBarPage(2);

end

if (event == "CHAT_MSG_SPELL_AURA_GONE_SELF") and arg1== "Prowl fades from you." then

ChangeActionBarPage(1);

end

end




CatProwlBar.xml


Quote:




<Ui xmlns="http://www.blizzard.com/wow/ui/"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.blizzard.com/wow/ui/ ..\FrameXML\UI.xsd">

<Script file="CatProwlBar.lua" />

<Frame name="CatFrame" hidden="true">

<Scripts>

<OnLoad>

CatBar_OnLoad();

</OnLoad>

<OnEvent>

CatBar_OnEvent();

</OnEvent>

<OnUpdate>

</OnUpdate>

</Scripts>

</Frame>

</Ui>|||OMG thanks Dinnerbone and Jumpy. As soon as I clean it up some, it will be on the site. You guys will get most of the credit :P.

Thanks Again|||Bad News, I have uncovered a bug. Whenever I leave stealth by using an attack (ie Pounce) my bar does not switch back. Any Ideas?