3 Silly Questions, for the Price of None!

[Sillyboy72]

Hey Party Fans --

1) How do I know if I am clear to start casting? not already casting, not in global cooldown, I suppose not stunned, etc.

2) okay, okay... don't beg! If you really want me to continue begging for info... how do I check if my target has a specific buff/spell on them? (are you lifebloomed, rejuved, mark of the wilded). I tried taking a look at the UnitAura in IDA, but I became very concerned that my head would assplode.

3) Lastly... what's the easiest way to control my bot via the wow cmdline? like /bot start-fishing. I saw some references to (uhh... terminology is escaping me but) registering a callback w/ lua, but that seems hairy Can I just grab the text in the console window (and my addon can just ChatFrame1:AddMessage random crap that my bot polls for).

Thanks for any helpies.
-Silly

[luciferc]

1) for stuns read debuffs not sure about casting

2) i wish i knew but i never looked into it (i think ur trying for a healbot)

3) Like a CMD promt?

string line = Console.ReadLine();
if (line == "saveall")
{

[Sillyboy72]

1) for stuns read debuffs not sure about casting

2) i wish i knew but i never looked into it (i think ur trying for a healbot)

3) Like a CMD promt?

string line = Console.ReadLine();
if (line == "saveall")
{

Ya, want a heal bot.

And sorry for some lack of clarity there... I am talking about the actual WoW console window (where you /say I Rock!)

[jbrauman]

1) How do I know if I am clear to start casting? not already casting, not in global cooldown, I suppose not stunned, etc.

To check if you are stunned or incapacitaed you will need to read the buffs / debuffs of the object (not sure how to do.) To check if you are in the global cooldown, why not just make sure you have waited 1500ms (+ some for the lag) after the last spell cast? I'm not sure how to check if you are already casting but perhaps this will help:

[07:14:50]: UNIT_FIELD_CHANNEL_OBJECT = 0x14

[Sillyboy72]

Well, the more typical problem is casting a (typically) 3 second long spell ... but getting spanked my mobs making it 4 seconds. Or putting on a bunch of haste gear, and making is 2.8 seconds. Using straight time, just isn't great.

The channel field only seems to apply when... channeling (arcane missiles), but not during a long cast (fireball).

So, trying to be a good little hacker, I was doing some digging. Secretly I am hoping to see green text saying "why not just do x!?"... as a reward for at least trying ;-)

Okay, so starting at the hot lua function IsCurrentSpell (004D2AB0). Stepping through in the debugger it eventually calls:

004D2B19 call sub_76C210

That sub (sub_76C210) seems to returns 1 and 0, which is nice of it Tracing into that bad boy a bit, we get to...

0076C251 call sub_76C110

And *that* function is pretty straight forward and apparently the heart of the matter. Doing a rough translation from asm to c (cuz that's how I roll...) you get:

BYTE __cdecl sub_76C110(int SpellId)
{
  int *eax = 0xFF2538;

  if ( *eax & 1 || !*eax )
    eax = 0;

  while ( !(eax & 1) && eax )
  {
    if ( *(_DWORD *)(eax + 0x20) == SpellId )
      return 1;

    eax = *(_DWORD *)(eax + 0x4);
  }

  return 0;
}

Which is to say 0xFF2538 points to some sort of list of items. ItemBase+0x4 is a next pointer. ItemBase+0x20 is a spell id. And if you can your spell id shows in the list... you are currently casting it.

Why a list? I have no freakin idea. You can only cast 1 spell at time. <boggle>.

Still, at least I can call this function repeatedly to know when I am done casting...

I think
-Silly

EDIT: Just an update that I am now calling this function to know when I am done casting the current spell, and it works great!

[Harland]

I still haven't had any luck trying to find what buffs I have on I'm not sure how bobbysing does it, I tried reading his WoWX source but with no prevail.

Here are some of the functions he uses, my problem is I don't know how to get the dwStorage of an object.

bool CGUnit_C::HasAura( unsigned long dwSpellID )
{
    for( int i = 0; i < 80; i++ )
    {
        unsigned long dwCurSpellID = GetAuraSpellID( i );

        if( !dwSpellID || dwCurSpellID == dwSpellID )
            return true;
    }

    return false;
}

UNIT_FIELD_AURASTATE = 0xD8,

unsigned long CGUnit_C::GetAuraSpellID( unsigned long dwIndex )
{
    return GetKnownField( UNIT_FIELD_AURASTATE + dwIndex * 4 );
}

unsigned long CGObject_C::GetKnownField( unsigned long dwField )
{
    return *(unsigned long*)( dwStorage + dwField );
}

If anyone has any ideas or could point me to a forum post that has already been made elsewhere let me know.

[RiseAndShine]

Buffs start at Object + 0xE34. So just do something like that:

public const int OBJ_UNIT_FIRST_BUFF = 0xE34;

        public bool hasAura(uint obj, uint auraID)
        {
            for (int i = 0; i < 80; i++)
            {
                uint curAura = Memory.ReadUInt(hProcess, obj + OBJ_UNIT_FIRST_BUFF + (i * 4));
                if (curAura == auraID) return true;
            }
            return false;
        }

You can find the Spell-IDs on Thottbot, for example Stamina would be 48161. (Power Word: Fortitude - Thottbot: World of Warcraft)

[Harland]

Cheers RiseAndShine, I'll check that out now and see how it goes.

Edit: You are a legend worked like a treat .

[Sillyboy72]

Awesome, thanks. Indeed alot of good info in that memory region.

I could see HoT's showing up in the list (nothing like stack count, but still cool), and even some freaky "talent" related stuff I wouldn't have expected.

Cross faction mostly seemed to work, could see "grace", "rapture", "see invis", "divine aegis" on the priest I clicked. Pretty hot to see talent related stuff cross faction.

btw, if you want to convert from spellid to spellname inside wow, just use GetSpellInfo(id)

When fighting mobs, I didn't see spells showing up here (like roots, and DoT's).