move speed?

[Auntie Mangos]

spell_work is a utility, orignally created by DisLord (a.k.a. Chestr ). He no longer develops or maintains this program, but did release the source code so others may continue work upon the code.

Put briefly, spell_work is used for reading and comparing spell data from the client DBC files and server database. Perhaps someone having more experience with this tool can provide a more complete description.

It has been ported to C# and is currently maintained by LordJZ and Konctantin. Here's a link to the thread... http://getmangos.eu/community/topic/13617/spell-work-in-c/

[forlornsoul]

hi, i just started investigating magos out of curiosity, and i'm having trouble.

i've been looking at character.data and found that most of the stats and info on character are stored here.

then, i've noticed that "move speed" of characters aren't available on that file.

where can i find this data?

[Patman128]

It is not stored anywhere, it is part of Unit, and is initialized in Unit::Unit

    for (int i = 0; i < MAX_MOVE_TYPE; ++i)
       m_speed_rate[i] = 1.0f;

[forlornsoul]

hey, patman. thanks for the reply.

i'm guessing MAX_MOVE_TYPE would be a number around 3, for normal, ground mounts and aerial mounts.

if so, if one gets debuffed by some skill and his move speed reduces to 40%.

where is that applied to? m_speed_rate?

this is why i've been thinking move speed of characters would be stored somewhere.

[lecails]

hey, patman. thanks for the reply.

i'm guessing MAX_MOVE_TYPE would be a number around 3, for normal, ground mounts and aerial mounts.

if so, if one gets debuffed by some skill and his move speed reduces to 40%.

where is that applied to? m_speed_rate?

this is why i've been thinking move speed of characters would be stored somewhere.

Yes, its stored in the DDR server , when the player enter in the game, the speed rate its initialized and its will changed over time.

So the m_speed_rate change when you mount or when you debuffed,there are some function which set speed_rate.

Its why m_speed_rate is a variable .. lol

[Patman128]

i'm guessing MAX_MOVE_TYPE would be a number around 3, for normal, ground mounts and aerial mounts.

It's actually 9.

enum UnitMoveType
{
   MOVE_WALK           = 0,
   MOVE_RUN            = 1,
   MOVE_RUN_BACK       = 2,
   MOVE_SWIM           = 3,
   MOVE_SWIM_BACK      = 4,
   MOVE_TURN_RATE      = 5,
   MOVE_FLIGHT         = 6,
   MOVE_FLIGHT_BACK    = 7,
   MOVE_PITCH_RATE     = 8
};

Normal/ground mounts are MOVE_RUN, aerial mounts are MOVE_FLIGHT, but they are changed by many things.

[forlornsoul]

Yes, its stored in the DDR server , when the player enter in the game, the speed rate its initialized and its will changed over time.

Would I sound stupid to ask what DDR server is? I really need a lot of studying......

[lecails]

Yes, its stored in the DDR server , when the player enter in the game, the speed rate its initialized and its will changed over time.

Would I sound stupid to ask what DDR server is? I really need a lot of studying......

See here for more explication and if you have some other question, we are here .

[forlornsoul]

i've been trying to read some source codes to find out where movement debuffs are applied.

so far, i've found out that speed is initialized in Unit.cpp thanks to patman128, and MotionMaster.cpp holds info on

confusedmovement, fleeingmovement, etc but i think these are for creatures only? not sure about this.

and from Spell.cpp and SpellEffects.cpp i can see that a lot of effects on movement are coded here, such as knockbacks, pulls, leapbacks and stuff.

but i've been unable to find stuff on pure movement speed.

for example, if a warrior uses 'hamstring' and the target gets 40% off his movement speed. where can i find the code that says this?

[Patman128]

Looking at Hamstring (Rank 1) in SpellWork, it says that it has Effect 1: Id 6 (SPELL_EFFECT_APPLY_AURA) with Aura Id 33 (SPELL_AURA_MOD_DECREASE_SPEED), value = -40. Looking up SPELL_AURA_MOD_DECREASE_SPEED in mangos reveals that it is handled by Aura::HandleAuraModDecreaseSpeed. In Aura::HandleAuraModDecreaseSpeed:

void Aura::HandleAuraModDecreaseSpeed(bool apply, bool Real)
{
   // all applied/removed only at real aura add/remove
   if(!Real)
       return;

   Unit* target = GetTarget();

   target->UpdateSpeed(MOVE_RUN, true);
   target->UpdateSpeed(MOVE_SWIM, true);
}

[faramir118]

In addition to the above, you can get more information on auras and their effects by

• looking up the spell on a wow data site (like this: http://old.wowhead.com/spell=1715)
  
• using the .list auras on a creature
  
• finding/using a dbc spell viewer
  

[forlornsoul]

thanks again patman. i've been doing some more research on it, and have gotten to aura_mod parts myself as well.

now i see that movement speed is forced by object->updateSpeed(). can't believe this took me a week!!

one last question... what is spellwork? is it a website? i've googled it, searched source codes, but came up with unhelpful results...

[forlornsoul]

i don't seem to have the right spell.dbc file. it says that the number of rows don't match... hmm............

[Unkle Nuke]

You must make sure the version of spell_work you are using matches your client version.

Every new client expansion or patch means spell_work must change to operate correctly.