Getting Global Cooldown

[DrakeFish]

Hey, I did some research and didn't find any good post about it. I did find some posts about finding Global Cooldown but it's all unanswered questions. I wanted to scan wow while using a GCD hack but noticed it was all some MPQ patches or such craps, or simply some real-time memory modifier, and not an actual patch. (I did try to hook it).

So yeah, where am I supposed to find the GCD? Is it stored in the constants? In the playerbase? Where the hell is it. Thanks for any answer.

[namreeb]

I may be mistaken on this, but I believe WoW has a function to check if a particular spell can be cast. Amongst other things, it takes into account global cooldown. If you can find this function you might be able to find where to check for it.

Edit: Sorry that's rather vague. I haven't looked at it for quite some time.

[JuJuBoSc]

I got it by checking UI Frame directly, that's was huge thing to do, but it's pretty accurate.

Every *Cooldown frame object has 2 properties, the start time of the spell cooldown, and the cooldown time in milsec.
From here you can grab every spell cooldown as shown in bar, just take any spell to check global cooldown, I know it's vague, but it's hard to explain better, hope it help.

[DrakeFish]

I got it by checking UI Frame directly, that's was huge thing to do, but it's pretty accurate.

Every *Cooldown frame object has 2 properties, the start time of the spell cooldown, and the cooldown time in milsec.
From here you can grab every spell cooldown as shown in bar, just take any spell to check global cooldown, I know it's vague, but it's hard to explain better, hope it help.

I may look at this. I also though about finding some address containing the GCD length, so I could compare the timestamp on which spell started with current timestamp. I'm not familiar at all with UI in memory, but thanks for the infos.

[Cypher]

There used to be a global GCD memory address, though the last time I used it was pre-BC so I'm not even sure if it exists anymore. Depending on what you're doing it's normally easier to just call the engine functions to check whether or not an ability (or w/e you're trying to use) is usable or not.

[DrakeFish]

Yeah, I just want to know if GCD is over, (and if possible, cooldown for that spell at the same time) I tried some code I found on the forums, updated the offsets, and it doesn't seem to work, always returning true. Is there an address that shows the GCD Value? Like the exact duration of a Global Cooldown (So just the value that changes with haste, not the current remaining GCD value).

[Cypher]

Yeah, I just want to know if GCD is over, (and if possible, cooldown for that spell at the same time) I tried some code I found on the forums, updated the offsets, and it doesn't seem to work, always returning true. Is there an address that shows the GCD Value? Like the exact duration of a Global Cooldown (So just the value that changes with haste, not the current remaining GCD value).

The address I was referring to contained the time left on the GCD, measured in milliseconds. I'm not sure if there's an address that contains the current total GCD, taking modifiers into account. I doubt such a thing exists as there's no real point to it. Not all modifiers are 'static' so I wouldn't be surprised if the GCD was simply calculated on the fly when it was needed. No way to know without checking though.

Have you tried simply taking your character, doing the math necessary to work out your GCD, scanning for it, changing your gear, scanning again, etc?

[jjaa]

The lua function GetSpellCooldown does take the global cooldown into account. Just reverse that.

[Nesox]

I think this has been posted some time but i'll post it again

        /// <summary>
        /// Returns if the global cooldown is currently running.
        /// </summary>
        public static bool GlobalCooldown
        {
            get
            {
                long frequency;
                long perfCount;
                Imports.QueryPerformanceFrequency(out frequency);
                Imports.QueryPerformanceCounter(out perfCount);

                //Current time in ms
                long currentTime = (perfCount * 1000) / frequency;

                //Get first list object
                var currentListObject = ObjectManager.Wow.Read<uint>((uint)StaticOffsets.LocalPlayerSpellsOnCooldown + 0x8);

                while ((currentListObject != 0) && ((currentListObject & 1) == 0))
                {
                    //Start time of the spell cooldown in ms
                    var startTime = ObjectManager.Wow.Read<uint>(currentListObject + 0x10);

                    //Absolute gcd of the spell in ms
                    var globalCooldown = ObjectManager.Wow.Read<uint>(currentListObject + 0x2C);

                    //Spell on gcd?
                    if ((startTime + globalCooldown) > currentTime)
                        return true;


                    //Get next list object
                    currentListObject = ObjectManager.Wow.Read<uint>(currentListObject + 4);
                }

                return false;
            }
        }

LocalPlayerSpellsOnCooldown = 0xD3F5AC, // Packet_PACKET_SMSG_COOLDOWN_CHEAT+25 'mov ecx, offset dword_XXXXXX'

[_Mike]

typedef int (__cdecl *tGetSpellCooldownByID)(int, int, DWORD*, DWORD*, DWORD*);
tGetSpellCooldownByID GetSpellCooldownByID= (tGetSpellCooldownByID)0x00809000; // Spell_C__GetSpellCooldown_Proxy in the info thread
typedef int (__cdecl *tGetTimer)();
tGetTimer GetTimer = (tGetTimer)0x0086AE20; // PerformanceCounter in the info thread
DWORD cdLength=0, timeStarted=0, enabled=0, RemainingCD = 0;
GetSpellCooldownByID(<spell id>, 0, &cdLength, &timeStarted, &enabled);
if(cdLength > 0)
  RemainingCD = (timeStarted+cdLength)-GetTimer();

Call it with a no-cd instant spell to get the remaining gcd. If remaining gcd > 0 then cdLength is the total length of the gcd.
If you're silenced then it will give you that cooldown instead of the gcd. Depending on what you want that might be either good or bad

Edit:
Didn't see Nesox' post while I was writing this.. That might be closer to what you're asking for.

[DrakeFish]

Thanks a lot Nesox. I had this from the other thread bu it wasn't working. Now it does, thanks for the help!

[2$mart4me]

Very new to all of this, so hopefully my question makes sense.

I think this has been posted some time but i'll post it again

        /// <summary>
        /// Returns if the global cooldown is currently running.
        /// </summary>
        public static bool GlobalCooldown
        {
            get
            {
                long frequency;
                long perfCount;
                Imports.QueryPerformanceFrequency(out frequency);
                Imports.QueryPerformanceCounter(out perfCount);

                //Current time in ms
                long currentTime = (perfCount * 1000) / frequency;

                //Get first list object
                var currentListObject = ObjectManager.Wow.Read<uint>((uint)StaticOffsets.LocalPlayerSpellsOnCooldown + 0x8);

                while ((currentListObject != 0) && ((currentListObject & 1) == 0))
                {
                    //Start time of the spell cooldown in ms
                    var startTime = ObjectManager.Wow.Read<uint>(currentListObject + 0x10);

                    //Absolute gcd of the spell in ms
                    var globalCooldown = ObjectManager.Wow.Read<uint>(currentListObject + 0x2C);

                    //Spell on gcd?
                    if ((startTime + globalCooldown) > currentTime)
                        return true;


                    //Get next list object
                    currentListObject = ObjectManager.Wow.Read<uint>(currentListObject + 4);
                }

                return false;
            }
        }

LocalPlayerSpellsOnCooldown = 0xD3F5AC, // Packet_PACKET_SMSG_COOLDOWN_CHEAT+25 'mov ecx, offset dword_XXXXXX'

Using LocalPlayerSpellsOnCooldown = 0x00980968.

This all seems to be working, but my gcd seems to be off by anywhere from .5 seconds to 4 seconds. Each time I run WoW, I have to make an adjustment to tune the gcd using a line like this.

                    if ((startTime + globalCooldown) > (currentTime + globalcooldownadjustment))

where globalcooldownadjustment is a number I set to compensate. Once I set the number, the gcd seems to be spot on until the next time I run WoW. Is there something I am missing or not understanding? My assumption is that it has something to do with how accurate currenttime is being set.

[caytchen]

Just call WoWs PerformanceCounter. Then again, I have no idea why anyone would go to those great lengths for a lousy global cooldown.

[2$mart4me]

Just call WoWs PerformanceCounter. Then again, I have no idea why anyone would go to those great lengths for a lousy global cooldown.

My goal is to stay completely out of process. If that is the case, is my adjustment just a part of doing business out of process?

[JuJuBoSc]

Use 0x008A7F54 which is set by Wow itself to get it's PerformanceCounter value.