OoP - IsSpellReady problem

[kajko]

Hi all,

At the moment I am using following code to check is spell ready to be cast:

	struct _spellInfo
	{
		uint spellId;		// 8
		uint _d12;			// 12
		uint startTime;		// 16
		uint cooldown1;		// 20
		uint _d24;			// 24
		uint _d28;			// 28
		uint cooldown2;		// 32
		uint _d36;			// 36
		uint _d40;			// 40
		uint GlobalTime;	// 44
	};

	bool Manager::IsSpellReady(int spellidToCheck)
	{
		_spellInfo inf;

		__int64 frequency;
		__int64 perfCount;
		QueryPerformanceFrequency((LARGE_INTEGER*)&frequency);
		QueryPerformanceCounter((LARGE_INTEGER*)&perfCount);
		//Get first list object
		uint currentListObject = m_pMemMan->Read<uint>(m_pMemMan->dwBaseAddress + WOW_SPELL_CoolDown + 0x8);
		while ((currentListObject != 0) && ((currentListObject & 1) == 0))
		{
			m_pMemMan->Read((BYTE*)(currentListObject + 0x8), (BYTE*)&inf, sizeof(_spellInfo));
			if (inf.spellId == spellidToCheck)
			{
				if (inf.GlobalTime > 100000)
					inf.GlobalTime = 0;

				uint GlobalCooldown = inf.cooldown1 + inf.cooldown2;
				uint cooldownLength = max(GlobalCooldown, inf.GlobalTime);

				//Current time in ms
				uint currentTime = uint((perfCount * 1000) / frequency);
				if ((inf.startTime + cooldownLength) > currentTime)
					return true;

				return false;

			}
			currentListObject = m_pMemMan->Read<uint>((BYTE*)(currentListObject + 4));
		}
		
		return true;
	}

but having problem as it does not work reliably.
Maybe some one can see what is a problem with this approach ?

Also, as I am working out of process is there any other way to reliably check is spell ready to be cast or not, or better yet, can I somehow check what was it that I cast last ?

Thanks,
Kajko