Lua problems

[jay77]

This person is supposed to spam frostbolt, without interuppting itself, or meleeing, it's also supposed to start casting right when you combat it (hence the loop) it only casts the spell once, and it then sits there, but won't melee you (good) bad is that it doesn't keep casting, why? Help +Rep!

function ScarApp_OnEnterCombat(pUnit,Event)
    pUnit:RegisterEvent("Fireball", 1, 1)
    pUnit:SetCombatMeleeCapable(1)
end

function Fireball(pUnit, Event)
    local plr = pUnit:GetRandomPlayer(0)
    if plr == nil then
    pUnit:FullCastSpellOnTarget(44202, plr)
    pUnit:RegisterEvent("Fireball_Two", 2002, 1)
    else
    end
end

function Fireball_Two(pUnit, Event)
    local plr = pUnit:GetRandomPlayer(0)
    if plr == nil then
    pUnit:FullCastSpellOnTarget(44202, plr)
    pUnit:RegisterEvent("Fireball", 2002, 1)
    else
    end
end

function ScarApp_OnLeaveCombat(pUnit, event)
    pUnit:RemoveEvents()
end

function ScarApp_Death(pUnit)
    pUnit:RemoveEvents()
end

RegisterUnitEvent(80004, 1, "ScarApp_OnEnterCombat")
RegisterUnitEvent(80004, 2, "ScarApp_OnLeaveCombat")
RegisterUnitEvent(80004, 4, "ScarApp_Death")

[Gastricpenguin]

Are you receiving any errors in world.exe?

[jay77]

Nope, but I did fix it, where it was
if plr == nil then
I changed it to
if plr ~= nil then
and it worked perfectly....

Buttttt, you did create the GUA engine, could you explain to me a little bit how that works, if you don't mind of course.
Some silly questions off the top of my head...

Do I have to save things as .gua?
Did any of the old lua functions get changed, or were just some added?
+Rep for replying as well =]!

[Gastricpenguin]

The GuaEngine is an enhanced version of the normal LuaEngine provided by the core developers, I like to create new functions that will benefit the users, making it easier to do more things with lua scripts. You don't have to change the extensions or anything.

[jay77]

If I followed a compiling guide for it, I would replace my LuaEngine with my GuaEngine? =]
Thanks again for the replying, I appreciate it

[Gastricpenguin]

Yup, that's all you have to do. If you are using the 3.1.x branch, you need to apply the .patch file first.