Help: Make an NPC channel a spell.

[Nicholax80]

I need some help here. I'm a newer server owner, and I'm trying to figure out how to make an NPC channel a spell, as decoration, so to speak. You see, I've got a custom area, and a Dalaran bubble spawned, covering this place. What I'm trying to get, is the 4 mages I have spawned in the right places, to look like they're channeling a spell to keep that bubble up.

I've been trying and can't figure it out. If someone could make an Lua script for me, or guide me through my HeidiSQL to accomplish it there, that would be great.

I'm using a Kirin Tor Battle-Mage (Entry = 91011)

+Rep to all who try to help me.

---------- Post added at 01:55 PM ---------- Previous post was at 12:43 PM ----------

I have this so far, and I'm getting an error.

---------------------------------------------

function NPCCHANNEL(91011, event)
if(unit:GetClosestEnemy()~=nil) then
unit:ChannelSpell(47855, unit:GetClosestEnemy()) -- Drain Soul
end
end

-------------------------------------------------

I'm getting,

scripts/Channeling.lua:1: <name> or '...' expected near '91011'

So, what needs to be fixed?

[Pharcide]

function NPCCHANNEL(91011, event)

you can't have just a value as a function parameter, if you want to send it 91011, have the function take in an int or whatever the Lua equivalent is, and pass it 91011

[Nicholax80]

Ok I'm not so great with Lua language, lol. Please, give me an example.

I +Rep 'ed you already.

[stoneharry]

function NPCCHANNEL(unit, event)
    unit:ChannelSpell(47855, unit:GetCreatureNearestCoords(x,y,z,entryid)
end

RegisterUnitEvent(91011, 18, "NPCCHANNEL")

Change x, y, z to the position of the creature your trying to channel on and the entryid to the creature your trying to channel on.

To channel to a location simple make a invisible creature (displayid 4, scale 0.01), move him to where you want (.way addfly) then /target nameofcreature and do .mod flags -10. This makes the creature invisible at the location, then you can channel to that creature and it will look like that position.

[Pharcide]

nvm, do what stoneharry said

[Nicholax80]

Thanks, stoneharry. I gave you rep. Now to see if this works.

[stoneharry]

I missed a ) on the end of it btw. It should be:

function NPCCHANNEL(unit, event)
    unit:ChannelSpell(47855, unit:GetCreatureNearestCoords(x,y,z,entryid))
end

RegisterUnitEvent(91011, 18, "NPCCHANNEL")

[Nicholax80]

I made the changes and am loading it up now, but even yet, before the changes, the error came up in my World.exe and says

scripts/Channeling.lua:1: <name> or '...' expected near '91011'

---------- Post added at 02:38 PM ---------- Previous post was at 02:37 PM ----------

Well, loading it this time, the World.exe did not give me that error. Lets see if this worked. *Praying* lol

---------- Post added at 02:40 PM ---------- Previous post was at 02:38 PM ----------

Ok so the script was loaded and what-not, but the npc's are still not doing anything.



---------- Post added at 02:41 PM ---------- Previous post was at 02:40 PM ----------

function NPCCHANNEL(unit, event)
unit:ChannelSpell(47855, unit:GetCreatureNearestCoords(5260.15,-2162.73,1260.70,7395))
end

RegisterUnitEvent(91011, 18, "NPCCHANNEL")

[stoneharry]

function zegeaygeaygeaa(unit, event)
    unit:RegisterEvent("test_Test_test_onetwothree", 2500, 0)
    --unit:ChannelSpell(47855, unit:GetCreatureNearestCoords(x,y,z,entryid))
end

function test_Test_test_onetwothree(unit)
    local plr = pUnit:GetClosestPlayer()
    if plr ~= nil then
    unit:RemoveEvents()
    unit:ChannelSpell(47855, plr)
    end
end

RegisterUnitEvent(91011, 18, "zegeaygeaygeaa")

Test that.

[Nicholax80]

Are there things in that script that I need to change?

[stoneharry]

Are there things in that script that I need to change?

No. That script gets your npc (91011) and then when it spawns every 2.5 seconds checks for a nearby player, if it finds one it stops checking and channels the spell on them.

This allows you to check whether the spell actually channels properly.

[Nicholax80]

Alright it loaded. Testing now.

It's not working.

NOTE: This is repeating in my World.exe

scripts\channeling.lua:7: attempt to index global 'punit' <a nil value>

[stoneharry]

Sorry, force of habbit.

Change line 7,
from: pUnit:GetClosestPlayer()
To:
unit:GetClosestPlayer()

edit: or just use this script:

function zegeaygeaygeaa(unit, event)
    unit:RegisterEvent("test_Test_test_onetwothree", 2500, 0)
    --unit:ChannelSpell(47855, unit:GetCreatureNearestCoords(x,y,z,entryid))
end

function test_Test_test_onetwothree(unit)
    local plr = unit:GetClosestPlayer()
    if plr ~= nil then
    unit:RemoveEvents()
    unit:ChannelSpell(47855, plr)
    end
end

RegisterUnitEvent(91011, 18, "zegeaygeaygeaa")

[Nicholax80]

Testing that now. World.exe is loading.

---------- Post added at 03:03 PM ---------- Previous post was at 03:00 PM ----------

RegisterUnitEvent(91011, 18, "zegeaygeaygeaa")


Where does that go?

[stoneharry]

Testing that now. World.exe is loading.

---------- Post added at 03:03 PM ---------- Previous post was at 03:00 PM ----------

RegisterUnitEvent(91011, 18, "zegeaygeaygeaa")


Where does that go?

Bottom of the script.

The RegisterUnitEvent tells the server your registering a script for a unit, and then you follow with the npc id, type of event and the name of the function that it's going to trigger. Event 18 = on spawn, so on spawn the function is called and the script starts... This is basic stuff, you should have read a guide or two before trying to script Lua to be honest.