Need some Lua help =P

[tyeeeee1]

I'm currently scripting a starting zone for my server within the instance of Scholomance, currently I've run into a small roadblock. I've attempted to figure out how to do range checks to stop the player from advancing to far into the dungeon but it doesn't seem to work, although I did managed to get it working once (but that was a few versions ago so I can't go back to that version of the script).
If anyone has a few minutes to look over my script to see what I did wrong it would help =)

[Lua] -- This script was created with the help of Rotchet2, Crow, and Bjarke local - Pastebin.com

The range check function is initialized on line 27 and the function itself is on line 152.

[stoneharry]

Try this:

function CheckIfInRange_Whitemane90003(Whitemane)
	local player = Whitemane:GetClosestPlayer()
	local unit = Whitemane:GetCreatureNearestCoords(262.055908, 64.339806, 109.901627, 29138)
	if unit == nil then
		print("ERROR : unit is null in CheckIfInRange_Whitemane90003 function.")
		return
	end
	if player == nil then
		print("ERROR : nearest player was null in CheckIfInRange_Whitemane90003 function.")
	end

	local distance = unit:GetDistanceYards(player)

	if player:HasQuest(90003) and distance <= 5 then
		Whitemane:RegisterEvent("Necromancer1_Whitemane90003", 2000, 1)
	else if (not player:HasQuest(90003)) and (distance <= 5) then
		Whitemane:SendChatMessage(42, 0, "A strange force prevents me from advancing further.")
		player:MovePlayerTo(262.464417, 37.656471, 115.727440, 1.565179, 256, 0)
	end
end

[tyeeeee1]

Ah, thanks for the revision. The range check works as intended now and I've also learned how to do error checks thanks to your script.

[stoneharry]

I missed a return in my second error check.

Return just makes the function stop there (as if it was a end) and return to where it was. This also allows you to return values:

return 0

Then you can do:

if function(unit) == 1 then

And you tell it to return 0, or return 1, depending on where it gets to.