When attempting the level Wizard’s Door using the LUA language, I cannot get the number from Laszlo. I can get his instructions, so know what to do with it to get the next number.
I use the following code but the line ‘local secret2 = secret+7’ gives the error “Attempt to perform arithmetic on a null value: undefined”
--# Move to Laszlo and get his secret number. self:moveXY(30, 13) local secret = self:findNearestFriend().getSecret() --# get instructions self:say("Secret?") --# Follow Laszlo's instructions to get Erzsebet's magic number! --# Move to Erzsebet and say her magic number. local secret2 = secret+7 self:moveXY(17, 26) self:say(secret2)
(edited to format code correctly)
@Luke10 I have already given a complete explanation of the issue above, including the error message.
The code (which should give you the number to use for the rest of the program):
local secret = self:findNearestFriend().getSecret()
does not populate the secret number (the value of the variable is null). This means when I try to use the value later in the code, it throws an error as you cannot add a number to a null value. (I work as a programmer so I know WHAT the issue is, but obviously I can’t fix it as it is an issue with the level)
But here is all of the information in my above post as a screenshot, since you asked for it
Just to add, when I run the same level using Javascript, it works correctly (and I can pass it); it is only LUA that is not populating the secret number correctly.
Exactly the line I identified in both of my messages above Line 8 in the screenshot. Thanks for trying to help, but it is not a syntax problem with my code. It is a bug with the level not populating the secret number in line 4 when using LUA. I have done the same level in Javascript and it populates the value correctly.
I know that this topic is solved but you didn’t exactly define what line the issue was on. Most people probably wouldn’t be able to understand 'local secret2 = secret+7
Hey Luke, that’s why I posted the code along with it which contains the comments that the template provides… and followed up with the screenshot which highlighted the line. The error wasn’t with that line though (as I explained at the time), it was with line 4, which was part of the sample code.
Nevermind, it is sorted now, and a patch submitted to fix it for the future.
Line 8 in the screenshot. Thanks for trying to help, but it is not a syntax problem with my code. It is a bug with the level not populating the secret number in line 4 when using LUA. I have done the same level in Javascript and it populates the value correctly.