Game keeps trying to subtract 0

[opal jetty]

I'm working on a tycoon game and have the basic buying coded how ever I want to have the first button set to be free so i set the price as 0 problem is the equation I have to subtract from players cash it out puts an error about how it can't subtract from 0. So I go to fix the problem but whenever I attempted an If else statement the script freaks out and Multiple errors pop up that don't actually when I investigate them.

[old dove]

make an if statment

[opal jetty]

the most stable solution I've found but I'm not sure how to resolve when the Price equal to or less than 0

[leaden niche]

Can we see those errors?

[old dove]

bro

[leaden niche]

no reason to have the else there

[old dove]

just say if price >= 0 then give the tycoon item

No need to subtract 0

[opal jetty]

if i remove the else it breaks something in a completely different place

[old dove]

You dont need it

[leaden niche]

Then lets see the whole script as something else is broken

[leaden niche]

Also, why is it bad that it subtracts by 0? It won't change the value

[opal jetty]

07:35:24.561 ServerScriptService.TycoonHandler:52: attempt to perform arithmetic (sub) on number and nil

that

it only happens if the price is set to 0

[leaden niche]

If you couldn't subtract by 0 that'd be awful.

Can you print out what value is before you subtract

[lethal veldt]

no, that means you're doing number - nil

which is in fact performing an arithmetic sub on number and nil

[opal jetty]

it's trying to subtract 0 from the leaderboard, lua can't subtract by 0

[lethal veldt]

no, read the error

there is something in your code that is making that you're subtracting nil to a number

[opal jetty]

The error does not occur if price value I have set for the button is not zero, if only occurs if the price I have set on the button is zero.

[dreamy goblet]

** You are now Level 1! **

[lethal veldt]

that is not what I'm talking about, the error is what it is, and it is saying you're subtracting nil to a number

check that out

[opal jetty]

Nil is 0

[fleet oar]

💀

[lethal veldt]

no

[leaden niche]

nil is not 0, no language does that

0 is by definition not nil

[sharp meteor]

Just give the full code

[opal jetty]

there

[clear parcel]

Have it print(Price) before subtracting it. If that prints Nil, then just add a if not Price then Price = 0 end

[dreamy goblet]

** You are now Level 3! **

[opal jetty]

print(Price) if Price ~= nil then Price = 0 would this work to convert nil to zero

[leaden niche]

The price subtraction is outside of the check to see if Price (which is an attribute) is even there

That could be why it's subtracting nil

[leaden niche]

No, as that'd set Price if Price isn't nil

you can just do Price or 0 instead, so if Price is nil, it'd choose 0 instead

[opal jetty]

putting the equation in there breaks the the spawn code for the buttons

[leaden niche]

Well where are you putting it and what are you doing with it

You'd get the price like local Price = button:GetAttribute("price") or 0

[opal jetty]

just tried that, it just prints 0 in output now

[leaden niche]

But like what are you printing and where? Are you saying no buttons have a price that's not 0?

[opal jetty]

the one and only button's price is 0 it has been set to this whole time, it for no explainable reason is reading that 0 as nil

[leaden niche]

okay, so did you use the or 0 thing? If you did, show me the code where you did

[opal jetty]

ugh I think I found figured it out, lua is case sensitive the number on the button is under price with an uppercase P and it want's price withe a lower case p... im going to do somthing

[leaden niche]

I don't think I've heard of a programming language where capitalization didn't matter

but yes that's a major issue.

[opal jetty]

hold on let me test it now that ive fixed that

[dreamy goblet]

** You are now Level 2! **

[clear parcel]

Well does it work

[opal jetty]

nope

it just prints 0

[clear parcel]

There aren’t any prints in that code, are you sure you’re looking in the right place?

[leaden niche]

You don't need to check if Price is nil anymore, so you can get rid of the if Price then statement

[opal jetty]

i look in the output when i test and it just says 0 x amount of times

[leaden niche]

Do you even know where the print is?

[opal jetty]

thats not what that was for

[clear parcel]

The print will probably show what line it’s from, go look there

[opal jetty]

i somehow fixed it the problem on my own

i undid something and now no errors, no clue what

I hate lua

[leaden niche]

I mean this is just programming in general lol, you're going to create bugs and fix bugs then make more bugs

[opal jetty]

https://tenor.com/view/this-is-fine-gif-10093852890875433850

im.. im going to bed

[fervent bronze]

instead of buying the free upgrade. why not remove the entire buying idea and just trigger the upgrade right as its touched??