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Window Error

Started by ebernerd, 25 January 2015 - 03:15 AM

ebernerd #1

ebernerd's profile picture

323 posts

Location Boston, MA

Posted 25 January 2015 - 04:15 AM

Hi there.

I am writing a display API for a few programs I am working on.
Problem is I can't even get the first function to work.

Here's the code I have so far:



local display = term
local tX, tY = display.getSize()

function centerAlign(text,y)
  display.setCursorPos(tX/2-#text/2,y)
  display.print(text)
end

Every time I run the function, I get the error window:248: bad argument: double expected, got nil

Can anyone tell me what's up?

Bubba #2

Bubba's profile picture

1190 posts

Location RHIT

Posted 25 January 2015 - 04:21 AM

What are you passing into centerAlign? My guess is that you aren't passing in a y-value.

Edit: Also, term.print is not a thing

Edited on 25 January 2015 - 03:23 AM

Quintuple Agent #3

113 posts

Location This page

Posted 25 January 2015 - 04:23 AM

Also print is not a term function, use write instead.

Edit: Curse you bubba!

Edited on 25 January 2015 - 03:24 AM

ebernerd #4

ebernerd's profile picture

323 posts

Location Boston, MA

Posted 25 January 2015 - 04:25 AM

All has been cleared up by the mighty Bubba. Thank you.

Quintuple Agent, on 25 January 2015 - 04:23 AM said:
Also print is not a term function, use write instead.

Edit: Curse you bubba!

Ah, yes, thank you.