CenterPrint - Print centered messages

Hello there! I'm manumanucraft and I'll show you my NEW program, CenterPrint. It's very simple. You only need to use:

print <text you want to print>

I'll show you how it works.

text = tArgs[1] -- text is the 1st argument
w,h = term.getSize() -- W is the term's width
l = #text/2 -- l is the half part of the text's width
for i=1,l do
  write(" ") --Write (l value) spaces
end
write(text)
for i=1,l do
  write("  ") --(if I only put 1 space, in some cases the command   input is in the same line that the printed text)

You can use it or modify it. If you download it and/or use it for any program, PM me.

pastebin get xh84rU5E print

EDIT: I saw the reply, you have reason, but that change isn't needed. Using this you can change the background color to color all the line.

instead of relying on write's automatic word wrap, why don't you just use print(text) that way it automatically goes to the next line?

Also

write(string.rep(" ",l))

writes the amount of spaces need in one line without that for loop

In your pastebin code you're assuming that the cursor position is at x=1. If not, it wouldn't center the text correctly.
The following code -and that's 3 lines- would do just the same, but with correct centering.

local tArgs, _, yPos = { ... }, term.getCursorPos()
term.setCursorPos( math.ceil( ( tArgs[1] and term.getSize()-#tArgs[1]+1 or error( "No text given" ) )/2 ), yPos  )
term.write( tArgs[1] )

wieselkatze, on 26 October 2014 - 01:35 PM said:

In your pastebin code you're assuming that the cursor position is at x=1. If not, it wouldn't center the text correctly.
The following code -and that's 3 lines- would do just the same, but with correct centering.

local tArgs, _, yPos = { ... }, term.getCursorPos()
term.setCursorPos( math.ceil( ( tArgs[1] and term.getSize()-#tArgs[1]+1 or error("No text given") )/2 ), yPos  )
term.write( tArgs[1] )

Actually, that's going to print the first word, rather than the entire line! Better to use this:

local tArgs, _, yPos = table.concat( { ... }, " " ), term.getCursorPos()
term.setCursorPos( math.ceil( (tArgs and term.getSize()-#tArgs+1 or error( "no text given") )/2 ), yPos )
term.write( tArgs )

KingofGamesYami, on 26 October 2014 - 02:16 PM said:

wieselkatze, on 26 October 2014 - 01:35 PM said:

In your pastebin code you're assuming that the cursor position is at x=1. If not, it wouldn't center the text correctly.
The following code -and that's 3 lines- would do just the same, but with correct centering.

local tArgs, _, yPos = { ... }, term.getCursorPos()
term.setCursorPos( math.ceil( ( tArgs[1] and term.getSize()-#tArgs[1]+1 or error( "No text given" ) )/2 ), yPos  )
term.write( tArgs[1] )

Actually, that's going to print the first word, rather than the entire line! Better to use this:

local tArgs, _, yPos = table.concat( { ... }, " " ), term.getCursorPos()
term.setCursorPos( math.ceil( (tArgs and term.getSize()-#tArgs+1 or error( "no text given") )/2 ), yPos )
term.write( tArgs )

That's not true in recent versions of Computercraft. You would have a point in older versions, but now you can pass text with spaces as one argument - like so:

<program name> "This is all one argument, but with spaces included" "And this is the second one"

Wow! I have been looking for one of these for a long time! :)/> This will help A lot with many different things. Thanks ;)/>

Dragon53535, on 25 October 2014 - 09:02 PM said:

write(string.rep(" ",l))

I'd also like to add that this reduces screen flickering