Lua Programming Help Thread

It looks like in LUA the function lua_pushfstring works the same way that sprintf does in C, so you can construct your path variable before passing it to blit. I.e.

otherString = "and so is this"
lua_pushfstring(newString , "This is my string: %s", otherString)
newString = "This is my string: and so is this"

This is just pseudo code, as I've not used LUA before, just trying to be helpfull :)

Zitat:

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Zitat von Psilocybeing

It looks like in LUA the function lua_pushfstring works the same way that sprintf does in C, so you can construct your path variable before passing it to blit. I.e.

otherString = "and so is this"
lua_pushfstring(newString , "This is my string: %s", otherString)
newString = "This is my string: and so is this"

This is just pseudo code, as I've not used LUA before, just trying to be helpfull :)

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Hmmm...I actually understand that lol. I'll try something like that right now and see if it works, thanks a lot.

No go. It's telling me that lua_pushfstring is a nil value.

how do you get windows lua to report errors? whenever i have an error, the screen just pops up and closes real quick.

One other question. Is there a way that I can quote a variable? Like say I wanted to concatenate a variable, but it needed quotes around it to work. For example:

Code:

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folders=System.listDirectory()

screen:blit(0,0,"images/"..folders[1].name.."/pic.png")

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doesn't work because the folder names don't have quotes around them.

Because the table is created by LUA, I can't manually add quotes around each entry, so is there a way I could do this when blitting to the screen? Thanks again.

hello ever1 well if havent seen i've been working on a game: pspaintball and recently released v 0.1 so i want to implement wifi within the next few versions and i remeber a while back seeing sometin about lua wifi libary's now then heres my question:

A: fanjita got wifi for lua to work in 2.1+ correctly?
B:are there any tut's yet made for how to implement wifi into lua
C: if so where
D:anyway to check if it works or not as of i don't have a wifi connection spot
E: thats about it=-)

Zitat:

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Zitat von ro0kie42

how do you get windows lua to report errors? whenever i have an error, the screen just pops up and closes real quick.

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Send (open) "test.cmd" in a text editor. Add a 2nd line with the text "pause". Save file. It will look like this:

luaplayer index.lua
pause

PSPhax09, that code *should* work, but maybe the first index value of the directory isnt what you think it is. I remember when I was making LUA OS and my card became corrupted. After that, the files in the directory were literally in a random order each time. Because of this, i almost gave up because my code didnt work for it anymore. But, yeah, I got it fixed.

Anyhoo, the first 2 index values are:
.
..

The . means current directory, the .. means back 1 directory. Also, check what folder you are trying to open. (maybe print(folders[3])).
Either that, or add a space like: .. folders[3] ..

how do you randomize something?

Zitat:

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Zitat von Greenskull

how do you randomize something?

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Code:

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number = math.random(1,4) -- ""number is the variable you want to randomize, 1 and 4 are the numbers you want the random number to be between""
if number >= 2 then....
-more code here-

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