Lua Programming Help Thread

[k0ud]

hmm something is wrong in my psp...i dont think its the code coz it works on my friend's psp...i cant flash or copy a file from flash to ms0

i dont think its the flash coz if I copy a file from flash to ms0 i get the error msg saying "cannot find ms0:\(foldername)"

[xpack]

Try putting in a simpler place and then and folder by folder. And that method does not create folders so try making sure you have all the folders you need.

[k0ud]

i do have the folders...i tried just ms0: too it doesnt work

[Anti-QuickJay]

opps, sorry its \n

[xpack]

Try using my app FileFlasher to see if you can create backups. If not then its your psp. If you can then it may just be your code.

[Anti-QuickJay]

Whats the code your using?

[k0ud]

i can backup using pspfiler i dont think theres a problem in the code coz it works on my friend's psp
-= Double Post =-
anyway which is better LUA or C?

i study both at the same time...

[myschoo]

hmm something is wrong in my psp...i dont think its the code coz it works on my friend's psp...i cant flash or copy a file from flash to ms0

i dont think its the flash coz if I copy a file from flash to ms0 i get the error msg saying "cannot find ms0:\(foldername)"

im getting the same error but with SG57s test script its ok...

[k0ud]

im getting the same error but with SG57s test script its ok...

hmmm this is not good... we need to find a way to fix this thing in our code or psp

[myschoo]

its something to do with OUR scripts... i just tested my other older code and worked, but not new one :/

[k0ud]

hmmm scripts?...it works on my friends psp...

[myschoo]

thats strange o_O

ok i tried everything and it doesnt work -_-
thats pain
-= Double Post =-
ok i found that it cant WRITE or READ from MS... now i need to find out why...

[XxbladesfirexX]

I might sound like a n00b saying this, but how do you write lua code???

You script it, just use notepad and save it as a .lua file

[xpack]

Try redownloading another Luaplayer Mod or whatever you use. And dont forget to use "System.currentDirectory( "ms0:/whatever")" that set the psp to read from the memory stick
Dont know if that helps any

[myschoo]

nah that doesnt matter

and yeh i tried another luaplayer aswell -_-

[Anti-QuickJay]

None of them are "better" than the other, Its how you use them, I would say LUA but thats just me, Do whatever you want to do.

[PSPgamer512]

anyone wanna help me figure out this problem. I can't get a basic animation code working. when i start my game i see the character standing there but when i try to move him I get an error saying:
attempt to perform arithmetic on global 'Timer' (a table value)

[Access_Denied]

anyone wanna help me figure out this problem. I can't get a basic animation code working. when i start my game i see the character standing there but when i try to move him I get an error saying:
attempt to perform arithmetic on global 'Timer' (a table value)

Use the animation lib by Grimfate126. Google it if you have trouble finding it.

[PSPgamer512]

Use the animation lib by Grimfate126. Google it if you have trouble finding it.

thanks, i've downloaded it but ill need to extract it on my other computer, this one doesn't have winrar...

[ro0kie42]

Im not TOO Sure on this but...

file = io.open("HS.txt","w")
  highscore = "/n69 /n47"
  file:write(highscore)
file:close()

/n is a line break, So it will write

69
47

My values are stored as variables, so this doesn't work. If i have:

test1 = 41
test2 = 3 


tests = "\ntest1 \ntest2"
file:write(tests)
file:close()

it will just write test1 and test2 as strings (text). What i need is to be able to write the values of test1 and test2 to the file on separate lines.

[Fuzzie360]

My values are stored as variables, so this doesn't work. If i have:

test1 = 41
test2 = 3 


tests = "\ntest1 \ntest2"
file:write(tests)
file:close()

it will just write test1 and test2 as strings (text). What i need is to be able to write the values of test1 and test2 to the file on separate lines.

just use:

tests = "\n" .. test1 .. "\n" .. test2

It will return the variable value instead of the string

[TacticalPenguin]

Yep, it's called concatenation. To concatenate, closer the quotes and then 2 dots and then the variable name. If you wanna open the quotes again after the variable, folow it with 2 more dots and reopen the quotes.

[k0ud]

Try redownloading another Luaplayer Mod or whatever you use. And dont forget to use "System.currentDirectory( "ms0:/whatever")" that set the psp to read from the memory stick
Dont know if that helps any

doesnt work..

[SG57]

ai - By default, the CWD (current working directory) is wherever the EBOOT.PBP is. Meaning loading an image:

myimage = Image.load("image.png")

Will load image.png from where the EBOOT is. So, by changing the CWD to the root of memory stick, youd have to place image.png on the root of your PSP in order for it find and load image.png.

[k0ud]

ai - By default, the CWD (current working directory) is wherever the EBOOT.PBP is. Meaning loading an image:

myimage = Image.load("image.png")

Will load image.png from where the EBOOT is. So, by changing the CWD to the root of memory stick, youd have to place image.png on the root of your PSP in order for it find and load image.png.

yesw i know that but still it wont let me copy anyfile

[myschoo]

ai - By default, the CWD (current working directory) is wherever the EBOOT.PBP is. Meaning loading an image:

myimage = Image.load("image.png")

Will load image.png from where the EBOOT is. So, by changing the CWD to the root of memory stick, youd have to place image.png on the root of your PSP in order for it find and load image.png.

the problem is, we CANT write or read from MS...

i.e. i was in iRshell, started lua app and pressed NOTE to take screenshot, even that didnt worked... somehow it disable ALL ms0:/ functions -_-

[xpack]

Try downgrading then upgrading back to your firmware. Unless you have a copy of your flash0 before the problem. I had a problem with IRSHELL as well now when I press 'O' when listening to music my psp crashs after doing the restart psp to vsh.

[myschoo]

ok i found the problem... PROBABLY...

i think it was because i had opened 11 files...(io.open)
when i reduce the number of files to 10, it works OK...

but thanks for help anyway

[KleptoOne]

Just out of curiosity, why would you be opening 10 file simultaneously? Usual practice is to open a file, read and store the data, then close the file before opening another. If your not careful you could corrupt your mem stick.

[myschoo]

ok coz i needed file check , i didnt know exactly how to do it so i just used:

blah = io.open("file","r")
if blah then
boo = 1 else boo = 0
end

i tried to use blah:close() but if the file didnt exist, i got error...