Lua Programming Help Thread

[hibbyware]

I had the same problem but managed to find a work around,

[Judas]

err... except that sometimes, it does. sometimes it acts like the files aren't even there.

Really? I've been told over and over again that it's a simple attribute that the PSP doesn't even recognize.

Well, in that case, go into Windows, and uncheck the hidden attribute. Then compare the hidden and shown file to find how to remove the attribute. (Then again, that would probably be easier in C.)

[hibbyware]

I thought that the folder attribute was not the problem and that it was the read only file attribute of some files that caused the problem,

[Mr_Shizzy]

Last night, I removed the "read only" and "hidden system file" attributes (from the .prx files in flash0:/vsh/module") with PSPFiler, and my script still will not recognize them...

Any ideas??

[hibbyware]

Last night, I removed the "read only" and "hidden system file" attributes (from the .prx files in flash0:/vsh/module") with PSPFiler, and my script still will not recognize them...

Any ideas??

This is not a safe way to do it but...

Before over writing the file in flash0 I check there is a replacement to be flashed,

If it exists I delete the file in flash0 then write my replacement,

This was the only way I could get around the problem and I did not look into changing file attributes,

Also I don't do lua and I did this using C,

[Mr_Shizzy]

I'll look into this hibby.
I'm not sure if LuaPlayer will even be able to find it to delete it.

I'm currently learning the C basics. (Trying to get away from this lua stuff)
But in the meantime, I wanted to throw a quick theme switcher for 3.80 M33.

(I change themes a lot) :P

[hibbyware]

Does lua have any dirent functions?

You could try printing the contents of the module folder or do a file exists check to see if lua can see them,

I had several problems getting a file to flash using C,

I have found that 0x800 works well for this but not sure how lua sorts out it's module mode,

[Mr_Shizzy]

^^^ I'll try that.

I just tried removing paf.prx from module folder (no worries- I got a DC4)
It says it done it successful, but it doesn't actually remove it...

EDIT:
Is there any src to a basic (C) 3XX flasher kicking around ?
Maybe I could study that, and just forget doing it in Lua...

A 1.5 flasher in C is cake, but this .prx building (for 3xx kernel functions) is a little confusing to me (I'm still a C newb )

[hibbyware]

What module mode does the lua player use?

It sounds like the module mode is not correct,

I had the same thing happen when using the wrong module mode,

It would say it was successful but never really did anything to the file,

[Mr_Shizzy]

Not sure, but I can upload the src.
Hold on...

src:
http://rapidshare.com/files/86354874...yer_20_src.rar

makefile:
http://www.mediafire.com/?ems20mmn1ly

[hibbyware]

Well it says...

PSP_MODULE_INFO("LUAPLAYE R", 0x1000, 1, 1)

So that's in kernel mode,

I had problems flashing some files using this mode but Pirata Nervo said he managed to flash files using it,

[Mr_Shizzy]

Yes, I was having trouble compiling it, so Pirata Nervo kindly edited the makefile for me...

although the damn thing still wont compile for me, as it keeps giving me errors in cygwin...

Spoiler for cygwin error:

So no, the lua player mod I'm actually using now, is running in 1.5 kernel...


EDIT: I just noticed looking over the error, that it looks as if I was trying to recompile [email protected]'s lua recompile source ??
I'll try to recompile it with the .16 version of lua player...



EDIT #2 I think my cygwin is not set up correctly...
I used [email protected]'s "newb proof" set up... Damn...

[hibbyware]

cygwin is a pain in the arse sometimes,


As for the error in sound.cpp it has...

#include "mikmod.h"

but I can not find it in the source that you uploaded after searching for the file,

[FaT3oYCG]

cygwin is a pain in the arse sometimes,


As for the error in sound.cpp it has...

#include "mikmod.h"

but I can not find it in the source that you uploaded after searching for the file,

change it to <mikmod.h>

[Mr_Shizzy]

^^^ OK, thanks guys.
[email protected] - I changed that, but now ended up with this error:

Spoiler for New Error:

[hibbyware]

#include "mikmod.h" appears in more then one file so it may be worth changing it in all the files,

Like sound.h etc

[Mr_Shizzy]

^^^ Did that... Still no luck.

This is frustrating...

[hibbyware]

Yeah I'm sure somebody here could figure it out,

I just don't understand why it says #include "mikmod.h" in all the file if mikmod.h does not get supplied with the lua player,

[FaT3oYCG]

here is my luaplayer 0.20 i can compile that fine

LuaPlayer0.20.rar

if you want me to compile a special version for you send me the src or tell me what you want changing ans ill see what i can do for you

also if you wanted to make it easier add me on msn hotmail / windows live messenger at [email protected]

thanks

it also sounds like you havent installed lib mik mod or mik mod lib

go to cygwin and copy and paste this in

svn checkout svn://svn.ps2dev.org/psp/trunk/zlib
cd zlib
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/bzip2
cd bzip2
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/freetype
cd freetype
sh autogen.sh
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./configure --host psp --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/jpeg
cd jpeg
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libbulletml
cd libbulletml
cd src
make
make install
cd ..
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libmad
cd libmad
make
cp -Rf ./include /usr/local/pspdev/psp/
cp -Rf ./lib/libmad.a /usr/local/pspdev/psp/lib
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libmikmod
cd libmikmod
make -f Makefile.psp
make -f Makefile.psp install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libogg
cd libogg
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./autogen.sh --host psp --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libpng
cd libpng
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libpspvram
cd libpspvram
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libTremor
cd libTremor
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./autogen.sh --host psp --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/libvorbis
cd libvorbis
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./autogen.sh --host psp --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/lua
cd lua
make -f Makefile.psp
make -f Makefile.psp install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/pspgl
cd pspgl
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/sqlite
cd sqlite
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./configure --host=psp --disable-readline --disable-tcl --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/SDL
cd SDL
sh autogen.sh
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./configure --host psp --prefix=$(psp-config --psp-prefix) --enable-pspirkeyb
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/SDL_gfx
cd SDL_gfx
sh autogen.sh
AR=psp-ar LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./configure --host psp --with-sdl-prefix=$(psp-config --psp-prefix) --prefix=$(psp-config --psp-prefix) --disable-mmx --disable-shared
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/SDL_image
cd SDL_image
sh autogen.sh
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lpspirkeyb -lc -lpspuser" ./configure --host psp --with-sdl-prefix=$(psp-config --psp-prefix) --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/SDL_mixer
cd SDL_mixer
sh autogen.sh
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lc -lpspuser" ./configure --host psp --with-sdl-prefix=$(psp-config --psp-prefix) --prefix=$(psp-config --psp-prefix) --enable-music-mod
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/SDL_ttf
cd SDL_ttf
sh autogen.sh
LDFLAGS="-L$(psp-config --pspsdk-path)/lib -lpspirkeyb -lc -lpspuser" ./configure --host psp --with-sdl-prefix=$(psp-config --psp-prefix) --with-freetype-prefix=$(psp-config --psp-prefix) --without-x --prefix=$(psp-config --psp-prefix)
make
make install
cd ..
svn checkout svn://svn.ps2dev.org/psp/trunk/mikmodlib
cd mikmodlib
make install
cd ..

then it may work

- a word of warning it may take a while

[Mr_Shizzy]

Thanks hibby & [email protected] :)

[email protected] - I'll add you to msn :)

[Mraellis]

heya all, the other week some guy released a quiz thing. i decide to add a new quiz to it earlier and so edited the lua files and added one . but when i click cross on it on the psp it isn't loading it. can you look at the code please and see why. looks fine to me. i've added the ni(nintendo) section and heres a zip on rapidshare instead of posting the files.

http://rapidshare.com/files/86893719...eQuiz.rar.html

[Mraellis]

the edited file was mainly kat.lua and the ni folder. help plz anyone?

[FaT3oYCG]

the edited file was mainly kat.lua and the ni folder. help plz anyone?

post the code that you edited and we will help you copy and paste it into [/code] [code] tags

put the first one [/code-] at the end of the code
put the second one [code] at the beginning of your code

your code goes here

[Mraellis]

ok, i'm not certain what it was before though but heres the code now.

kat.lua =

  unloadbuff()
System.powerGetBatteryLifePercent()

red = Color.new(255, 0, 0)
white = Color.new(255, 255, 255)
------------------------------------------------
Select=1
maxSelect=4
menuBackground = Image.load("img/bg1.png")
ico = Image.load("img/buton.png")
ico1 = Image.load("img/buton1.png")
ico2 = Image.load("img/buton2.png")
oldpad=Controls.read()
------------------------------------------------
while true do
pad=Controls.read()
screen:clear()
screen:blit(0,0,menuBackground)
------------------------------------------------
-----------------------------icons--------------

if pad:left() and oldpad:left() ~= pad:left() then
Select = Select - 1
end
if pad:right() and oldpad:right() ~= pad:right() then
Select = Select + 1
end
if Select > maxSelect then
Select = 1
elseif Select <= 0 then
Select = maxSelect
end
if Select == 1 then
screen:blit(100,75,ico)
screen:blit(200,80,ico1)
screen:blit(300,80,ico2)
end
if Select == 2 then
screen:blit(100,80,ico)
screen:blit(200,75,ico1)
screen:blit(300,80,ico2)
end
if Select == 3 then
screen:blit(100,80,ico)
screen:blit(200,80,ico1)
screen:blit(300,75,ico2)
end

if pad:cross() and Select == 1 then
dofile("ms/1.lua")
end
if pad:cross() and Select == 2 then
dofile("qs/1.lua")
end
if pad:cross() and select == 3 then
dofile("ni/1.lua")
end

screen:print(30,30,"Select a Category")
screen:print(50,50,"Every Category has 10 Questions")
screen.waitVblankStart()
screen.flip()
oldpad = pad
end

and heres the i.lua its meant to load.

 unloadbuff()

menuBackground=Image.load("fl.png")
screen:blit(0,0,menuBackground)
oldpad=Controls.read()
screen:print(30,30,"What Does Ds mean?")
screen:print(80,130,"Dualshock")
screen:print(300,130,"Duel screen")
screen:print(200,220,"Dual screens")
screen.flip() 
while true do
---------------------------
if pad:square() then
dofile("ni/wrong.lua")
end
if pad:circle() then
dofile("ni/wrong.lua")
end
if pad:triangle() then
dofile("ni/right.lua")
end
---------------------------
pad=Controls.read()
screen.waitVblankStart()
oldpad = pad
end

basically it loads without errors and has the new section (Nintendo one) has a option but when i click x on it it doesn't do anything.

p.s i know about code tags but i uploaded it to show people as it'd be easyier since i'd added a a whole folder of like 15 lua files to, but i'll just assume they work atm since its not eve getting to them.

[FaT3oYCG]

i dont see any errors with that ???

apart from the fact that max select should be 3 shouldn't it ?

maxselect = 3 -- <-- i think that should be that

if select > maxselect then
select = 1
end

as you only have three items in the menu

[Mraellis]

even has 3 it doesn't work. i tried 4 because when there was only 2 originally it said 3. i cant see a problem either but if u download from the rapidshare link and try it u'll see it will not load the Nintendo quiz.

[FaT3oYCG]

oh looking at the code you have told it to load 1.lua but names the file i.lua

[Mraellis]

sorry that was a typo on my behalf, the files called 1.lua

[andyauff]

Can anyone tell me the syntax for finding the number of lines in a file?

I think I have it but it's not quite working.

Thanks.

[TurtlesPwn]

file = io.open("myfile","r")
numberoflinesinthefile = 0
for line in file:lines() do
	numberoflinesinthefile = numberoflinesinthefile+1
end
file:close()

For more on the lua IO library and other methods of doing it, check here: http://lua-users.org/wiki/IoLibraryTutorial