Homebrew [Release] Lua Player Plus 3DS (lpp-3ds) - LUA interpreter for 3DS

[PabloMK7]

Looks correct to me. If you're on NH 2.x, are you using the network descriptor?

I'm using the cia build, the example in the doc is working, but not pastebin.

 

[UltiNaruto]

I'm getting some crashes on LPP-3DS R5 with this code :

function setup(pScreen)
    local screen={
        previous_screen = pScreen;
        black = Color.new(0, 0, 0);
        blue = Color.new(90, 90, 255);
        red = Color.new(255, 0, 0);
        draw = function(self)
            Screen.fillRect(0, 400, 0, 240, self.blue, TOP_SCREEN)
            Screen.fillRect(0, 320, 0, 240, self.blue, BOTTOM_SCREEN)
            if not Network.isWifiEnabled() then
                Screen.debugPrint(200-(string.len("Please enable the wifi!")*15)/4, 120, "Please enable the wifi!", self.red, TOP_SCREEN)
            else
                Screen.debugPrint(200-(string.len("FTP Setup Screen")*15)/4, 120, "FTP Setup Screen", self.black, TOP_SCREEN)
            end
        end;
        controls = function(self)
            --if Controls.check(Controls.read(), KEY_START) then
            --    return pScreen
            --end
            return self
        end;
    }
    return screen
end

The crash is not instantly on the screen init but after several seconds it drew the screen.

 

[Rinnegatamante]

I'm getting some crashes on LPP-3DS R5 with this code :

function setup(pScreen)
    local screen={
        previous_screen = pScreen;
        black = Color.new(0, 0, 0);
        blue = Color.new(90, 90, 255);
        red = Color.new(255, 0, 0);
        draw = function(self)
            Screen.fillRect(0, 400, 0, 240, self.blue, TOP_SCREEN)
            Screen.fillRect(0, 320, 0, 240, self.blue, BOTTOM_SCREEN)
            if not Network.isWifiEnabled() then
                Screen.debugPrint(200-(string.len("Please enable the wifi!")*15)/4, 120, "Please enable the wifi!", self.red, TOP_SCREEN)
            else
                Screen.debugPrint(200-(string.len("FTP Setup Screen")*15)/4, 120, "FTP Setup Screen", self.black, TOP_SCREEN)
            end
        end;
        controls = function(self)
            --if Controls.check(Controls.read(), KEY_START) then
            --    return pScreen
            --end
            return self
        end;
    }
    return screen
end

The crash is not instantly on the screen init but after several seconds it drew the screen.

Are you using unsafe version of lpp-3ds?
It looks like you're printing out of framebuffers (for example fillRect should be 0,399 / 0 ,239 for example)

 

[UltiNaruto]

I'm using normal version. I didn't know about this, thanks.

EDIT: Works perfectly.

EDIT 2:
Here's a small example of making OOP project for games or tools for anyone who needs it :

index.lua :

if System.getModel() == 2 or System.getModel() == 4 then
    System.setCpuSpeed(NEW_3DS_CLOCK)
end
dofile("/YourHomebrew/Includes.lua")
-- Initialize oldpad
oldpad = 0

g_KeyPressTimer = Timer.new()
g_LastKeyPress = Timer.getTime(g_KeyPressTimer)

currentScreen = yourScreen()

Screen.disable3D()

-- Main Loop
while true do
    -- Updating screens
    Screen.waitVblankStart()
    Screen.refresh()
    Screen.clear(TOP_SCREEN)
    Screen.clear(BOTTOM_SCREEN)

    pad = Controls.read()

    currentScreen:draw(currentScreen)

    -- Flipping screen
    Screen.flip()

    if Timer.getTime(g_KeyPressTimer) - g_LastKeyPress > 120 then
        currentScreen, last_key = currentScreen:controls(currentScreen)
        if pad ~= 0 then
            g_LastKeyPress = Timer.getTime(g_KeyPressTimer)
        end
    end

    -- Sets up HomeMenu syscall
    if Controls.check(Controls.read(),KEY_HOME) then
        System.showHomeMenu()
    end

    -- Exit if HomeMenu calls APP_EXITING
    if System.checkStatus() == APP_EXITING then
        System.exit()
    end
    oldpad = pad
end

Includes.lua :

dofile("/YourHomebrew/scripts/screen/yourScreen.lua")
-- include other files if you make other screens (and sort it in Z-A format and not in A-Z format if you plan to link the screens)

yourScreen.lua :

function yourScreen(pScreen)
    local screen={
        previous_screen = pScreen; -- store previous screen to make it possible to return to old screen
        getStringLength = function (self, str, fontSize)
            return math.floor(math.abs((string.len(str)*fontSize)/4))
        end;
        draw = function(self)
            -- draw your stuff here
        end;
        controls = function(self)
            if Controls.check(Controls.read(), KEY_B) then
                return pScreen -- return to previous screen because B key was pressed
            end
            return self -- return same screen because no actions were made
        end;
    }
    return screen
end

@Rinnegatamante Could you include this in your future release of LPP-3DS? It may help some people.

 

[PabloMK7]

@Rinnegatamante Do you think you could add https to Network features? All the sites using http protocol doesn't seem to work with Network.requeststring, even the string being raw.
Example: http://cdn.rawgit.com/mariohackandglitch/CTGP-7ver/master/version.txt
Or: http://pastebin.com/raw/TcqHEX45

 

[Rinnegatamante]

@Rinnegatamante Do you think you could add https to Network features? All the sites using http protocol doesn't seem to work with Network.requeststring, even the string being raw.
Example: http://cdn.rawgit.com/mariohackandglitch/CTGP-7ver/master/version.txt
Or: http://pastebin.com/raw/TcqHEX45

Don't know if http:C service supports https protocol at all. Have you tried downloading the file using sockets?

 

[PabloMK7]

Don't know if http:C service supports https protocol at all. Have you tried downloading the file using sockets?

How could I do that? (No info in the doc)

 

[Rinnegatamante]

How could I do that? (No info in the doc)

You must use a client socket and connect to port 80 of the server address you want to download a file from, then you must send a proper payload for the HTTP request.

 

[MissingNO123]

is there a way to make lpp force itself to use CSND without using the XML file for it? I'm trying to use it as my boot.3dsx file and I don't think the XML can work there.

 

[Rinnegatamante]

is there a way to make lpp force itself to use CSND without using the XML file for it? I'm trying to use it as my boot.3dsx file and I don't think the XML can work there.

Unfortunately not, it's a NH2 limitation.

 

[LiquidFenrir]

Hey @Rinnegatamante ! I'm trying to make a function to ping a server (before downloading a file from it,because if you do that it hangs forever), using the socket system.
I know what to send for a ping thanks to http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=8&txtCodeId=1786
Here's my code: http://pastebin.com/AGjpiqUr
The output function simply writes to a file, you can ignore it
I tried with multiple websites and always get the same error: "Failed connecting server."
Do you know why it happens and how I can fix it?

 

[Rinnegatamante]

Hey @Rinnegatamante ! I'm trying to make a function to ping a server (before downloading a file from it,because if you do that it hangs forever), using the socket system.
I know what to send for a ping thanks to http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=8&txtCodeId=1786
Here's my code: http://pastebin.com/AGjpiqUr
The output function simply writes to a file, you can ignore it
I tried with multiple websites and always get the same error: "Failed connecting server."
Do you know why it happens and how I can fix it?

Are you using the network descriptor?
Also Socket needs an IP, not an http URL since there is no url resolver atm.

 

[HexZyle]

Screenshot function just freezes the application. There's a file, but it's unreadable (50.5KB). Never had an issue with it when I was using release 3.

 

[LiquidFenrir]

Yes, I'm using an IP, not an url.
What do you call "network descriptor" ?
Things like "Network.isWifiEnabled()" or things like "http://" ?

 

[UltiNaruto]

Connect to the IP then send a GET request maybe?
it should return a status like 200 for success.
You can't just ping the address like that.
The main problem is that if the address is a dns then it won't work as @Rinnegatamante told you.

@Rinnegatamante Isn't there a gethostbyname function on 3ds or you didn't think about it?

 

[Rinnegatamante]

Connect to the IP then send a GET request maybe?
it should return a status like 200 for success.
You can't just ping the address like that.
The main problem is that if the address is a dns then it won't work as @Rinnegatamante told you.

@Rinnegatamante Isn't there a gethostbyname function on 3ds or you didn't think about it?

These are all the available functions from standard C for socketing: https://github.com/smealum/ctrulib/blob/master/libctru/include/sys/socket.h

Screenshot function just freezes the application. There's a file, but it's unreadable (50.5KB). Never had an issue with it when I was using release 3.

Are you using jpg compression?

Yes, I'm using an IP, not an url.
What do you call "network descriptor" ?
Things like "Network.isWifiEnabled()" or things like "http://" ?

The xml descriptors included in r5 pack.

 

[HexZyle]

Are you using jpg compression?

I'm not.

 

[Rinnegatamante]

I'm not.

Try to use it. Anyway it's pretty strange you get a crash.

 

[HexZyle]

Try to use it. Anyway it's pretty strange you get a crash.

JPG compression mode works, but the screenshots look ugly.

 

[LiquidFenrir]

@Rinnegatamante welp, copied the "networking_features.xml" to the same directory as my .3dsx and index.lua, changed the address to a normal website instead of google's dns, changed port from 80 to 1 and I still get the error. I don't know what can be wrong now.
EDIT: also, when trying to build lpp-3ds myself, I always get the same error:

Spoiler: error

linking lpp-3ds-master.elf
c:/devkitpro/devkitarm/bin/../lib/gcc/arm-none-eabi/5.3.0/../../../../arm-none-eabi/bin/ld.exe: cannot find 3dsx_crt0.o: No such file or directory
collect2.exe: error: ld returned 1 exit status