Lua Programming Help Thread

... To everyone ...

Please run tests and small example programs, made by you, to learn the basic concept of programming... Once that is understood, the syntax of any language is the real challenge...

So in your case, mark.sparky, there's multiple ways to determine what direction, even with your vague question... As for when a button isnt pressed, Im using the basic concept of the 'not' operator with-in an argument/function returning 1 on pressed, 'not-1' when not pressed... So you do the basic puesdo code for this...

Code:

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-- I dont know all the syntax of LUA, so w/e the 'not' operator is, use it... Im
-- guessing it's the ~ thing... in C its the !

while true do
    sg57 = Controls.read()
   
    -- Ex:  Pause
    if ~sg57:start() then
            --While not paused, have movement calls here
    else -- if start is pressed
          -- app now paused...
    end
end

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I dont even know probably 1/2 of the LUA syntax as an average LUA coder does, yet i understand the concept/routines to use in accomplishing what you want... It comes in very handy... Anyway, good luck with your new game mark.sparky!

How do you exit the program and go back to the XMB? Besides using the "HOME" button?

Zitat:

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Zitat von Access_Denied

How do you exit the program and go back to the XMB? Besides using the "HOME" button?

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I think break; or break works. Like:

Code:

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if pad:cross() then
break; -- I think it's break, try both ways. break; and break.
end

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Zitat:

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Zitat von Access_Denied

How do you exit the program and go back to the XMB? Besides using the "HOME" button?

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you can't exit back to the XMB from LUA. Only back to a Lua Browser (if app. is launched from within the same Lua Browser)

Well my PSP is currently unavailable, but I tried "break" on LUA Player for Windows and it immedately exited the program. So I think it worked.

@Jeremy - If that's the case, then it need to be a stand alone eboot, then do break and it will exit back to the XMB.

@Access_Denied - I'm not sure if it is going to exit to the XMB or the lua browser, since with the computer you can't tell.

Well, I have tried this with an eboot. using the break function just gives you a black screen with the text, Press start to restart.

I'm using a standalone EBOOT. But if it doesn't work, I'll just settle with the home button. Unless anyone else knows a way?

Zitat:

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Zitat von PSPduh

@Jeremy - If that's the case, then it need to be a stand alone eboot, then do break and it will exit back to the XMB.

@Access_Denied - I'm not sure if it is going to exit to the XMB or the lua browser, since with the computer you can't tell.

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in a standalone eboot the "break" command simply restarts the lua application.

You have to use unofficial Luaplayer versions, such as v0.17dk2 by Dark Killer or v0.20 mod by Cools, both of which have a System.Quit() function (Cools got his from Dark Killer's) that "exits Lua Player back to the psp browser." I haven't tested this yet but I assume it works. I'm sure somebody here could confirm this.