Lua Programming Help Thread

yeah like the char of a prx and how exaclty to find that out

Ok lets say I want to get get the char of this:

Code:

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fgsdfgsdfgf ddfhgj

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I would open up that prx in Word and go to Tools> word count and see Characters with spaces. It would give me 18. And I would put this:

Code:

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prxvalue = string.sub(file:read(18),x ,y)

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Then I want prxvalue to equal, these three characters:

Code:

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fgsdfgsdfgf ddfhgj

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I would highlight:

Code:

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fgsdfgsdfgf ddfhgj

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And go to word count again and see Characters with spaces and it would show 14 then add 1 to that makes it 15.
Then I would put:

Code:

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prxvalue = string.sub(file:read(18),15,y)

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Now I would highlight:

Code:

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fgsdfgsdfgf ddfhgj

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I would go to word count and see Characters with spaces and it would show 1. then I would take the that (1) and subract it from the total (18). That equals 17. So I would do:

Code:

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prxvalue = string.sub(file:read(18),15,17)

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And now prxvalue is actually equal to:

Code:

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prxvalue = "fhg" -- dont add that anywhere jus to show you what it equals now

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-= Double Post =-
When I put highlight I made it bold the bold is really hard to seee but it is there.

quick and easy question: there are a lot of ways to do hello world in lua right?
one of they ways of doing that is this:
print:("hello world")
or something like that
would that pput hello world on the screen?

no just:

Code:

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print("hello world")

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Ya right like that

Zitat:

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Zitat von michaelp

quick and easy question: there are a lot of ways to do hello world in lua right?
one of they ways of doing that is this:
print:("hello world")
or something like that
would that pput hello world on the screen?

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you would first have to create a color like

Code:

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white = Color.new(255,255,255)

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then add

Code:

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while true do

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and put your code then

Code:

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screen.flip()
screen.waitVblankStart()
end

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-= Double Post =-
oh yeah

Code:

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white = Color.new(255,255,255)

function print(x,y,inputString)
return screen:print(x,y,inputString,white)
end

while true do
screen:clear()

print(10,10,"hello")

screen.flip()
end

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can any one tell me why this isn't working?

background = Image.load("background.pn g")
screen:blit(480,272,backr ound)
print(tostring(System.pow erGetBatteryLifePercent() ) .. " %Alcohol")
screen:flip()
while true do
pad = Controls.read()
if pad:cross() then
break
end
end

edit: ignore the spaces in weird places i think the forum did that for some reason

^ I think thats wrong print cant have the x,y parameters.

It may be right your trying to change screen:print not trying to printCenteredText

Zitat:

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Zitat von michaelp

quick and easy question: there are a lot of ways to do hello world in lua right?
one of they ways of doing that is this:
print:("hello world")
or something like that
would that pput hello world on the screen?

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yes

Zitat:

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Zitat von michaelp

quick and easy question: there are a lot of ways to do hello world in lua right?
one of they ways of doing that is this:
print:("hello world")
or something like that
would that pput hello world on the screen?

---

this will print text into command line console

Zitat:

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Zitat von psphackman

can any one tell me why this isn't working?

background = Image.load("background.pn g")
screen:blit(480,272,backr ound)
print(tostring(System.pow erGetBatteryLifePercent() ) .. " %Alcohol")
screen:flip()
while true do
pad = Controls.read()
if pad:cross() then
break
end
end

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Code:

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background = Image.load("background.pn g")
while true do
screen:blit(0,0,background)
screen:print(0,0,System.powerGetBatteryLifePercent().. " %Alcohol",Color.new(255,255,255))
pad = Controls.read()
if pad:cross() then
break
end
screen.waitVblankStart()
screen:flip()
end

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try that

ok

I din't mean that one to you, but I fixed you its above your post
-= Double Post =-
Wait I just edited it

Zitat:

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Zitat von psphackman

can any one tell me why this isn't working?

background = Image.load("background.pn g")
screen:blit(480,272,backr ound)
print(tostring(System.pow erGetBatteryLifePercent() ) .. " %Alcohol", Color.new(255,255,255))
screen:flip()
while true do
pad = Controls.read()
if pad:cross() then
break
end
end

edit: ignore the spaces in weird places i think the forum did that for some reason

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Code:

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background = Image.load("background.png")

while true do

screen:blit(0,0,background)
screen:print(5,5,System.powerGetBatteryLifePercent() .. " %Alcohol")
       
pad = Controls.read()
if pad:cross() then
break
end

screen.waitVblankStart()
screen.flip()
end

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try this

I just gave him that! :/

Zitat:

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Zitat von myschoo

this will print text into command line console

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*ahem* debug console.

i don't think it worked the battery info keep repeating like this 100%
100%....
and the pic didn't load

Zitat:

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Zitat von pspfreak9

I just gave him that! :/

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No you didnt. You told him to use the print command with a syntax similar to the Image.print function.

try minee again I edited it
-= Double Post =-
Youresam: No I edited that before myschoo posted.

Zitat:

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Zitat von pspfreak9

try minee again I edited it
-= Double Post =-
Youresam: No I edited that before myschoo posted.

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lies!

I jsut edited again to stop the reapeating 100%.
-= Double Post =-

Zitat:

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Zitat von youresam

lies!

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What your lieing :p

freak: at first you even blitted BG outside the screen :P (480,272)

jk

Zitat:

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Zitat von myschoo

freak: at first you even blitted BG outside the screen :P (480,272)

jk

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:ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL: :ROFL:
(btw its 479,271)

I know I moved his blit over into the loop then cahnged to 0,0 when I saw that.

lol thanks guys (second day practicing lua)

no a VERY important question. what game should i make as my first one
like what is/was the easiest for you?

You should probably pratice with something easy that contain a collision function to get the feel for that

Anyone wanna help me test my game?

Zitat:

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Zitat von pspfreak9

Anyone wanna help me test my game?

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What is it ... I give it a try

Anyone else... You have to have cools luaplayer mod

Zitat:

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Zitat von pspfreak9

Anyone else... You have to have cools luaplayer mod

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I'll take a look at it if you want.

look or a test? A look at it is fine too. :)

Zitat:

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Zitat von pspfreak9

look or a test? A look at it is fine too. :)

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I have no problem testing it, pm me with the link and give me a couple of hours and I'll get back to you with my initial impressions. We'll go from there.

It is a online game so i'll PM you the link and go to flash chat so we can test it.

Zitat:

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Zitat von pspfreak9

Code:

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white = Color.new(255,255,255)

file = io.open("flash0:/vsh/etc/version.txt","r")
mystring = file:read()
file:close()

newstring = string.sub(mystring,9,12) 

screen:clear(white)
if newstring == "3.03 OE-C" or newstring == "3.10 OE-A" then-- And so on...(Put all the OE firmwares there or protected firmwares.)
screen:print(155,136,"Firmware Version: "..newstring.." You are protected")
while true do
pad = Controls.read()
--(Your other flashing/ text here.)
screen:print(0,0,"PRESS X to flash a custom font",Color.new(255,255,255))
if pad:cross() then
System.writeFile("ms0:/ltn0.pgf","flash0:/vsh/font/ltn0.pgf","yes")
if  pad:start() then
screen:print(480,272,"OFFscreen",Color.new(255,255,255))
end
end
if pad:home() then
screen:print(0,136,"YOU MAY NOT EXIT THE PROGRAM NOW, PRESS START TO EXIT THE PROGRAM.")
if pad:start() then
break
end
screen.flip()
screen.waitVblankStart()
end
else
screen:print(155,136,"YOU ARE NOT PROTECTED PLEASE UPGRADE TO OE")
end
screen:clear()
screen:print(0,0,"You are now done flashing press home to exit the program.",Color.new(255,255,255))
screen.waitVblankStart()
screen.flip()

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I'm pretty sure that will work.
Edit: I did alot of it for you, added more security.. It may not be all right please go through it.
AND DON'T FORGET TO UNASSIGN FLASH0 FOR READ AND WRITE PRIVLEDGES, I FORGOT TO ADD IT.

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WOW man thx it really helps!:)

but i got an error... it says "then expected near newstring"

will someone PM me a basic menu please

ai - Try adding a space inbetween then and --.

pspfreak - you dont unassign flash0: for read-write privealges. When assigning any device in Lua, read-write privealges are given to you. By default, flash0 is inread-only mode, so you need to unassign, than reassign it to be able to write to it.

pspgamer - PMing answers helps no one but yourself. Im sure others would like a basic menu code. Ill write one up real quick...

actualy i already deleted that "--and......"

hmm what would be the problem...

Zitat:

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Zitat von SG57

ai - Try adding a space inbetween then and --.

pspfreak - you dont unassign flash0: for read-write privealges. When assigning any device in Lua, read-write privealges are given to you. By default, flash0 is inread-only mode, so you need to unassign, than reassign it to be able to write to it.

pspgamer - PMing answers helps no one but yourself. Im sure others would like a basic menu code. Ill write one up real quick...

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I know, i forgot to add assign after unassigning (hey I wrote it up really quick :p )

Zitat:

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Zitat von PSPgamer512

will someone PM me a basic menu please

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i think there is in lua scripts and snippets section