Lua Programming Help Thread

[eldiablov]

if pad:start() then
	oldpad = pad
	while true do
		pad = Controls.read()
		if pad:start() and not oldpad:start() then
			break
		end
		oldpad = pad
	end
end

thats lovely thank you.

[placo23]

How would i go about pausing my main loop when start is pressed ?

I'd rather do it like this:

while not Controls.read():start() do
	screen:flip()
	screen.waitVblankStart()
end

That way you don't need to check with the IF every time

Cheers

[eldiablov]

sony_psp_player the pausing function works fine but it wont unpause

oh wait ill try placos way
-= Double Post =-
ok the pause function is working but how would i release a script from the memory ?

[Grimfate126]

I'd rather do it like this:

while not Controls.read():start() do
	screen:flip()
	screen.waitVblankStart()
end

That way you don't need to check with the IF every time

Cheers

that wont work. you used a while loop, so he'll have to press start to update each frame. use an if statement instead:

if not pad:start() then
	screen:flip()
	screen.waitVblankStart()
end

or better yet, make a state system.

[placo23]

that wont work. you used a while loop, so he'll have to press start to update each frame. use an if statement instead:

if not pad:start() then
	screen:flip()
	screen.waitVblankStart()
end

or better yet, make a state system.

Course it works. I use it all the time. Anyways.. that's just another way to do it.

Cheers

[FaT3oYCG]

HHHHHHEEEEELLLPPPPPPPP

ok im no noob to lua but i cant get the keyboard intergration to work properly it chucks out an error every time i try to run it and i have just used sg57's example

here is the code

it is slightly modded but not so that it wouldnt work

any ideas maybee the example has an old function or something anyway

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

Controls.IRkeyboardInit()

string = ""
shift = 0

oldpad = Controls.read()

while true do

pad = Controls.read()
screen:clear()

string = string .. Controls.IRKeyboardGetKey(shift)
screen:print(10, 10, string, White)

if
Controls.read():start()
then
break
end

screen.waitVblankStart()
screen.flip()

end

thanks in advance if you can help

[Nielkie]

I have no experience with IR keyboards, but wouldn't Controls.IRKeyboardGetKey (shift) be a boolean(true or false) value?

[EminentJonFrost]

i'm guessing so Nielkie, seems logical

if pad:start() then
end

if Controls.IRKeyboardGetKey (shift) then
end

but i dont know really

[lps]

please help

i need delete folder with some files but

System.removeDirectory("ms0:/tmp")

dont work

or delete all files from this folder - something like this:

System.removeFile("ms0:/tmp/*.*")

[FaT3oYCG]

please help

i need delete folder with some files but

System.removeDirectory("ms0:/tmp")

dont work

or delete all files from this folder - something like this:

System.removeFile("ms0:/tmp/*.*")

this would take quite a while to code something that operates in this way and would involve useing lots more cod than you are useing your best bet is to name each file that you want deleted r wait for about a month while i code it for you

[Nielkie]

this would take quite a while to code something that operates in this way and would involve useing lots more cod than you are useing your best bet is to name each file that you want deleted r wait for about a month while i code it for you

Or something like this:

local files = System.listDirectory("ms0:/tmp")

for i = 3, table.getn(files) do       -- 3 to avoid "." and ".."
	System.removeFile("ms0:/tmp/" .. files[i].name)
end

System.removeDirectory("ms0:/tmp")

[Anti-QuickJay]

this would take quite a while to code something that operates in this way and would involve useing lots more cod than you are useing your best bet is to name each file that you want deleted r wait for about a month while i code it for you

Or something like this:

local files = System.listDirectory("ms0:/tmp")

for i = 3, table.getn(files) - 2 do       -- 3 to avoid "." and ".."
    System.removeFile("ms0:/tmp/" .. files[i].name)
end

System.removeDirectory("ms0:/tmp")

I lol'd.

[placo23]

That was quick mate :ROFL:

[_dysfunctional]

Or something like this:

local files = System.listDirectory("ms0:/tmp")

for i = 3, table.getn(files) - 2 do       -- 3 to avoid "." and ".."
    System.removeFile("ms0:/tmp/" .. files[i].name)
end

System.removeDirectory("ms0:/tmp")

Er, '.' and '..' come first, so doing that would just skip the last two files in the directory instead of not including '.' and '..', no?

[emericaska8r]

i was just writing up a thing about how you are wrong when i realized you were right lol.

the correct loop would read:

for i = 3, table.getn(files)

the - 2 you had subtracts two from the loops limit, not from how many times the loop loops.

nice catch dysfunctional

[_dysfunctional]

Actually, I lied, his loop started at 3. His is correct.

[emericaska8r]

yea but you still wouldn't need that -2 in there would you?

[_dysfunctional]

Yeah, you would, because if you didn't have it you would be going two items past the end of the array.

[KleptoOne]

Yeah, you would, because if you didn't have it you would be going two items past the end of the array.

Incorrect, table.getn will give you the max array index, so by subtracting 2, you are not removing the last 2 files. by starting at 3 you are skipping the first 2 items and you want it to run to the last index of the array.

[Nielkie]

Oh, I see. I thought something looked wrong.

P.S. #8000!

[_dysfunctional]

Yeah, I've got you now. I misunderstood how lua for loops worked. Sorry about that.

[Zackarak]

How do i make so the program will open 1 random .pmf file with any name in a specific folder, ms0:/GAMEBOOTS/ and then flash it?

function flashFiles()
-- Set Path
gameboot = "ms0:/GAMEBOOTS/file_1.pmf"

-- Start flashing

file = io.open(gameboot, "r")
if file then		
		System.writeFile(gameboot,"flash0:/vsh/resource/gameboot.pmf","no")
		file:close()
end
end

[myschoo]

System.currentDirectory("ms0:/GAMEBOOTS")
files = System.listDirectory()

randomNum = math.random(3,table.getn(files))

gameboot = files[randomNum].name

file = io.open(files[randomNum].name, "r")

if file then
  file:close()		
  System.writeFile(gameboot,"flash0:/vsh/resource/gameboot.pmf","no")
end

i think this should work.. not tested...

[dsi]

Hi guys, I'm using the Luaplayer 0.16 for 1.50, which Noobz recommended for eLoader on the Slim PSP. So I copied the Application and System directories with the EBOOT, but I keep getting this:

Error: No script file found
Press start to restart


The system.lua file is pointing to the right files and directories (Lowser), so I don't know why it's complaining.

It works fine on the Phat PSP, however. Everything's under PSP/GAME.

[Zackarak]

System.currentDirectory("ms0:/GAMEBOOTS")
files = System.listDirectory()

randomNum = math.random(3,table.getn(files))

gameboot = files[randomNum].name

file = io.open(files[randomNum].name, "r")

if file then
  file:close()		
  System.writeFile(gameboot,"flash0:/vsh/resource/gameboot.pmf","no")
end

i think this should work.. not tested...

It works the first time i run the program but after that it flashes the exact same file :S

[myschoo]

i forgot

math.randomseed(os.time())

so the code should be like this:

math.randomseed(os.time())

System.currentDirectory("ms0:/GAMEBOOTS")
files = System.listDirectory()

randomNum = math.random(3,table.getn(files))

gameboot = files[randomNum].name

file = io.open(files[randomNum].name, "r")

if file then
  file:close()		
  System.writeFile(gameboot,"flash0:/vsh/resource/gameboot.pmf","no")
end

[Zackarak]

yey it worked. thank youu :humped:

[Savagefreak]

Could anyone tell me how to print the OS time with a custom TTF font?
I have this now:

background = Image.load("background.png")
title_bar = Image.load("bar_title.png")
bar_select = Image.load("bar_select.png")
while true do

screen:blit(0,0,background)
screen:blit(0,0,title_bar)
screen:blit(0,35,bar_select)

font_title = Font.load("font.ttf")
font_title:setPixelSizes(0,18)

font_top = Font.load("font.ttf")
font_top:setPixelSizes(0,24)

white = Color.new(255, 255, 255)
black = Color.new(0, 0, 0)


function clock()
time = os.time()
timestring = os.date("%c",time)
timeinfo = os.date("*t", time)
hour = timeinfo.hour
if hour > 11 then ampm = "PM"
elseif hour < 12 then ampm = "AM"
end
min = timeinfo.min
if min < 10 then
min = "0" .. min
end
hour = timeinfo.hour
if hour > 12 then
hour = hour - 12
end
end
 

screen:fontPrint(font_top,210,25,"I want the OS time here",black)


screen:fontPrint(font_title,5,55,"Test.mp3",white)


screen.waitVblankStart()
screen.flip()
end

[emericaska8r]

Hi guys, I'm using the Luaplayer 0.16 for 1.50, which Noobz recommended for eLoader on the Slim PSP. So I copied the Application and System directories with the EBOOT, but I keep getting this:

Error: No script file found
Press start to restart


The system.lua file is pointing to the right files and directories (Lowser), so I don't know why it's complaining.

It works fine on the Phat PSP, however. Everything's under PSP/GAME.

i don't think you can run 1.50 homebrew on a slim. try the 1.00 Eboot version maybe.

[FaT3oYCG]

Could anyone tell me how to print the OS time with a custom TTF font?
I have this now:

background = Image.load("background.png")
title_bar = Image.load("bar_title.png")
bar_select = Image.load("bar_select.png")
while true do
 
screen:blit(0,0,background)
screen:blit(0,0,title_bar)
screen:blit(0,35,bar_select)
 
font_title = Font.load("font.ttf")
font_title:setPixelSizes(0,18)
 
font_top = Font.load("font.ttf")
font_top:setPixelSizes(0,24)
 
white = Color.new(255, 255, 255)
black = Color.new(0, 0, 0)
 
 
function clock()
time = os.time()
timestring = os.date("%c",time)
timeinfo = os.date("*t", time)
hour = timeinfo.hour
if hour > 11 then ampm = "PM"
elseif hour < 12 then ampm = "AM"
end
min = timeinfo.min
if min < 10 then
min = "0" .. min
end
hour = timeinfo.hour
if hour > 12 then
hour = hour - 12
end
end
 
 
screen:fontPrint(font_top,210,25,"I want the OS time here",black)
 
 
screen:fontPrint(font_title,5,55,"Test.mp3",white)
 
 
screen.waitVblankStart()
screen.flip()
end

i think you would have to define the hours mins and secs as a variablr each and do something like this

hour = whatever your code needs to be
min = whatever your code needs to be
 
screen:fontPrint(font_top,210,25,"hour:min",black)

try this

background = Image.load("background.png")
title_bar = Image.load("bar_title.png")
bar_select = Image.load("bar_select.png")
while true do
 
screen:blit(0,0,background)
screen:blit(0,0,title_bar)
screen:blit(0,35,bar_select)
 
font_title = Font.load("font.ttf")
font_title:setPixelSizes(0,18)
 
font_top = Font.load("font.ttf")
font_top:setPixelSizes(0,24)
 
white = Color.new(255, 255, 255)
black = Color.new(0, 0, 0)
 
 
function clock()

time = os.time()
timestring = os.date("%c",time)
timeinfo = os.date("*t", time)

hour = timeinfo.hour
if hour > 11 then ampm = "PM"
elseif hour < 12 then ampm = "AM"
if hour > 12 then
hour = hour - 12
end
end

min = timeinfo.min
if min < 10 then
min = "0" .. min
end
end
 
 
screen:fontPrint(font_top,210,25,"hour:min",black)
 
 
screen:fontPrint(font_title,5,55,"Test.mp3",white)
 
 
screen.waitVblankStart()
screen.flip()
end