Lua Programming Help Thread

guys wasnt this supposed to work ?. already put CursorsDimensionY and X before while true do

Code:

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if letterPosy < 0 then letterPosy = 0
        else if letterPosy > 272 - CursorsDimensionY then letterPosy = 272 - CursorsDimensionY
        else if letterPosx < 0 then letterPosx = 0
        else if letterPosx > 480 - CursorsDimensionX then 480 - CursorsDimensionX
        end
end

---

Zitat:

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Zitat von Raven_lif

yes i defined launcher6 and 7 amognst others

ill try
waitVblankstart()
but doesnt that make the screen pause?



well i assume so - its just a code to clear the image isn't it? launch7 being the image

but anyway it doesnt work - because it just dies and gives the error i mentioned

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yes. thats what "screen.waitVblankStart() " does. it stops the screen at leaving whatever is blitted right where it is for eternity, unless its used in a "while true do" loop.

Code:

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--[[
launcher  loaded in default position)
]]

screen:blit(20,98,launche  r7)
screen:flip() <-- whats this here for? I only see a need for one "screen.flip()", and thats placed at the bottom of the script just before "screen.waitVblanStart()".

pad = Controls.read()

if pad:cross() then break end
end

if pad:up() then
launcher7.clear()
screen:blit(20,98,launche  r6)
screen:flip()
end

---

you missed an "end" for that last "if" loop.

Zitat:

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Zitat von natan333

guys wasnt this supposed to work ?. already put CursorsDimensionY and X before while true do

Code:

---

if letterPosy < 0 then letterPosy = 0
        else if letterPosy > 272 - CursorsDimensionY then letterPosy = 272 - CursorsDimensionY
        else if letterPosx < 0 then letterPosx = 0
        else if letterPosx > 480 - CursorsDimensionX then 480 - CursorsDimensionX
        end
end

---

---

only one "end" is necessary.

thats whats good about using "elseif".

damn...I just realized I'm making too many posts..oh well.

Code:

---

if pad:up() then
launcher7.clear() -- just use a normal "screen.clear()"
screen:blit(20,98,launche    r6)
screen:flip()
end

---

Zitat:

---

you missed an "end" for that last "if" loop.

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the end is there was just on the next line down

Zitat:

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screen:blit(20,98,launche r7)
screen:flip() <-- whats this here for? I only see a need for one "screen.flip()", and thats placed at the bottom of the script just before "screen.waitVblanStar t

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becuase its loading ht elauncher - as well as some other images - that i dont have a problem with - which is why they are not included in the code

also a screen:clear()
doesnt do anything

oh........god

Zitat:

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Zitat von Raven_lif

the end is there was just on the next line down


becuase its loading ht elauncher - as well as some other images - that i dont have a problem with - which is why they are not included in the code

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ah.

i think you should post a little more coding next time around so people avoid confusion.

XD..... sorry

Thanks EminentJonFrost, but it still creates a stackdump file. I spaced out everything that was cramped on the equal sign; the new code:

Code:

---


red = Color.new(255,0,0)
green = Color.new(0,255,0)
blue = Color.new(0,0,255)
white = Color.new(255,255,255)

duh = Image.load("duh.png")
counter = Timer.new()
counter:start()
screen:blit(50,50,duh)
while true do
pad = Controls.read()

if pad:up() then
duh.y = duh.y + 2
end

if pad:down() then
duh.y = duh.y - 2
end

if pad:right() then
duh.x = duh.x + 2
end

if pad:left() then
duh.x = duh.x - 2
end

currentTime = counter:time()
screen:clear(blue)
screen:print(10,10,"Counter Time: " .. currentTime, white)

if currentTime > 2500 and currentTime < 5000 then
screen:clear(red)
end

if currentTime > 5001 then
counter:reset(0)
counter:start()
end

---

And the stackdump file: (not sure if it changed)

Code:

---


Stack trace:
Frame    Function  Args
7C8107FD  7C81084D  (32000000, 907C83AB, 90909090, FC489D39)
 322869 [sig] luaplayer 2956 handle_threadlist_exception: handle_threadlist_exception called with threadlist_ix -1
 339374 [sig] luaplayer 2956 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
Exception: STATUS_ACCESS_VIOLATION at eip=61015E82
eax=00FFFFFF ebx=610E7ECC ecx=00000000 edx=FF001CC6 esi=00000001 edi=00000001
ebp=00A2E6E8 esp=00A2E6E4 program=C:\Documents and Settings\FattyMcFat\Desktop\luaplayerwindows\luaplayer.exe, pid 2956, thread sig
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame    Function  Args
00A2E6E8  61015E82  (610E7ECC, 6110BA74, FC489D39, 00000000)
00A2E708  61015FAC  (00000001, 00A2E760, 00000000, 00000000)
00A2EA58  610179AB  (000006F4, 00A2EED0, 000000A4, 00A2EE9C)
00A2EF98  6108A497  (610E6D18, 00000000, 00000F84, 00000000)
00A2EFC8  6100327F  (610E6D18, 00A2F000, 61003160, 00000000)
00A2EFF8  61003E94  (00000000, 00000000, 00000000, 00000000)
00A2FF98  61003EDA  (00000000, 00000000, 00000000, 00000000)
End of stack trace

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Thanks in advance!

hmm. that code was wrong for me
the code bellow worked with me like a charm =PP

Code:

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if letterPosy < 2 then letterPosy = 2 end
if letterPosy > 269 then letterPosy = 269 end
if letterPosx < 2 then letterPosx = 2 end
if letterPosx > 477 then letterPosx = 477 end

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Anyways, i dont know how will be for users bellow 2.0, is the lua windows eboot have a home button included ?
and How can i take screenshot like

Code:

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if pad:l() and pad:triangle() then screen:save("PortablePaint.tga") end

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but to go to the root of the memory stick ?
and by making it to change to portablepaint to like portablepaint02 if i pres l trigger and triangle twice and so on?

Zitat:

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Zitat von natan333

SG57
Now what could it be wrong this time ? Lua player load my index with out any error but with the eboot and changing system.lua to load mine it gives error, it dosent load my index but it dose load airhockey index
i added the luasplash and and comp.wav to my index it loads but when its time to load the program it gives error ???? and with luaplayer it dosent ?????? am i missing a code?

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omg... Just look at the structure of the app and how it is loaded. Then replace it with your structurea dn stuff