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jumping to an offset..

 
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xmOD



Joined: 29 Apr 2006
Posts: 10
PostPosted: Tue Jan 09, 2007 3:24 am    Post subject: jumping to an offset.. Reply with quote
Hey,

i am new to LUA and dont know much indepth about it..

My question is.. Say for example i have a file containing many lines of text/code... Now what i want to do is when i press the button 'x' then the screen should show the text which is on the offset 0x0002DE0 , how can i do this?

this is the kind of code i am using at the moment..

Code:
somecolor = Color.new(0, 150, 150)

while true do
screen:clear()

y = 10
file = io.open("Filename.txt","r")
for line in file:lines() do
y = y + 10
screen:print(100,y,line,somecolor)
end

pad = Controls.read()
if pad:cross() then
<insert the jump code here>
end

if pad:triangle() then
Break
end

screen.waitVblankStart()
screen.flip()
end
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Roland35007



Joined: 07 Jan 2007
Posts: 7
PostPosted: Thu Jan 18, 2007 12:23 am    Post subject: Offset Reply with quote
What you are trying to do sounds like walking through a file in Binary Random mode. Perhaps when you open a file, you should use the binary switch (b)
like

file = io.open("Filename.txt","rb")

According to the lua 5 manual you should be able to jump to your offset with the instruction file:seek

Good luck!
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