How do I use dataSaver?

Zizanyman · June 2015

I am using dataSaver in my project, and I am confused about how it saves files. When I run this line of code, would it automatically create a file, or do I need to create one manually?

dataSaver.saveValue("|D|hiscore", hiscore)
local hiscore = dataSaver.loadValue("|D|hiscore")
hiscoreText:setText(hiscore)

The reason I am confused is because when I run my game in gideros player, it will remember the hi score in my code until I close the player. It even will remember the value throughout scenes. But once I close the player and open it again, it thinks that the hiscore is nil.

SinisterSoft · June 2015

You need to save it before exit. It doesn't automatucally save.

jeromegsq · June 2015

In my init file i have this :

local fileLoad = io.open("|D|save","r")
if not fileLoad then
       dataSaver.saveValue("highscore", 0)
 
	print("no file, it was created")
end

and after in my code :

Save :

local score = 10
dataSaver.saveValue("highscore", score )

Load :

local res = dataSaver.loadValue("highscore")

Voila

ar2rsawseen · June 2015

initially you could also do something like:

local res = dataSaver.loadValue("highscore")
if res == nil then
    dataSaver.saveValue("highscore", 0)
end

And you can also use something like this in your main file, so you won't have to do write operation on each update (cause write operations are really costly)

stage:addEventListener(Event.APPLICATION_SUSPEND, function()
    dataSaver.saveValue("highscore", score )
end)
stage:addEventListener(Event.APPLICATION_EXIT, function()
    dataSaver.saveValue("highscore", score )
end)

So it would only save score upon suspending or exiting app

Zizanyman · June 2015

@jeromehsq and @ar2sawseen, I tried both methods, and for some reason, neither worked. I also added this line of code to the "if res == nil then" statement:

print ("no file")

and it doesn't print this out when I start the game. So it seems to see a highscore file, but that it is 0.

Also, if I use io.open, do I need to have an actual file called "save" in my project directory, or does it handle that part for me when I use dataSaver.saveValue?

Thanks!

Zizanyman · June 2015

Never mind! I just forgot to add:

hiscore = res

Thanks for all your help!

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