How to loading outside .love save file? (love2d+ LUA)

Question

I write editor and game and it requires a save game option. I Just want use a Save folder in game folder. not inside.love

How to get a bug.

Start game
Enter menu by Escape key
Press save game - this create savegame
Press Load game - you get an error "File not exist" but you write this file seconds ago.

I successful save a game in savesm2k folder but it folder outside .love file and i don't know how correct load saved game.

Used engine: Love2d 0.10.2 OS: Linux Mint 18.1 x64bit

I read many manuals and I'm stuck.

For loading save game i use this commands

lsg=love.filesystem.getSaveDirectory().."/M2k-Saves/m2ksave" 
lsg=love.filesystem.getSourceBaseDirectory().."/M2k-Saves/m2ksave"; 
data, size = love.filesystem.read (lsg);
leveldatacopy=freadbin (data);

Why does the program not try read existing file? and report no exist? I try using another command but using GetSaveDirectory broke function WriteMAP (requires for binary map and data writing) etc. but it write files which cannot be loaded in load section.

Maybe I should use LUA for reading files direct from folder but I don't know how to correct DO it.

example with bug. https://github.com/dj--alex/m2ktest file m2ktest-load-savegame-test.love

At this moment on every saving i manually replace saved game inside love archive (!) . This is not normal.

Anybody can tell me how i get and correct open saved file? Not from inside .love file . from outside of course. If levels and configs can be readed from love file inside save files must be outside. I can only can create files outside love file . i know love file is a zip archive.

If required i can post a .love file but is game completely done and have 150kb of clean code.

nobody nobody · Accepted Answer · 2017-06-20T12:32:13

You should not prefix paths with love.filesystem.getSaveDirectory() or love.filesystem.getSourceBaseDirectory(). This is done automatically, internally to the love.filesystem functions. Saying

lsg = "/M2k-Saves/m2ksave" 
data, size = love.filesystem.read (lsg)
leveldatacopy = freadbin (data)

should work, and will place the file in the save directory / outside of the .love file or game directory. (Love forbids writing anywhere except in the save directory.)

Love's filesystem model is like a "stack" of filesystems. For file reading, it first looks in love.filesystem.getSaveDirectory() with whatever path you pass in. If it finds a file, it uses that; otherwise it looks inside the love.filesystem.getSourceBaseDirectory() (or – if packed – inside the .zip / .love file). Writing files always goes to love.filesystem.getSaveDirectory(), you cannot write to love.filesystem.getSourceBaseDirectory() (because it may not be an actual directory but a zip file).

How to loading outside .love save file? (love2d+ LUA)

1 Answers