How I change directory with love.filesystem

[Catzonic]

Hi there everyone I was new I LOVE I was trying to a filesystem that write file in Lua for entities and ingame propertys I want that I save my file in different dictionary not on main LOVE dictionary

[Sasha264]

Good day and welcome!

Sadly, Love2d has some unpleasant restrictions about working with files aside from default savegame directory.
This is caused by some cross-platform features and some security reasons.
With love.filesystem you can only change the name of save directory with love.filesystem.setIdentity but not the full path to it:

Code: Select all

love.filesystem.setIdentity("my_lovely_game_saves")

But there are few ways to get around it:

• You can use Lua functions to write to a file, not the Love ones. But keep in mind that Lua's functions for working with files are not the best and reliable ones.

  Code: Select all

  local file = io.open("D:\\example.txt", "w+")
  file:write("Hello from Lua!")
  file:close()
  

• You can write a file in Love directory and then move it anywhere you want with os Lua functions.

  Code: Select all

  love.filesystem.write("example.txt", "Hello from Love!")
  local src_path = love.filesystem.getSaveDirectory() .. "/example.txt"
  local dst_path = "D:\\example.txt"
  os.rename(src_path, dst_path)
  

• You can do something in C (or potentially some other language) using Lua JIT FFI. Maybe (not sure this will work anywhere, but works for me):

  Code: Select all

  local ffi = require("ffi")
  ffi.cdef([[
      typedef struct FILE FILE;
      FILE* fopen(const char *filename, const char *mode);
      int fprintf(FILE* stream, const char* format, ...);
      int fclose(FILE* stream);
  ]])
  local file = ffi.C.fopen("D:\\example.txt", "w")
  ffi.C.fprintf(file, "Hello from C FFI !")
  ffi.C.fclose(file)
  

• You can use NativeFS library that mostly replicates Love's filesystem, but without restrictions to file paths:https://github.com/EngineerSmith/nativefs

[zorg]

You can also wait for 12.0 to relax the restrictions a bit.