From the comment in SDL_filesystem.h:
Please call SDL_free() on the pointer when you are done with it

When building the project with MSVC, I ran into some debug heap asserts early into the program startup.
The culprit appears to be the code in m_config.c that does free(prefdir) as changing these to SDL_free(prefdir) resolved the issue.

I'm not sure what to do about `GetDefaultConfi

On latest clang trunk, the code

const char *text = ("Content of this directory moved to " +
							                    xdg_data_home + "/openspades")
							                     .c_str();

in https://github.com/yvt/openspades/blob/master/Sources/Gui/Main.cpp#L428

causes the warning

warning: object backing the pointer will be destroyed at the end of the full-expression [-Wdan

The current console gui tends to get bugged and display only black and I planned to maybe remove it and replace it with a better gui alltogether.
Ideal would be some kind of console that only fills a part of the screen, maybe the upper half or upper third and it being semi transparent so it does not block your view completely.

Currently only two of the six wall parts are marked as "see trough". All the walls (excluding northern wall) are breakable.

Right now, when one cancels connecting, the game goes back to the main menu. I think it would be an improvement on user experience to have the game go back to the connection menu, with the IP remembered.

https://github.com/air/encounter/blob/9670d00b38a3a6056c8e628c636dddca52561279/js/Touch.js#L24
For disable dragging you can add {passive: false} as the third argument to addEventListener

  document.addEventListener('touchmove', function(event) {
    event.preventDefault();
  },{passive: false});

• The json file get statically compiled into the binary
• Reduces build time
• Reduces boiler plate code
• Removal of the EntityTypeProviders