This is a list of known bugs and features that need fixing/implementing:

FEATURES
--------
- Multiplayer support over the internet and local network using tcp/ip.
- Multiplayer support over a local network using IPX.
- Performance improvements.
- Add YUV overlay support.
- Convert all internal rendering to 24-bit.

SAM'S TODO
----------
 - replace write_PCX calls with SDL_WriteSurfaceBMP

ABUSE-TOOL
----------
 - allow to query ids by name rather than by number

DATA MERGE
----------
 - remove registration related code
   - server check in src/net/netdrv.cp
   - server check in src/innet.cpp
   - Lisp symbols server_not_reg and net_not_reg
 - ensure gamma.lsp, hardness.lsp, defaults.prp, edit.lsp etc. are always
   loaded and saved in the config directory, not in the datadir (use
   local_load instead of load?). Same for addon/deathmat/cur_lev.lsp

UNUSED FILES
------------
There may be interesting code in there:
 - src/net:
   - engine.cpp
   - engine.h
   - netdrv.cpp
   - netdrv.h
   - netfile.cpp
   - netfile.h
   - undrv.cpp
 - src:
   - control.cpp
   - control.h
   - fakelib.h
   - go.cpp
   - go.h
   - newlight.cpp
   - old.nfclient.cpp
   - old.nfserver.cpp
   - old_server.cpp
   - oldhelp.cpp
   - server2.cpp
   - server2.h
   - smoosh.cpp
   - unixnfc.cpp

REFACTOR
--------
- move to ivec2:
  - scale_put, scale_put_trans
  - fg_width, etc.

Jwindow::_x1 _x2

VolumeWindow::draw_vol plus grand !!

x, y in game_object?
snap_x() snap_y()
xstart() / xend() etc.
jwindow::area
button::area