2.7 KiB
Flashpoint streamer (prototype)
Runs a Flashpoint game natively on the server and streams it to the browser with
Selkies, for platforms that cannot
run in a browser. One container plays one game, set by GAME_ID. It launches
games the way Flashpoint's Linux launcher does, so Java applets, Shockwave,
Flash and Windows games installed under LocalGames/ (see
local-games) all run.
Requirements
A Linux Flashpoint install at FLASHPOINT_HOST_PATH. The streamer uses the
Infinity build's Server/FlashpointGameServer, FPSoftware/Java and
FPSoftware/Wine, which
Ultimate's packed zips do not include on Linux. To add them to an extracted
Ultimate without overwriting its data, copy an extracted
Infinity for Linux over it:
rsync -a --ignore-existing /path/to/infinity/ /path/to/flashpoint/
Usage
FLASHPOINT_HOST_PATH=/path/to/flashpoint docker compose up -d --build
Open https://<host>:3001 and accept the self-signed certificate. To play a
different game, set GAME_ID, plus GAME_WIDTH and GAME_HEIGHT to its
window size, and recreate the container. The launch log is at
/config/fp-launch.log inside the container.
How it works
fp-launch follows the Flashpoint launcher's Linux launch sequence: it starts
the game server, mounts the game's zip through the server's mountzip API, and
runs the game's application with its HTTP proxy pointed at the game server.
Selkies restarts the game when it exits (RESTART_APP).
appletviewer lacks two things applets got from the browser's Java plugin, so
the image adds them: a netscape.javascript.JSObject stand-in whose window has
a document.cookie that persists to /config/saves/cookies.txt, and a policy
allowing HTTP requests through the game server's proxy. The same jar
(applet-support/) is loaded as a Java agent that removes appletviewer's menu
bar and status line.
Other games go through fp-command, which applies the launcher's rules: it maps
the application path through Data/execs.json, swaps .bat for .sh, and runs
.exe files under Flashpoint's bundled Wine. Windows programs run from a
writable mirror of the install, since they write beside themselves; a
Director projector's Prefs, where it saves, is linked into /config/saves, as
is Flash Player's save directory, so the session manager syncs both to the
player's browser. OldCPUSimulator hangs under Wine, so its target runs under
cpulimit at the same share of the CPU. Flash projectors switch to full screen,
which hides their menu bar and scales the movie to the display, and Flashpoint
Navigator's toolbars are hidden.