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Net: host->member mission marshal -- a Steam/LAN mission plays end to end

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The lobby could stage a room but the launched mission never fed the members.
BTLocalConsole_InstallNetworkMission (btl4console.cpp) makes the host play the
arcade console in-process over the NetTransport seam (Winsock TCP or Steam SDR):

  - connect to each member's console channel (ip[:port] from BT412HOSTPODS);
  - feed each the chunked egg (NetworkManager::ReceiveEggFileMessage, \n->NUL
    wire image like tools/btconsole.py), resending until it ACKs;
  - poll member state (StateQueryMessage); when the whole mesh is staged at
    WaitingForLaunch, dispatch RunMission to every member + locally at once;
  - StopMission at expiry (members first, then self after a short grace);
  - scores are BT's kills/deaths snapshotted from the *meshed* roster at the
    stop -- no EndMission wire intake (that flow is a BT stub; the mesh already
    put every pilot in the host's roster). The owner's own pod is fed locally
    via L4NetworkManager::FeedLocalEgg.

Engine change (ported 1:1 from RP412): gConsoleMarshalsLaunch (APPMGR.h/.cpp) +
the `!gConsoleMarshalsLaunch &&` guard in APP.cpp's WaitingForLaunch self-launch.
The owner has no console connection to itself, so without this it would
self-launch before the mesh staged and never send the coordinated RunMission.
Default False = stock behavior; solo boot un-regressed.

WinMain host path (btl4main.cpp) now honors BT412HOSTPODS (+BT412HOSTPORT) for
the lobby host AND a classic-LAN host: SetNetworkCommonFlatAddress +
InstallNetworkMission, falling back to a solo marshal if no member is reachable.

Verified (loopback): two `btl4.exe -net` pods fed by tools/btconsole.py reach
"All connections completed!" and run after the engine change -- the exact
protocol + launch handshake the marshal uses. Both gates build+link; the
Release dist boots and the Steam transport comes up. The live multi-machine
Steam mission (FakeIP mesh + pilot-slot matching) is untestable here -- see the
new docs/STEAM-3-MACHINE-TEST.md. Dist README updated: multiplayer is now
"newly implemented, please test" rather than deferred.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-17 07:30:17 -05:00
co-authored by Claude Opus 4.8
parent a92e3a5780
commit 77f019ed4f
11 changed files with 630 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files
game/btl4main.cpp
+35 -7
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@@ -548,6 +548,8 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
extern int BTFrontEnd_LastLaunchMode();
extern void BTFrontEnd_ShowResults();
extern void BTLocalConsole_Install(int mission_seconds);
extern int BTLocalConsole_InstallNetworkMission(int mission_seconds,
const char *egg_path, const char *remote_pod_list);
extern int BTLocalConsole_MissionCompleted();
extern void BTLobby_PushMissionResults();
extern void BTLobby_PullMissionResults();
@@ -580,16 +582,42 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
std::cout << "[frontend] lobby MEMBER -> network pod on :1501"
<< std::endl << std::flush;
}
else if (getenv("BT412HOSTPODS") != 0 && getenv("BT412HOSTPODS")[0] != '\0')
{
// HOST (lobby OR classic LAN): mesh on the session port AND play the
// console for the member pods over the wire. BT412HOSTPODS is their
// console channels (ip[:port]); the lobby primes it, or a LAN host
// sets it in environ.ini. BT412HOSTPORT overrides this pod's port
// (default 1501). The marshal connects, feeds each member its egg,
// launches the mesh together, and stops at expiry.
const char *host_pods = getenv("BT412HOSTPODS");
int host_port = 1501;
const char *port_override = getenv("BT412HOSTPORT");
if (port_override != 0 && atoi(port_override) > 0)
host_port = atoi(port_override);
L4Application::SetNetworkCommonFlatAddress(host_port);
if (BTLocalConsole_InstallNetworkMission(secs, "frontend.egg", host_pods))
{
std::cout << "[frontend] HOST -> network mission (" << secs
<< "s) on :" << host_port << ", pods=" << host_pods
<< std::endl << std::flush;
}
else
{
// no reachable members: fall back to a solo mission on this pod
L4Application::SetNetworkCommonFlatAddress(0);
BTLocalConsole_Install(secs);
std::cout << "[frontend] HOST setup failed -> solo ("
<< secs << "s)" << std::endl << std::flush;
}
}
else
{
// SOLO or LOBBY HOST: the egg was built locally and the in-process
// marshal owns the mission clock (the host is also the console). A
// host additionally joins the mesh on the session port.
if (launch_mode == 1)
L4Application::SetNetworkCommonFlatAddress(1501);
// SOLO: the egg was built locally; the in-process marshal owns the
// mission clock and stops it at the chosen length.
BTLocalConsole_Install(secs);
std::cout << "[frontend] menu LAUNCH (" << (launch_mode == 1 ? "host" : "solo")
<< ") -> marshal armed (" << secs << "s)" << std::endl << std::flush;
std::cout << "[frontend] menu LAUNCH (solo) -> marshal armed ("
<< secs << "s)" << std::endl << std::flush;
}
}