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fix: add state machine validation and fix vote/captain disconnect handling #136

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fix: add state machine validation and fix vote/captain disconnect handling #136

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4b299bf
fix: add state machine validation and fix vote concurrency on captain…
Flegma Apr 8, 2026
75eac58
fix: allow Surrendered -> Finished transition in state machine
Flegma Apr 8, 2026
78d8b57
fix: remove disconnected player votes from all active vote systems
Flegma Apr 8, 2026
bc4f2c6
fix: validate state transition before running backup check
Flegma Apr 8, 2026
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5 changes: 5 additions & 0 deletions src/FiveStack.Events/PlayerDisconnected.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,11 @@ public HookResult OnPlayerDisconnect(EventPlayerDisconnect @event, GameEventInfo
match.captainSystem.RemoveCaptain(@event.Userid);
}

_surrenderSystem.surrenderingVote?.RemovePlayerVote(player.SteamID);
_timeoutSystem.pauseVote?.RemovePlayerVote(player.SteamID);
_timeoutSystem.resumeVote?.RemovePlayerVote(player.SteamID);
_gameBackupRounds.restoreRoundVote?.RemovePlayerVote(player.SteamID);

if (match.IsInProgress())
{
if (match.IsFreezePeriod())
Expand Down
2 changes: 1 addition & 1 deletion src/FiveStack.Services/CaptainSystem.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ public void RemoveCaptain(CCSPlayerController player)

if (
match == null
|| !match.IsWarmup()
|| !(match.IsWarmup() || match.IsKnife())
|| team == CsTeam.None
|| team == CsTeam.Spectator
|| _captains[team] == null
Expand Down
82 changes: 82 additions & 0 deletions src/FiveStack.Services/MatchManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,76 @@ namespace FiveStack;

public class MatchManager
{
private static readonly Dictionary<eMapStatus, HashSet<eMapStatus>> _allowedTransitions =
new()
{
{
eMapStatus.Unknown,
new HashSet<eMapStatus>
{
eMapStatus.Scheduled,
eMapStatus.Warmup,
eMapStatus.Knife,
eMapStatus.Live,
eMapStatus.Paused,
eMapStatus.Overtime,
eMapStatus.Finished,
eMapStatus.Surrendered,
eMapStatus.UploadingDemo,
}
},
{ eMapStatus.Scheduled, new HashSet<eMapStatus> { eMapStatus.Warmup } },
{
eMapStatus.Warmup,
new HashSet<eMapStatus>
{
eMapStatus.Knife,
eMapStatus.Live,
eMapStatus.Paused,
}
},
{
eMapStatus.Knife,
new HashSet<eMapStatus> { eMapStatus.Live, eMapStatus.Paused }
},
{
eMapStatus.Live,
new HashSet<eMapStatus>
{
eMapStatus.Paused,
eMapStatus.Finished,
eMapStatus.Overtime,
eMapStatus.Surrendered,
eMapStatus.UploadingDemo,
}
},
{
eMapStatus.Overtime,
new HashSet<eMapStatus>
{
eMapStatus.Paused,
eMapStatus.Finished,
eMapStatus.Surrendered,
eMapStatus.UploadingDemo,
}
},
{
eMapStatus.Paused,
new HashSet<eMapStatus>
{
eMapStatus.Live,
eMapStatus.Warmup,
eMapStatus.Overtime,
eMapStatus.Knife,
eMapStatus.Finished,
eMapStatus.Surrendered,
}
},
{ eMapStatus.UploadingDemo, new HashSet<eMapStatus> { eMapStatus.Finished } },
{ eMapStatus.Finished, new HashSet<eMapStatus>() },
{ eMapStatus.Surrendered, new HashSet<eMapStatus> { eMapStatus.Finished } },
};

private MatchData? _matchData;
private eMapStatus _currentMapStatus = eMapStatus.Unknown;
private Timer? _resumeMessageTimer;
Expand Down Expand Up @@ -265,6 +335,18 @@ public void UpdateMapStatus(eMapStatus status, Guid? winningLineupId = null)

_logger.LogInformation($"Update Map Status {_currentMapStatus} -> {status}");

if (
_currentMapStatus != eMapStatus.Unknown
&& _allowedTransitions.TryGetValue(_currentMapStatus, out var allowed)
&& !allowed.Contains(status)
)
{
_logger.LogWarning(
$"Illegal map status transition {_currentMapStatus} -> {status}, ignoring"
);
return;
}

if (_currentMapStatus == eMapStatus.Unknown)
{
_backUpManagement.CheckForBackupRestore();
Expand Down
5 changes: 2 additions & 3 deletions src/FiveStack.Services/VoteSystem.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -319,7 +319,7 @@ private void CheckVotes(bool fail = false)

if (IsCaptainVoteOnly())
{
if (_votes.Count < 2)
if (_votes.Count < expectedVoteCount)
{
if (fail)
{
Expand All @@ -328,7 +328,7 @@ private void CheckVotes(bool fail = false)
return;
}

if (totalYesVotes >= 2)
if (totalYesVotes >= Math.Ceiling(expectedVoteCount / 2.0))
{
VoteSuccess();
return;
Expand Down Expand Up @@ -367,7 +367,6 @@ private int GetExpectedVoteCount()
.Where(player =>
{
return CanVote(player);
;
})
.ToList();

Expand Down
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