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Implement forced BGM opcodes

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This commit is contained in:
gamer147
2026-07-29 12:38:54 -04:00
parent 137fae848f
commit 2908d38663
14 changed files with 259 additions and 45 deletions
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27
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -786,6 +786,17 @@ public sealed class VirtualMachine
_host.ResetSceneContext();
}
private void RestartBgm(long requestedTrackId, int startMode)
{
if (requestedTrackId != 0)
_currentBgmTrackId = requestedTrackId;
if (_currentBgmTrackId == 0)
_host.StopBgm();
else
_host.RestartBgm(_currentBgmTrackId, startMode);
}
private FrameOutcome RunFrame(ExecFrame frame, FrameCause cause, long callId = 0)
{
ExecFrame? previousInteractiveFrame;
@@ -2421,6 +2432,16 @@ public sealed class VirtualMachine
}
return pc + 1;
}
case "restart-bgm-loop": // 0xb7: force start, including current-track/zero alias
RestartBgm(Read(a[0]), 1);
return pc + 1;
case "stop-bgm": // 0xb8: release source and clear retained track
_currentBgmTrackId = 0;
_host.StopBgm();
return pc + 1;
case "restart-bgm-once": // 0xb9: force start without decoder rewind at EOF
RestartBgm(Read(a[0]), 0);
return pc + 1;
case "get-current-bgm-track":
Write(a[0], _currentBgmTrackId);
return pc + 1;
@@ -2464,7 +2485,11 @@ public sealed class VirtualMachine
{
int targetPercent = (int)Read(a[0]);
_host.FadeBgm(targetPercent, Read(a[1]));
if (targetPercent == 0) _currentBgmTrackId = 0;
if (targetPercent == 0)
{
_currentBgmTrackId = 0;
_host.StopBgm();
}
return pc + 1;
}
case "get-audio-volume": // 0xc5 (category)(out basis points)