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Implement system menu guard opcode

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gamer147
2026-07-29 14:25:29 -04:00
parent 0c7d77805e
commit 2065a1c504
8 changed files with 156 additions and 12 deletions
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9
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -88,6 +88,9 @@ public sealed class VirtualMachine
private AdvTextStyle _advTextStyle = AdvTextStyle.Default;
private int _messageWindowAlphaSetting;
private int _messageGlyphDelayMilliseconds;
// EngineCtx +0xa0d10: AGERC queries this through IAGEService to gray its native
// settings/save menu actions while CONFIG owns the scripted settings screen.
private int _systemMenuActionsEnabled = 1;
private readonly Dictionary<string, int> _valueSwitchTargets = new(StringComparer.Ordinal);
// Native EngineCtx owns 11 lazily allocated integer FIFOs at +0x55130. ATSEEK/MVSEEK use
// slot zero as their packed-coordinate flood-fill worklist; op 0x132 replaces a slot.
@@ -111,6 +114,7 @@ public sealed class VirtualMachine
public long Steps { get; private set; }
public bool AutoMessageEnabled => _autoMessageEnabled;
public bool MessageSkipEnabled => _messageSkipEnabled;
public int SystemMenuActionsEnabled => _systemMenuActionsEnabled;
public string PendingDiagnosticText => _diagnosticOutput.PendingText;
/// <summary>
/// Zero-based active-frame cutoff selected by opcode 0x1ad, or null when no surviving marker
@@ -781,6 +785,7 @@ public sealed class VirtualMachine
_advSkipServiceEnabled = false;
_advReadSkipState = false;
_advTextStyle = AdvTextStyle.Default;
_systemMenuActionsEnabled = 1;
TextHistory.SetRecordingEnabled(true);
_host.SetMessageSkipActive(false);
_host.SetPhysicalMessageSkipActive(false);
@@ -2334,6 +2339,10 @@ public sealed class VirtualMachine
_messageWindowAlphaSetting = (int)Read(a[0]);
_host.SetMessageWindowAlphaSetting(_messageWindowAlphaSetting);
return pc + 1;
case "set-system-menu-enabled": // 0x142: native AGERC menu reentrancy guard
case "u0041FB10": // pre-reference compatibility
_systemMenuActionsEnabled = unchecked((int)Read(a[0]));
return pc + 1;
case "get-message-glyph-delay": // 0x7f
case "u00414C60":
Write(a[0], _messageGlyphDelayMilliseconds); return pc + 1;