411 lines
22 KiB
C#
411 lines
22 KiB
C#
using System.Collections.Generic;
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using System.Text.Json;
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using System.Threading.Tasks;
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using Godot;
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using Age.Engine.Hosting;
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using Age.Engine.Model;
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using Age.Engine.Sys4;
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using Age.Engine.Vm;
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using Script = Age.Engine.Model.Script; // disambiguate from Godot.Script
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public partial class Main : Godot.Control
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{
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private TextureRect _screenView = null!; // shows the composited screen backbuffer
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private Image _screen = null!; // 800x600 immediate-mode canvas
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private ImageTexture _screenTex = null!;
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private Label _text = null!;
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private Label _status = null!;
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private AudioStreamPlayer _bgm = null!; // looping background music
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private AudioStreamPlayer _voice = null!; // interrupt-on-new voice
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private VirtualMachine _vm = null!;
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private GodotAdvHost _host = null!;
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private readonly Age.Engine.Hosting.FrameClock _clock = new();
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private GodotTraceSink _trace = null!;
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private Age.Engine.Diagnostics.HistogramTraceSink? _hist; // --trace-histogram: profile the real run
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private string? _histFile;
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private Age.Engine.Model.OpcodeTable? _table;
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private bool _histDumped;
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private volatile bool _done;
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private bool _ended;
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private bool _selftest;
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private string? _shotPath; // --shot <png>: capture a page then quit (dev tool)
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private int _shotPage = 1; // --shot-page <n>: which page to capture (default 1)
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private volatile int _pageCount;
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private int _shotSettle;
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private int _shotSettleTarget = 3; // --shot-settle <frames>: settle N frames before grabbing (to
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// capture mid-tween — the anim clock keeps running while parked)
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private bool _shotDone;
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private string? _seqDir; // --shot-sequence <dir>: dump one PNG per frame (verify paced anim)
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private int _seqFrames = 180; // --frames <n>: how many frames to dump (default ~3s @60fps)
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private int _seqIdx;
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public override void _Ready()
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{
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// Screen backbuffer: one 800x600 canvas that draw-texture blits into, shown behind the dialogue.
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_screen = Image.CreateEmpty(800, 600, false, Image.Format.Rgba8);
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_screenTex = ImageTexture.CreateFromImage(_screen);
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_screenView = new TextureRect
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{
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Texture = _screenTex,
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ExpandMode = TextureRect.ExpandModeEnum.IgnoreSize,
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StretchMode = TextureRect.StretchModeEnum.Scale,
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MouseFilter = MouseFilterEnum.Ignore,
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};
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_screenView.SetAnchorsAndOffsetsPreset(LayoutPreset.FullRect);
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AddChild(_screenView); // added first -> draws behind the text/status labels
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_text = new Label { AutowrapMode = TextServer.AutowrapMode.WordSmart };
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_text.SetAnchorsAndOffsetsPreset(LayoutPreset.FullRect);
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_text.OffsetLeft = 40; _text.OffsetTop = 40; _text.OffsetRight = -40; _text.OffsetBottom = -80;
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AddChild(_text);
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_status = new Label();
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_status.SetAnchorsAndOffsetsPreset(LayoutPreset.BottomWide);
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_status.OffsetLeft = 40; _status.OffsetTop = -60;
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AddChild(_status);
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// Best-effort CJK font so the visual isn't tofu (headless self-test doesn't depend on it).
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foreach (var fp in new[] { "C:/Windows/Fonts/YuGothM.ttc", "C:/Windows/Fonts/YuGothR.ttc",
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"C:/Windows/Fonts/msgothic.ttc", "C:/Windows/Fonts/meiryo.ttc" })
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{
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if (!System.IO.File.Exists(fp)) continue;
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try
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{
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var ff = new FontFile { Data = System.IO.File.ReadAllBytes(fp) };
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_text.AddThemeFontOverride("font", ff);
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_status.AddThemeFontOverride("font", ff);
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_text.AddThemeFontSizeOverride("font_size", 22);
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break;
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}
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catch { /* fall back to the default font */ }
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}
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_bgm = new AudioStreamPlayer();
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_voice = new AudioStreamPlayer();
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AddChild(_bgm);
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AddChild(_voice);
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var userArgs = OS.GetCmdlineUserArgs();
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_selftest = System.Array.IndexOf(userArgs, "--selftest") >= 0;
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bool boot = System.Array.IndexOf(userArgs, "--boot") >= 0; // run SYSTEM4's state prefix first
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string scene = "SC0000"; // --scene <NAME>: which scene to play (default SC0000)
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var seeds = new List<(int Addr, long Val)>(); // --seed 0xADDR=VAL (repeatable) — initial global state
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double sleepScale = 1.0; // --sleep-scale <f>: slow/speed the paced opening for inspection
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string? histFile = null; // --trace-histogram <file>: op/call-site execution counts of the REAL run
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for (int i = 0; i < userArgs.Length; i++)
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{
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if (userArgs[i] == "--scene" && i + 1 < userArgs.Length) scene = userArgs[i + 1];
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if (userArgs[i] == "--shot" && i + 1 < userArgs.Length) _shotPath = userArgs[i + 1];
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if (userArgs[i] == "--shot-page" && i + 1 < userArgs.Length) int.TryParse(userArgs[i + 1], out _shotPage);
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if (userArgs[i] == "--shot-settle" && i + 1 < userArgs.Length) int.TryParse(userArgs[i + 1], out _shotSettleTarget);
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if (userArgs[i] == "--shot-sequence" && i + 1 < userArgs.Length) _seqDir = userArgs[i + 1];
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if (userArgs[i] == "--frames" && i + 1 < userArgs.Length) int.TryParse(userArgs[i + 1], out _seqFrames);
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if (userArgs[i] == "--sleep-scale" && i + 1 < userArgs.Length) double.TryParse(userArgs[i + 1], out sleepScale);
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if (userArgs[i] == "--trace-histogram" && i + 1 < userArgs.Length) histFile = userArgs[i + 1];
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if (userArgs[i] == "--seed" && i + 1 < userArgs.Length)
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{
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var kv = userArgs[i + 1].Split('=');
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if (kv.Length == 2)
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{
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int k = kv[0].StartsWith("0x") ? System.Convert.ToInt32(kv[0], 16) : int.Parse(kv[0]);
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long v = kv[1].StartsWith("0x") ? System.Convert.ToInt64(kv[1], 16) : long.Parse(kv[1]);
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seeds.Add((k, v));
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}
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}
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}
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var table = OpcodeTableJson.Load(Paths.OpcodesJson);
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// Full op handling everywhere: the provider lets call-script load & run subroutines. Selftest
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// runs a SYNTHESIZED scene (not a real scene in a crippled mode) so its output is deterministic.
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Script script;
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IScriptProvider provider;
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if (_selftest) (script, provider) = BuildSelfTestScene(table);
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else { script = Sys4Loader.Load(Paths.Scripts()[scene.ToUpperInvariant() + ".BIN"], table); provider = Sys4ScriptProvider.Load(table); }
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_host = new GodotAdvHost(this, ResourceMap.Load(), scene, _clock) { SleepScale = sleepScale };
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_trace = new GodotTraceSink();
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// --trace-histogram: aggregate op/call-site execution counts of the REAL Godot run (headless flow
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// diverges — wait-for-input is a no-op there — so this is the only way to profile the live path).
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_table = table;
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_histFile = histFile;
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Age.Engine.Diagnostics.ITraceSink sink = _trace;
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if (histFile != null) { _hist = new Age.Engine.Diagnostics.HistogramTraceSink();
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sink = new Age.Engine.Diagnostics.CompositeTraceSink(_trace, _hist); }
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_vm = new VirtualMachine(script, table, _host, new VmOptions(MaxSteps: 20_000_000), provider, sink);
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// --boot: run SYSTEM4's state prefix (INITCONFIG/INIT2/INIT) so the scene sees boot state — chiefly
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// INIT2's gfx handle array 0x62455.. (skips the UI scripts LOGO/OP/TITLE). State carries via globals.
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if (boot && !_selftest)
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{
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var session = new GameSession();
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foreach (var b in new[] { "INITCONFIG.BIN", "INIT2.BIN", "INIT.BIN" })
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session.RunScene(Sys4Loader.Load(Paths.Scripts()[b], table), table, new CaptureHost(), null, provider);
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foreach (var kv in session.Globals) _vm.Globals[kv.Key] = kv.Value;
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foreach (var kv in session.GlobalStrings) _vm.GlobalStrings[kv.Key] = kv.Value;
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GD.Print($"[boot] system boot done: {session.Globals.Count} globals seeded");
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}
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foreach (var (addr, val) in seeds) _vm.Globals[addr] = val; // --seed overrides boot state
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_ = Task.Run(() => { _vm.Run(); _done = true; });
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if (_selftest)
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_ = Task.Run(async () => { while (!_done) { if (_host.IsWaiting) _host.SignalInput(); await Task.Delay(1); } });
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// --shot: auto-advance up to (but not past) the target page, then _Process captures + quits.
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if (_shotPath != null)
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_ = Task.Run(async () => { while (!_done) { if (_host.IsWaiting && _host.Pages < _shotPage) _host.SignalInput(); await Task.Delay(1); } });
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// --shot-sequence: auto-advance past every input wait so the paced burst isn't blocked on a click.
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if (_seqDir != null)
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_ = Task.Run(async () => { while (!_done) { if (_host.IsWaiting) _host.SignalInput(); await Task.Delay(1); } });
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}
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public override void _Process(double delta)
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{
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_lastDelta = delta;
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_clock.Advance(delta);
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_host?.PulseFrame();
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if (!_selftest && _vm != null) Recomposite(); // retained per-frame compositor (surface+object model)
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// --shot-sequence: dump one PNG per frame across the opening so a time-based (paced) effect can be
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// verified as distinct frames, not just the final state. Captures after Recomposite; quits when full.
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if (_seqDir != null && _seqIdx < _seqFrames && !_done)
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{
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System.IO.Directory.CreateDirectory(_seqDir);
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// Headless has no rendered viewport texture (GetImage() is null). Still advance/count/quit so the
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// real-run trace-histogram can profile the live path without a display; only the PNG grab is skipped.
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var fimg = GetViewport().GetTexture()?.GetImage();
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fimg?.SavePng($"{_seqDir}/frame_{_seqIdx:0000}.png");
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_seqIdx++;
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if (_seqIdx >= _seqFrames) { GD.Print($"SEQ saved {_seqIdx} frames -> {_seqDir}"); GetTree().Quit(0); }
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return;
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}
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// --shot: once the target page is composed and parked at wait-for-input, settle a few frames then grab it.
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if (_shotPath != null && !_shotDone && (_host.Pages >= _shotPage && _host.IsWaiting || _done))
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{
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if (++_shotSettle >= _shotSettleTarget)
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{
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_shotDone = true;
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var img = GetViewport().GetTexture().GetImage();
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img.SavePng(_shotPath);
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GD.Print($"SHOT saved page {_pageCount} -> {_shotPath}");
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ReportSubroutines();
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GetTree().Quit(0);
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}
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return;
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}
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if (_done && !_ended)
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{
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_ended = true;
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DumpHistogram();
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ReportSubroutines();
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ShowEnd();
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if (_selftest) RunSelfTest();
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}
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}
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// _Input (not _UnhandledInput): the root Control consumes mouse clicks as GUI input before they
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// reach _UnhandledInput, so clicks were swallowed while keyboard ui_accept still got through.
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public override void _Input(InputEvent e)
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{
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if (_selftest) return;
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if (e.IsActionPressed("ui_accept") ||
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(e is InputEventMouseButton mb && mb.Pressed && mb.ButtonIndex == MouseButton.Left))
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_host.SignalInput();
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}
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public override void _ExitTree() { DumpHistogram(); _host?.SignalInput(); }
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// Write the real-run op/call-site histogram to --trace-histogram <file>. Idempotent; called when the
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// scene ends or the window closes (the opening parks at wait-for-input, so closing is the usual trigger).
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private void DumpHistogram()
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{
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if (_histDumped || _hist == null || _histFile == null) return;
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_histDumped = true;
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try
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{
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var dir = System.IO.Path.GetDirectoryName(_histFile);
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if (!string.IsNullOrEmpty(dir)) System.IO.Directory.CreateDirectory(dir);
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using var w = new System.IO.StreamWriter(_histFile);
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_hist.WriteReport(w, _table);
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GD.Print($"[trace-histogram] wrote {_hist.TotalSteps} steps -> {_histFile}");
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}
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catch (System.Exception e) { GD.Print($"[trace-histogram] write failed: {e.Message}"); }
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}
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// ---- retained per-frame compositor (main thread, from _Process) ----
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// Clear the screen and composite the VM's current VISIBLE gfx objects in ascending-handle order (= the
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// engine's z-order), each blitting its live surface's rect at its position. Surfaces are cached by BMP
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// path (this runs every frame). Animated objects tween over the global anim-clock (0x238); their opacity
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// is applied by the alpha-aware BlitLayer. See docs/engine-re.md "sprite transform / ANIMATION cluster".
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private readonly System.Collections.Generic.Dictionary<string, Image?> _imgCache = new();
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// Per-handle wall-clock tween of the animation channel. The engine's clock (op 0x238) is a GLOBAL,
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// non-blocking clock; the host advances it here while the VM is parked at wait-for-input. Opacity comes
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// from the 3rd anim vec component (TZ), data-driven from the opening (100=full, 0=clear).
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private sealed class TweenState
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{
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public long Generation = long.MinValue;
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public bool Initialized;
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public double Elapsed, Duration;
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public double StartA, TargetA, CurrentA = 1.0;
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}
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private readonly System.Collections.Generic.Dictionary<long, TweenState> _tweens = new();
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private long _lastClockGen = long.MinValue;
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private double _lastDelta;
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private const double GameTickSeconds = 1.0 / 60.0; // anim-clock ticks -> seconds (game runs ~60fps)
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private void Recomposite()
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{
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_screen.Fill(new Color(0, 0, 0, 0));
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long clockGen = _vm.Gfx.AnimClockGeneration;
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double clockDur = System.Math.Max(1, _vm.Gfx.AnimClockDurationTicks) * GameTickSeconds;
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bool clockReset = clockGen != _lastClockGen;
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_lastClockGen = clockGen;
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foreach (var v in _vm.Gfx.SnapshotVisibleObjects()) // already ascending-handle = z-order
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{
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if (v.SurfaceResId == 0) continue; // render-target/blank surface (no file) — later phase
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var bmp = _host.ResolveResIdTexture(v.SurfaceResId);
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if (bmp == null) continue;
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BlitLayer(bmp, v.SrcX, v.SrcY, v.W, v.H, v.DstX, v.DstY, AlphaFor(v, clockReset, clockDur));
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}
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_screenTex.Update(_screen);
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}
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// Current opacity for a visible object: 1.0 unless it has an active anim channel, in which case tween the
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// 3rd vec component (TZ, ~percent) over the global clock. Start opaque on first sight so a CG never
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// begins invisible (the safe direction); re-arm whenever the object's or the clock's generation bumps.
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private float AlphaFor(Age.Engine.Model.RenderObject v, bool clockReset, double clockDur)
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{
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if (!v.Anim.Enabled) return 1f;
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var tw = _tweens.TryGetValue(v.Handle, out var t) ? t : (_tweens[v.Handle] = new TweenState());
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double targetA = System.Math.Clamp(v.Anim.TZ / 100.0, 0, 1);
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if (clockReset || tw.Generation != v.Anim.Generation)
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{
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tw.Generation = v.Anim.Generation;
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tw.Elapsed = 0; tw.Duration = clockDur;
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tw.StartA = tw.Initialized ? tw.CurrentA : 1.0; // hold previous on-screen alpha; first sight opaque
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tw.TargetA = targetA;
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tw.Initialized = true;
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}
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tw.Elapsed += _lastDelta * _clock.Speed; // Speed==1 now => identical; future Ctrl scales the tween
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double p = tw.Duration > 0 ? System.Math.Clamp(tw.Elapsed / tw.Duration, 0, 1) : 1;
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tw.CurrentA = tw.StartA + (tw.TargetA - tw.StartA) * p;
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return (float)tw.CurrentA;
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}
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private void BlitLayer(string bmpPath, int srcX, int srcY, int w, int h, int dstX, int dstY, float alpha = 1f)
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{
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if (!_imgCache.TryGetValue(bmpPath, out var src))
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{
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src = new Image();
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if (src.LoadBmpFromBuffer(System.IO.File.ReadAllBytes(bmpPath)) != Error.Ok)
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{ GD.Print($"BMP load failed {bmpPath}"); src = null; }
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else if (src.GetFormat() != Image.Format.Rgba8) src.Convert(Image.Format.Rgba8);
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_imgCache[bmpPath] = src;
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}
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if (src == null) return;
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// Clamp the source rect to the image; a zero/negative size falls back to the full image.
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int sw = w > 0 ? w : src.GetWidth();
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int sh = h > 0 ? h : src.GetHeight();
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sw = System.Math.Min(sw, src.GetWidth() - srcX);
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sh = System.Math.Min(sh, src.GetHeight() - srcY);
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if (sw <= 0 || sh <= 0) return;
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if (alpha >= 0.999f) // fast opaque path (unchanged behaviour for non-animating objects)
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{
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_screen.BlitRect(src, new Rect2I(srcX, srcY, sw, sh), new Vector2I(dstX, dstY));
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return;
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}
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// Alpha composite over the raw RGBA byte buffer: out = src*(sa) + dst*(1-sa), sa = srcAlpha * objAlpha.
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byte[] dst = _screen.GetData(); byte[] ss = src.GetData();
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int dw = _screen.GetWidth(), sfw = src.GetWidth();
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int ia = (int)(System.Math.Clamp(alpha, 0f, 1f) * 255);
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for (int y = 0; y < sh; y++)
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for (int x = 0; x < sw; x++)
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{
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int dxp = dstX + x, dyp = dstY + y;
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if (dxp < 0 || dyp < 0 || dxp >= dw || dyp >= _screen.GetHeight()) continue;
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int di = (dyp * dw + dxp) * 4;
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int si = ((srcY + y) * sfw + (srcX + x)) * 4;
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int sa = ss[si + 3] * ia / 255;
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for (int c = 0; c < 3; c++) dst[di + c] = (byte)((ss[si + c] * sa + dst[di + c] * (255 - sa)) / 255);
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dst[di + 3] = (byte)System.Math.Min(255, dst[di + 3] + sa);
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}
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_screen.SetData(dw, _screen.GetHeight(), false, _screen.GetFormat(), dst);
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}
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// Load an OGG off disk and play it. BGM loops; voice plays once, cutting off any prior line.
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public void PlayBgm(string oggPath)
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{
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var stream = AudioStreamOggVorbis.LoadFromBuffer(System.IO.File.ReadAllBytes(oggPath));
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if (stream == null) { GD.Print($"OGG load failed {oggPath}"); return; }
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stream.Loop = true;
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_bgm.Stream = stream;
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_bgm.Play();
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}
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public void PlayVoice(string oggPath)
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{
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var stream = AudioStreamOggVorbis.LoadFromBuffer(System.IO.File.ReadAllBytes(oggPath));
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if (stream == null) { GD.Print($"OGG load failed {oggPath}"); return; }
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stream.Loop = false;
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_voice.Stream = stream;
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_voice.Play();
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}
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public void AppendLine(string text) => _text.Text += text + "\n";
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public void PageBreak() { _pageCount++; _status.Text = "▼ click / Enter"; }
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public void ClearPage() { _text.Text = ""; _status.Text = ""; }
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public void ShowEnd() => _status.Text = "— end —";
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// The selftest verifies the GODOT PLUMBING (background thread + semaphore suspend on wait-for-input
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// + CallDeferred marshalling) drives the VM faithfully — i.e. produces the SAME output as a plain
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// in-process run of the identical scene. Full op handling is on (the synthetic scene includes a real
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// nested call-script); the expected value is computed live from a headless run, not a frozen golden.
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// Reports (from the main thread) the call-scripts the VM executed as nested subroutines this run.
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private void ReportSubroutines()
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{
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var ids = new List<long>();
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while (_trace.CallScripts.TryDequeue(out var id)) ids.Add(id);
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if (ids.Count == 0) { GD.Print("[subroutines] none dispatched on this path"); return; }
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var distinct = new List<string>();
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foreach (var id in ids) { var h = "0x" + id.ToString("x"); if (!distinct.Contains(h)) distinct.Add(h); }
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GD.Print($"[subroutines] {ids.Count} call-scripts executed as nested frames ({distinct.Count} distinct: {string.Join(", ", distinct)})");
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}
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private void RunSelfTest()
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{
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var table = OpcodeTableJson.Load(Paths.OpcodesJson);
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var (script, provider) = BuildSelfTestScene(table);
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var headless = new VirtualMachine(script, table, new CaptureHost(), null, provider);
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headless.Run();
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var expected = headless.Emitted.ConvertAll(e => e.Offset);
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var actual = _host.Captured.ConvertAll(c => c.Offset);
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bool ok = actual.Count == expected.Count;
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for (int i = 0; ok && i < actual.Count; i++) ok = actual[i] == expected[i];
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if (ok) GD.Print($"SELFTEST OK: threaded host matches headless ({actual.Count} lines, full handling)");
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else GD.Print($"SELFTEST FAIL: threaded={actual.Count} vs headless={expected.Count}");
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GetTree().Quit(ok ? 0 : 1);
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}
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// A deterministic synthesized scene: show-text, wait-for-input (exercises the suspend plumbing), a
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// nested call-script into a synthetic subroutine (exercises call-script handling), shared globals.
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private static (Script, IScriptProvider) BuildSelfTestScene(OpcodeTable table)
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{
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(int, Operand[]) ShowText(int s) => (0x6e, new[] { new Operand(2, s), new Operand(0, 0) });
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(int, Operand[]) Wait() => (0x72, new[] { new Operand(0, 0) });
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(int, Operand[]) CallScript(long id) => (0x3, new[] { new Operand(0, id) });
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(int, Operand[]) MovGG(int d, int s) => (0x55, new[] { new Operand(3, d), new Operand(3, s) });
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(int, Operand[]) MovGI(int d, long v) => (0x55, new[] { new Operand(3, d), new Operand(0, v) });
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(int, Operand[]) Exit() => (0x2, System.Array.Empty<Operand>());
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var callee = ScriptAssembler.Assemble(table, "SUBSCENE",
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new List<(int, Operand[])> { ShowText(0), MovGI(0x31, 42), Exit() }, new[] { "Sub" });
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var caller = ScriptAssembler.Assemble(table, "SELFTEST",
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new List<(int, Operand[])> { ShowText(0), Wait(), ShowText(1), CallScript(5), MovGG(0x30, 0x31), Exit() },
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new[] { "Hello", "World" });
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return (caller, new SelfTestProvider(callee));
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}
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private sealed class SelfTestProvider : IScriptProvider
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{
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private readonly Script _callee;
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public SelfTestProvider(Script callee) => _callee = callee;
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public Script? GetById(long id) => id == 5 ? _callee : null;
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}
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}
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