feat(vfx): port retail effect scheduling and delivery
This commit is contained in:
Erik
parent
363e046112
commit
96ddfdf175
28 changed files with 2473 additions and 691 deletions
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@ -1,273 +1,400 @@
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using System;
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using System.Collections.Generic;
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using System.Numerics;
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using AcDream.Core.Physics;
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using DatReaderWriter.Types;
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// Local (AcDream.Core.Vfx) has its own stub `PhysicsScript` type in
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// VfxModel.cs; alias the dat-reader type to avoid name collision.
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using DatPhysicsScript = DatReaderWriter.DBObjs.PhysicsScript;
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namespace AcDream.Core.Vfx;
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/// <summary>
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/// Retail-verbatim port of the AC <c>PhysicsScript</c> runtime —
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/// a time-ordered list of <see cref="AnimationHook"/>s scheduled by
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/// <see cref="PhysicsScriptData.StartTime"/> (seconds from script
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/// start). Every visible effect the server triggers via the
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/// <c>PlayScript</c> opcode (0xF754) flows through this runner:
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/// spell casts, emote gestures, combat flinches, AND — per the
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/// 2026-04-23 lightning research — weather lightning flashes.
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///
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/// <para>
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/// Decompile provenance (see
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/// <c>docs/research/2026-04-23-physicsscript.md</c> and
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/// <c>docs/research/2026-04-23-lightning-real.md</c>):
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/// <list type="bullet">
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/// <item><description><c>FUN_0051bed0</c> — <c>play_script(scriptId)</c>
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/// public API: resolves the dat id, allocates a script node, inserts
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/// into the owner <c>PhysicsObj</c>'s linked list at <c>+0x30</c>.
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/// </description></item>
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/// <item><description><c>FUN_0051be40</c> — <c>ScriptManager::Start</c>:
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/// allocates the <c>{startTime, script*, next}</c> 16-byte node.
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/// </description></item>
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/// <item><description><c>FUN_0051bf20</c> — advances one hook,
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/// schedules the next fire time based on the next hook's
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/// <c>StartTime</c>.
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/// </description></item>
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/// <item><description><c>FUN_0051bfb0</c> — per-frame tick: while
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/// <c>head.NextHookAbsTime <= globalClock</c>, fire hooks via
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/// vtable dispatch on the owner <c>PhysicsObj</c>.
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/// </description></item>
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/// </list>
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/// </para>
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///
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/// <para>
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/// <b>Design choices vs retail:</b>
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/// <list type="bullet">
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/// <item><description>Flat list, not a linked list — iteration is
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/// simpler and N is small (< 100 active scripts in practice).
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/// </description></item>
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/// <item><description>Scripts are keyed by <c>(scriptId, entityId)</c>
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/// — same pair re-played replaces the old instance so we don't
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/// stack duplicates when the server retriggers.
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/// </description></item>
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/// <item><description>The anchor world position is cached at spawn
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/// time. For long-running scripts on moving entities, the caller
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/// can <see cref="Play"/> again with a fresh position each
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/// frame — idempotent.
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/// </description></item>
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/// </list>
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/// </para>
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/// Retail PhysicsScript scheduler: one serial FIFO per owning physics object.
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/// Duplicate plays append, different owners progress independently, and a
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/// catch-up tick drains every due hook in order.
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/// </summary>
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/// <remarks>
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/// Port of <c>ScriptManager::AddScriptInternal</c> (<c>0x0051B310</c>),
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/// <c>ScriptManager::NextHook</c> (<c>0x0051B3F0</c>), and
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/// <c>ScriptManager::UpdateScripts</c> (<c>0x0051B480</c>).
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/// Delayed nested calls follow <c>CPhysicsObj::CallPES</c>
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/// (<c>0x00511AF0</c>).
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/// </remarks>
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public sealed class PhysicsScriptRunner
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{
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public const float ImmediateCallPesThresholdSeconds = 0.0002f;
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private readonly Func<uint, DatPhysicsScript?> _resolver;
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private readonly IAnimationHookSink _sink;
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private readonly Func<double> _clock;
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private readonly Func<double> _randomUnit;
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private readonly Func<uint, bool> _canAdvanceOwner;
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private readonly Dictionary<uint, DatPhysicsScript?> _scriptCache = new();
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private readonly Dictionary<uint, OwnerQueue> _owners = new();
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private readonly Dictionary<uint, Vector3> _ownerAnchors = new();
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private readonly List<DelayedCallPes> _delayedCalls = new();
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private double _gameTime;
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private long _tickGeneration;
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private bool _frameTimePublished;
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private bool _processingTimedHooks;
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private DispatchContext? _dispatchContext;
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// One active node per (scriptId, entityId) pair. Replaying replaces.
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private readonly List<ActiveScript> _active = new();
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private double _now; // absolute runtime in seconds
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/// <summary>
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/// When <c>ACDREAM_DUMP_PLAYSCRIPT=1</c> is set in the environment,
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/// every <see cref="Play"/> call and every hook fire prints a line
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/// prefixed with <c>[pes]</c>. Use this to confirm the server is
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/// delivering PlayScript opcodes (lightning, spell casts, emotes)
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/// and which script IDs those are. Off by default.
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/// </summary>
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public bool DiagEnabled { get; set; } =
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System.Environment.GetEnvironmentVariable("ACDREAM_DUMP_PLAYSCRIPT") == "1";
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/// <summary>
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/// Preferred ctor — resolver delegate lets this class stay
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/// DAT-reader-free for testing. Production passes the centralized retail
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/// compatibility loader so CreateBlockingParticle cannot misalign hooks.
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/// </summary>
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public PhysicsScriptRunner(Func<uint, DatPhysicsScript?> resolver, IAnimationHookSink sink)
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public PhysicsScriptRunner(
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Func<uint, DatPhysicsScript?> resolver,
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IAnimationHookSink sink,
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Func<double>? clock = null,
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Func<double>? randomUnit = null,
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Func<uint, bool>? canAdvanceOwner = null)
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{
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_resolver = resolver ?? throw new ArgumentNullException(nameof(resolver));
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_sink = sink ?? throw new ArgumentNullException(nameof(sink));
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_sink = sink ?? throw new ArgumentNullException(nameof(sink));
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_clock = clock ?? (() => _gameTime);
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_randomUnit = randomUnit ?? Random.Shared.NextDouble;
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_canAdvanceOwner = canAdvanceOwner ?? (_ => true);
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}
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/// <summary>Number of scripts currently active (for telemetry).</summary>
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public int ActiveScriptCount => _active.Count;
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/// <summary>Queued PhysicsScripts across every owner, including tails.</summary>
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public int ActiveScriptCount => _owners.Values.Sum(owner => owner.Scripts.Count);
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/// <summary>
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/// Start (or restart) a PhysicsScript on the given entity.
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/// Retail-equivalent of <c>PhysicsObj::play_script</c>. Returns
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/// <c>true</c> if the script was found and queued, <c>false</c>
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/// if the dat lookup failed. Replaying the same
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/// <c>(scriptId, entityId)</c> pair replaces the prior instance
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/// instead of stacking.
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/// </summary>
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public bool Play(uint scriptId, uint entityId, Vector3 anchorWorldPos)
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public int ActiveOwnerCount => _owners.Count;
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public int ScheduledCallPesCount => _delayedCalls.Count;
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public bool DiagEnabled { get; set; } =
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Environment.GetEnvironmentVariable("ACDREAM_DUMP_PLAYSCRIPT") == "1";
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/// <summary>Always-on structural/load diagnostics; production supplies a logger.</summary>
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public Action<string>? DiagnosticSink { get; set; }
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/// <summary>Updates the root anchor used when this owner's hooks dispatch.</summary>
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public void SetOwnerAnchor(uint ownerLocalId, Vector3 worldPosition)
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{
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if (scriptId == 0) return false;
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if (ownerLocalId != 0)
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_ownerAnchors[ownerLocalId] = worldPosition;
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}
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var script = ResolveScript(scriptId);
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/// <summary>Enqueues a direct F754/Setup PhysicsScript DID.</summary>
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public bool PlayDirect(uint ownerLocalId, uint scriptDid)
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{
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if (ownerLocalId == 0 || scriptDid == 0)
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return false;
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DatPhysicsScript? script = ResolveScript(scriptDid);
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if (script is null || script.ScriptData.Count == 0)
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{
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ReportDiagnostic(
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$"PhysicsScript 0x{scriptDid:X8} for owner 0x{ownerLocalId:X8} is missing or empty.");
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if (DiagEnabled)
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Console.WriteLine($"[pes] Play: script 0x{scriptId:X8} not found / empty");
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Console.WriteLine($"[pes] missing/empty script=0x{scriptDid:X8} owner=0x{ownerLocalId:X8}");
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return false;
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}
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if (script.ScriptData.Any(entry => !double.IsFinite(entry.StartTime)))
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{
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ReportDiagnostic(
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$"PhysicsScript 0x{scriptDid:X8} for owner 0x{ownerLocalId:X8} has a non-finite hook time.");
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return false;
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}
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// Dedupe: if this (scriptId, entityId) already has an active
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// instance, replace it — retail's ScriptManager doesn't
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// double-schedule the same script on the same object in the
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// common path.
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for (int i = _active.Count - 1; i >= 0; i--)
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if (!_owners.TryGetValue(ownerLocalId, out OwnerQueue? owner))
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{
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if (_active[i].ScriptId == scriptId && _active[i].EntityId == entityId)
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_active.RemoveAt(i);
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owner = new OwnerQueue();
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_owners.Add(ownerLocalId, owner);
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}
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AddActiveScript(script, scriptId, entityId, anchorWorldPos, delaySeconds: 0);
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double start = owner.Scripts.Count == 0
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? _clock()
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: owner.Scripts[^1].StartTime + owner.Scripts[^1].Duration;
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if (!double.IsFinite(start))
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{
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ReportDiagnostic(
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$"PhysicsScript 0x{scriptDid:X8} for owner 0x{ownerLocalId:X8} produced a non-finite start time.");
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return false;
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}
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HashSet<uint>? immediateAncestors = null;
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if (_dispatchContext is { } dispatch
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&& dispatch.OwnerLocalId == ownerLocalId
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&& start <= dispatch.Script.StartTime)
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{
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immediateAncestors = dispatch.Script.ImmediateAncestors is null
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? new HashSet<uint> { dispatch.Script.ScriptDid }
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: new HashSet<uint>(dispatch.Script.ImmediateAncestors) { dispatch.Script.ScriptDid };
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if (immediateAncestors.Contains(scriptDid))
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{
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ReportDiagnostic(
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$"Rejected zero-time recursive PhysicsScript 0x{scriptDid:X8} for owner " +
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$"0x{ownerLocalId:X8}; DAT CallPES chain would never yield.");
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return false;
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}
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}
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owner.Scripts.Add(new ScheduledScript(
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scriptDid,
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script,
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start,
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immediateAncestors,
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EarliestScriptTickGeneration(ownerLocalId)));
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if (DiagEnabled)
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{
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Console.WriteLine(
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$"[pes] Play: scriptId=0x{scriptId:X8} entityId=0x{entityId:X8} " +
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$"anchor=({anchorWorldPos.X:F2},{anchorWorldPos.Y:F2},{anchorWorldPos.Z:F2}) " +
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$"hooks={script.ScriptData.Count}");
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}
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Console.WriteLine($"[pes] enqueue script=0x{scriptDid:X8} owner=0x{ownerLocalId:X8} start={start:R} depth={owner.Scripts.Count}");
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return true;
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}
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private void AddActiveScript(
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DatPhysicsScript script,
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uint scriptId,
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uint entityId,
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Vector3 anchorWorldPos,
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float delaySeconds)
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/// <summary>
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/// Compatibility seam for existing static/sky callers. The scheduler is
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/// still keyed by canonical owner ID; the position merely refreshes its
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/// hook anchor before enqueue.
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/// </summary>
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public bool Play(uint scriptId, uint entityId, Vector3 anchorWorldPos)
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{
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_active.Add(new ActiveScript
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{
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Script = script,
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ScriptId = scriptId,
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EntityId = entityId,
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AnchorWorld = anchorWorldPos,
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StartTimeAbs = _now + Math.Max(0f, delaySeconds),
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NextHookIndex = 0,
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});
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SetOwnerAnchor(entityId, anchorWorldPos);
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return PlayDirect(entityId, scriptId);
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}
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/// <summary>
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/// Advance every active script by <paramref name="dtSeconds"/>.
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/// Fires each hook whose <see cref="PhysicsScriptData.StartTime"/>
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/// (measured from the script's <see cref="Play"/> moment) has been
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/// reached. Removes scripts that have finished all their hooks.
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/// Implements retail CallPES. Near-zero pauses append immediately; a
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/// positive pause samples a deterministic injectable uniform delay in
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/// <c>[0, maximumPause]</c> and retains the call until due.
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/// </summary>
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public void Tick(float dtSeconds)
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public bool ScheduleCallPes(uint ownerLocalId, uint scriptDid, float maximumPause)
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{
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if (dtSeconds < 0) dtSeconds = 0;
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_now += dtSeconds;
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if (ownerLocalId == 0 || scriptDid == 0 || !float.IsFinite(maximumPause))
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return false;
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if (maximumPause < ImmediateCallPesThresholdSeconds)
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return PlayDirect(ownerLocalId, scriptDid);
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// Back-to-front so RemoveAt() is cheap and safe mid-iteration.
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for (int i = _active.Count - 1; i >= 0; i--)
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double sample = _randomUnit();
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if (!double.IsFinite(sample))
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return false;
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sample = Math.Clamp(sample, 0.0, 1.0);
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double due = _clock() + sample * maximumPause;
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_delayedCalls.Add(new DelayedCallPes(
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ownerLocalId,
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scriptDid,
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due,
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EarliestTickGenerationForNewTimedHook()));
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return true;
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}
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/// <summary>
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/// Publishes the current frame clock before animation hooks are delivered,
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/// without running retail's timed-hook/script update pass.
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/// </summary>
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public void PublishTime(double gameTime)
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{
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ValidateMonotonicTime(gameTime);
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_gameTime = gameTime;
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_frameTimePublished = true;
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}
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/// <summary>Advances to an absolute game-clock timestamp.</summary>
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public void Tick(double gameTime)
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{
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ValidateMonotonicTime(gameTime);
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_gameTime = gameTime;
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_frameTimePublished = false;
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_tickGeneration++;
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DrainDueCallPes(gameTime);
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// Snapshot owner IDs. Hooks may append to their current owner, create a
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// different owner, or delete an owner without invalidating iteration.
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uint[] ownerIds = _owners.Keys.ToArray();
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for (int ownerIndex = 0; ownerIndex < ownerIds.Length; ownerIndex++)
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{
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var a = _active[i];
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double elapsed = _now - a.StartTimeAbs;
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uint ownerId = ownerIds[ownerIndex];
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if (!_owners.TryGetValue(ownerId, out OwnerQueue? owner))
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continue;
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if (!_canAdvanceOwner(ownerId))
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continue;
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DrainOwner(ownerId, owner, gameTime);
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}
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}
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// Fire every hook whose scheduled time has arrived.
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while (a.NextHookIndex < a.Script.ScriptData.Count
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&& a.Script.ScriptData[a.NextHookIndex].StartTime <= elapsed)
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/// <summary>Compatibility delta-time overload used by existing callers.</summary>
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public void Tick(float deltaSeconds)
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{
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if (deltaSeconds < 0f)
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deltaSeconds = 0f;
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Tick(_gameTime + deltaSeconds);
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}
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public void StopAllForEntity(uint ownerLocalId)
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{
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_owners.Remove(ownerLocalId);
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_ownerAnchors.Remove(ownerLocalId);
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_delayedCalls.RemoveAll(call => call.OwnerLocalId == ownerLocalId);
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}
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public void Clear()
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{
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_owners.Clear();
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_ownerAnchors.Clear();
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_delayedCalls.Clear();
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}
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public void RegisterScriptForTest(uint id, DatPhysicsScript script)
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{
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ArgumentNullException.ThrowIfNull(script);
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_scriptCache[id] = script;
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}
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private void DrainDueCallPes(double gameTime)
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{
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// CPhysicsObj inserts timed object hooks at the head. Traversing in
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// reverse insertion order reproduces newest-first observation.
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_processingTimedHooks = true;
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try
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{
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for (int i = _delayedCalls.Count - 1; i >= 0; i--)
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{
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var entry = a.Script.ScriptData[a.NextHookIndex];
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DispatchHook(a, entry.Hook);
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a.NextHookIndex++;
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DelayedCallPes call = _delayedCalls[i];
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if (call.DueTime > gameTime
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|| call.EarliestTickGeneration > _tickGeneration
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|| !_canAdvanceOwner(call.OwnerLocalId))
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continue;
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_delayedCalls.RemoveAt(i);
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PlayDirect(call.OwnerLocalId, call.ScriptDid);
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}
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}
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finally
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{
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_processingTimedHooks = false;
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}
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}
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private void DrainOwner(uint ownerId, OwnerQueue owner, double gameTime)
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{
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while (owner.Scripts.Count > 0)
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{
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ScheduledScript current = owner.Scripts[0];
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if (current.EarliestTickGeneration > _tickGeneration)
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return;
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while (current.NextHookIndex < current.Script.ScriptData.Count)
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{
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PhysicsScriptData entry = current.Script.ScriptData[current.NextHookIndex];
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if (current.StartTime + entry.StartTime > gameTime)
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break;
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current.NextHookIndex++;
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DispatchHook(ownerId, current, entry.Hook);
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// A hook callback may delete the owner. Never continue through
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// the detached queue object after logical teardown.
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if (!_owners.TryGetValue(ownerId, out OwnerQueue? currentOwner)
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|| !ReferenceEquals(currentOwner, owner))
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return;
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}
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if (a.NextHookIndex >= a.Script.ScriptData.Count)
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_active.RemoveAt(i);
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else
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_active[i] = a;
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if (current.NextHookIndex < current.Script.ScriptData.Count)
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return;
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owner.Scripts.RemoveAt(0);
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}
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_owners.Remove(ownerId);
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}
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/// <summary>
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/// Stop an active script instance by
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/// <c>(scriptId, entityId)</c>. Used for cleanup when an entity
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/// despawns. Not necessary to call on normal script completion —
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/// scripts self-remove via <see cref="Tick"/>.
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/// </summary>
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public void Stop(uint scriptId, uint entityId)
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{
|
||||
for (int i = _active.Count - 1; i >= 0; i--)
|
||||
{
|
||||
if (_active[i].ScriptId == scriptId && _active[i].EntityId == entityId)
|
||||
_active.RemoveAt(i);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>Stop all scripts on an entity (e.g. on despawn).</summary>
|
||||
public void StopAllForEntity(uint entityId)
|
||||
{
|
||||
for (int i = _active.Count - 1; i >= 0; i--)
|
||||
{
|
||||
if (_active[i].EntityId == entityId)
|
||||
_active.RemoveAt(i);
|
||||
}
|
||||
}
|
||||
|
||||
private void DispatchHook(ActiveScript a, AnimationHook hook)
|
||||
private void DispatchHook(uint ownerId, ScheduledScript script, AnimationHook hook)
|
||||
{
|
||||
if (DiagEnabled)
|
||||
Console.WriteLine($"[pes] fire script=0x{script.ScriptDid:X8} owner=0x{ownerId:X8} hook={hook.HookType}");
|
||||
|
||||
_ownerAnchors.TryGetValue(ownerId, out Vector3 anchor);
|
||||
DispatchContext? previous = _dispatchContext;
|
||||
_dispatchContext = new DispatchContext(ownerId, script);
|
||||
try
|
||||
{
|
||||
Console.WriteLine(
|
||||
$"[pes] fire: scriptId=0x{a.ScriptId:X8} entityId=0x{a.EntityId:X8} " +
|
||||
$"hook={hook.HookType}");
|
||||
_sink.OnHook(ownerId, anchor, hook);
|
||||
}
|
||||
|
||||
// Handle the nested-script hook inline — it needs our runner.
|
||||
// Everything else delegates to the sink (ParticleHookSink
|
||||
// handles CreateParticle, DestroyParticle, StopParticle,
|
||||
// CreateBlockingParticle, etc).
|
||||
if (hook is CallPESHook call)
|
||||
finally
|
||||
{
|
||||
// CallPESHook.PES = sub-script id; Pause = delay before the
|
||||
// sub-script starts. Retail links it into the active script
|
||||
// list with StartTime = now + Pause; our flat list preserves
|
||||
// that timing without replacing the currently running script.
|
||||
var subScript = ResolveScript(call.PES);
|
||||
if (subScript is null || subScript.ScriptData.Count == 0)
|
||||
{
|
||||
if (DiagEnabled)
|
||||
Console.WriteLine($"[pes] CallPES: script 0x{call.PES:X8} not found / empty");
|
||||
return;
|
||||
}
|
||||
|
||||
AddActiveScript(subScript, call.PES, a.EntityId, a.AnchorWorld, call.Pause);
|
||||
return;
|
||||
_dispatchContext = previous;
|
||||
}
|
||||
|
||||
_sink.OnHook(a.EntityId, a.AnchorWorld, hook);
|
||||
}
|
||||
|
||||
private DatPhysicsScript? ResolveScript(uint id)
|
||||
{
|
||||
if (_scriptCache.TryGetValue(id, out var cached)) return cached;
|
||||
var script = _resolver(id);
|
||||
if (_scriptCache.TryGetValue(id, out DatPhysicsScript? cached))
|
||||
return cached;
|
||||
DatPhysicsScript? script;
|
||||
try
|
||||
{
|
||||
script = _resolver(id);
|
||||
}
|
||||
catch (Exception error)
|
||||
{
|
||||
ReportDiagnostic($"Failed to load PhysicsScript 0x{id:X8}: {error.Message}");
|
||||
if (DiagEnabled)
|
||||
Console.WriteLine($"[pes] load failed script=0x{id:X8}: {error.Message}");
|
||||
script = null;
|
||||
}
|
||||
_scriptCache[id] = script;
|
||||
return script;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Test-only seam: pre-seed the resolver cache with a hand-built
|
||||
/// script so unit tests can exercise the scheduler without loading
|
||||
/// dats. Production code never calls this (name carries the warning).
|
||||
/// </summary>
|
||||
public void RegisterScriptForTest(uint id, DatPhysicsScript script)
|
||||
=> _scriptCache[id] = script;
|
||||
|
||||
private struct ActiveScript
|
||||
private long EarliestTickGenerationForNewTimedHook()
|
||||
{
|
||||
public DatPhysicsScript Script;
|
||||
public uint ScriptId;
|
||||
public uint EntityId;
|
||||
public Vector3 AnchorWorld;
|
||||
public double StartTimeAbs;
|
||||
public int NextHookIndex;
|
||||
// A positive-pause CallPES adds a timed object hook. Retail does not
|
||||
// revisit the active process_hooks traversal for a hook inserted by
|
||||
// the animation phase, even when its sampled delay is zero. Near-zero
|
||||
// CallPES bypasses this list and may reach the upcoming script pass.
|
||||
return _frameTimePublished
|
||||
? _tickGeneration + 2
|
||||
: _tickGeneration + 1;
|
||||
}
|
||||
|
||||
private long EarliestScriptTickGeneration(uint ownerLocalId)
|
||||
{
|
||||
if (_processingTimedHooks
|
||||
|| _dispatchContext is { OwnerLocalId: var dispatchOwner }
|
||||
&& dispatchOwner == ownerLocalId)
|
||||
return _tickGeneration;
|
||||
return _tickGeneration + 1;
|
||||
}
|
||||
|
||||
private void ValidateMonotonicTime(double gameTime)
|
||||
{
|
||||
if (!double.IsFinite(gameTime))
|
||||
throw new ArgumentOutOfRangeException(nameof(gameTime));
|
||||
if (gameTime < _gameTime)
|
||||
throw new ArgumentOutOfRangeException(nameof(gameTime), "PhysicsScript time must be monotonic.");
|
||||
}
|
||||
|
||||
private void ReportDiagnostic(string message) => DiagnosticSink?.Invoke(message);
|
||||
|
||||
private sealed class OwnerQueue
|
||||
{
|
||||
public List<ScheduledScript> Scripts { get; } = new();
|
||||
}
|
||||
|
||||
private sealed class ScheduledScript
|
||||
{
|
||||
public ScheduledScript(
|
||||
uint scriptDid,
|
||||
DatPhysicsScript script,
|
||||
double startTime,
|
||||
HashSet<uint>? immediateAncestors,
|
||||
long earliestTickGeneration)
|
||||
{
|
||||
ScriptDid = scriptDid;
|
||||
Script = script;
|
||||
StartTime = startTime;
|
||||
Duration = script.ScriptData[^1].StartTime;
|
||||
ImmediateAncestors = immediateAncestors;
|
||||
EarliestTickGeneration = earliestTickGeneration;
|
||||
}
|
||||
|
||||
public uint ScriptDid { get; }
|
||||
public DatPhysicsScript Script { get; }
|
||||
public double StartTime { get; }
|
||||
public double Duration { get; }
|
||||
public HashSet<uint>? ImmediateAncestors { get; }
|
||||
public long EarliestTickGeneration { get; }
|
||||
public int NextHookIndex { get; set; }
|
||||
}
|
||||
|
||||
private readonly record struct DelayedCallPes(
|
||||
uint OwnerLocalId,
|
||||
uint ScriptDid,
|
||||
double DueTime,
|
||||
long EarliestTickGeneration);
|
||||
|
||||
private sealed record DispatchContext(uint OwnerLocalId, ScheduledScript Script);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue