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Implement ROOM fades and character voices

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This commit is contained in:
gamer147
2026-07-21 00:47:29 -04:00
parent 2fa42b085a
commit cffc75c64d
18 changed files with 442 additions and 71 deletions
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4
engine/Age.Cli/Program.cs
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@@ -353,9 +353,9 @@ sealed class AudioTraceHost : IHost
var entry = _res.ResolveBgm(id);
Events.Add(("play-bgm", id, entry != null ? $"{entry.Archive} {entry.Name}" : $"BGM{id:D3}.OGG <missing>"));
}
public void PlayVoice(long id) // voice: per-scene manifest
public void PlayVoice(long id) // voice: SC section, then frontend raw id
{
var e = _res.Resolve(_scene, id);
var e = _res.ResolveVoice(_scene, id);
Events.Add(("play-voice", id, e == null ? "<unresolved>" : $"{e.Archive} {e.Name}"));
}
public void ShowText(int offset, string text) { }

69
engine/Age.Engine.Tests/CoreScalarAndScreenTransitionOpsTests.cs Normal file
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@@ -0,0 +1,69 @@
using System;
using System.Collections.Generic;
using System.Linq;
using Age.Engine.Model;
using Age.Engine.Sys4;
using Age.Engine.Vm;
using Xunit;
public class CoreScalarAndScreenTransitionOpsTests
{
private const int Imm = 0, GlobalInt = 3, LocalInt = 9;
[Fact]
public void ZeroIntRange_ClearsEveryConsecutiveDestinationCell()
{
var table = OpcodeTableJson.Load(Paths.OpcodesJson);
(int, Operand[]) Mov(int address, long value)
=> (0x55, new[] { new Operand(GlobalInt, address), new Operand(Imm, value) });
var ops = new List<(int, Operand[])>
{
Mov(0x2e49, 7), Mov(0x2e4a, 8), Mov(0x2e4b, 9),
(0x6c, new[] { new Operand(GlobalInt, 0x2e49), new Operand(Imm, 3) }),
(0x2, Array.Empty<Operand>()),
};
var vm = new VirtualMachine(ScriptAssembler.Assemble(table, "ZERO_RANGE", ops, Array.Empty<string>()), table,
new RecordingHost());
vm.Run();
Assert.All(Enumerable.Range(0x2e49, 3), address => Assert.Equal(0, vm.Globals[address]));
}
[Fact]
public void RandomModulo_WritesAValueInsideTheNativeRange()
{
var table = OpcodeTableJson.Load(Paths.OpcodesJson);
var ops = new List<(int, Operand[])>
{
(0x60, new[] { new Operand(LocalInt, 0), new Operand(Imm, 4) }),
(0x55, new[] { new Operand(GlobalInt, 0x100), new Operand(LocalInt, 0) }),
(0x2, Array.Empty<Operand>()),
};
var vm = new VirtualMachine(ScriptAssembler.Assemble(table, "RANDOM_MODULO", ops, Array.Empty<string>()), table,
new RecordingHost());
vm.Run();
Assert.InRange(vm.Globals[0x100], 0, 3);
}
[Fact]
public void CrossfadeSurfaces_ForwardsBothCapturedSlotsAndTimingArgument()
{
var table = OpcodeTableJson.Load(Paths.OpcodesJson);
var script = ScriptAssembler.Assemble(table, "SURFACE_CROSSFADE", new List<(int, Operand[])>
{
(0x25, new[] { new Operand(Imm, 1), new Operand(Imm, 2), new Operand(Imm, 10) }),
(0x2, Array.Empty<Operand>()),
}, Array.Empty<string>());
var host = new RecordingHost();
new VirtualMachine(script, table, host).Run();
Assert.Equal((1, 2, 10L), Assert.Single(host.SurfaceCrossfades));
Assert.Equal(160, LegacyScreenTransitionTiming.DurationMilliseconds(10));
Assert.Equal(480, LegacyScreenTransitionTiming.DurationMilliseconds(30));
Assert.Equal(1024, LegacyScreenTransitionTiming.DurationMilliseconds(65));
}
}

9
engine/Age.Engine.Tests/Sys4AssetStoreTests.cs
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@@ -168,7 +168,7 @@ public class Sys4AssetStoreTests
}
[Fact]
public void Sc0000AndTitleAudioPayloadsReadDirectlyFromTheirNativeAddressSpaces()
public void Sc0000RoomAndTitleAudioPayloadsReadDirectlyFromTheirNativeAddressSpaces()
{
var catalog = Sys4AssetCatalog.Load(Paths.Sys4Ini);
var archiveOnly = new Sys4AssetStore(catalog, Paths.GameDir);
@@ -178,10 +178,15 @@ public class Sys4AssetStoreTests
Assert.Equal("BGM005.OGG", bgm?.Name);
AssertOgg(resources.ReadAudio(bgm!));
var voice = resources.Resolve("SC0000", 0x24);
var voice = resources.ResolveVoice("SC0000", 0x24);
Assert.Equal("MAN999.OGG", voice?.Name);
AssertOgg(resources.ReadAudio(voice!));
var roomVoice = resources.ResolveVoice("ROOM", 0x3365);
Assert.Equal("EUA0016.OGG", roomVoice?.Name);
AssertOgg(resources.ReadAudio(roomVoice!));
Assert.Null(resources.ResolveVoice("ROOM", 0x337e)); // SO001.AGF is not voice audio.
var sfx = resources.ResolveSoundEffect(0x28);
Assert.Equal("E0808.WAV", sfx?.Name);
var wav = resources.ReadAudio(sfx!);

3
engine/Age.Engine.Tests/TestSupport.cs
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@@ -39,6 +39,7 @@ internal class RecordingHost : IHost
public readonly List<(long Resource, int Surface, long Flags)> ModalMovies = new();
public readonly List<int> ClearedRenderTargets = new();
public readonly List<(int First, int Count)> ReleasedSurfaceRanges = new();
public readonly List<(int Source, int Target, long Interval)> SurfaceCrossfades = new();
public readonly List<bool> MessageSkipChanges = new();
public readonly List<long> CursorResources = new();
public readonly List<bool> AdvPagePresentationSuspended = new();
@@ -109,6 +110,8 @@ internal class RecordingHost : IHost
gfx.StartForegroundTransitions(100);
gfx.CompleteForegroundTransitions(100);
}
public void CrossfadeSurfaces(GfxState gfx, int sourceSurface, int targetSurface, long intervalArgument)
=> SurfaceCrossfades.Add((sourceSurface, targetSurface, intervalArgument));
public void CreateTexture(int slot, int w, int h) { }
public void SetTexture(long resId, int slot) { }
public void ClearRenderTarget(int surfaceSlot) => ClearedRenderTargets.Add(surfaceSlot);

3
engine/Age.Engine/Hosting/IHost.cs
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@@ -77,6 +77,9 @@ public interface IHost
// read/message-skip branch reaches op 0x20c and presents the completed endpoint immediately.
void WaitForForegroundTransition(GfxState gfx) { }
void PresentFrame(GfxState gfx) { }
// Legacy SYS4 screen-transition family (op 0x25): scripts render two complete frames into
// numbered surfaces, then block while the engine alpha-composites target over source.
void CrossfadeSurfaces(GfxState gfx, int sourceSurface, int targetSurface, long intervalArgument) { }
void CreateTexture(int slot, int width, int height);
void SetTexture(long resourceId, int slot);
void ReleaseSurface(int slot) { }

13
engine/Age.Engine/Model/LegacyScreenTransitionTiming.cs Normal file
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@@ -0,0 +1,13 @@
namespace Age.Engine.Model;
/// <summary>Native timing conversion shared by the legacy op-0x25 screen-transition family.</summary>
public static class LegacyScreenTransitionTiming
{
public static long DurationMilliseconds(long argument)
{
long interval = argument <= 64 ? argument : argument / 16;
long step = argument <= 64 ? 16 : 1;
interval = System.Math.Max(1, interval);
return System.Math.Clamp(((256 + step - 1) / step) * interval, 1, 60_000);
}
}

8
engine/Age.Engine/Sys4/ResourceMap.cs
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@@ -33,6 +33,14 @@ public sealed class ResourceMap
entry.Name.EndsWith(".AGF", StringComparison.OrdinalIgnoreCase) ? entry : null;
}
/// <summary>Resolve voice audio through the active SC section when one exists, then through the
/// universal raw catalog used by non-SC frontend scripts such as ROOM.</summary>
public AssetEntry? ResolveVoice(string scene, long resId)
{
var entry = _catalog.ResolveScene(scene, resId) ?? _catalog.ResolveRaw(resId);
return entry is { IsPlaceholder: false } && IsAudio(entry) ? entry : null;
}
/// <summary>Resolve an already-normalized raw catalog id without applying a scene section base.</summary>
public AssetEntry? ResolveRawTexture(long rawId)
{

25
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -649,7 +649,26 @@ public sealed class VirtualMachine
Write(a[0], Read(a[0]) & ~(1L << (int)bit)); return pc + 1;
}
case "check-bit": Write(a[0], (Read(a[1]) >> (int)(Read(a[2]) & 31)) & 1); return pc + 1;
case "copy-to-global": Write(a[0], Read(a[1])); return pc + 1;
case "zero-int-range":
case "copy-to-global": // pre-reference compatibility for opcode 0x6c
{
int count = System.Math.Max(0, checked((int)Read(a[1])));
for (int i = 0; i < count; i++) WriteConsecutive(a[0], i, 0);
return pc + 1;
}
case "random-modulo": // 0x60: native CRT rand() % bound
case "u0041A270":
{
long bound = Read(a[1]);
if (bound == 0)
{
Write(a[0], 0);
HaltReason ??= "random-modulo-zero";
return HALT;
}
Write(a[0], System.Random.Shared.Next(0x8000) % bound);
return pc + 1;
}
case "jmp": return _cur.Script.IndexByOffset.GetValueOrDefault((int)a[0].Value, pc + 1);
case "call": _cur.CallStack.Add(pc + 1); return _cur.Script.IndexByOffset.GetValueOrDefault((int)a[0].Value, pc + 1);
case "ret":
@@ -1301,6 +1320,10 @@ public sealed class VirtualMachine
Read(a[4]), (int)Read(a[5]), Read(a[6]), Read(a[7])); return pc + 1;
case "present-frame": // 0x20c: read/message-skip path snaps a queued transition to its endpoint
_host.PresentFrame(Gfx); return pc + 1;
case "crossfade-surfaces": // 0x25: legacy full-frame surface alpha transition
case "u00418B40":
_host.CrossfadeSurfaces(Gfx, (int)Read(a[0]), (int)Read(a[1]), Read(a[2]));
return pc + 1;
case "mark-frame-yield": // 0x21c: normal foreground-transition scheduler/resume boundary
_host.WaitForForegroundTransition(Gfx); return pc + 1;
case "clear-gfx-command-queue": // 0x224: retained compositor does not use this native queue