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merge: animation overhaul branch (Opus agent, 10 commits, +32 tests)

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Resolves remote-chars-lagging-forward, no-anim-speed-scaling, and
monster/NPC Commands-list (waves/attacks/deaths) not animating.
Adds dead-reckoning + sequence-wide velocity/omega + Commands[]
list parsing + MotionCommandResolver + soft-snap residual.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-04-19 10:50:47 +02:00
commit 862cd5662f
8 changed files with 1273 additions and 46 deletions
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68
tests/AcDream.Core.Net.Tests/Messages/UpdateMotionTests.cs
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@ -110,6 +110,74 @@ public class UpdateMotionTests
Assert.Null(result.Value.MotionState.ForwardCommand);
}
[Fact]
public void ParsesForwardSpeed_WhenSpeedFlagSet()
{
// Flags = CurrentStyle | ForwardCommand | ForwardSpeed (0x1|0x2|0x10 = 0x13)
// Test value: 1.5× speed — matches a typical RunRate broadcast.
var body = new byte[4 + 4 + 2 + 6 + 4 + 4 + 2 + 2 + 4];
int p = 0;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0xF74Cu); p += 4;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0x1A2B3C4Du); p += 4;
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0); p += 2;
p += 6; // MovementData header
body[p++] = 0;
body[p++] = 0;
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0); p += 2;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0x13u); p += 4;
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x003D); p += 2; // NonCombat
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x0007); p += 2; // RunForward
BinaryPrimitives.WriteSingleLittleEndian(body.AsSpan(p), 1.5f); p += 4; // speed
var result = UpdateMotion.TryParse(body);
Assert.NotNull(result);
Assert.Equal((ushort)0x003D, result!.Value.MotionState.Stance);
Assert.Equal((ushort)0x0007, result.Value.MotionState.ForwardCommand);
Assert.Equal(1.5f, result.Value.MotionState.ForwardSpeed);
}
[Fact]
public void ParsesCommandsList_Wave()
{
// A typical NPC wave broadcast:
// - stance NonCombat (0x003D)
// - ForwardCommand flag set, command = 0x0003 (Ready)
// - numCommands = 1, with a single MotionItem{ cmd=0x0087 Wave, seq=0, speed=1.0 }
//
// Packed u32 = (flags | numCommands << 7)
// flags = 0x01 (CurrentStyle) | 0x02 (ForwardCommand) = 0x03
// numCommands << 7 = 1 << 7 = 0x80
// total = 0x83
var body = new byte[4 + 4 + 2 + 6 + 4 + 4 + 2 + 2 + 8];
int p = 0;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0xF74Cu); p += 4;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0xDEADBEEFu); p += 4;
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0); p += 2;
p += 6;
body[p++] = 0;
body[p++] = 0;
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0); p += 2;
BinaryPrimitives.WriteUInt32LittleEndian(body.AsSpan(p), 0x83u); p += 4; // flags=0x3 + numCommands=1
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x003D); p += 2; // stance
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x0003); p += 2; // fwd cmd = Ready
// MotionItem: u16 command + u16 packedSeq + f32 speed
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x0087); p += 2; // Wave
BinaryPrimitives.WriteUInt16LittleEndian(body.AsSpan(p), 0x0001); p += 2;
BinaryPrimitives.WriteSingleLittleEndian(body.AsSpan(p), 1.0f); p += 4;
var result = UpdateMotion.TryParse(body);
Assert.NotNull(result);
Assert.Equal((ushort)0x003D, result!.Value.MotionState.Stance);
Assert.Equal((ushort)0x0003, result.Value.MotionState.ForwardCommand);
Assert.NotNull(result.Value.MotionState.Commands);
Assert.Single(result.Value.MotionState.Commands!);
var wave = result.Value.MotionState.Commands![0];
Assert.Equal((ushort)0x0087, wave.Command);
Assert.Equal(1.0f, wave.Speed);
}
[Fact]
public void HandlesNonInvalidMovementType_GracefullyReturnsOuterStance()
{