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feat(net): plumb IsGrounded through EntityPositionUpdate (L.3.2 Task 2)

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PositionFlags.IsGrounded (0x04) was already parsed by UpdatePosition
but not exposed through the Parsed record or EntityPositionUpdate.
Adds the bool field to both records so OnLivePositionUpdated can
consume it for retail-faithful MoveOrTeleport routing
(acclient @ 0x00516330: has_contact=false → no-op during airborne arc).

Consumed in subsequent task (L.3.1+L.3.2 Task 3).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-05-03 10:15:02 +02:00
parent 08fbbef3c4
commit 5d717312cc
2 changed files with 6 additions and 2 deletions
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2
src/AcDream.Core.Net/Messages/UpdatePosition.cs
View file

@ -64,6 +64,7 @@ public static class UpdatePosition
CreateObject.ServerPosition Position, CreateObject.ServerPosition Position,
System.Numerics.Vector3? Velocity, System.Numerics.Vector3? Velocity,
uint? PlacementId, uint? PlacementId,
bool IsGrounded,
ushort InstanceSequence = 0, ushort InstanceSequence = 0,
ushort TeleportSequence = 0, ushort TeleportSequence = 0,
ushort ForcePositionSequence = 0); ushort ForcePositionSequence = 0);
@ -164,6 +165,7 @@ public static class UpdatePosition
RotationW: rw, RotationX: rx, RotationY: ry, RotationZ: rz); RotationW: rw, RotationX: rx, RotationY: ry, RotationZ: rz);
return new Parsed(guid, serverPos, velocity, placementId, return new Parsed(guid, serverPos, velocity, placementId,
IsGrounded: (flags & PositionFlags.IsGrounded) != 0,
instSeq, teleSeq, forceSeq); instSeq, teleSeq, forceSeq);
} }
catch catch

6
src/AcDream.Core.Net/WorldSession.cs
View file

@ -110,7 +110,8 @@ public sealed class WorldSession : IDisposable
public readonly record struct EntityPositionUpdate( public readonly record struct EntityPositionUpdate(
uint Guid, uint Guid,
CreateObject.ServerPosition Position, CreateObject.ServerPosition Position,
System.Numerics.Vector3? Velocity); System.Numerics.Vector3? Velocity,
bool IsGrounded);
/// <summary> /// <summary>
/// Fires when the session parses a 0xF748 UpdatePosition game message. /// Fires when the session parses a 0xF748 UpdatePosition game message.
@ -711,7 +712,8 @@ public sealed class WorldSession : IDisposable
PositionUpdated?.Invoke(new EntityPositionUpdate( PositionUpdated?.Invoke(new EntityPositionUpdate(
posUpdate.Value.Guid, posUpdate.Value.Guid,
posUpdate.Value.Position, posUpdate.Value.Position,
posUpdate.Value.Velocity)); posUpdate.Value.Velocity,
posUpdate.Value.IsGrounded));
} }
} }
else if (op == VectorUpdate.Opcode) else if (op == VectorUpdate.Opcode)