acdream/src/AcDream.App/Physics/RemoteShadowPlacementSynchronizer.cs

using AcDream.App.World;
using AcDream.Core.Physics;
using AcDream.Core.World;

namespace AcDream.App.Physics;

/// <summary>Synchronizes a resolved remote placement in the current live origin.</summary>
internal sealed class RemoteShadowPlacementSynchronizer
{
    private readonly RemotePhysicsUpdater _remotePhysics;
    private readonly LiveWorldOriginState _origin;

    public RemoteShadowPlacementSynchronizer(
        RemotePhysicsUpdater remotePhysics,
        LiveWorldOriginState origin)
    {
        _remotePhysics = remotePhysics
            ?? throw new ArgumentNullException(nameof(remotePhysics));
        _origin = origin ?? throw new ArgumentNullException(nameof(origin));
    }

    public void Sync(WorldEntity entity, PhysicsBody body, uint cellId) =>
        _remotePhysics.SyncRemoteShadowToBody(
            entity.Id,
            body,
            _origin.CenterX,
            _origin.CenterY,
            cellId);
}

/// <summary>Bridges remote placement ownership to live presentation state.</summary>
internal sealed class RemoteTeleportPlacementPresentation
{
    private readonly LiveEntityPresentationController _presentation;

    public RemoteTeleportPlacementPresentation(
        LiveEntityPresentationController presentation) =>
        _presentation = presentation
            ?? throw new ArgumentNullException(nameof(presentation));

    public void Complete(uint serverGuid, ushort generation, bool deferShadowRestore) =>
        _presentation.CompleteAuthoritativePlacement(
            serverGuid,
            generation,
            deferShadowRestore);

    public void Begin(uint serverGuid, ushort generation) =>
        _presentation.BeginAuthoritativePlacement(serverGuid, generation);
}