Add FTL arrival visuals (#29402)

* Add FTL arrival visuals

* weh

* Update Content.Shared/Shuttles/Components/FTLComponent.cs

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

---------

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

Content.Shared/Shuttles/Components/FTLComponent.cs

@@ -0,0 +1,64 @@
+using Content.Shared.Shuttles.Systems;
+using Content.Shared.Tag;
+using Content.Shared.Timing;
+using Robust.Shared.Audio;
+using Robust.Shared.GameStates;
+using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.Shuttles.Components;
+
+/// <summary>
+/// Added to a component when it is queued or is travelling via FTL.
+/// </summary>
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class FTLComponent : Component
+{
+    // TODO Full game save / add datafields
+
+    [ViewVariables]
+    public FTLState State = FTLState.Available;
+
+    [ViewVariables(VVAccess.ReadWrite)]
+    public StartEndTime StateTime;
+
+    [ViewVariables(VVAccess.ReadWrite)]
+    public float StartupTime = 0f;
+
+    // Because of sphagetti, actual travel time is Math.Max(TravelTime, DefaultArrivalTime)
+    [ViewVariables(VVAccess.ReadWrite)]
+    public float TravelTime = 0f;
+
+    [DataField]
+    public EntProtoId? VisualizerProto = "FtlVisualizerEntity";
+
+    [DataField, AutoNetworkedField]
+    public EntityUid? VisualizerEntity;
+
+    /// <summary>
+    /// Coordinates to arrive it: May be relative to another grid (for docking) or map coordinates.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public EntityCoordinates TargetCoordinates;
+
+    [DataField, AutoNetworkedField]
+    public Angle TargetAngle;
+
+    /// <summary>
+    /// If we're docking after FTL what is the prioritised dock tag (if applicable).
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite), DataField]
+    public ProtoId<TagPrototype>? PriorityTag;
+
+    [ViewVariables(VVAccess.ReadWrite), DataField("soundTravel")]
+    public SoundSpecifier? TravelSound = new SoundPathSpecifier("/Audio/Effects/Shuttle/hyperspace_progress.ogg")
+    {
+        Params = AudioParams.Default.WithVolume(-3f).WithLoop(true)
+    };
+
+    [DataField]
+    public EntityUid? StartupStream;
+
+    [DataField]
+    public EntityUid? TravelStream;
+}