Thrusters (shuttle go nyoom) (#5352)

Content.Shared/Shuttles/Components/PilotComponent.cs

@@ -0,0 +1,66 @@
+using System;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
+using Robust.Shared.Log;
+using Robust.Shared.Map;
+using Robust.Shared.Players;
+using Robust.Shared.Serialization;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Shared.Shuttles.Components
+{
+    /// <summary>
+    /// Stores what shuttle this entity is currently piloting.
+    /// </summary>
+    [RegisterComponent]
+    [NetworkedComponent]
+    public sealed class PilotComponent : Component
+    {
+        public override string Name => "Pilot";
+        [ViewVariables] public SharedShuttleConsoleComponent? Console { get; set; }
+
+        /// <summary>
+        /// Where we started piloting from to check if we should break from moving too far.
+        /// </summary>
+        [ViewVariables] public EntityCoordinates? Position { get; set; }
+
+        public const float BreakDistance = 0.25f;
+
+        public override void HandleComponentState(ComponentState? curState, ComponentState? nextState)
+        {
+            base.HandleComponentState(curState, nextState);
+            if (curState is not PilotComponentState state) return;
+
+            if (state.Console == null)
+            {
+                Console = null;
+                return;
+            }
+
+            if (!Owner.EntityManager.TryGetEntity(state.Console.Value, out var consoleEnt) ||
+                !consoleEnt.TryGetComponent(out SharedShuttleConsoleComponent? shuttleConsoleComponent))
+            {
+                Logger.Warning($"Unable to set Helmsman console to {state.Console.Value}");
+                return;
+            }
+
+            Console = shuttleConsoleComponent;
+        }
+
+        public override ComponentState GetComponentState(ICommonSession player)
+        {
+            return new PilotComponentState(Console?.OwnerUid);
+        }
+
+        [Serializable, NetSerializable]
+        private sealed class PilotComponentState : ComponentState
+        {
+            public EntityUid? Console { get; }
+
+            public PilotComponentState(EntityUid? uid)
+            {
+                Console = uid;
+            }
+        }
+    }
+}