WiP movement prediction.

Content.Client/GameObjects/EntitySystems/MoverSystem.cs

@@ -0,0 +1,53 @@
+using Content.Shared.GameObjects.Components.Movement;
+using Content.Shared.GameObjects.EntitySystems;
+using Content.Shared.Physics;
+using JetBrains.Annotations;
+using Robust.Client.GameObjects;
+using Robust.Client.Physics;
+using Robust.Client.Player;
+using Robust.Shared.GameObjects.Components;
+using Robust.Shared.IoC;
+using Robust.Shared.Physics;
+
+#nullable enable
+
+namespace Content.Client.GameObjects.EntitySystems
+{
+    [UsedImplicitly]
+    public class MoverSystem : SharedMoverSystem
+    {
+        [Dependency] private readonly IPlayerManager _playerManager = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            UpdatesBefore.Add(typeof(PhysicsSystem));
+        }
+
+        public override void FrameUpdate(float frameTime)
+        {
+            var playerEnt = _playerManager.LocalPlayer?.ControlledEntity;
+
+            if (playerEnt == null || !playerEnt.TryGetComponent(out IMoverComponent mover))
+            {
+                return;
+            }
+
+            var physics = playerEnt.GetComponent<PhysicsComponent>();
+            playerEnt.TryGetComponent(out CollidableComponent? collidable);
+
+            UpdateKinematics(playerEnt.Transform, mover, physics, collidable);
+        }
+
+        public override void Update(float frameTime)
+        {
+            FrameUpdate(frameTime);
+        }
+
+        protected override void SetController(SharedPhysicsComponent physics)
+        {
+            ((PhysicsComponent)physics).SetController<MoverController>();
+        }
+    }
+}