Actions System + UI (#2710)

Co-authored-by: Vera Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Server/Alert/Click/StopPulling.cs

@@ -0,0 +1,27 @@
+using Content.Shared.Alert;
+ using Content.Shared.GameObjects.Components.Pulling;
+ using Content.Shared.GameObjects.EntitySystems;
+ using JetBrains.Annotations;
+ using Robust.Shared.GameObjects.Systems;
+ using Robust.Shared.Serialization;
+
+namespace Content.Server.Alert.Click
+{
+    /// <summary>
+    /// Stop pulling something
+    /// </summary>
+    [UsedImplicitly]
+    public class StopPulling : IAlertClick
+    {
+        public void ExposeData(ObjectSerializer serializer) { }
+
+        public void AlertClicked(ClickAlertEventArgs args)
+        {
+            EntitySystem
+                .Get<SharedPullingSystem>()
+                .GetPulled(args.Player)?
+                .GetComponentOrNull<SharedPullableComponent>()?
+                .TryStopPull();
+        }
+    }
+}