Cardboard Box and Stealth Components (#11569)

Content.Server/CardboardBox/CardboardBoxSystem.cs

@@ -0,0 +1,61 @@
+using System.Linq;
+using Content.Shared.CardboardBox.Components;
+using Content.Server.Storage.Components;
+using Content.Shared.CardboardBox;
+using Content.Shared.Movement.Components;
+using Content.Shared.Movement.Systems;
+using Robust.Shared.Player;
+using Robust.Shared.Timing;
+
+namespace Content.Server.CardboardBox;
+
+public sealed class CardboardBoxSystem : SharedCardboardBoxSystem
+{
+    [Dependency] private readonly SharedAudioSystem _audio = default!;
+    [Dependency] private readonly SharedMoverController _mover = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<CardboardBoxComponent, StorageBeforeCloseEvent>(OnBeforeStorageClosed);
+        SubscribeLocalEvent<CardboardBoxComponent, StorageAfterOpenEvent>(AfterStorageOpen);
+    }
+
+    private void OnBeforeStorageClosed(EntityUid uid, CardboardBoxComponent component, StorageBeforeCloseEvent args)
+    {
+        var mobMover = args.Contents.Where(HasComp<MobMoverComponent>).ToList();
+
+        //Grab the first mob to set as the mover and to prevent other mobs from entering.
+        foreach (var mover in mobMover)
+        {
+            //Set the movement relay for the box as the first mob
+            if (component.Mover == null && args.Contents.Contains(mover))
+            {
+                var relay = EnsureComp<RelayInputMoverComponent>(mover);
+                _mover.SetRelay(mover, uid, relay);
+                component.Mover = mover;
+            }
+
+            if (mover != component.Mover)
+                args.Contents.Remove(mover);
+        }
+    }
+
+    private void AfterStorageOpen(EntityUid uid, CardboardBoxComponent component, StorageAfterOpenEvent args)
+    {
+        //Remove the mover after the box is opened and play the effect if it hasn't been played yet.
+        if (component.Mover != null)
+        {
+            RemComp<RelayInputMoverComponent>(component.Mover.Value);
+            if (_timing.CurTime > component.EffectCooldown)
+            {
+                RaiseNetworkEvent(new PlayBoxEffectMessage(component.Owner, component.Mover.Value), Filter.PvsExcept(component.Owner));
+                _audio.PlayPvs(component.EffectSound, component.Owner);
+                component.EffectCooldown = _timing.CurTime + CardboardBoxComponent.MaxEffectCooldown;
+            }
+        }
+
+        component.Mover = null;
+    }
+}