official security anti-inflatable armament (#18634)

Content.Server/Weapons/Melee/Balloon/BalloonPopperSystem.cs

@@ -0,0 +1,54 @@
+using Content.Server.Hands.Systems;
+using Content.Server.Popups;
+using Content.Shared.IdentityManagement;
+using Content.Shared.Popups;
+using Content.Shared.Tag;
+using Content.Shared.Weapons.Melee.Events;
+
+namespace Content.Server.Weapons.Melee.Balloon;
+
+/// <summary>
+/// This handles popping ballons when attacked with <see cref="BalloonPopperComponent"/>
+/// </summary>
+public sealed class BalloonPopperSystem : EntitySystem
+{
+    [Dependency] private readonly SharedAudioSystem _audio = default!;
+    [Dependency] private readonly HandsSystem _hands = default!;
+    [Dependency] private readonly PopupSystem _popup = default!;
+    [Dependency] private readonly TagSystem _tag = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<BalloonPopperComponent, MeleeHitEvent>(OnMeleeHit);
+    }
+
+    private void OnMeleeHit(EntityUid uid, BalloonPopperComponent component, MeleeHitEvent args)
+    {
+        foreach (var entity in args.HitEntities)
+        {
+            foreach (var held in _hands.EnumerateHeld(entity))
+            {
+                if (_tag.HasTag(held, component.BalloonTag))
+                    PopBallooon(uid, held, component);
+            }
+
+            if (_tag.HasTag(entity, component.BalloonTag))
+                PopBallooon(uid, entity, component);
+        }
+    }
+
+    /// <summary>
+    /// Pops a target balloon, making a popup and playing a sound.
+    /// </summary>
+    public void PopBallooon(EntityUid popper, EntityUid balloon, BalloonPopperComponent? component = null)
+    {
+        if (!Resolve(popper, ref component))
+            return;
+
+        _audio.PlayPvs(component.PopSound, balloon);
+        _popup.PopupCoordinates(Loc.GetString("melee-balloon-pop",
+            ("balloon", Identity.Entity(balloon, EntityManager))), Transform(balloon).Coordinates, PopupType.Large);
+        QueueDel(balloon);
+    }
+}