Containment Field Rework (#9312)

Content.Server/Singularity/EntitySystems/ContainmentFieldSystem.cs

@@ -0,0 +1,43 @@
+using Content.Server.Popups;
+using Content.Server.Shuttles.Components;
+using Content.Server.Singularity.Components;
+using Content.Shared.Popups;
+using Content.Shared.Tag;
+using Content.Shared.Throwing;
+using Robust.Shared.Physics;
+using Robust.Shared.Physics.Dynamics;
+using Robust.Shared.Player;
+
+namespace Content.Server.Singularity.EntitySystems;
+
+public sealed class ContainmentFieldSystem : EntitySystem
+{
+    [Dependency] private readonly ThrowingSystem _throwing = default!;
+    [Dependency] private readonly PopupSystem _popupSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<ContainmentFieldComponent, StartCollideEvent>(HandleFieldCollide);
+    }
+
+    private void HandleFieldCollide(EntityUid uid, ContainmentFieldComponent component, StartCollideEvent args)
+    {
+        var otherBody = args.OtherFixture.Body.Owner;
+
+        if (TryComp<SpaceGarbageComponent>(otherBody, out var garbage))
+        {
+            _popupSystem.PopupEntity(Loc.GetString("comp-field-vaporized", ("entity", otherBody)), component.Owner, Filter.Pvs(component.Owner), PopupType.LargeCaution);
+            QueueDel(garbage.Owner);
+        }
+
+        if (TryComp<PhysicsComponent>(otherBody, out var physics) && physics.Mass <= component.MaxMass && physics.Hard)
+        {
+            var fieldDir = Transform(component.Owner).WorldPosition;
+            var playerDir = Transform(otherBody).WorldPosition;
+
+            _throwing.TryThrow(otherBody, playerDir-fieldDir, strength: component.ThrowForce);
+        }
+    }
+}