Make projectiles not hit crates unless clicked on (#28072)

Content.Shared/Damage/Systems/RequireProjectileTargetSystem.cs

@@ -0,0 +1,51 @@
+using Content.Shared.Projectiles;
+using Content.Shared.Weapons.Ranged.Components;
+using Content.Shared.Standing;
+using Robust.Shared.Physics.Events;
+
+namespace Content.Shared.Damage.Components;
+
+public sealed class RequireProjectileTargetSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<RequireProjectileTargetComponent, PreventCollideEvent>(PreventCollide);
+        SubscribeLocalEvent<RequireProjectileTargetComponent, StoodEvent>(StandingBulletHit);
+        SubscribeLocalEvent<RequireProjectileTargetComponent, DownedEvent>(LayingBulletPass);
+    }
+
+    private void PreventCollide(Entity<RequireProjectileTargetComponent> ent, ref PreventCollideEvent args)
+    {
+        if (args.Cancelled)
+          return;
+
+        if (!ent.Comp.Active)
+            return;
+
+        var other = args.OtherEntity;
+        if (HasComp<ProjectileComponent>(other) &&
+            CompOrNull<TargetedProjectileComponent>(other)?.Target != ent)
+        {
+            args.Cancelled = true;
+        }
+    }
+
+    private void SetActive(Entity<RequireProjectileTargetComponent> ent, bool value)
+    {
+        if (ent.Comp.Active == value)
+            return;
+
+        ent.Comp.Active = value;
+        Dirty(ent);
+    }
+
+    private void StandingBulletHit(Entity<RequireProjectileTargetComponent> ent, ref StoodEvent args)
+    {
+        SetActive(ent, false);
+    }
+
+    private void LayingBulletPass(Entity<RequireProjectileTargetComponent> ent, ref DownedEvent args)
+    {
+        SetActive(ent, true);
+    }
+}