crayons deleted when used up (#7282)

Content.Server/Crayon/CrayonComponent.cs

@@ -25,6 +25,10 @@ namespace Content.Server.Crayon
         [DataField("capacity")]
         public int Capacity { get; set; } = 30;
 
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("deleteEmpty")]
+        public bool DeleteEmpty = true;
+
         [ViewVariables] public BoundUserInterface? UserInterface => Owner.GetUIOrNull(CrayonUiKey.Key);
 
         void ISerializationHooks.AfterDeserialization()

Content.Server/Crayon/CrayonSystem.cs

@@ -51,7 +51,11 @@ public sealed class CrayonSystem : EntitySystem
 
         if (component.Charges <= 0)
         {
-            _popup.PopupEntity(Loc.GetString("crayon-interact-not-enough-left-text"), uid, Filter.Entities(args.User));
+            if (component.DeleteEmpty)
+                UseUpCrayon(uid, args.User);
+            else
+                _popup.PopupEntity(Loc.GetString("crayon-interact-not-enough-left-text"), uid, Filter.Entities(args.User));
+
             args.Handled = true;
             return;
         }
@@ -74,6 +78,9 @@ public sealed class CrayonSystem : EntitySystem
         Dirty(component);
         _logs.Add(LogType.CrayonDraw, LogImpact.Low, $"{EntityManager.ToPrettyString(args.User):user} drew a {component._color:color} {component.SelectedState}");
         args.Handled = true;
+
+        if (component.DeleteEmpty && component.Charges <= 0)
+            UseUpCrayon(uid, args.User);
     }
 
     private void OnCrayonUse(EntityUid uid, CrayonComponent component, UseInHandEvent args)
@@ -119,4 +126,10 @@ public sealed class CrayonSystem : EntitySystem
         if (TryComp<ActorComponent>(args.User, out var actor))
             component.UserInterface?.Close(actor.PlayerSession);
     }
+
+    private void UseUpCrayon(EntityUid uid, EntityUid user)
+    {
+        _popup.PopupEntity(Loc.GetString("crayon-interact-used-up-text", ("owner", uid)), user, Filter.Entities(user));
+        EntityManager.QueueDeleteEntity(uid);
+    }
 }

Resources/Locale/en-US/crayon/crayon-component.ftl

@@ -3,6 +3,7 @@
 
 crayon-drawing-label = Drawing: [color={$color}]{$state}[/color] ({$charges}/{$capacity})
 crayon-interact-not-enough-left-text = Not enough left.
+crayon-interact-used-up-text = The {$owner} got used up.
 crayon-interact-invalid-location = Can't reach there!
 
 ## UI