(23df6915f) Added: Possibility of having a status effect trigger if a requiredItem is missing

Barotrauma/BarotraumaShared/Source/Items/Item.cs

@@ -1553,7 +1553,7 @@ namespace Barotrauma
 
         public void Use(float deltaTime, Character character = null, Limb targetLimb = null)
         {
-            if (RequireAimToUse && (character == null || !character.IsKeyDown(InputType.Aim)))
+            if (RequireAimToUse && !character.IsKeyDown(InputType.Aim))
             {
                 return;
             }

Barotrauma/BarotraumaShared/Source/Items/RelatedItem.cs

@@ -17,7 +17,8 @@ namespace Barotrauma
         }
 
         public bool IsOptional { get; set; }
-        
+        public bool MatchOnEmpty { get; set; }
+
         public bool IgnoreInEditor { get; set; }
 
         private string[] excludedIdentifiers;
@@ -99,6 +100,11 @@ namespace Barotrauma
                     var containedItems = parentItem.ContainedItems;
                     if (containedItems == null) return false;
 
+                    if (MatchOnEmpty && !containedItems.Any(ci => ci != null))
+                    {
+                        return true;
+                    }
+
                     foreach (Item contained in containedItems)
                     {
                         if (contained.Condition > 0.0f && MatchesItem(contained)) return true;
@@ -222,6 +228,7 @@ namespace Barotrauma
 
             ri.IsOptional = element.GetAttributeBool("optional", false);
             ri.IgnoreInEditor = element.GetAttributeBool("ignoreineditor", false);
+            ri.MatchOnEmpty = element.GetAttributeBool("matchonempty", false);
             return ri;
         }
     }

Barotrauma/BarotraumaShared/Source/StatusEffects/StatusEffect.cs

@@ -424,6 +424,7 @@ namespace Barotrauma
         public virtual bool HasRequiredConditions(List<ISerializableEntity> targets)
         {
             if (!propertyConditionals.Any()) return true;
+            if (requiredItems.All(ri => ri.MatchOnEmpty) && targets.Count == 0) return true;
             switch (conditionalComparison)
             {
                 case PropertyConditional.Comparison.Or: