Optimizations

Runtime/QuestLog.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 
 namespace Jovian.EncounterSystem {
     public enum QuestLogEventType {
@@ -46,9 +45,12 @@ namespace Jovian.EncounterSystem {
         }
 
         public IEnumerable<string> ResolvedEncounterIds() {
-            return entries
-                .Select(entry => entry.encounterInternalId)
-                .Where(id => !string.IsNullOrEmpty(id));
+            for(int i = 0; i < entries.Count; i++) {
+                var id = entries[i].encounterInternalId;
+                if(!string.IsNullOrEmpty(id)) {
+                    yield return id;
+                }
+            }
         }
 
         private void Record(QuestLogEventType type, IEncounter from, IEncounter to) {