Add retrieval with fall-back.

module/Library/Utils/Dictionary.cpp

@@ -23,6 +23,7 @@ void Register_Dictionary(HSQUIRRELVM vm, Table & ns)
         // Member Methods
         .Func(_SC("Get"), &SqDictionary::Get)
         .Func(_SC("Set"), &SqDictionary::Set)
+        .Func(_SC("GetOr"), &SqDictionary::GetOr)
         .Func(_SC("Clear"), &SqDictionary::Clear)
         .Func(_SC("Erase"), &SqDictionary::Erase)
         .Func(_SC("Contains"), &SqDictionary::Contains)

module/Library/Utils/Dictionary.hpp

@@ -150,6 +150,19 @@ struct SqDictionary
         SQ_UNREACHABLE
     }
 
+    /* --------------------------------------------------------------------------------------------
+     * Retrieve a value from the container or a fall-back if it doesn't exist.
+    */
+    SQMOD_NODISCARD LightObj & GetOr(SqKeyHash k, LightObj & v)
+    {
+        for (auto & e : mC)
+        {
+            if (e.first == k.mH) return e.second;
+        }
+        // Use fall-back
+        return v;
+    }
+
     /* --------------------------------------------------------------------------------------------
      * Modify a value from the container.
     */