loading works!!

src/game/Puzzle.cpp

@@ -38,7 +38,7 @@ namespace Generated
     }
     const StaticPuzzleCard& GetCard(const StaticPuzzleData& data, StaticPuzzleCardHandle H)
     {
-        // assert(IsValid(H));
+        assert(IsValid(H));
         return data.Cards[H.Idx];
     }
 
@@ -203,7 +203,7 @@ namespace Generated
         if (dataChanged)
         {
             char path[128]{0};
-            bx::snprintf(path, sizeof(path), "game/data/%s.pzl", obj.PuzzleName);
+            bx::snprintf(path, sizeof(path), "game/data/puzzles/%s.pzl", obj.PuzzleName);
             Serializer ser;
             ser.Init(path);
             if (Save(&obj, 1, ser))
@@ -231,4 +231,15 @@ namespace Generated
         lhs += rhs;
         return lhs;
     }
+    PuzPos operator-=(PuzPos lhs, const PuzPos& rhs)
+    {
+        lhs.X -= rhs.X;
+        lhs.Y -= rhs.Y;
+        return lhs;
+    }
+    PuzPos operator-(PuzPos lhs, const PuzPos& rhs)
+    {
+        lhs -= rhs;
+        return lhs;
+    }
 } // namespace Generated