1 files changed, 19 insertions, 5 deletions
diff --git a/serialize/wall-atlas.cpp b/serialize/wall-atlas.cpp
index 6f29026d..e2e6eee8 100644
--- a/serialize/wall-atlas.cpp
+++ b/serialize/wall-atlas.cpp
@@ -101,14 +101,28 @@ Info read_info_header(const json& jroot)
     return val;
 }
 
+void write_direction_metadata(json& jroot, const Direction& dir, Direction_ i)
+{
+    auto name = std::string_view{direction_index_to_name((size_t)i)};
+    auto j = json{json::value_t::object};
+    fm_assert(!jroot.contains(name));
+
+    for (auto [s_, memfn, tag] : Direction::members)
+    {
+        std::string_view s = s_;
+        const auto& group = dir.*memfn;
+        write_group_metadata(j[s], group);
+    }
+
+    jroot[name] = std::move(j);
+}
+
 void write_group_metadata(json& jgroup, const Group& val)
 {
-    fm_soft_assert(jgroup.is_object());
-    fm_soft_assert(jgroup.empty());
+    fm_assert(jgroup.is_object());
+    fm_assert(jgroup.empty());
 
-    //jgroup[""s] = ;
-    if (val.index != none)
-        jgroup["index"s] = val.index;
+    jgroup["index"s] = val.index;
     jgroup["count"s] = val.count;
     jgroup["pixel-size"s] = val.pixel_size;
     jgroup["tint-mult"s] = Vector4(val.tint_mult);