update doc-comments

src/world/generator/GeneratorDef.hpp

@@ -149,6 +149,13 @@ public:
         uint bpd
     ) = 0;
 
+    /// @brief Generate a list of structures placements. Structures may be
+    /// placed to nearest N chunks also (position of out area), where N is 
+    /// wide-structs-chunks-radius
+    /// @param offset position of the area
+    /// @param size size of the area (blocks)
+    /// @param seed world seed
+    /// @param chunkHeight chunk height to use as heights multiplier
     virtual std::vector<Placement> placeStructuresWide(
         const glm::ivec2& offset, 
         const glm::ivec2& size, 

src/world/generator/WorldGenerator.cpp

@@ -17,7 +17,10 @@
 
 static debug::Logger logger("world-generator");
 
+/// @brief Max number of biome parameters
 static inline constexpr uint MAX_PARAMETERS = 4;
+
+/// @brief Initial + wide_structs + biomes + heightmaps + complete
 static inline constexpr uint BASIC_PROTOTYPE_LAYERS = 5;
 
 WorldGenerator::WorldGenerator(