add LuaGeneratorScript::loadStructures

src/world/generator/GeneratorDef.hpp

@@ -101,7 +101,7 @@ public:
     virtual ~GeneratorScript() = default;
 
     /// @brief Load all structures
-    //virtual std::vector<std::shared_ptr<VoxelStructure>> loadStructures() = 0;
+    virtual std::vector<std::shared_ptr<VoxelStructure>> loadStructures() = 0;
 
     /// @brief Generates a heightmap with values in range 0..1
     /// @param offset position of the heightmap in the world

src/world/generator/WorldGenerator.cpp

@@ -46,6 +46,8 @@ WorldGenerator::WorldGenerator(
         }
         generateHeightmap(found->second.get(), x, z);
     });
+
+    structures = def.script->loadStructures();
 }
 
 WorldGenerator::~WorldGenerator() {}

src/world/generator/WorldGenerator.hpp

@@ -62,7 +62,7 @@ class WorldGenerator {
     /// @brief Chunk prototypes loading surround map
     SurroundMap surroundMap;
 
-    std::vector<std::unique_ptr<VoxelStructure>> structures;
+    std::vector<std::shared_ptr<VoxelStructure>> structures;
 
     /// @brief Generate chunk prototype (see ChunkPrototype)
     /// @param x chunk position X divided by CHUNK_W