1 files changed, 71 insertions, 0 deletions
diff --git a/game/server/world/overworld.hh b/game/server/world/overworld.hh
new file mode 100644
index 0000000..4141105
--- /dev/null
+++ b/game/server/world/overworld.hh
@@ -0,0 +1,71 @@
+#ifndef SERVER_OVERWORLD_HH
+#define SERVER_OVERWORLD_HH 1
+#pragma once
+
+#include "core/config/number.hh"
+#include "core/io/config_map.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/feature.hh"
+
+#include "shared/const.hh"
+
+constexpr static unsigned int OW_NUM_TREES = 4U;
+
+namespace world
+{
+struct Overworld_Metadata final {
+    world::dimension_entropy_map entropy;
+    world::dimension_height_map heightmap;
+    std::vector<local_pos> trees;
+};
+} // namespace world
+
+namespace world
+{
+class Overworld final : public Dimension {
+public:
+    explicit Overworld(const char* name);
+    virtual ~Overworld(void) = default;
+
+public:
+    virtual void init(io::ConfigMap& config) override;
+    virtual void init_late(std::uint64_t global_seed) override;
+    virtual bool generate(const chunk_pos& cpos, VoxelStorage& voxels) override;
+
+private:
+    bool is_inside_cave(const voxel_pos& vpos);
+    bool is_inside_terrain(const voxel_pos& vpos);
+
+private:
+    const Overworld_Metadata& get_or_create_metadata(const chunk_pos_xz& cpos);
+
+private:
+    void generate_terrain(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_surface(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_caves(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_features(const chunk_pos& cpos, VoxelStorage& voxels);
+
+private:
+    config::Int m_terrain_variation;
+    config::Int m_bottommost_chunk;
+
+private:
+    emhash8::HashMap<chunk_pos_xz, Overworld_Metadata> m_metamap;
+
+private:
+    fnl_state m_fnl_variation;
+    fnl_state m_fnl_terrain;
+    fnl_state m_fnl_caves_a;
+    fnl_state m_fnl_caves_b;
+    fnl_state m_fnl_nvdi;
+
+private:
+    Feature m_feat_tree[OW_NUM_TREES];
+
+private:
+    std::mutex m_mutex;
+};
+} // namespace world
+
+#endif // SERVER_OVERWORLD_HH