Add whatever I was working on for the last month

1 files changed, 51 insertions, 0 deletions

diff --git a/game/server/overworld.hh b/game/server/overworld.hh
new file mode 100644
index 0000000..dbe66d0
--- /dev/null
+++ b/game/server/overworld.hh
@@ -0,0 +1,51 @@
+#ifndef SERVER_OVERWORLD_HH
+#define SERVER_OVERWORLD_HH 1
+#pragma once
+
+#include "core/config.hh"
+
+#include "shared/const.hh"
+#include "shared/dimension.hh"
+
+struct Metadata_2501 final {
+    std::array<std::uint64_t, CHUNK_AREA> entropy;
+    std::array<voxel_pos::value_type, CHUNK_AREA> heightmap;
+};
+
+class Overworld final : public Dimension {
+public:
+    explicit Overworld(const char *name);
+    virtual ~Overworld(void) = default;
+
+public:
+    virtual void init(Config &config) override;
+    virtual void init_late(std::uint64_t global_seed) override;
+    virtual bool generate(const chunk_pos &cpos, VoxelStorage &voxels) override;
+
+private:
+    float get_noise(const voxel_pos &vpos, std::int64_t variation);
+    Metadata_2501 &get_metadata(const worldgen_chunk_pos &cpos);
+    void generate_terrain(const chunk_pos &cpos, VoxelStorage &voxels);
+    void generate_surface(const chunk_pos &cpos, VoxelStorage &voxels);
+    void generate_carvers(const chunk_pos &cpos, VoxelStorage &voxels);
+    void generate_features(const chunk_pos &cpos, VoxelStorage &voxels);
+
+private:
+    ConfigInt m_terrain_variation;
+    ConfigInt m_bottommost_chunk;
+    ConfigBoolean m_enable_surface;
+    ConfigBoolean m_enable_carvers;
+    ConfigBoolean m_enable_features;
+
+private:
+    emhash8::HashMap<worldgen_chunk_pos, Metadata_2501> m_metadata;
+    std::mt19937_64 m_twister;
+    fnl_state m_fnl_terrain;
+    fnl_state m_fnl_caves_a;
+    fnl_state m_fnl_caves_b;
+
+private:
+    std::mutex m_mutex;
+};
+
+#endif /* SERVER_OVERWORLD_HH */