1 files changed, 30 insertions, 0 deletions
diff --git a/src/server/chunk_data.hh b/src/server/chunk_data.hh
new file mode 100644
index 0000000..eea5cef
--- /dev/null
+++ b/src/server/chunk_data.hh
@@ -0,0 +1,30 @@
+#ifndef SERVER_CHUNK_DATA_HH_
+#define SERVER_CHUNK_DATA_HH_
+
+#include <memory>
+#include <optional>
+#include <unordered_set>
+
+#include "server/world.hh"
+#include "shared/player.hh"
+
+namespace server {
+
+struct chunk_data {
+public:
+    // nullopt = constructing/destructing via future operations in thread pool
+    // we use shared_ptr here to avoid complex moves in boost::asio::post.
+    // There is no good reason to use shared_ptr over unique_ptr, other than
+    // boost::asio::post requiring copy_constructable args in std::bind. 
+    std::optional<std::shared_ptr<server::world::chunk>> chunk;
+    // players associated with the chunk
+    std::unordered_set<shared::player::index_t> players;
+
+public:
+    server::world::chunk& get_chunk() noexcept { return *(*this->chunk); }
+    bool has_initialised() const noexcept { return chunk.has_value(); }
+};
+
+} // namespace server
+
+#endif