extension/src/openvic-extension/Checksum.hpp


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#pragma once
#include "xxHash/include/xxhash.h"
#include <godot_cpp/core/class_db.hpp>
using namespace godot;
namespace OpenVic {
   class Checksum : public Object {
      GDCLASS(Checksum, Object)
      
      // INIT PART
      inline static Checksum* _checksum = nullptr;

   private:
      XXH64_hash_t hash_checksum;

   protected:
      static void _bind_methods();

   public:
      inline static Checksum* get_singleton() { return _checksum; }

      inline Checksum() {
         ERR_FAIL_COND(_checksum != nullptr);
         _checksum = this;
      }
      inline ~Checksum() {
         ERR_FAIL_COND(_checksum != this);
         _checksum = nullptr;
      }
      // END INIT
      void checksum_dir(XXH3_state_t* const state, PackedByteArray buffer, String directory_path);
      void calculate_checksum(String directory_path);
      XXH64_hash_t get_checksum() const;
   };
}