board_state_calculator.hpp

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#pragma once
 
#include <gameboard/board_data_structs.hpp>
#include <concepts>
#include <memory>
#include <gameboard/move_data_structs.hpp>
 
template <typename T>
concept BoardStateCalculatorConcept = requires(
    T t,
    const gameboard::BoardMap_t &board_map,
    const gameboard::ExecutedMove &executed_move,
    uint32_t seed
 
) {
  { t.FullBoardStateCalc(board_map) } -> std::same_as<void>;
  { t.UpdateBoardState(executed_move) } -> std::same_as<void>;
  { t.Create(seed) } -> std::same_as<std::shared_ptr<T>>;
};
 
class NullBoardStateCalculator {
 
public:
  static std::shared_ptr<NullBoardStateCalculator> Create(uint32_t seed = 0) {
    return std::shared_ptr<NullBoardStateCalculator>(new NullBoardStateCalculator());
  }
  void FullBoardStateCalc(const gameboard::BoardMap_t &board_map) {}
  void UpdateBoardState(const gameboard::ExecutedMove &executed_move) {}
 
private:
  NullBoardStateCalculator() = default;
};