Program Listing for File IntermittentExtrospectiveStateRotateService.hpp

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#pragma once
#ifndef DISH2_SERVICES_INTERMITTENTEXTROSPECTIVESTATEROTATESERVICE_HPP_INCLUDE
#define DISH2_SERVICES_INTERMITTENTEXTROSPECTIVESTATEROTATESERVICE_HPP_INCLUDE

#include <algorithm>
#include <numeric>

#include "../../../third-party/conduit/include/uitsl/debug/WarnOnce.hpp"
#include "../../../third-party/conduit/include/uitsl/math/shift_mod.hpp"
#include "../../../third-party/Empirical/include/emp/base/vector.hpp"
#include "../../../third-party/Empirical/include/emp/math/random_utils.hpp"
#include "../../../third-party/signalgp-lite/include/sgpl/algorithm/execute_cpu.hpp"
#include "../../../third-party/signalgp-lite/include/sgpl/utility/ThreadLocalRandom.hpp"

#include "../cell/cardinal_iterators/ExtrospectiveStateIndexedSwapWrapper.hpp"
#include "../cell/cardinal_iterators/ExtrospectiveStateWrapper.hpp"
#include "../config/cfg.hpp"
#include "../debug/LogScope.hpp"

namespace dish2 {

struct IntermittentExtrospectiveStateRotateService {

  // for intermittent writable state rotation restoration
  inline static thread_local size_t current_rotation{};

  static bool ShouldRun( const size_t update, const bool alive ) {
    const size_t freq
      = dish2::cfg.INTERMITTENT_STATE_PERTURB_SERVICES_FREQUENCY();
    return
      alive
      && freq > 0
      && uitsl::shift_mod( update, freq ) == 0;
  }

  template<typename Cell>
  static void DoService( Cell& cell ) {

    const dish2::LogScope guard{
      "intermittent extrospective state rotate service", "TODO", 3
    };

    using spec_t = typename Cell::spec_t;

    const auto& perm_config = cell.genome->GetRootPerturbationConfig();

    if ( !perm_config.ShouldRotateExtrospectiveState() ) return;

    // for experimental simplicity rotate by constant
    const size_t rotation = 1;
    // sgpl::tlrand.Get().GetUInt(
    //   cell.GetNumCardinals()
    // );

    // stash rotation to be reversed in restore service
    emp_assert( current_rotation == 0 );
    current_rotation = rotation;

    using indexed_swapper_t = dish2::ExtrospectiveStateIndexedSwapWrapper<spec_t>;

    const auto& target_idx = perm_config.extrospective_state_target_idx;
    if ( target_idx.has_value() ) std::rotate(
      cell.template begin<indexed_swapper_t>( *target_idx ),
      cell.template begin<indexed_swapper_t>( *target_idx ) + rotation,
      cell.template end<indexed_swapper_t>()
    ); else std::rotate(
      cell.template begin<dish2::ExtrospectiveStateWrapper<spec_t>>(),
      cell.template begin<dish2::ExtrospectiveStateWrapper<spec_t>>()
        + rotation,
      cell.template end<dish2::ExtrospectiveStateWrapper<spec_t>>()
    );

  }

};

} // namespace dish2

#endif // #ifndef DISH2_SERVICES_INTERMITTENTEXTROSPECTIVESTATEROTATESERVICE_HPP_INCLUDE