Program Listing for File cost_critic.hpp

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// Copyright (c) 2023 Robocc Brice Renaudeau
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef NAV2_MPPI_CONTROLLER__CRITICS__COST_CRITIC_HPP_
#define NAV2_MPPI_CONTROLLER__CRITICS__COST_CRITIC_HPP_

#include <memory>
#include <string>

#include "nav2_costmap_2d/footprint_collision_checker.hpp"
#include "nav2_costmap_2d/inflation_layer.hpp"

#include "nav2_mppi_controller/critic_function.hpp"
#include "nav2_mppi_controller/models/state.hpp"
#include "nav2_mppi_controller/tools/utils.hpp"

namespace mppi::critics
{

class CostCritic : public CriticFunction
{
public:
  void initialize() override;

  void score(CriticData & data) override;

protected:
  bool inCollision(float cost, float x, float y, float theta);

  float costAtPose(float x, float y);

  float findCircumscribedCost(std::shared_ptr<nav2_costmap_2d::Costmap2DROS> costmap);

protected:
  nav2_costmap_2d::FootprintCollisionChecker<nav2_costmap_2d::Costmap2D *>
  collision_checker_{nullptr};
  float possibly_inscribed_cost_;

  bool consider_footprint_{true};
  float circumscribed_radius_{0};
  float circumscribed_cost_{0};
  float collision_cost_{0};
  float critical_cost_{0};
  float weight_{0};

  float near_goal_distance_;
  std::string inflation_layer_name_;

  unsigned int power_{0};
};

}  // namespace mppi::critics

#endif  // NAV2_MPPI_CONTROLLER__CRITICS__COST_CRITIC_HPP_