FollowActor.hh

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/*
 * Copyright (C) 2020 Open Source Robotics Foundation
 *
 * 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 IGNITION_GAZEBO_SYSTEMS_FOLLOWACTOR_HH_
#define IGNITION_GAZEBO_SYSTEMS_FOLLOWACTOR_HH_

#include <memory>
#include <ignition/gazebo/config.hh>
#include <ignition/gazebo/Export.hh>
#include <ignition/gazebo/System.hh>

namespace ignition
{
namespace gazebo
{
// Inline bracket to help doxygen filtering.
inline namespace IGNITION_GAZEBO_VERSION_NAMESPACE {
namespace systems
{
  // Forward declarations.
  class FollowActorPrivate;

  class IGNITION_GAZEBO_VISIBLE FollowActor:
    public System,
    public ISystemConfigure,
    public ISystemPreUpdate
  {
    public: explicit FollowActor();

    public: ~FollowActor() override;

    // Documentation inherited
    public: void Configure(const Entity &_entity,
                           const std::shared_ptr<const sdf::Element> &_sdf,
                           EntityComponentManager &_ecm,
                           EventManager &_eventMgr) final;

    public: void PreUpdate(const UpdateInfo &_info,
                           EntityComponentManager &_ecm) final;

    private: std::unique_ptr<FollowActorPrivate> dataPtr;
  };
  }
}
}
}
#endif