Nav2 Navigation Stack - jazzy  jazzy
ROS 2 Navigation Stack
single_trigger_node.hpp
1 // Copyright (c) 2021 Samsung Research America
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
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7 // http://www.apache.org/licenses/LICENSE-2.0
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9 // Unless required by applicable law or agreed to in writing, software
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12 // See the License for the specific language governing permissions and
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14 
15 #ifndef NAV2_BEHAVIOR_TREE__PLUGINS__DECORATOR__SINGLE_TRIGGER_NODE_HPP_
16 #define NAV2_BEHAVIOR_TREE__PLUGINS__DECORATOR__SINGLE_TRIGGER_NODE_HPP_
17 
18 #include <chrono>
19 #include <string>
20 
21 #include "behaviortree_cpp/decorator_node.h"
22 
23 namespace nav2_behavior_tree
24 {
25 
30 class SingleTrigger : public BT::DecoratorNode
31 {
32 public:
39  const std::string & name,
40  const BT::NodeConfiguration & conf);
41 
46  static BT::PortsList providedPorts()
47  {
48  return {};
49  }
50 
51 private:
56  BT::NodeStatus tick() override;
57 
58  bool first_time_;
59 };
60 
61 } // namespace nav2_behavior_tree
62 
63 #endif // NAV2_BEHAVIOR_TREE__PLUGINS__DECORATOR__SINGLE_TRIGGER_NODE_HPP_
A BT::DecoratorNode that triggers its child only once and returns FAILURE for every succeeding tick.
static BT::PortsList providedPorts()
Creates list of BT ports.
SingleTrigger(const std::string &name, const BT::NodeConfiguration &conf)
A constructor for nav2_behavior_tree::SingleTrigger.