navigation vs BehaviorTree.CPP

navigation

ROS Navigation stack. Code for finding where the robot is and how it can get somewhere else. (by ros-planning)

Source Code

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BehaviorTree.CPP

Behavior Trees Library in C++. Batteries included. (by BehaviorTree)

behaviortree AI Robotics Games Coordination Ros state-machine

Source Code

behaviortree.dev

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navigation		BehaviorTree.CPP
	Project
4	Mentions	4
2,219	Stars	2,690
1.8%	Growth	2.5%
0.0	Activity	9.3
2 months ago	Latest Commit	7 days ago
C++	Language	C++
-	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

navigation

Posts with mentions or reviews of navigation. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-03-06.

How to use lockstep feature of Gazebo while using ROS.
1 project | /r/ROS | 28 Jul 2022
Multiple maps to the navigation stack
3 projects | /r/ROS | 6 Mar 2022
Where is the main function in ROS
1 project | /r/ROS | 7 Sep 2021

But to pick a random example, let's say you run example.launch from https://github.com/ros-planning/navigation/tree/noetic-devel/costmap_2d/launch
The Problem with Mono Repo =)
1 project | /r/ROS | 12 Apr 2021

Say hello to the official ros navstack lol.

BehaviorTree.CPP

Posts with mentions or reviews of BehaviorTree.CPP. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-22.

Coroutines make robot code easy for high schoolers
9 projects | news.ycombinator.com | 22 Jun 2023
ROS2 task/schedule/statemachine discussion
1 project | /r/ROS | 29 Oct 2022

Have a look at Behavior Trees, especially the BehaviorTreeCpp library https://www.behaviortree.dev The method is simple to understand, scales better than State Machines and if you implement the actions well they’re inherently modular. Nav2 uses them, and also BostonDynamics in their Spot SDK.
Facts about State Machines
7 projects | news.ycombinator.com | 29 Sep 2022

Unrelated to javascript, but in the robotics industry there is a trend towards Behaviour Trees. https://www.behaviortree.dev/ is a C++ library that was originally designed for controlling robots via ROS, but it appears to be decoupled from the ROS ecosystem so it could be used for other projects.
There is a basic UI available for editing the tree https://github.com/BehaviorTree/Groot
BehaviorTree.CPP: C++ behavior tree library, batteries included
1 project | news.ycombinator.com | 5 Oct 2021

What are some alternatives?

When comparing navigation and BehaviorTree.CPP you can also consider the following projects:

ardupilot - ArduPlane, ArduCopter, ArduRover, ArduSub source

ros2_control_demos - This repository aims at providing examples to illustrate ros2_control and ros2_controllers

linorobot - Autonomous ground robots (2WD, 4WD, Ackermann Steering, Mecanum Drive)

webots - Webots Robot Simulator

carla - Open-source simulator for autonomous driving research.

turtlebot3_simulations - Simulations for TurtleBot3

champ - MIT Cheetah I Implementation

pros - Source code for PROS kernel: open source C/C++ development for the VEX V5 microcontroller

elevation_mapping - Robot-centric elevation mapping for rough terrain navigation

mcl_3dl - A ROS node to perform a probabilistic 3-D/6-DOF localization system for mobile robots with 3-D LIDAR(s). It implements pointcloud based Monte Carlo localization that uses a reference pointcloud as a map.