Behavior3+ Editor is primarily a standalone behavior tree editor (but probably can still be hosted online) that can be used with any library/engine. It's based on Behaviour3 Editor.
Create custom nodes, develop your bahavior trees, export them to JSON, parse them in your engine.
This version of the editor supports all of the luabehaviourtree 2e nodes out of the box and provides a visual and quality-of-life improvement over the original Behaviour3 Editor.
New features include:
- Cleaner overall visuals
- Node icons
- Property values displayed on the nodes in the tree
- New node type - Interrupts
- Automatic GitHub release builds
- Few other minor changes and bug fixes
Behaviour3+ Editor and luabehaviourtree 2e were actively used in the development of Mercy: Combat AI Overhaul (also on Nexus) for OpenMW
- Get the latest release from Releases page (Linux or Windows).
- On Windows ignore any warnings about unrecognized applications, click "more"->"Run anyway" and proceed with the installation. Trusted code certificates cost a lot and this is a hobby project :)
Take a look at luabehaviourtree 2e(TODO: add link) for a short introduction to behavior trees and an overview of the most important nodes, all while referencing screenshots from this very editor. Additionally, "behavior trees" are a general concept used in games, engines and robotics - so you should be able to find plenty of information online.
If you can't find an appropriate release for your OS or simply want to run directly from the source code - here's how:
- Install Node.js (v20.11.0 recommended), you can find a list of Node.js releases here.
- Download this repository, either with
git cloneor manually. - Open the console in the repository folder and run the following list of commands to install the dependencies (only need to be installed once):
npm install
npx bower install
npm run builddev- After that - you can run the following console command (still from the app's folder) to start the editor:
npm run startWhy should you use b3editor? What is different from other editors? Can it compete against commercial alternatives? - Well, check it out some characteristics of Behavior3+ Editor:
-
Open Source Software: under MIT license, you can use this software freely, adapt it to your need and even use a specialized internal version in your company. You can also contribute with bug fixes, suggestions and patches to make it better.
-
Open Format: b3editor can export the modeled trees to JSON files, following an open format. If there is no official reader on your favorite language yet, you can develop your own library and use the trees created here.
-
Focus on Usability: An easy, clean, and intuitive tool for programmers and non-programmers. If there is something obscure or too difficult to use, report it immediately!
-
Customizable: create your own node types and customize nodes instances individually. Create several projects and trees, change titles and add properties.
-
Does not depends on other tools/editors/engines.
- Custom Nodes: you can create your own node types inside one of the four basic categories - composite, decorator, action or condition.
- Individual Node Properties: you can modify node titles, description and custom properties.
- Manual and Auto Organization: organize by dragging nodes around or just type "a" to auto organize the whole tree.
- Create and Manage Multiple Trees: you can create and manage an unlimited number of trees.
- Import and Export to JSON: export your project, tree or nodes to JSON format. Import them back. Use JSON on your own custom library or tool. You decide.
Nothing is perfect =( . When running in a browser - Behavior3 Editor focus on Chrome(ium) (thus, working pretty well on Opera too), so it have some incompatibilities with Firefox, such as the image preview lag when dragging to create a node for the first time, and the ugly scroll bar inside the panels. Not tested on IE!