HoneHoneBone Editor

HHB Editor is a web-based bone animation editor for GDevelop.

Traditional GDevelop sprite animations require a large number of images for each animation.
In contrast, the bone animation system used by HHB Editor only requires a single atlas image plus JSON data, significantly reducing file size and loading time.

It also enables organic motion through bone hierarchies, mesh deformation, and weight painting.
In addition, the LiveBone feature allows physics to be applied to bones, enabling natural secondary motion such as hair, clothing, and tails swaying in response to character movement.

🚫 Limitations

This editor is designed to make bone animation relatively easy to create.
Therefore, it is not suitable for producing highly complex animations that rely on advanced features.

For example, it cannot achieve the kind of pseudo-3D expressions commonly seen in tools like Live2D, which are often used by VTubers.

GDevelop already supports (though not fully) Spine, which has a more advanced editor.
If you need to create more sophisticated animations, consider using Spine.

📖 How to Use

Please watch the video.

To play HHB animations in GDevelop, the HoneHoneBone Extension is required.
You can download the extension for free from the link below.

On the HoneHoneBone Extension for GDevelop page, you can download GDevelop project files that include HHB animation data files (.json).
By opening them in the HHB Editor, you can see how the animations are created.

💡 Tips

• The editor’s point (0,0) becomes the origin of the sprite in GDevelop. (Changing it later is difficult.)
• Parts can only be cut out as rectangles, so be careful with how you arrange them in the atlas image.
• It is recommended to leave some padding in the atlas image.
• Double-clicking a bone’s origin or tip allows you to add a child bone.
• Bone length itself has little meaning. (It’s recommended to keep child bones slightly separated for easier rotation.)
• Double-clicking a keyframe opens the easing settings dialog.

⏳ Planned Features

• Load files via drag-and-drop
• Editor settings (background color, grid color, etc.)
• UI improvements

📜 License

HoneHoneBone can be freely used in any kind of project, whether commercial or non-commercial.