What is godot-bounds-snapper?

Bounds Snapper is a small editor plugin for the Godot game engine that helps you line up 3D objects by snapping their bounding boxes to each other. Instead of manually nudging objects into place, you select one or more objects, hold a key, grab a corner of its bounding box with the mouse, and drag it toward another object's bounding box corner until it snaps into alignment. The tool understands several kinds of Godot nodes. It works with visible geometry such as mesh instances, CSG shapes, and multi mesh instances, with collision shapes like box, sphere, cylinder, and capsule colliders, and with groups of objects such as static bodies, packed scenes, or plain container nodes, where it automatically looks at all of the children to figure out the combined bounds. To use it, you first toggle the tool on using a button in the 3D viewport header, then select the object or objects you want to move. Holding the B key and hovering near a bounding box corner highlights it, clicking and holding the left mouse button starts the drag, and releasing the mouse applies the snap. Right clicking while dragging cancels the action instead. The plugin is written in C# and specifically requires the .NET, also called Mono, build of the Godot 4.2 or later editor, so it will not work with the standard GDScript only version of Godot. After downloading it, you must build the project using the hammer icon in the editor before the addon becomes usable. The author notes this is different from the vertex snapping that already ships with Godot itself, and lists concave and convex collision shape support as a planned but not yet finished feature. The project is released under the MIT license.