Building an editor for your own JavaScript game?

Question

JavaScript

Good afternoon! I'm making a game in js using pixi.js as the graphic lib and matter.js as the physics library. Are there any ideas for a general concept for creating a map editor that creates an array of environmental objects, for example a stone, it has a collider, in the form of, say, a circle and a sprite (a picture of a stone). The stone class itself represents an interface for manipulating both the collider and the sprite, adhering to good programming style, the stone class is a facade pattern. As a result, the editor must create many different facades. What are the pitfalls when creating an editor? Nuances? If someone has already encountered the creation of this, could you share your experience?