I’m currently building a level editor for my game and i’m having some trouble on how to change vertices of a polygon.
Basicly i searched the web trying to figure out how to update the vertices of a polygon and everytime people keep saying that you have to destroy the fixture of your body and recreate a new one with the new coordinates. Is there another way the change that ? I only want to update one vertices, for example if i click on the top left of my rectangle, drag it somewhere, the top left corner will follow my mouse and change the rectangle.
Another question is how do i display the vertices of my polygon ? When i click on a polygon, my camera is put on the center of it and i’d like to display each vertices with a square showing to the user that on a simple click-drag he can move a vertices. I have make a little drawing of my question :
(apologies for my great paint skills 
)
Do i have to display n-sprites (depending on how much corner i have), and put a listener on them ?
Thanks for your help !