Collision Mask Is not Applied for Physics 2.0

[Silver-Streak]

@JessicaSunlight

So you ONLY allowed convex shape collision masks, be it sprite for collision check or physics?

2D Game engines in general tend to only allow Convex shapes, correct. As far as I know all 2D physics libraries(at least public ones) exclusively support convex shapes only. GDevelop uses the Box2D library for it’s physics, which also does not allow concave shapes.

@JessicaSunlight

Zero possibility to make more precise collision mask like I have on the screenshot?

On non-physics behavior sprite objects, you can add multiple collision masks to a single sprite object, and could use that to build out concave shapes with multiple concave polygons.

@JessicaSunlight

I just recall from the past CONVEX shape was not a mandatory at list not for a physics as I was making it as weird as I wanted.

I went back as far as GD5 beta 0.89 from a few years back, and even there only singular concave shapes were allowed. I also confirmed Box2D has never supported concave shapes. Maybe you’re thinking of non-physics objects with multiple mask polygons?

@JessicaSunlight

P.S. - Any way to copy/past behavior from one object to another?

Closest way I can think of would be to duplicate the original object and then modify it as needed to be a new object. If you’re needing a different object type, you cannot paste behaviors as some behaviors are object type specific.