How do I change the physical collision mask in an event?
if you turn off “all animations share the same collision mask” option, you can use the change animation function to select a different collision mask
Use custom collision on different animations. Then you can switch to the appropriate animations according to the event where you need the mask changed.
http://wiki.compilgames.net/doku.php/gdevelop5/objects/sprite/collision-mask#collision_masks_for_sprite_objects
- Collision mask for Physics 2