move_and_slide
use move_and_collide
internally. It just calls move_and_collide
again once collision is occurred until there is no movement left or max_slides
calls of move_and_collide
used. If you want to replace move_and_slide
with move_and_collide
, then you need to use same approach. After each collision you can get remain velocity (it is returned by move_and_collide
function) and call move_and_collide
again adjusting velocity along collision's normal. Do it until remaining velocity is not zero (or at least close to zero) or max calls per frame is reached (you need to limit it too, because it might collide multiple hundreds times at some cases, freezing game).