also the map uses tune ground_jump_impulse 0 so on places where i'm going towards a corner and want to quickly move leftwards, i can jump as soon as i skim the corner. Since the ground jump impulse is 0, this will set my vertical velocity to 0 and i will remain on the ground. in the case if I didn't jump, i would still be travelling upwards for a tiny bit more and would be slower since ground speed > air speed