How to skip move outside of wall in grid movement?

How do you move outside of the wall in grad movement? I just want the character skip those wall area. When the character is in front of the wall. If I press right again, he moves outside of the wall. Whats the best way to do that without setting up teleport in every single square.

make invisible squares in the direction you're touching the wall and the first square that dosen'T collide with a wall is where you wanna go