I updated the parallax to just move in one x direction.... You are free to change the values... The white lines are just for a better understanding of the movement. The square player is also just for a better view of the One-sided parallax.
100% by me and this was really easy to make if i say frankly. The player does not go below X = 0. It can go X > 0, Y < 0 AND Y > 0. Updates - 4-2-22 - Shared, added left and right parallax option.