Outdoor Basketball Court On Uneven Ground

I have a question on an outdoor basketball court…

I’d like to install a backboard and hoop in my yard. I live in the mountains of Colorado and my yard isn’t flat.

I’ve chosen the flattest spot to put the basketball hoop up but I’m concerned that there is still a considerable difference in elevation from one side of the court to the other. Perhaps a foot.

Will this have a negative impact on my son’s basketball shooting ability while he and I practice at home?