Sphere to AABB collision

     I had a problem today when trying to detect sphere to AABB collision. For some reason the collision check that I made was never turning true even though I could clearly see the sphere hitting the AABB. This was a big problem as we needed this collision to detect whether any entities are hitting walls.

    I discovered that the problem with this bug was that I was improperly getting the closest point in the AABB to the sphere. The way I fixed this problem this problem was by getting the max vertex that the circle center could be and using that to get the closest point on the AABB to then determine the minimum vertex between the sphere's max vertex and the max of the AABB.  Once I found this point, I could properly compare the distance of that point to the center of the sphere. This solution will allow detection between walls and any sphere collider such as the player collider, and enemy collider. This is very important to make sure they both stay within the level bounds.