Gets all objects that have the proper Tag. They will be stored inside a grid of Grid Size. The size should be around the distance between each gameobjects to ensure that the minimum amount of points are inside each square.

The reason for that is to:

• Discard points that their distance between items, because of it being so small, wouldn’t make rellevant changes to the terrain
• Discard points that at certain mesh sizes, because the distance is so small, it would stutter and reduce performance by a lot.