Currently, the
speed is related to the distance. If you've got something in a mathematical formula, and you want to get rid of it, you
divide by it. For example in algebra, '23a' divided by '23' is just 'a' -- no more 23.
So all we need to do is divide by the actual distance the sprite needs to travel.
To calculate the distance, we rely on another 2000 year-old Greek dude:
You may have been wondering over recent years why you've been
taught so much about triangles and 2000 year-old Greek dudes, and now you know the answer -- it's so
you can write awesome games.