1 Wall updates smoothly

Too fast though. Need to use the screen percentage instead of pixels.
Figure out how to update slower - maybe less points?
Tidied code up

Still need to make it move slower and go by percentage instead of pixels
One continuous line works

Need to work out how to slow down. Tried adding in a count to slowly
move points. Maybe need to add more points and that can be the velocity?
Merge branch 'basics'