Learning new coding

In our studio session we were taught how to set up our own code settings and how to make moving sketches.
We used the codes 'Void setup' and 'Void draw'. To practise these i decided to make a pacman shape that move across the screen.

This was my outcome:
To see the moving sketch in open processing click this link:

A problem i came across when creating my own sketch was that when i made an 'ellipse' shape it would stay in on place and create a black line along the screen as it moved. To fix this i made a new backgroud setting in my void draw section, which redrew a new white background each time the ellipse moved.