Simple LightCycle

I taught game programming in Greenfoot for rising 8th-11th grade summer camp this week. We decided to try to replicate the old LightCycle game as a fun and challenging goal.

Controls:

Gold Cycle - Use [a], [s], [d] and [w] for [West], [South], [East] and [North] (relative to "Grid" or world; not relative to cycle). Cycle goes automatically.

Blue Cycle - Use [left], [down], [right] and [up] for [West], [South], [East] and [North] (relative to "Grid" or world; not relative to cycle). Cycle goes automatically.