speed:
1 2 3 4 5 6 7
rules: pixel changes based on color count of 8 neighbers
cytoplasm: slowly grow
cell wall: quickly grow around cytoplasm
virus: grow inside cytoplasm, destroy cell wall
/ ⇒ if = 3
⇒ if > 3 | = 0
⇒ if = 0
⇒ if > 1
⇒ if > 0 & > 0 & = 0
⇒ if = 3 | (3 > > 0 & > 0)