Making 🍩
with state machines
Jenny Truong
@jen_ayy_
Donuts are
awesome and
visually appealing
State machines
are awesome and visually
appealing
and also intimidating
Uneaten
Eaten
Finite states
One finite state at a time
Uneateneaten??
An event is a
thing that
happened
Events cause state transitions
Uneaten
Eaten
Bite
A state machine
always has an
initial state
There can be final states
Getting ingredients
Initial state
Mix dry ingredients
Getting ingredients
Mix wet ingredients
Mixed
Gathered
Getting ingredients
Gathered
Parallel
states
Mix dry ingredients
Mix wet ingredients
Mixing
Mix dry ingredients
Getting ingredients
Mix wet ingredients
Gathered
Knead
Mixed
Mixing
Knead
Rise
Kneaded
Shape
Raisin Risen
Shape
Cook
Made hole-y
Shape
Made hole-y
Cook
Heat
Fry
Flip
Fry other side
375℉ 🔥
after 2 min
flipped
Compound
states
Cool down
Cook
Cooked
Glaze
Won't burn you
Glaze
Eat!
Smothered in deliciousness
Final
state
stately.ai
Thank you, ODevs!
@jen_ayy_
Making donuts with state machines
By David Khourshid
