Langton's Ant

const w = element("w", "white")

const b = element("b", "black")

const wAnt = kind("wAnt")

const bAnt = kind("bAnt")

// R=Right, B=Bottom, L=Left, T=Top

const wL = element("wL", "red", [wAnt])

// ...7 more elements (color/facing)

wAnt.to(b)

bAnt.to(w)

w.to(wL).is(RIGHT, wB)

// ...15 more rules (color/facing/turn)

const langtonsAnt = create()