function lazyRobot({place, parcels}, route) {

if (route.length == 0) {

// Describe a route for every parcel

let routes = parcels.map(parcel => {

if (parcel.place != place) {

return {route: findRoute(roadGraph, place, parcel.place),

pickUp: true};

} else {

return {route: findRoute(roadGraph, place, parcel.address),

pickUp: false};

}

});

// This determines the precedence a route gets when choosing.

// Route length counts negatively, routes that pick up a package

// get a small bonus.

function score({route, pickUp}) {

return (pickUp ? 0.5 : 0) - route.length;

}

route = routes.reduce((a, b) => score(a) > score(b) ? a : b).route;

}

return {direction: route[0], memory: route.slice(1)};

}

runRobotAnimation(VillageState.random(), lazyRobot, []);