public double cost() {
double totalCost = 0;
for (MyVehicle v : vehicleActions.keySet()) {
City c = v.homeCity();
long vehicleDistanceSum = 0;
for (Action action : vehicleActions.get(v)) {
vehicleDistanceSum += c.distanceUnitsTo(action.getCity());
c = action.getCity();
}
double vehicleCost = Measures.unitsToKM(vehicleDistanceSum * v.costPerKm());
totalCost += vehicleCost;
}
return totalCost;
}
