def add_road(self, goal_intersection, direction: Direction):
"""
Add an outgoing lane to goal_intersection, which is at direction
"""
road = Road(self, goal_intersection, direction.opposite())
self.outgoing_roads[direction] = road
goal_intersection.incoming_roads[direction.opposite()] = road
def _construct_road_row(self, row_index: int) -> List[Road]:
switcher = {
0: 2 * self.width,
1: self.width + 1,
2: 2 * self.width,
3: self.width
}
return [Road() for i in range(switcher[row_index % 4])]