def pheromone_bias(world: World, position: Position, direction: Direction,
weight: float) -> float:
try:
loc: Location = world.get_location(position.x + direction.get()[0],
position.y + direction.get()[1])
return weight + (bias * loc.get_pheromone_count()
if loc.is_free() and weight != 0 else 0)
except IndexError:
return 0
def exploration_bias(world: World, position: Position,
direction: Direction, weight: float) -> float:
try:
loc: Location = world.get_location(position.x + direction.get()[0],
position.y + direction.get()[1])
return weight * (tanh((age - 130) / 10) + 2 # weight * 5 * (tanh((age - 130)/(10)) + 1.2 #
) if (loc.get_pheromone_count() <= FORAGING_PHEROMONE_THRESHOLD and
loc.get_brood_pheromone_count() <= FORAGING_PHEROMONE_THRESHOLD) or \
loc.get_foraging_pheromone_count() > FORAGING_PHEROMONE_THRESHOLD else weight
except IndexError:
return 0