def on_car_positions(self, data, tick):
car = self.my_car()
if not car.crashed:
cur_index = self.my_car().track_piece_index
macro_index = self.track.macro_piece_map[cur_index]
next_macro_beginning = self.track.reverse_macro_map[(macro_index + 1) % len(self.track.reverse_macro_map)]
lane = car.lane()
next_macro_beginning_piece = car.track.track_pieces[next_macro_beginning]
next_macro_radius = next_macro_beginning_piece.true_radius(lane)
#next_macro_target_speed = physics.estimate_stable_speed_at_angle(next_macro_radius, physics.crash_angle_buffered())
next_macro_target_speed = physics.estimate_safe_speed_at_angle(next_macro_radius, physics.crash_angle_buffered())
if car.current_track_piece().is_straight:
if physics.distance_to_break(car.velocity, next_macro_target_speed) >= \
car.track.distance_until_index(car.track_piece_index,
car.in_piece_distance,
next_macro_beginning,
lane):
self.throttle(physics.throttle_to_reach_velocity(car.velocity, next_macro_target_speed), tick)
else:
self.throttle(1.0, tick)
else:
# it's a bend!
#FIXME: do the safe ending in a more intelligent way than adding one to the next piece index
#FIXME: this is just copied from the other bot, we want velocities, not throttles
the_until = (next_macro_beginning + 1) % car.track.track_piece_count
deduced_throttle = my_bisect(0.0, 1.0, 6, lambda t: physics.is_safe_until_simple(car, t, the_until, 0.0))
self.throttle(deduced_throttle, tick)
else:
self.ping()
def on_car_positions(self, data, tick):
car = self.my_car()
cur_index = car.track_piece_index
if not car.crashed:
# turning on Turbo at the beginning of the longest straight:
if cur_index == self.track.index_of_the_beginning_of_the_longest_straight_piece and self.turbo_available:
self.turbo("Buckle up!", tick)
return
macro_index = self.track.macro_piece_map[cur_index]
next_macro_beginning = self.track.reverse_macro_map[(macro_index + 1) % len(self.track.reverse_macro_map)]
lane = car.lane()
distance_until_next_macro = car.track.distance_until_index(car.track_piece_index,
car.in_piece_distance,
next_macro_beginning,
lane)
next_macro_beginning_piece = car.track.track_pieces[next_macro_beginning]
next_macro_radius = next_macro_beginning_piece.true_radius(lane)
next_macro_target_speed = physics.estimate_stable_speed_at_angle(next_macro_radius, physics.crash_angle_buffered())
### SWITCH ###
# should we consider switching? - is next piece a switch and is it legal now?
if not car.is_switching() and not self.switch_initiated and self.track.next_piece(cur_index).switch and \
len(self.track.lanes) > 1 and car.velocity > physics.safe_speed:
same_lane_and_close = self.other_cars_on_lane_within_distance(lane, 150)
if len(same_lane_and_close):
#there is somebody to go around
dirs = car.possible_lane_switch_directions()
switch_direction = random.choice(dirs)
target_lane = lane + switch_direction
print('checking if there is somebody blocking the other lane - {0}, after going in {1} direction'.format(target_lane, switch_direction))
opponents_on_target_lane = self.other_cars_on_lane_within_distance(target_lane, 250)
if not opponents_on_target_lane:
print("other lane is clear, let's see if physics says it is safe")
car_other_lane = copy.copy(car)
car_other_lane.start_lane_index += switch_direction
car_other_lane.end_lane_index += switch_direction
if physics.check_with_annealing(car_other_lane):
print("going to switch lane to in the {0} direction".format(switch_direction))
self.switch_lane_int(switch_direction, tick)
return
else:
print("staying here, switching is not safe!")
else:
print("somebody on the other lane, not switching now")
if self.switch_initiated:
print('reducing speed to be safe')
self.throttle(0.0, tick)
return
### end SWITCH ###
if car.current_track_piece().is_straight:
# straight!
should_run_like_hell = self.is_race() and \
car.lap == self.lap_count() - 1 and \
macro_index == len(self.track.reverse_macro_map) - 1 and \
car.current_track_piece().is_straight
if should_run_like_hell:
print("gotta go fast!")
if self.turbo_available:
self.turbo("Strap yourselves in boys!", tick)
else:
self.throttle(1.0, tick)
return
next_macro_target_speed = physics.estimate_safe_speed_at_angle(next_macro_radius, physics.crash_angle_buffered())
# simulating the car braking to the safe speed
car_at_next_macro = physics.simulate_straight_with_breaking_to_speed(car, distance_until_next_macro, next_macro_target_speed)
# end of the simulation with annealing
macro_plus_1 = (macro_index + 1) % len(self.track.reverse_macro_map)
# getting the best speed for the bend
deduced_speed = physics.estimate_optimal_speed_at_bend_with_annealing(car_at_next_macro,
car.track.reverse_macro_map[macro_plus_1],
True)
# planning the breaking, now with better values
# checking if we can afford it
# velocity and travelled distance in one step of full throttle
next_velocity, next_distance = physics.velocity_and_distance_step(car.velocity, 1.0)
# distance needed to break
breaking_distance = physics.distance_to_break(next_velocity, max(deduced_speed, next_macro_target_speed))
if breaking_distance + next_distance < distance_until_next_macro:
self.throttle(1.0, tick)
else:
self.throttle(0.0, tick)
else:
# it's a bend!
the_until = (next_macro_beginning + 1) % car.track.track_piece_count
deduced_speed = physics.estimate_optimal_speed_at_bend_with_annealing(car, the_until)
self.throttle(physics.throttle_to_reach_velocity(car.velocity, deduced_speed), tick)
else:
self.ping(tick)