def move_agent(self, action_name, game_interface: HFOAttackingPlayer,
features: BaseHighLevelState):
""" Agent Moves/Dribbles in a specific direction """
# Get Movement type:
action = DRIBBLE_TO
if "UP" in action_name:
action = (action, features.agent.x_pos, -0.9)
elif "DOWN" in action_name:
action = (action, features.agent.x_pos, 0.9)
elif "LEFT" in action_name:
action = (action, -0.8, features.agent.y_pos)
elif "RIGHT" in action_name:
action = (action, 0.8, features.agent.y_pos)
else:
raise ValueError("ACTION NAME is WRONG")
attempts = 0
while game_interface.in_game() and attempts < self.action_num_episodes:
status, observation = game_interface.step(action,
features.has_ball())
features.update_features(observation)
attempts += 1
return game_interface.get_game_status(), \
game_interface.get_observation_array()
def set_start_game_conditions(features_manager: BaseHighLevelState,
hfo_interface: HFOAttackingPlayer,
wait: bool,
fixed_position: bool = False):
ball_pos = [features_manager.agent.ball_x, features_manager.agent.ball_y]
starting_corners = get_vertices_around_ball(ball_pos)
start_pos = random.choice(starting_corners)
aux_counter = 0
if wait:
while hfo_interface.in_game():
msg = hfo_interface.hfo.hear()
if msg == settings.PLAYER_READY_MSG:
# print("\n[HELIOS] HEARD MESSAGE!! Start Playing\n")
break
else:
if fixed_position:
hfo_action = (MOVE_TO, start_pos[0], start_pos[1])
_, observation = hfo_interface.step(hfo_action)
else:
_, observation = hfo_interface.step(NOOP)
features_manager.update_features(observation)
aux_counter += 1
if aux_counter == 120:
# print("\n[HELIOS] STILL WAITING!! Start Playing\n")
break
return
def kick_to_pos(self, pos: tuple, features: BaseHighLevelState,
game_interface: HFOAttackingPlayer):
""" The agent kicks to position expected """
hfo_action = (KICK_TO, pos[0], pos[1], 2)
status, observation = game_interface.step(hfo_action,
features.has_ball())
# Update features:
features.update_features(observation)
def move_to_pos(self, pos: tuple, features: BaseHighLevelState,
game_interface: HFOAttackingPlayer):
""" The agent keeps moving until reach the position expected """
curr_pos = features.get_pos_tuple(round_ndigits=1)
while pos != curr_pos:
hfo_action = (MOVE_TO, pos[0], pos[1])
status, observation = game_interface.step(hfo_action,
features.has_ball())
# Update features:
features.update_features(observation)
curr_pos = features.get_pos_tuple(round_ndigits=1)
def execute_action(self, action_idx: int,
game_interface: HFOAttackingPlayer,
features: BaseHighLevelState):
""" Receiving the idx of the action, the agent executes it and
returns the game status """
action_name = self.map_action_to_str(action_idx)
# KICK/SHOOT to goal
if action_name == "KICK_TO_GOAL":
status, observation = self.shoot_ball(game_interface, features)
# MOVE/DRIBBLE
elif "MOVE" in action_name or "DRIBBLE" in action_name:
status, observation = self.move_agent(action_name, game_interface,
features)
# DO NOTHING
elif action_name == "NOOP":
status, observation = self.do_nothing(game_interface, features)
else:
raise ValueError("Action Wrong name")
# Update Features:
features.update_features(observation)
return status
def shoot_ball(self, game_interface: HFOAttackingPlayer,
features: BaseHighLevelState):
""" Tries to shoot, if it fail, kicks to goal randomly """
# Get best shoot angle:
angles = []
goalie_coord = np.array([features.opponents[0].x_pos,
features.opponents[0].y_pos])
player_coord = np.array(features.get_pos_tuple())
for goal_pos in self.shoot_possible_coord:
angles.append(get_angle(goalie=goalie_coord, player=player_coord,
point=goal_pos))
idx = int(np.argmax(np.array(angles)))
best_shoot_coord = self.shoot_possible_coord[idx]
# Action parameters:
hfo_action = (KICK_TO, best_shoot_coord[0], best_shoot_coord[1], 2.5)
# Step game:
_, obs = game_interface.step(hfo_action, features.has_ball())
# Update features:
features.update_features(obs)
return game_interface.get_game_status(), \
game_interface.get_observation_array()
def dribble_to_pos(self, pos: tuple, features: BaseHighLevelState,
game_interface: HFOAttackingPlayer):
""" The agent keeps dribbling until reach the position expected """
def check_valid_pos(pos_tuple: tuple):
for pos_aux in pos_tuple:
try:
num_digits = len(str(pos_aux).split(".")[1])
if num_digits >= 2:
return False
except IndexError:
pass
return True
if check_valid_pos(pos) is False:
raise Exception("Initial positions invalid. Initial positions "
"should be a float with 1 digit or less")
curr_pos = features.get_pos_tuple(round_ndigits=1)
while pos != curr_pos:
hfo_action = (DRIBBLE_TO, pos[0], pos[1])
status, observation = game_interface.step(hfo_action,
features.has_ball())
# Update features:
features.update_features(observation)
curr_pos = features.get_pos_tuple(round_ndigits=1)
def no_ball_action(self, game_interface: HFOAttackingPlayer,
features: BaseHighLevelState) -> int:
action = (MOVE, )
status, observation = game_interface.step(action, features.has_ball())
features.update_features(observation)
return status
# Initialize connection with the HFO server
hfo_interface = HFOAttackingPlayer(num_opponents=num_op,
port=port,
num_teammates=num_team)
hfo_interface.connect_to_server()
uniform_id = hfo_interface.hfo.getUnum()
teammate_id = 7 if uniform_id == 11 else 11
print("<< Start HELIOS AGENT ID {} >> wait_for_teammate={}; "
"teammate_id={}".format(uniform_id, wait_for_teammate, teammate_id))
# Get number of features and actions
features_manager = BaseHighLevelState(num_op=num_op, num_team=num_team)
for i in range(num_episodes):
observation = hfo_interface.reset()
features_manager.update_features(observation)
# Set start game conditions:
set_start_game_conditions(features_manager=features_manager,
hfo_interface=hfo_interface,
wait=wait_for_teammate,
fixed_position=starts_fixed_position)
# Update environment features:
features_manager.update_features(hfo_interface.get_observation())
last_action = -1
attempts_to_shoot = 0
last_action_failed = False
while hfo_interface.in_game():
# Features: