def act(self, game_actions, alert_coord):
self.actions = game_actions
if self.creature in self.ai_state:
chase_coord, chase_vector = self.ai_state[self.creature]
else:
chase_coord, chase_vector = None, None
if self.actions.target_in_sight(alert_coord):
# passive actions
if chase_coord is not None and chase_coord != alert_coord:
chase_vector = get_vector(chase_coord, alert_coord)
chase_coord = alert_coord
# actions
if self.actions.can_reach(alert_coord):
feedback = self.actions.attack(
get_vector(self.coord, alert_coord))
else:
feedback = self._move_towards(alert_coord)
else:
# chasing and already at the target square and has a chase vector to pursue
if chase_coord == self.coord:
if chase_vector is not None:
# resize the chase vector to the creatures sight so the self.creature can just go there
chase_vector = resize_vector_to_len(
chase_vector, self.creature.sight)
# calculate a new target square
overarching_target = add_vector(self.coord, chase_vector)
chase_coord = self.level.get_last_pathable_coord(
self.coord, overarching_target)
# if an obstacle is hit end chase
if self.coord == chase_coord:
chase_coord, chase_vector = None, None
else:
chase_coord = None
# actions
if chase_coord is not None:
feedback = self._move_towards(chase_coord)
else:
feedback = self._move_random()
if chase_coord is not None or chase_vector is not None:
self.ai_state[self.creature] = chase_coord, chase_vector
else:
self.remove_creature_state(self.creature)
assert feedback.type not in ActionError, \
"AI state bug. Got error from game: {} {}".format(feedback.type, feedback.params)
def act(self, game_actions, alert_coord):
self.actions = game_actions
if self.creature in self.ai_state:
chase_coord, chase_vector = self.ai_state[self.creature]
else:
chase_coord, chase_vector = None, None
if self.actions.target_in_sight(alert_coord):
# passive actions
if chase_coord is not None and chase_coord != alert_coord:
chase_vector = get_vector(chase_coord, alert_coord)
chase_coord = alert_coord
# actions
if self.actions.can_reach(alert_coord):
feedback = self.actions.attack(get_vector(self.coord, alert_coord))
else:
feedback = self._move_towards(alert_coord)
else:
# chasing and already at the target square and has a chase vector to pursue
if chase_coord == self.coord:
if chase_vector is not None:
# resize the chase vector to the creatures sight so the self.creature can just go there
chase_vector = resize_vector_to_len(chase_vector, self.creature.sight)
# calculate a new target square
overarching_target = add_vector(self.coord, chase_vector)
chase_coord = self.level.get_last_pathable_coord(self.coord, overarching_target)
# if an obstacle is hit end chase
if self.coord == chase_coord:
chase_coord, chase_vector = None, None
else:
chase_coord = None
# actions
if chase_coord is not None:
feedback = self._move_towards(chase_coord)
else:
feedback = self._move_random()
if chase_coord is not None or chase_vector is not None:
self.ai_state[self.creature] = chase_coord, chase_vector
else:
self.remove_creature_state(self.creature)
assert feedback.type not in ActionError, \
"AI state bug. Got error from game: {} {}".format(feedback.type, feedback.params)
def _calculate_next_direction(self, old_direction, walk_type):
if walk_type == WALK_IN_PLACE:
return old_direction
elif walk_type == CORRIDOR:
forward_dirs, orthogonal_dirs, ignored_dirs = self._get_corridor_candidate_dirs(old_direction)
if len(forward_dirs) == 1:
new_direction = forward_dirs.pop()
return new_direction
elif len(forward_dirs) > 1 and len(orthogonal_dirs) == 1:
new_direction = orthogonal_dirs.pop()
if all(get_vector(new_direction, other) in Dir.AllPlusStay for other in forward_dirs):
return new_direction
else:
forward = self._passable(old_direction)
sides = self._get_side_passables(old_direction)
if forward and sides == walk_type:
return old_direction
return None
def _calculate_next_direction(self, old_direction, walk_type):
if walk_type == WALK_IN_PLACE:
return old_direction
elif walk_type == CORRIDOR:
forward_dirs, orthogonal_dirs, ignored_dirs = self._get_corridor_candidate_dirs(
old_direction)
if len(forward_dirs) == 1:
new_direction = forward_dirs.pop()
return new_direction
elif len(forward_dirs) > 1 and len(orthogonal_dirs) == 1:
new_direction = orthogonal_dirs.pop()
if all(
get_vector(new_direction, other) in Dir.AllPlusStay
for other in forward_dirs):
return new_direction
else:
forward = self._passable(old_direction)
sides = self._get_side_passables(old_direction)
if forward and sides == walk_type:
return old_direction
return None
def can_reach(self, target_coord):
"""Free action."""
return (self.coord == target_coord or get_vector(self.coord, target_coord) in Dir.All)
