2021-08-26 17:47:15 +02:00

390 lines
12 KiB
Python

import random
from abc import ABC
from enum import Enum
from typing import List, Union, Dict
import numpy as np
from environments.factory.base.objects import Entity, Tile, Agent, Door, Action, Wall
from environments.utility_classes import MovementProperties
from environments import helpers as h
from environments.helpers import Constants as c
class Register:
_accepted_objects = Entity
@property
def name(self):
return self.__class__.__name__
@property
def n(self):
return len(self)
def __init__(self, *args, **kwargs):
self._register = dict()
self._names = dict()
def __len__(self):
return len(self._register)
def __iter__(self):
return iter(self.values())
def register_item(self, other: _accepted_objects):
assert isinstance(other, self._accepted_objects), f'All item names have to be of type ' \
f'{self._accepted_objects}, ' \
f'but were {other.__class__}.,'
new_idx = len(self._register)
self._names.update({other.name: new_idx})
self._register.update({new_idx: other})
return self
def register_additional_items(self, others: List[_accepted_objects]):
for other in others:
self.register_item(other)
return self
def keys(self):
return self._register.keys()
def values(self):
return self._register.values()
def items(self):
return self._register.items()
def __getitem__(self, item):
try:
return self._register[item]
except KeyError as e:
print('NO')
print(e)
raise
def by_name(self, item):
return self[self._names[item]]
def by_enum(self, enum_obj: Enum):
return self[self._names[enum_obj.name]]
def __repr__(self):
return f'{self.__class__.__name__}({self._register})'
def get_name(self, item):
return self._register[item].name
def get_idx_by_name(self, item):
return self._names[item]
def get_idx(self, enum_obj: Enum):
return self._names[enum_obj.name]
class ObjectRegister(Register):
def __init__(self, level_shape: (int, int), *args, individual_slices=False, is_per_agent=False, **kwargs):
super(ObjectRegister, self).__init__(*args, **kwargs)
self.is_per_agent = is_per_agent
self.individual_slices = individual_slices
self._level_shape = level_shape
self._array = None
def register_item(self, other):
super(ObjectRegister, self).register_item(other)
if self._array is None:
self._array = np.zeros((1, *self._level_shape))
else:
if self.individual_slices:
self._array = np.concatenate((self._array, np.zeros(1, *self._level_shape)))
class EntityObjectRegister(ObjectRegister, ABC):
def as_array(self):
raise NotImplementedError
@classmethod
def from_tiles(cls, tiles, *args, **kwargs):
# objects_name = cls._accepted_objects.__name__
entities = [cls._accepted_objects(i, tile, name_is_identifier=True, **kwargs)
for i, tile in enumerate(tiles)]
register_obj = cls(*args)
register_obj.register_additional_items(entities)
return register_obj
@classmethod
def from_argwhere_coordinates(cls, positions: [(int, int)], tiles, *args, **kwargs):
return cls.from_tiles([tiles.by_pos(position) for position in positions], *args, **kwargs)
@property
def positions(self):
return list(self._tiles.keys())
@property
def tiles(self):
return [entity.tile for entity in self]
def __init__(self, *args, is_blocking_light=False, is_observable=True, can_be_shadowed=True, **kwargs):
super(EntityObjectRegister, self).__init__(*args, **kwargs)
self.can_be_shadowed = can_be_shadowed
self._tiles = dict()
self.is_blocking_light = is_blocking_light
self.is_observable = is_observable
def register_item(self, other):
super(EntityObjectRegister, self).register_item(other)
self._tiles[other.pos] = other
def register_additional_items(self, others):
for other in others:
self.register_item(other)
return self
def by_pos(self, pos):
if isinstance(pos, np.ndarray):
pos = tuple(pos)
try:
return self._tiles[pos]
except KeyError:
return None
class MovingEntityObjectRegister(EntityObjectRegister, ABC):
def __init__(self, *args, **kwargs):
super(MovingEntityObjectRegister, self).__init__(*args, **kwargs)
def by_pos(self, pos):
if isinstance(pos, np.ndarray):
pos = tuple(pos)
try:
return [x for x in self if x == pos][0]
except IndexError:
return None
def delete_item(self, item):
self
class Entities(Register):
_accepted_objects = EntityObjectRegister
@property
def arrays(self):
return {key: val.as_array() for key, val in self.items() if val.is_observable}
@property
def names(self):
return list(self._register.keys())
def __init__(self):
super(Entities, self).__init__()
def __iter__(self):
return iter([x for sublist in self.values() for x in sublist])
def register_item(self, other: dict):
assert not any([key for key in other.keys() if key in self._names]), \
"This group of entities has already been registered!"
self._register.update(other)
return self
def register_additional_items(self, others: Dict):
return self.register_item(others)
class WallTiles(EntityObjectRegister):
_accepted_objects = Wall
_light_blocking = True
def as_array(self):
if not np.any(self._array):
x, y = zip(*[x.pos for x in self])
self._array[0, x, y] = self.encoding
return self._array
def __init__(self, *args, **kwargs):
super(WallTiles, self).__init__(*args, individual_slices=False, is_blocking_light=self._light_blocking, **kwargs)
@property
def encoding(self):
return c.OCCUPIED_CELL.value
@property
def array(self):
return self._array
@classmethod
def from_argwhere_coordinates(cls, argwhere_coordinates, *args, **kwargs):
tiles = cls(*args, **kwargs)
# noinspection PyTypeChecker
tiles.register_additional_items(
[cls._accepted_objects(i, pos, name_is_identifier=True, is_blocking_light=cls._light_blocking)
for i, pos in enumerate(argwhere_coordinates)]
)
return tiles
@classmethod
def from_tiles(cls, tiles, *args, **kwargs):
raise RuntimeError()
class FloorTiles(WallTiles):
_accepted_objects = Tile
_light_blocking = False
def __init__(self, *args, **kwargs):
super(self.__class__, self).__init__(*args, is_observable=False, **kwargs)
@property
def encoding(self):
return c.FREE_CELL.value
@property
def occupied_tiles(self):
tiles = [tile for tile in self if tile.is_occupied()]
random.shuffle(tiles)
return tiles
@property
def empty_tiles(self) -> List[Tile]:
tiles = [tile for tile in self if tile.is_empty()]
random.shuffle(tiles)
return tiles
@classmethod
def from_tiles(cls, tiles, *args, **kwargs):
raise RuntimeError()
class Agents(MovingEntityObjectRegister):
def as_array(self):
self._array[:] = c.FREE_CELL.value
# noinspection PyTupleAssignmentBalance
z, x, y = range(len(self)), *zip(*[x.pos for x in self])
self._array[z, x, y] = c.OCCUPIED_CELL.value
if self.individual_slices:
return self._array
else:
return self._array.sum(axis=0, keepdims=True)
_accepted_objects = Agent
@property
def positions(self):
return [agent.pos for agent in self]
class Doors(EntityObjectRegister):
def __init__(self, *args, **kwargs):
super(Doors, self).__init__(*args, is_blocking_light=True, **kwargs)
def as_array(self):
self._array[:] = 0
for door in self:
self._array[0, door.x, door.y] = door.encoding
return self._array
_accepted_objects = Door
def get_near_position(self, position: (int, int)) -> Union[None, Door]:
if found_doors := [door for door in self if position in door.access_area]:
return found_doors[0]
else:
return None
def tick_doors(self):
for door in self:
door.tick()
class Actions(Register):
_accepted_objects = Action
@property
def movement_actions(self):
return self._movement_actions
# noinspection PyTypeChecker
def __init__(self, movement_properties: MovementProperties, can_use_doors=False):
self.allow_no_op = movement_properties.allow_no_op
self.allow_diagonal_movement = movement_properties.allow_diagonal_movement
self.allow_square_movement = movement_properties.allow_square_movement
self.can_use_doors = can_use_doors
super(Actions, self).__init__()
if self.allow_square_movement:
self.register_additional_items([self._accepted_objects(direction) for direction in h.ManhattanMoves])
if self.allow_diagonal_movement:
self.register_additional_items([self._accepted_objects(direction) for direction in h.DiagonalMoves])
self._movement_actions = self._register.copy()
if self.can_use_doors:
self.register_additional_items([self._accepted_objects(h.EnvActions.USE_DOOR)])
if self.allow_no_op:
self.register_additional_items([self._accepted_objects(h.EnvActions.NOOP)])
def is_moving_action(self, action: Union[int]):
return action in self.movement_actions.values()
def is_no_op(self, action: Union[str, Action, int]):
if isinstance(action, int):
action = self[action]
if isinstance(action, Action):
action = action.name
return action == h.EnvActions.NOOP.name
def is_door_usage(self, action: Union[str, int]):
if isinstance(action, int):
action = self[action]
if isinstance(action, Action):
action = action.name
return action == h.EnvActions.USE_DOOR.name
class Zones(Register):
@property
def danger_zone(self):
return self._zone_slices[self.by_enum(c.DANGER_ZONE)]
@property
def accounting_zones(self):
return [self[idx] for idx, name in self.items() if name != c.DANGER_ZONE.value]
def __init__(self, parsed_level):
raise NotImplementedError('This needs a Rework')
super(Zones, self).__init__()
slices = list()
self._accounting_zones = list()
self._danger_zones = list()
for symbol in np.unique(parsed_level):
if symbol == c.WALL.value:
continue
elif symbol == c.DANGER_ZONE.value:
self + symbol
slices.append(h.one_hot_level(parsed_level, symbol))
self._danger_zones.append(symbol)
else:
self + symbol
slices.append(h.one_hot_level(parsed_level, symbol))
self._accounting_zones.append(symbol)
self._zone_slices = np.stack(slices)
def __getitem__(self, item):
return self._zone_slices[item]
def get_name(self, item):
return self._register[item]
def by_name(self, item):
return self[super(Zones, self).by_name(item)]
def register_additional_items(self, other: Union[str, List[str]]):
raise AttributeError('You are not allowed to add additional Zones in runtime.')