402 lines
10 KiB
Python
402 lines
10 KiB
Python
from collections import defaultdict
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from typing import Union
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import networkx as nx
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import numpy as np
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from environments import helpers as h
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from environments.helpers import Constants as c
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import itertools
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##########################################################################
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# ##################### Base Object Definition ######################### #
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##########################################################################
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class Object:
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"""Generell Objects for Organisation and Maintanance such as Actions etc..."""
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_u_idx = defaultdict(lambda: 0)
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def __bool__(self):
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return True
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@property
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def name(self):
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return self._name
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@property
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def identifier(self):
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if self._str_ident is not None:
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return self._str_ident
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else:
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return self._name
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def __init__(self, str_ident: Union[str, None] = None, **kwargs):
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self._str_ident = str_ident
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if self._str_ident is not None:
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self._name = f'{self.__class__.__name__}[{self._str_ident}]'
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elif self._str_ident is None:
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self._name = f'{self.__class__.__name__}#{Object._u_idx[self.__class__.__name__]}'
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Object._u_idx[self.__class__.__name__] += 1
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else:
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raise ValueError('Please use either of the idents.')
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if kwargs:
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print(f'Following kwargs were passed, but ignored: {kwargs}')
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def __repr__(self):
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return f'{self.name}'
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def __eq__(self, other) -> bool:
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return other == self.identifier
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class EnvObject(Object):
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"""Objects that hold Information that are observable, but have no position on the env grid. Inventories etc..."""
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_u_idx = defaultdict(lambda: 0)
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@property
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def can_collide(self):
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return False
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@property
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def encoding(self):
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return c.OCCUPIED_CELL
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def __init__(self, register, **kwargs):
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super(EnvObject, self).__init__(**kwargs)
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self._register = register
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def change_register(self, register):
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register.register_item(self)
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self._register.delete_env_object(self)
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self._register = register
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return self._register == register
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class BoundingMixin(Object):
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@property
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def bound_entity(self):
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return self._bound_entity
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def __init__(self, entity_to_be_bound, *args, **kwargs):
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super().__init__(*args, **kwargs)
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assert entity_to_be_bound is not None
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self._bound_entity = entity_to_be_bound
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@property
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def name(self):
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return f'{super(BoundingMixin, self).name}({self._bound_entity.name})'
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def belongs_to_entity(self, entity):
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return entity == self.bound_entity
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class Entity(EnvObject):
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"""Full Env Entity that lives on the env Grid. Doors, Items, Dirt etc..."""
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@property
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def can_collide(self):
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return False
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@property
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def x(self):
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return self.pos[0]
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@property
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def y(self):
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return self.pos[1]
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@property
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def pos(self):
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return self._tile.pos
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@property
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def tile(self):
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return self._tile
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def __init__(self, tile, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self._tile = tile
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tile.enter(self)
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def summarize_state(self, **_) -> dict:
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return dict(name=str(self.name), x=int(self.x), y=int(self.y),
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tile=str(self.tile.name), can_collide=bool(self.can_collide))
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def __repr__(self):
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return super(Entity, self).__repr__() + f'(@{self.pos})'
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class MoveableEntity(Entity):
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@property
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def last_tile(self):
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return self._last_tile
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@property
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def last_pos(self):
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if self._last_tile:
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return self._last_tile.pos
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else:
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return c.NO_POS
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@property
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def direction_of_view(self):
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last_x, last_y = self.last_pos
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curr_x, curr_y = self.pos
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return last_x-curr_x, last_y-curr_y
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self._last_tile = None
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def move(self, next_tile):
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curr_tile = self.tile
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if curr_tile != next_tile:
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next_tile.enter(self)
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curr_tile.leave(self)
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self._tile = next_tile
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self._last_tile = curr_tile
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self._register.notify_change_to_value(self)
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return c.VALID
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else:
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return c.NOT_VALID
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##########################################################################
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# ####################### Objects and Entitys ########################## #
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##########################################################################
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class Action(Object):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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class PlaceHolder(Object):
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def __init__(self, *args, fill_value=0, **kwargs):
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super().__init__(*args, **kwargs)
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self._fill_value = fill_value
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@property
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def can_collide(self):
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return False
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@property
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def encoding(self):
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return self._fill_value
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@property
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def name(self):
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return "PlaceHolder"
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class GlobalPosition(EnvObject, BoundingMixin):
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@property
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def encoding(self):
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if self._normalized:
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return tuple(np.diff(self._bound_entity.pos, self._level_shape))
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else:
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return self.bound_entity.pos
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def __init__(self, level_shape, *args, normalized: bool = True, **kwargs):
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super(GlobalPosition, self).__init__(self, *args, **kwargs)
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self._level_shape = level_shape
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self._normalized = normalized
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class Tile(EnvObject):
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@property
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def encoding(self):
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return c.FREE_CELL
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@property
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def guests_that_can_collide(self):
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return [x for x in self.guests if x.can_collide]
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@property
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def guests(self):
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return self._guests.values()
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@property
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def x(self):
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return self.pos[0]
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@property
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def y(self):
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return self.pos[1]
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@property
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def pos(self):
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return self._pos
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def __init__(self, pos, *args, **kwargs):
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super(Tile, self).__init__(*args, **kwargs)
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self._guests = dict()
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self._pos = tuple(pos)
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def __len__(self):
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return len(self._guests)
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def is_empty(self):
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return not len(self._guests)
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def is_occupied(self):
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return bool(len(self._guests))
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def enter(self, guest):
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if guest.name not in self._guests:
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self._guests.update({guest.name: guest})
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return True
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else:
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return False
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def leave(self, guest):
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try:
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del self._guests[guest.name]
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except (ValueError, KeyError):
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return False
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return True
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def __repr__(self):
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return f'{self.name}(@{self.pos})'
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def summarize_state(self, **_):
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return dict(name=self.name, x=int(self.x), y=int(self.y))
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class Wall(Tile):
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@property
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def can_collide(self):
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return True
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@property
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def encoding(self):
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return c.OCCUPIED_CELL
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pass
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class Door(Entity):
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@property
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def can_collide(self):
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if self.has_area:
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return False if self.is_open else True
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else:
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return False
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@property
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def encoding(self):
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# This is important as it shadow is checked by occupation value
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return c.OCCUPIED_CELL if self.is_closed else 2
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@property
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def str_state(self):
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return 'open' if self.is_open else 'closed'
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@property
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def access_area(self):
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return [node for node in self.connectivity.nodes
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if node not in range(len(self.connectivity_subgroups)) and node != self.pos]
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def __init__(self, *args, context, closed_on_init=True, auto_close_interval=10, has_area=False, **kwargs):
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super(Door, self).__init__(*args, **kwargs)
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self._state = c.CLOSED_DOOR
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self.has_area = has_area
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self.auto_close_interval = auto_close_interval
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self.time_to_close = -1
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neighbor_pos = list(itertools.product([-1, 1, 0], repeat=2))[:-1]
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neighbor_tiles = [context.by_pos(tuple([sum(x) for x in zip(self.pos, diff)])) for diff in neighbor_pos]
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neighbor_pos = [x.pos for x in neighbor_tiles if x]
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self.connectivity = h.points_to_graph(neighbor_pos)
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self.connectivity_subgroups = list(nx.algorithms.components.connected_components(self.connectivity))
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for idx, group in enumerate(self.connectivity_subgroups):
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for tile_pos in group:
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self.connectivity.add_edge(tile_pos, idx)
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if not closed_on_init:
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self._open()
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def summarize_state(self, **kwargs):
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state_dict = super().summarize_state(**kwargs)
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state_dict.update(state=str(self.str_state), time_to_close=int(self.time_to_close))
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return state_dict
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@property
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def is_closed(self):
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return self._state == c.CLOSED_DOOR
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@property
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def is_open(self):
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return self._state == c.OPEN_DOOR
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@property
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def status(self):
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return self._state
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def use(self):
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if self._state == c.OPEN_DOOR:
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self._close()
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else:
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self._open()
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def tick(self):
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if self.is_open and len(self.tile) == 1 and self.time_to_close:
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self.time_to_close -= 1
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elif self.is_open and not self.time_to_close and len(self.tile) == 1:
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self.use()
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def _open(self):
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self.connectivity.add_edges_from([(self.pos, x) for x in range(len(self.connectivity_subgroups))])
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self._state = c.OPEN_DOOR
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self._register.notify_change_to_value(self)
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self.time_to_close = self.auto_close_interval
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def _close(self):
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self.connectivity.remove_node(self.pos)
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self._state = c.CLOSED_DOOR
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self._register.notify_change_to_value(self)
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def is_linked(self, old_pos, new_pos):
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try:
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_ = nx.shortest_path(self.connectivity, old_pos, new_pos)
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return True
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except nx.exception.NetworkXNoPath:
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return False
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class Agent(MoveableEntity):
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@property
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def can_collide(self):
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return True
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def __init__(self, *args, **kwargs):
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super(Agent, self).__init__(*args, **kwargs)
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self.clear_temp_state()
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# noinspection PyAttributeOutsideInit
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def clear_temp_state(self):
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# for attr in cls.__dict__:
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# if attr.startswith('temp'):
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self.step_result = None
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def summarize_state(self, **kwargs):
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state_dict = super().summarize_state(**kwargs)
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state_dict.update(valid=bool(self.temp_action_result['valid']), action=str(self.temp_action_result['action']))
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return state_dict
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