removed positionmix entirely (now also in collection)

marl_factory_grid/environment/groups/mixins.py

@@ -1,55 +1,4 @@
-from typing import List, Tuple
-
 from marl_factory_grid.environment import constants as c
-from marl_factory_grid.environment.entity.entity import Entity
-
-
-class PositionMixin:
-    _entity = Entity
-    var_is_blocking_light: bool = True
-    var_can_collide: bool = True
-    var_has_position: bool = True
-
-    def spawn(self, coords: List[Tuple[(int, int)]]):
-        self.add_items([self._entity(pos) for pos in coords])
-
-    def render(self):
-        return [y for y in [x.render() for x in self] if y is not None]
-
-    @classmethod
-    def from_coordinates(cls, positions: [(int, int)], *args, entity_kwargs=None, **kwargs, ):
-        collection = cls(*args, **kwargs)
-        collection.add_items(
-            [cls._entity(tuple(pos), **entity_kwargs if entity_kwargs is not None else {}) for pos in positions])
-        return collection
-
-    def __delitem__(self, name):
-        idx, obj = next((i, obj) for i, obj in enumerate(self) if obj.name == name)
-        try:
-            for observer in obj.observers:
-                observer.notify_del_entity(obj)
-        except AttributeError:
-            pass
-        super().__delitem__(name)
-
-    def by_pos(self, pos: (int, int)):
-        pos = tuple(pos)
-        try:
-            return self.pos_dict[pos]
-        except StopIteration:
-            pass
-        except ValueError:
-            print()
-
-    @property
-    def positions(self):
-        return [e.pos for e in self]
-
-    def notify_del_entity(self, entity: Entity):
-        try:
-            self.pos_dict[entity.pos].remove(entity)
-        except (ValueError, AttributeError):
-            pass
 
 
 # noinspection PyUnresolvedReferences,PyTypeChecker