Remove BoundDestination Object

New Variable 'var_can_be_bound'
Observations adjusted accordingly

marl_factory_grid/environment/entity/entity.py

@@ -56,6 +56,7 @@ class Entity(EnvObject, abc.ABC):
         return last_x - curr_x, last_y - curr_y
 
     def destroy(self):
+        if
         valid = self._collection.remove_item(self)
         for observer in self.observers:
             observer.notify_del_entity(self)
@@ -73,10 +74,17 @@ class Entity(EnvObject, abc.ABC):
             return valid
         return not_same_tile
 
-    def __init__(self, tile, **kwargs):
+    def __init__(self, tile, bind_to=None, **kwargs):
         super().__init__(**kwargs)
         self._status = None
         self._tile = tile
+        if bind_to:
+            try:
+                self.bind_to(bind_to)
+            except AttributeError:
+                print(f'Objects of {self.__class__.__name__} can not be bound to other entities.')
+                exit()
+
         assert tile.enter(self, spawn=True), "Positions was not valid!"
 
     def summarize_state(self) -> dict:

marl_factory_grid/environment/entity/mixin.py

@@ -9,10 +9,16 @@ class BoundEntityMixin:
 
     @property
     def name(self):
-        return f'{self.__class__.__name__}({self.bound_entity.name})'
+        if self.bound_entity:
+            return f'{self.__class__.__name__}({self.bound_entity.name})'
+        else:
+            print()
 
     def belongs_to_entity(self, entity):
         return entity == self.bound_entity
 
     def bind_to(self, entity):
         self._bound_entity = entity
+
+    def unbind(self):
+        self._bound_entity = None

marl_factory_grid/environment/entity/object.py

@@ -91,6 +91,13 @@ class EnvObject(Object):
         except AttributeError:
             return False
 
+    @property
+    def var_can_be_bound(self):
+        try:
+            return self._collection.var_can_be_bound or False
+        except AttributeError:
+            return False
+
     @property
     def var_can_move(self):
         try: