Comments, small bugfixes removed legacy elements

marl_factory_grid/environment/entity/util.py

@@ -11,15 +11,33 @@ from marl_factory_grid.environment.entity.object import Object
 class PlaceHolder(Object):
 
     def __init__(self, *args, fill_value=0, **kwargs):
+        """
+        TODO
+
+
+        :return:
+        """
         super().__init__(*args, **kwargs)
         self._fill_value = fill_value
 
     @property
-    def can_collide(self):
+    def var_can_collide(self):
+        """
+        TODO
+
+
+        :return:
+        """
         return False
 
     @property
     def encoding(self):
+        """
+        TODO
+
+
+        :return:
+        """
         return self._fill_value
 
     @property
@@ -29,14 +47,30 @@ class PlaceHolder(Object):
 
 class GlobalPosition(Object):
 
+    @property
+    def obs_tag(self):
+        return self.name
+
     @property
     def encoding(self):
+        """
+        TODO
+
+
+        :return:
+        """
         if self._normalized:
             return tuple(np.divide(self._bound_entity.pos, self._shape))
         else:
             return self.bound_entity.pos
 
     def __init__(self, agent, level_shape, *args, normalized: bool = True, **kwargs):
+        """
+        TODO
+
+
+        :return:
+        """
         super(GlobalPosition, self).__init__(*args, **kwargs)
         self.bind_to(agent)
         self._normalized = normalized