bugfix int/float mixup

DecMCTS.py

@@ -31,7 +31,7 @@ class ActionDistribution:
 
         # Normalise 
         if sum(q)==0:
-            self.q = [1/len(q)] * len(q)
+            self.q = [1/float(len(q))] * len(q)
         else:
             self.q = (np.array(q).astype(float)/sum(q)).tolist()
 
@@ -170,9 +170,8 @@ class Tree:
             and second element is a dictionary of the other paths
         """
 
-        robot_state = self.graph.node[node_id]["state"]
         system_state = {k:self.comms[k].random_action() for k in self.comms}
-        system_state[self.id] = robot_state 
+        system_state[self.id] = self.graph.node[node_id]["state"]
 
         return system_state