WmHHooper
diff --git a/‎agents.py‎
Lines changed: 13 additions & 4 deletions b/‎agents.py‎
Lines changed: 13 additions & 4 deletions
diff --git a/‎envgui.py‎
Lines changed: 2 additions & 3 deletions b/‎envgui.py‎
Lines changed: 2 additions & 3 deletions
@@ -250,11 +250,20 @@ def is_thing_at(self, location, tclass=Thing):
                 return True
         return False
 
-    def old_list_things_at(self, location, tclass=Thing):
+    # def old_list_things_at(self, location, tclass=Thing):
+    #     "Return all things exactly at a given location."
+    #     return [thing for thing in self.things
+    #             if thing.location == location
+    #             and isinstance(thing, tclass)]
+
+    def get_things(self, tclass=Thing):
         "Return all things exactly at a given location."
-        return [thing for thing in self.things
-                if thing.location == location
-                and isinstance(thing, tclass)]
+        rlist = []
+        for thing in self.things:
+            if not isinstance(thing, tclass):
+                continue
+            rlist.append(thing)
+        return rlist
 
     def list_things_at(self, location, tclass=Thing):
         "Return all things exactly at a given location."
 
@@ -294,7 +294,7 @@ def help(self):
           print(line)
 
     def list_things(self, MyClass=object):
-        print(MyClass.__name__ + '(s) in the environment:')
+        print(MyClass.__name__ + 's in the environment:')
         for obj in self.env.things:
             if isinstance(obj, MyClass):
                 print("%s at %s" % (obj, obj.location))
@@ -307,8 +307,7 @@ def list_agents(self):
     def step(self, n=1):
         for s in range(n):
             self.env.step()
-        if n > 0:
-            print(str(n) + ' step(s) later:')
+        print(str(n) + ' step(s) later:')
         print(self.displayString())
 
     def mainloop(self):