The player can now have simple conversations with NPCs.

gamemap.py

@@ -190,6 +190,7 @@ class NPC(Thing):
         self.inventory = inventory
         self.customValues = customValues
         self.graphic = graphic
+        self.behaveEvent = None
         
     def give(self, item):
         self.inventory.append(item)
@@ -545,6 +546,7 @@ Entering a map through stdin will be obsolete once testing is over."""
         yaml = ruamel.yaml.YAML()
         yaml.register_class(Item)
         yaml.register_class(Useable)
+        yaml.register_class(NPC)
         yaml.register_class(Door)
         yaml.register_class(MapExit)
         if infile != None:
@@ -553,14 +555,9 @@ Entering a map through stdin will be obsolete once testing is over."""
                     info = yaml.load(f)
             except OSError as e:
                 print("The file could not be read.")
-                return None
+                return None, nextThing
         else:
-            
-            while tryToRead:
-                try:
-                    data += input()
-                except EOFError as e:
-                    tryToRead = False
+            raise RuntimeError("No file was specified for loading.")
         
         # Now what we do with the data
         mat = None