Extract language-independent 'Simulator' class from woods example

util/prompt.py

@@ -16,24 +16,3 @@ def pause():
    print("press any key...")
    input()
 
-def choose(msg:str, options):
-   arr = []
-   for i, (key, result) in enumerate(options):
-      print(f"  {i}. {key}")
-      arr.append(result)
-   if len(arr) == 0:
-      return
-   return __choose(msg, arr)
-
-def __choose(msg: str, arr):
-   sys.stdout.write(f"{msg} ")
-   try:
-      raw = input()
-      choice = int(raw) # may raise ValueError
-      if choice >= 0 and choice < len(arr):
-         return arr[choice]
-   except ValueError:
-      pass
-
-   print("Invalid option")
-   return __choose(msg, arr)