old_contents: # Runtime for managing the interactive component of the game. Allows user to play the game
  # through a text based interface.
  
  from game import DiscState
  
  class TextualRuntime:
  
    def __init__(self, game):
      self.game = game
      self.state = {
        "continue": True
      }
  
    def start(self):
      while self.state["continue"]:
        self.render()
        self.eval(self.get_input())
  
    def render(self):
      str_repr = ["Current board state:\n"]
      str_repr += [" %i " % col_index for col_index in range(self.game.grid.width)]
      for row in self.game.grid:
        row_repr = []
        for disc_value in row:
          if disc_value is DiscState.empty:
            row_repr.append("| |")
          elif disc_value is DiscState.red:
            row_repr.append("|O|")
          else:  # disc_value is black
            row_repr.append("|X|")
        row_repr.append("\n")
        str_repr += row_repr
      print("".join(str_repr))
  
    def get_input(self):
      return input("--> ")
  
    def eval(self, command):
      tokens = command.split()
      if len(tokens) == 1:
        if tokens[0] == "quit":
          self.state["continue"] = False
  
  
new_contents: # Runtime for managing the interactive component of the game. Allows user to play the game
  # through a text based interface.
  
  from game import DiscState
  
  class TextualRuntime:
  
    def __init__(self, game):
      self.game = game
      self.state = {
        "continue": True
      }
  
    def start(self):
      while self.state["continue"]:
        self.render()
        self.eval(self.get_input())
  
    def render(self):
      str_repr = ["Current board state:\n"]
      str_repr += [" %i " % col_index for col_index in range(self.game.grid.width)] + ["\n"]
      for row in self.game.grid:
        row_repr = []
        for disc_value in row:
          if disc_value is DiscState.empty:
            row_repr.append("| |")
          elif disc_value is DiscState.red:
            row_repr.append("|O|")
          else:  # disc_value is black
            row_repr.append("|X|")
        row_repr.append("\n")
        str_repr += row_repr
      print("".join(str_repr))
  
    def get_input(self):
      return input("--> ")
  
    def eval(self, command):
      tokens = command.split()
      if len(tokens) == 1:
        if tokens[0] == "quit":
          self.state["continue"] = False
        elif tokens[0].isdigit():
          col_index = int(tokens[0])
          new_point = self.game.try_turn(self.game.current_player, col_index)
  
  
subject: Add ability to drop discs on slots