Coding Dojo

README.rst

WTF Game

Created at PyCon PL as a coding dojo challenge

game.py

class WTF(Exception):
    pass
class Player(object):
    def __init__(self, starting_room):
        starting_room.enter(self)

    def input(self, text):
        if ' ' in text:
            item_name, action = text.split(' ', 1)

            for i in self.location.items:
                if i.name == item_name:
                    item = i
                    break
            else:
                raise WTF()

        else:
            item = self.location
            action = text

        item.action(self, action)

    def act(self, item, action):
        item.action(self, action)

class Item(object):
    def __init__(self, name):
        self.name = name

    def __str__(self):
        return self.name

    def action(self, player, action):
        if hasattr(self, 'do_' + action):
            getattr(self, 'do_' + action)(player)
        else:
            raise WTF()

    def do_help(self, player):
        print('I am not helpring you!!')
        for x in dir(self):
            if x.startswith('do_'):
                print(x[3:])

class Room(Item):
    def __init__(self, name, description, items=None):
        super().__init__(name)
        self.description = description
        self.items = items or []

    def enter(self, player):
        player.location = self
        print("Welcome to %s\n\n%s" % (self.name, self.description) )

    def do_list(self, player):
        for item in self.items:
            print(item)

class Door(Item):
    def __init__(self, name, from_room, to_room):
        super().__init__(name)
        self.from_room, self.to_room = from_room, to_room
        self.from_room.items.append(self)
        self.to_room.items.append(self)

    def do_enter(self, player):
        if player.location is self.from_room:
            self.to_room.enter(player)
        else:
            self.from_room.enter(player)



def test_walk_through_a_door():
    r1, r2 = Room('hallway', 'Dark'), Room('living room', 'warm')
    d = Door('littledoor', r1, r2)
    player = Player(r1)

    d.action(player, "enter")

    assert player.location is r2

def test_player_can_act_on_items():
    r1 = Room('hallway', 'Dark')
    p = Player(r1)
    class Movable(Item):
        def do_move(self, player):
            self.moved_by = player

    i = Movable('stone')

    p.act(i, 'move')
    assert i.moved_by is p

def test_door_adds_iteself_to_both_rooms():
    r1, r2 = Room('hallway', 'Dark'), Room('living room', 'warm')
    d = Door('door', r1, r2)

    assert d in r1.items
    assert d in r2.items


def test_player_can_interpret_command():
    r1, r2 = Room('hallway', 'Dark'), Room('living room', 'warm')
    Door('littledoor', r1, r2)
    player = Player(r1)

    player.input('littledoor enter')

    assert player.location is r2

class Street(Room):
    def enter(self, player):
        super().enter(player)
        print('Welcome to the game, type `help` to get no help.')

street = Street('street', 'In warsaw')
hallway = Room('hallway', 'Dark and gloomy')
entrance = Door('entrance', street, hallway)

def main_loop():
    p = Player(street)
    while True:
        command = input('What to do? ')
        p.input(command)

if __name__ == '__main__':
    main_loop()