如何使包含变量的数据结构在重新定义变量时更新?

Question

我正在制作一款文字冒险游戏。我使用命名元组来定义位置。

Location = namedtuple('Location', ['desc', 'ldesc', 'func', 'dirloc'])
entrance = foyer = None 
entrance = Location('Dungeon Entrance', (
'You are in a small clearing in a forest. '          
'To the north, a large iron-studded door is visible, '          
'embedded in a small hill that rises up in the middle of the clearing. '
'The sun shines down upon you and birds sing.'), None,
{'north':foyer, 'south':None, 'east':None, 'west':None, 'up':None, 'down':None}) 
foyer = Location('Foyer', ('You are in a medium-sized room made of stone. '
'Alcoves are carved along the wall at all angles. '
'One passage leads west. Another leads north. '
'Footsteps on the ground lead towards the west passage.'),
None,
{'north':None, 'south':entrance, 'east':None, 'west':None, 'up':None, 'down':None})

我需要入口位置的字典dictloc中的门厅变量在定义真正的门厅位置时自动更新。我该怎么做呢?我在网上搜遍了所有的文章，但是没有找到任何相关的。

我一遍又一遍地尝试使用不同的数据结构，看看我是否能找到一个工作。不幸的是，没有人这样做。

Answer 1

试试这个布局

dungeon = {
"entrance": {
"desc": "Dungeon Entrance",
"ldesc": (
"You are in a small clearing in a forest. "
"To the north, a large iron-studded door is visible, "
"embedded in a small hill that rises up in the middle of the clearing. "
"The sun shines down upon you and birds sing."
),
"func": None,
"dirloc": {
"north": "foyer",
"south": None,
"east": None,
"west": None,
"up": None,
"down": None,
},
},
"foyer": {
"desc": "Foyer",
"ldesc": (
"You are in a medium-sized room made of stone. "
"Alcoves are carved along the wall at all angles. "
"One passage leads west. Another leads north. "
"Footsteps on the ground lead towards the west passage."
),
"func": None,
"dirloc": {
"north": None,
"south": "entrance",
"east": None,
"west": None,
"up": None,
"down": None,
},
},
}

location_key = "entrance"
while location_key:
location = dungeon[location_key]
print(location["desc"])
print("="*len(location["desc"]))
print(location["ldesc"])
direction = input("nWhich direction?")
if direction in location["dirloc"]:
if location["dirloc"][direction] is None:
print("You cannot go "+direction)
else:
location_key = location["dirloc"][direction]
print("nGoing "+direction)
else:
raise ValueError("Unexpected direction: " + direction)