我如何创建一个函数，该函数根据在Python中输入相同输入的次数，使用户输入具有不同的结果？

Question

I am creating a text based adventure game in Python. At certain points there may be rooms with many different actions you can perform, like opening a chest. I want to create a single function that allows this, because right now I have to write all this: (Just an example)

hello_said_once = True  

hello = ["hello", "hi"]
goodbye = ["goodbye", "bye", "cya"]

while True:

    user_input = raw_input("Hello... ")

    if any(i in user_input for i in hello) and hello_said_once:
        print "You said hello!"
    elif any(i in user_input for i in hello) and not hello_said_once:
        print "You already said Hello!"
    elif any(i in user_input for i in goodbye) and good_bye_said_once:
        print "You said Goodbye!"
        break

This gets tiresome after a while and I wouldn't know how to make a function for it, specifically because the amount of actions you could perform depends on the situation.

Answer 1

It might be worth using a class if you want to keep the function and usage count closely tied. A class can have persistent data so you could track the number of times the user called it by just increasing the number every time.

class chest():
    openCount = 0
    openFunctions = [
                        function1,
                        function2,
                        function3,
                        ...
                    ]

    def use(self):
        self.openFunctions[openCount]
        self.openCount += 1

You could use this to track other more dynamic data too, like a list of items received from chests.

Answer 2

You could probably make a class that holds a list of valid inputs and a bool for whether or not it's been triggered yet.

class Action:
    def __init__(self, user_inputs):
        self.user_inputs = user_inputs
        self.been_triggered = False

hello = Action(["hello", "hi"])
goodbye = Action(["goodbye", "bye", "cya"])

Also, your use of "any" is redundant. You can just say if user_input in hello and ...

class Action:
    def __init__(self, user_inputs):
        self.user_inputs = user_inputs
        self.been_triggered = False

hello = Action(["hello", "hi"])
goodbye = Action(["goodbye", "bye", "cya"])

while True:

    user_input = raw_input("Hello... ")

    if user_input in hello.user_inputs:
        if not hello.been_triggered:
            print "You said hello!"
        else:
            print "You already said Hello!"

    elif user_input in goodbye.user_inputs:
        print "You said Goodbye!"
        break