Python 2.7 尝试用Python创建一个基本的基于文本的游戏。如何实现if循环；“长矛”；不筑巢

我试图实现一个循环，循环选择是否拥有长矛。 英雄应该用长矛杀死熊。没有长矛，他应该被吃掉

最初，我将长矛设置为False，然后在英雄拿起长矛时将其更改为TRUE。但是，当循环回bear_room（）时，spear的值重置为FALSE

有没有办法绕过这个问题而不必嵌套2个if函数？ 如果没有，第二个if循环是否有更干净的实现

我尝试使用if“true”和“true”以及“if true和false”来判断长矛是否由英雄持有。现在这不起作用。但是，代码仍按原样运行

代码如下：

    from sys import exit

    def dead(why):
        print why, "good Job!"
        exit(0)
    def bear_room():
        print """In front of you is a big bear. It stares at you. You notice a door behind the bear. To the side of the bear you see a spear propped up against the wall. What do you do?"""
        print"1. Fight the bear"
        print"2. Pick up the spear"
        print"3. try to run away"    
        bear = raw_input(">")
        spear = False
        if (bear == "1" and spear == True) :
            print "You fight and kill the bear"

        elif (bear == "1" and spear == False):
            dead("the bear claws your face off")

        elif (bear == "2" and spear == True):
            print "You already have the spear"
            bear_room()

        elif (bear == "2" and spear == False):
            print "you picked up the spear"
            spear = True
            print "Now do you want to fight the bear?"
            print "1. Fight the bear with the spear"
            print "2. Try to run away from the bear"
            choice = raw_input(">")
            if choice == "1":
                print """You fought and killed the bear, you can now
                go through the door"""
            elif choice == "2":
               dead("The bear eats you from behind")
            else:
                """You drop the spear, and retreat back to the entrance of  the room. """
                bear_room()

        elif (bear == "3"):
        dead("The Bear catches you and rips your head off")

        else:
            print "Please choose what to do!"
            bear_room()

    bear_room()

---

使用参数声明

bear_room

：

def bear_room(spear = False):

取出首字母

spear=False

，无论何时递归调用

bear_room

确保传入

bear_room（spear）

，以反映spear是否已更改

---

请注意，如果只调用

bear\u room（）

而不传入任何参数，

spear

将重置为False

将函数

bear\u room（）

的签名更改为

bear\u room（spear\u status=False）

使用spear\u状态初始化spear变量

---

无论你在哪里

调用bear_room（）

都可以称之为

bear_room（spear）

你也可以使用对象。这里有一个例子

from sys import exit

class Person:
        def __init__(self, name):
                self.name = name
                self.items = []


        def die(self,why):
                print why, "good Job", self.name
                exit(0)

def bear_room(person):
        print """In front of you is a big bear. It stares at you. You notice a door behind the bear. To the side of the bear you see a spear propped up against the wall. What do you do?"""
        print"1. Fight the bear"

        has_spear = "Spear" in person.items
        if not has_spear: print"2. Pick up the spear"
        print  "3. try to run away"
        bear = raw_input(">")

        if (bear == "1" and has_spear) :
                print "You fight and kill the bear"
                return True

        elif (bear == "1" and not has_spear):
                person.die("the bear claws your face off")

        elif (bear == "2" and not has_spear):
                print "you picked up the spear"
                person.items.append("Spear")
                return False

        elif (bear == "3" and has_spear):
                person.die("The Bear catches you and rips your head off")

        elif (bear == "3" and not has_spear):
                person.die("The Bear eats you from behind")
        elif has_spear:
                print "You drop the spear retreat back to the entrance of  the room. "
                return True
        else:
            print "Please choose what to do!"
            return False


warrior = Person("Soldat")
while True:
    if bear_room(warrior): break