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当我运行我的代码并进入游戏的战斗部分时，我会随机获得分配给我的角色攻击、防御、伤害和健康的值。然而，在他们的第一轮之后，他们一直得到相同的值并且他们不能重置。

例如，用户的攻击是从 4 到 11 的随机数。程序“滚动”5 并将其分配给变量 userAtk

userAtk = random.randint(4,11)

我假设每次循环运行时，它都会生成一个新值。但它不是，每次我打印变量时，它的值都与第一次分配的值相同。我错过了什么吗？

下面是我的代码

import random

# VARIABLES
#
#
# This variable is the user's character name
userName = input("Brave warrior, what is your name? ")

# This variable is used in the input function to pause the game
enterNext = ("Press enter to continue...")

# This variable is used to format the user input prompt
# as well as the battle text
prompt = ">>>>>  "

# This variable is used to add a new line to a string
newLine = "\n"

# This variable is used to display a message when the hero dies
heroDeadmsg = userName + " has fallen!"

# These variables represent the dragon's stats (HP, ATK & DEF)
dragonHp = 100
dragonAtk = random.randint(5,10)
dragonDef = random.randrange(8)

# These variables represent the user's stats (HP, ATK & DEF)
userHp = 90
userAtk = random.randint(4,11)
userDef = random.randrange(8)

# These variables calculate battle damage and HP
dragonDmg = (userAtk - dragonDef)
dragonHp -= dragonDmg
userDmg = (dragonAtk - userDef)
userHp -= userDmg

# This variable prints the options in the battle menu
battleMenu = """Attack (a) - Magic (m) - Item (i) - Run (r)""" 

# This variable determines who goes first
cointoss = random.randint(0, 1)

# These variables print the actions in each turn
dragonAttack = \
    prompt + "Crimson Dragon attacks you with " + str(dragonAtk) + " ATK!"\
    + newLine + prompt + "You defend with " + str(userDef) + " DEF!"\
    + newLine + prompt

userAttack = \
    prompt + "You attacked with " + str(userAtk) + " ATK!"\
    + newLine + prompt + "Crimson Dragon defends with " + str(dragonDef) + " DEF!"\
    + newLine + prompt

userMagic = \
    prompt + userName + " tried to use Magic!"\
    + newLine + prompt + userName + " has no magic!"\
    + newLine + prompt

userItem = \
    prompt + userName + " tried use an Item!"\
    + newLine + prompt + userName + " has no Items!"\
    + newLine + prompt

userRetreat = \
    prompt + userName + " tries to retreat!"\
    + newLine + prompt + "The enemy won't let you escape!"\
    + newLine + prompt


# These variables show health during battle 
printDragonhp = "Crismon Dragon has " + str(dragonHp) + " HP remaining!"
printUserhp = userName + " has " + str(userHp) + " HP remaining!"

# This variable simulates the results of a coin toss
coinToss = random.randint(0, 1)


#
#
# CONDTITIONS
#
#
# These conditions determines who attacks first
if coinToss == 0:
    currentTurn = "dragon"
elif coinToss == 1:
    currentTurn = "user"
else:
    print("The Coin Toss Failed!")    

#
#
# BATTLE MECHANICS
#
#

while currentTurn:
# Mechanics for the Crimson Dragon's Turn
if currentTurn == "dragon":

    # Prints the Crimson Dragon's Attack and ends the turn
    print(newLine + prompt + "Crimson Dragon moves!"\
          + newLine + prompt + newLine + dragonAttack\
          + newLine + prompt + userName + " takes " + str(userDmg) + " DMG!"\
          + newLine + prompt + printUserhp)
    currentTurn = "user"
    input(prompt)

    # Need to implent a way to reset ATK and DEF

# Mechanics for the User's Turn    
if currentTurn == "user":

    # Prints the Battle Menu and asks for the User's choice
    print(newLine + prompt + battleMenu\
          + newLine + prompt)
    userChoice = input(prompt)

    # Prints the User's Attack and ends the turn
    if userChoice == "a":
        print(userAttack)
        if userHp < 1:
            print(heroDeadmsg)
            break

        input (prompt)
        currentTurn = "dragon"
    # Prints the User's Magic and ends the turn
    elif userChoice == "m":
        print(userMagic)
        input (prompt)
        currentTurn = "dragon"
    # Prints the User's Item and ends the turn   
    elif userChoice == "i":
        print(userItem)
        input (prompt)
        currentTurn = "dragon"
    # Prints the User's Retreat and ends the turn    
    elif userChoice == "r":
        print(userRetreat)
        input (prompt)
        currentTurn = "dragon"
    # Prints an error message for invalid entries
    else:
        print(newLine + prompt + "That is not a valid menu item."\
              + newLine + prompt + "Please try again.")
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3 回答 3

3

random.randint(4,11)只需在范围内选择一个整数[4, 11]并返回该数字。所以，当你这样做时userAtk = random.randint(4,11)，你只是得到一个号码并将其存储为userAtk，每次你访问userAtk你都会得到相同的号码。

如果您希望userAtk成为一种神奇的东西，[4, 11]每次访问它时都会在范围内表现出不同的数字......好吧，这并非不可能（见这里快速而肮脏的刺伤它）......但它几乎肯定会导致混乱多于利益。

例如，您的代码试图打印出来str(userAtk)……但是如果每次访问它时值都不同，那么打印出来的内容将与用于计算损坏的内容不同！想象一下，如果你在玩桌面 D&D，地牢大师掷骰子告诉你掷骰结果，然后立即忘记结果并再次掷骰子以确定你是否命中。所以他可能会说，“你掷出 20。你错过了。” 那不好。

可能有用的是使userAtk实际上成为一个函数：

def userAtk():
    return random.randint(4, 11)

同样对于所有类似的变量。然后，在您只是访问一个数字的任何地方，您都将调用该函数：

def dragonDmg():
    return userAtk() - dragonDef()

然后在某个地方，您将希望将调用这些函数的结果存储在每个循环内的一些局部变量中。

但关键是，无论你怎么做，你都必须有变量，每次循环都要重新计算。

于 2013-08-20T01:59:16.003 回答
2

据我所知，因为userAtk不在循环内。如果您希望它在循环内重置，请在循环内调用random.randint(4,11)。

于 2013-08-19T23:47:30.057 回答
0

我相信即使你调用 randint() 一百万次，你仍然会得到重复（我相信你知道这一点）。我曾经使用字典来跟踪使用/未使用的随机数，如果它已经被使用过，只需检查字典。可能误解了这个问题。

于 2013-08-20T00:31:52.837 回答