Question

当我运行我的代码并进入游戏的战斗部分时，我会获得分配给我的角色攻击，防御，伤害和健康的随机值。然而，在他们第一次转弯之后，他们不断获得相同的值，他们无法重置。

例如，用户的攻击是一个从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，它首先被赋予相同的值。我错过了什么吗？

以下是我的代码

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.")

Answer 1

因为userAtk不在循环中，所以我可以看到。如果您希望在循环内重置它，请在循环内调用random.randint(4,11)。

Answer 2

random.randint(4,11)只选择范围[4, 11]中的整数并返回该数字。因此，当您执行userAtk = random.randint(4,11)时，您只需获取一个号码并将其存储为userAtk，并且每次访问userAtk时，您都会获得相同的号码。

如果你希望userAtk成为一种神奇的东西，每次你访问它时，[4, 11]范围内的数字就像一个不同的数字......好吧，这并非不可能（见{{3对它进行快速而肮脏的刺伤）......但它几乎肯定会导致更多的混乱而不是利益。

例如，您有代码试图打印str(userAtk) ...但如果每次访问时值不同，打印出的内容将与用于计算损坏的内容不同！想象一下，如果你正在玩桌面D＆amp; D，地牢大师掷出一个骰子告诉你你的滚动，然后立即忘记结果并再次滚动以确定你是否击中。所以他可能会说，“你滚了20分。你错过了。”这不好。

可能有用的是让userAtk实际上成为一个函数：

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

同样适用于所有类似的变量。然后，在您访问某个数字的任何地方，您都会调用该函数：

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

然后在某个地方，您将要在每个循环中存储调用这些函数的结果。

但关键在于，无论如何，你必须拥有每次循环时重新计算的变量。

Answer 3

我相信即使你打了几百万次randint（），你仍会得到重复（我相信你知道这一点）。我曾经使用字典来跟踪已使用/未使用的随机数，只需检查字典是否已被使用。可能误解了这个问题。

如何重置循环中变量的值？（Python 3.1.1）

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如何重置循环中变量的值？ （Python 3.1.1）

3 个答案:

如何重置循环中变量的值？（Python 3.1.1）