Question

我正在制作一个小型的Python控制台RPG。我有一个非常基本的战斗系统，但我player和enemy的健康值在他们受到伤害后会继续重置。关于为什么会发生这种情况的任何想法？我认为它可能与我的变量不是global或者没有被正确声明有关，但是我找不到错误（我不太了解全局变量在Python中是如何工作的）。我做了一些测试（你可以通过# Testing注释看到），而attack()函数确实消除了健康状况，但当它返回到fight()函数时，健康状况又恢复到100两个变量的百分比。

import sys
import os
import random

def clear(): return os.system('clear')

# Program
class Player:
    def __init__(self, name):
        self.name = name
        self.max_health = 100
        self.health = self.max_health
        self.attack = 5
        self.health_stat = "{}/{}".format(self.health, self.max_health)

class Goblin:
    def __init__(self, name):
        self.name = name
        self.max_health = 50
        self.health = self.max_health
        self.attack = 2
        self.health_stat = "{}/{}".format(self.health, self.max_health)
goblin = Goblin("Goblin")

# all other enemies are the same as the Goblin

enemies = [wolf, goblin, rat, bandit]

# New game
def start0():
    global player
    player = Player('Mark')
    start1()

def start1():
    clear()
    print("Name: {}\n"
          "Health: {}\n"
          "".format(player.name, player.health_stat,))

    print(".1) Fight\n"
          ".4) Exit\n")

    selection = input("-> ")
    if selection == "1":
        select_enemy_to_fight()
        fight()
    elif selection == "4":
        sys.exit()

def select_enemy_to_fight():
    global enemy
    enemy = random.choice(enemies)

# Actions
def attack():
    clear()
    playerAttack = random.randint(0, player.attack)
    enemyAttack = random.randint(0, enemy.attack)

#player attack
    if playerAttack == 0:
        print("You miss!")
    else:
        enemy.health -= playerAttack

        print("You dealt {} damage!".format(playerAttack))
# Testing
        print("PH = ", player.health)
        print("EH = ", enemy.health)
    input(" ")

    if enemy.health <= 0:
        win()

    clear()

# Enemy attack
    if enemyAttack == 0:
        print("The enemy missed!")
    else:
        player.health -= enemyAttack
        print("The enemy dealt {} damage!".format(enemyAttack))
# Testing
        print("PH = ", player.health)
        print("EH = ", enemy.health)
    input(" ")
    # clear()

    dead() if player.health <= 0 else fight()

def fight():
    global enemy
    global player
    clear()

    print("{}   vs   {}".format(player.name, enemy.name))
    print("{}'s Health: {}  {}'s Health: {}".format(player.name, player.health_stat, enemy.name, enemy.health_stat))

    print(".1) Attack\n"
          ".3) Run Away\n")

    selection = input("-> ")
    if selection == "1":
        attack()
    elif selection == "3":
        run()

main()

Answer 1

您可以尝试在attack函数中标记变量全局，就像您在fight中看到的一样吗？

Answer 2

刚发现问题：

class Player:
    def __init__(self, name):
        self.name = name
        self.max_health = 100
        self.health = self.max_health
        self.attack = 5
        self.health_stat = "{}/{}".format(self.health, self.max_health)

self.health_stat正在使用原始self.health，因此在self.health更改后self.health_stat保持不变。

我做了这个解决方案：

class Player:
    def __init__(self, name):
        self.name = name
        self.max_health = 100
        self.health = self.max_health
        self.attack = 5
    def health_stat(self):
        return "{}/{}".format(self.health, self.max_health)

为什么我的变量会重置它的值？

2 个答案: