Question

调用killed()函数后，屏幕变为白色并且什么都不做。我认为，由于mainloop()调用，代码会再次执行所有操作，但它似乎并非如此。任何想法，我可以做些什么来解决这个问题将非常感激。（我对图像没有任何问题。）代码：

from turtle import *
import os 
import time

wn = Screen()
wn.bgcolor('black')

hp = 200
gold = 0
def m1():
    os.chdir('C:/Users/Python/Projects/Images')
    wn.register_shape("aaa3.gif")
    wn.register_shape("chest.gif")

    stoneGolem = Turtle()
    stoneGolem.shape("aaa3.gif")
    namewriter = Turtle()
    namewriter.hideturtle()
    namewriter.penup()
    namewriter.color('white')
    namewriter.goto(-130, -250)
    fontname = ('Arial', 30, 'normal')
    namewriter.write("Stone Golem", font=fontname)

    writerhp = Turtle()
    writerhp.hideturtle()
    writerhp.penup()
    writerhp.goto(-300, 250)
    writerhp.color('white')
    fonthp = ('Arial', 12, 'normal')
    writerhp.write("Hp: " + str(hp), font=fonthp)

    writergold = Turtle()
    writergold.hideturtle()
    writergold.penup()
    writergold.goto(-200, 250)
    writergold.color('white')
    fontgold = ('Arial', 12, 'normal')
    writergold.write("Gold: " + str(gold), font=fontgold)


    def killed():
        global gold
        gold = gold + 50
        wn.clear()
        wn.bgcolor('black')
        chest = Turtle()
        chest.shape("chest.gif")
        writer0 = Turtle()
        writer0.hideturtle()
        writer0.penup()
        writer0.goto(-280, 180)
        writer0.color('white')
        font = ('Arial', 30, 'normal')
        writer0.write('Stone Golem slayed! Gold + 50!', font=font)
        time.sleep(3)
        wn.clear()



    def clickhp():
        global hp
        if hp > 1:
            hp = hp - 1
            writerhp.clear()
            fonthp = ('Arial', 12, 'normal')
            writerhp.write("Hp: " + str(hp), font=fonthp)
        else:
            killed()
            hp = 200

    wn.onkey(clickhp, 'Up')
    wn.listen()


m1()
wn.mainloop()

Answer 1

问题是您致电wn.clear()中的killed()。乌龟文档在这一点上令人困惑，但在屏幕单例上调用.clear()的定义是：

从TurtleScreen中删除所有图纸和所有海龟。重置现在空TurtleScreen到它的初始状态：白色背景，没有背景图片，没有事件绑定和跟踪。

这就是为什么你的屏幕“只是变成白色而什么都不做”的原因。寻找一种更合适的方法来清理你的游戏。

我对您的代码提取进行了返工，试图让它更像您的预期工作：

from turtle import Turtle, Screen
# import os
import time

FONT_NAME = ('Arial', 30, 'normal')
FONT_HP = ('Arial', 12, 'normal')
FONT_GOLD = ('Arial', 12, 'normal')

def killed():
    global gold

    gold += 50

    writergold.undo()
    writergold.write('Gold: ' + str(gold), font=FONT_GOLD)

    # chest = Turtle('chest.gif')

    writer0.write('Stone Golem slayed! Gold + 50!', font=FONT_NAME)

    time.sleep(3)

    writer0.undo()

def clickhp():
    global hp

    if hp > 1:
        hp -= 1
    else:
        killed()
        hp = 200

    writerhp.undo()
    writerhp.write('Hp: ' + str(hp), font=FONT_HP)

wn = Screen()
wn.bgcolor('black')

hp = 200
gold = 0

# os.chdir('C:/Users/Python/Projects/Images')
# wn.register_shape('aaa3.gif')
# wn.register_shape('chest.gif')

# stoneGolem = Turtle('aaa3.gif')

namewriter = Turtle(visible=False)
namewriter.penup()
namewriter.color('white')
namewriter.goto(-130, -250)
namewriter.write('Stone Golem', font=FONT_NAME)

writerhp = Turtle(visible=False)
writerhp.penup()
writerhp.color('white')
writerhp.goto(-300, 250)
writerhp.write('Hp: ' + str(hp), font=FONT_HP)

writergold = Turtle(visible=False)
writergold.penup()
writergold.color('white')
writergold.goto(-200, 250)
writergold.write('Gold: ' + str(gold), font=FONT_GOLD)

writer0 = Turtle(visible=False)
writer0.penup()
writer0.color('white')
writer0.goto(-280, 180)

wn.onkey(clickhp, 'Up')
wn.listen()
wn.mainloop()

麻烦的Python 3龟主循环

1 个答案: