Python中使用Turtle图形错误的Snake游戏

时间:2019-02-08 09:35:12

标签: python turtle-graphics

因此,我一直在尝试遵循本指南,了解如何使用Python的Turtle图形创建Snake游戏:https://www.youtube.com/watch?v=rrOqlfMujqQ&ab_channel=ChristianThompson 基本上,我无法让“蛇”真正动起来。我的屏幕变灰了,蛇被卡住了。 (应该在单击“ w / s / d / a”时移动)。

我收到的错误:
raise Terminator turtle.Terminator

我编写的程序是:

import turtle
import time

delay = 0.1

# Set up Screen
wn = turtle.Screen()
wn.title("Snake Game By Aviv Sabati")
wn.bgcolor("gray")
wn.setup(width=600, height=600)
wn.tracer(0)

# Snake Head
head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("green")
head.penup()
head.goto(0,0)
head.direction = "stop"

# functions
def go_up():
    head.directin = "up"

def go_down():
    head.directin = "down"

def go_right():
    head.directin = "left"

def go_left():
    head.directin = "right"

def move():
    if head.direction == "up":
        y = head.ycor()
        head.sety(y + 20)

    if head.direction == "down":
        y = head.ycor()
        head.sety(y - 20)

    if head.direction == "left":
        x = head.xcor()
        head.setx(x - 20)

    if head.direction == "right":
        x = head.xcor()
        head.setx(x + 20)

#Keybord binding

wn.listen()
wn.onkeypress(go_up, "w")
wn.onkeypress(go_down, "s")
wn.onkeypress(go_left, "a")
wn.onkeypress(go_right, "d")

#Main Game Loop

while True:
    wn.update()

    move()

    time.sleep(delay)

wn.mainloop()

1 个答案:

答案 0 :(得分:2)

在以下函数“ go_up”,“ go_down”,“ go_right”和“ go_left”中,您将“ direction”误认为是“ directin”。我还注意到,您的“ go_left”将方向设置为右,而“ go_right”将其设置为左。

代码的“导航”部分应如下所示:

def go_up():
    head.direction = "up"

def go_down():
    head.direction = "down"

def go_right():
    head.direction = "right"

def go_left():
    head.direction = "left"