#####################引用数据库与函数##################### import turtle from gamebase import square from random import randrange from time import sleep #########################定义变量######################### snake=[[0,0],[10,0],[20,0],[30,0],[40,0],[50,0]] apple_x=randrange(-20,18)*10 apple_y=randrange(-19,19)*10 aim_x=0 aim_y=10 #########################定义函数######################### def change(x,y): global aim_x,aim_y aim_x=x aim_y=y def inside_snake(): for n in range(len(snake)-1): if snake[-1][0] == snake[n][0] and snake[-1][1]==snake[n][1]: return True return False def inside_map(): if -200<=snake[-1][0]<=180 and -190<=snake[-1][1]<=190: return True else : return False def gameLoop(): global apple_x,apple_y,aim_x,aim_y,snake snake.append([ snake[-1][0]+aim_x , snake[-1][1]+aim_y ]) if snake[-1][0]!=apple_x or snake[-1][1]!=apple_y: snake.pop(0) else : apple_x=randrange(-20,18)*10 apple_y=randrange(-19,19)*10 if (not inside_map()) or inside_snake(): square(snake[-1][0],snake[-1][1],10,"red") turtle.update() sleep(2) snake=[[0,0],[10,0],[20,0],[30,0],[40,0],[50,0]] apple_x=randrange(-20,18)*10 apple_y=randrange(-19,19)*10 aim_x=0 aim_y=10 turtle.clear() square(-210,-200,410,"black") square(-200,-190,390,"white") square(apple_x,apple_y,10,"red") for n in range(len(snake)): square(snake[n][0],snake[n][1],10,"black") turtle.update() turtle.ontimer(gameLoop, 200) ##########################主程序########################## turtle.setup(420, 420, 0, 0) turtle.hideturtle() turtle.tracer(False) turtle.listen() turtle.onkey(lambda: change(0, 10), "w") turtle.onkey(lambda: change(0, -10), "s") turtle.onkey(lambda: change(-10, 0), "a") turtle.onkey(lambda: change(10, 0), "d") gameLoop() turtle.done()

import turtle
from gamebase import square
from random import randrange
from time import sleep

#########################定义变量#########################
snake=[[0,0],[10,0],[20,0],[30,0],[40,0],[50,0]]
apple_x=randrange(-20,18)*10
apple_y=randrange(-19,19)*10
aim_x=0
aim_y=10

#########################定义函数#########################
def change(x,y):
    global aim_x,aim_y
    aim_x=x
    aim_y=y

def inside_snake():
    for n in range(len(snake)-1):
        if snake[-1][0] == snake[n][0] and snake[-1][1]==snake[n][1]:
            return True

    return False

def inside_map():
    if -200<=snake[-1][0]<=180 and -190<=snake[-1][1]<=190:
        return True 
    else : 
        return False 

def gameLoop():
    global apple_x,apple_y,aim_x,aim_y,snake  
    snake.append([ snake[-1][0]+aim_x , snake[-1][1]+aim_y ])
    
    if snake[-1][0]!=apple_x or snake[-1][1]!=apple_y:
        snake.pop(0)
    else :
        apple_x=randrange(-20,18)*10
        apple_y=randrange(-19,19)*10

    if (not inside_map()) or inside_snake():
        square(snake[-1][0],snake[-1][1],10,"red")
        turtle.update()
        sleep(2)
        snake=[[0,0],[10,0],[20,0],[30,0],[40,0],[50,0]]
        apple_x=randrange(-20,18)*10
        apple_y=randrange(-19,19)*10
        aim_x=0
        aim_y=10 
    
    turtle.clear()
    square(-210,-200,410,"black")
    square(-200,-190,390,"white")
    square(apple_x,apple_y,10,"red")
    for n in range(len(snake)):
        square(snake[n][0],snake[n][1],10,"black")
    turtle.update()
    turtle.ontimer(gameLoop, 200)
    
##########################主程序##########################
turtle.setup(420, 420, 0, 0)
turtle.hideturtle()
turtle.tracer(False)
turtle.listen()
turtle.onkey(lambda: change(0, 10), "w")
turtle.onkey(lambda: change(0, -10), "s")
turtle.onkey(lambda: change(-10, 0), "a")
turtle.onkey(lambda: change(10, 0), "d")
gameLoop()
turtle.done()

🐍 代码解释

• 变量定义：初始化蛇的位置、苹果的位置和移动方向。
• 函数定义：包括改变蛇的移动方向、检查蛇是否撞到自己或边界、以及游戏主循环。
• 主程序：设置游戏窗口、隐藏海龟图形、监听键盘输入并启动游戏循环。