python贪吃蛇小游戏

1.简介

使用了turtle库来创建图形界面，你可以使用键盘的W、A、S、D键来控制蛇的移动方向。蛇吃到食物后，身体会增长，如果蛇撞到自己或者游戏边界，游戏就会结束。

2. 代码

import turtle
import time
import randomdelay = 0.1# 生成食物的位置
food = turtle.Turtle()
food.shape("circle")
food.color("red")
food.penup()
food.goto(random.randint(-15, 15), random.randint(-15, 15))
food.speed(0)# 蛇头
head = turtle.Turtle()
head.shape("square")
head.color("blue")
head.penup()
head.goto(0, 0)
head.direction = "stop"# 蛇的食物
segments = []# 用于控制蛇的移动
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)#游戏结束
def game_over():# 提示游戏结束print("Game Over")turtle.write("Game Over", align="center", font=("Courier", 24, "normal"))head.goto(0, 0)head.direction = "stop"for segment in segments:segment.goto(1000, 1000)segments.clear()turtle.done()# 键盘绑定
def go_up():if head.direction != "down":head.direction = "up"
def go_down():if head.direction != "up":head.direction = "down"
def go_left():if head.direction != "right":head.direction = "left"
def go_right():if head.direction != "left":head.direction = "right"# 键盘监听
turtle.listen()
turtle.onkey(go_up, "w")
turtle.onkey(go_down, "s")
turtle.onkey(go_left, "a")
turtle.onkey(go_right, "d")# 主游戏循环
while True:turtle.update()# 检查碰撞边界if head.xcor()> 290 or head.xcor() < -290 or head.ycor() > 290 or head.ycor() < -290:game_over()# 检查蛇头是否接触到食物if head.distance(food) < 20:# 移动食物到随机位置x = random.randint(-15, 15)y = random.randint(-15, 15)food.goto(x, y)# 添加蛇的身体段new_segment = turtle.Turtle()new_segment.shape("square")new_segment.color("grey")new_segment.penup()segments.append(new_segment)# 移动蛇身体的最后部分到前一部分的位置for index in range(len(segments)-1, 0, -1):x = segments[index-1].xcor()y = segments[index-1].ycor()segments[index].goto(x, y)if len(segments) > 0:x = head.xcor()y = head.ycor()segments[0].goto(x, y)move()# 检查蛇头碰到身体for segment in segments:if 0 < segment.distance(head) < 20:game_over()time.sleep(delay)turtle.done()