猫史档案馆

【作品展示】

 

【作品介绍】

贪吃蛇是一个很经典的游戏！

试一试吧，很好玩！

 

【作品源代码】

import turtle as t
import random


t.bgcolor('yellow')

caterpillar = t.Turtle()
caterpillar.shape('喵')
caterpillar.color('red')
caterpillar.speed(0)
caterpillar.penup()
caterpillar.hideturtle()

leaf = t.Turtle()
leaf_shape = ((0,0),(14,2),(18,6),(20,20),(6,18),(2,14))
t.register_shape('leaf',leaf_shape)
leaf.shape('leaf')
leaf.color('green')
leaf.penup()
leaf.hideturtle()
leaf.speed(0)

game_started = False
text_turtle = t.Turtle()
text_turtle.write('Press SPACE to start', align='center',font=('Arial',16,'bold'))
text_turtle.hideturtle()

score_turtle = t.Turtle()
score_turtle.hideturtle()
score_turtle.speed(0)

def outside_window():
    left_wall = -t.window_width() / 2
    right_wall = t.window_width() / 2
    top_wall = t.window_height() / 2
    bottom_wall = -t.window_height() / 2
    (x,y) = caterpillar.pos()
    outside = \
        x< left_wall or \
        x> right_wall or \
        y< bottom_wall or \
        y> top_wall 
    return outside

def game_over():
    caterpillar.color('yellow')
    leaf.color('yellow')
    t.penup()
    t.hideturtle()
    t.write('GAME OVER!',align='center',font=('Arial', 30,'normal'))

def display_score(current_score):
    score_turtle.clear()
    score_turtle.penup()
    x = (t.window_width() / 2) - 50
    y = (t.window_height() / 2) - 50
    score_turtle.setpos(x,y)
    score_turtle.write(str(current_score),align='right',font=('Arial',40,'bold'))

def place_leaf():
    leaf.ht()
    leaf.setx(random.randint(-200,200))
    leaf.sety(random.randint(-200,200))
    leaf.st()

def start_game():
    global game_started
    if game_started:
        return
    game_started = True

    score = 0
    text_turtle.clear()

    caterpillar_speed = 2
    caterpillar_length = 3
    caterpillar.shapesize(1,caterpillar_length,1)
    caterpillar.showturtle()
    display_score(score)
    place_leaf()

    while True:
        caterpillar.forward(caterpillar_speed)
        if caterpillar.distance(leaf) < 20:
            place_leaf()
            caterpillar_length = caterpillar_length + 1
            caterpillar.shapesize(1,caterpillar_length,1)
            caterpillar_speed = caterpillar_speed + 1
            score = score + 10
            display_score(score)
        if outside_window():
            game_over()
            break

def move_up():
    if caterpillar.heading() == 0 or caterpillar.heading() == 180:
        caterpillar.setheading(90)

def move_down():
    if caterpillar.heading() == 0 or caterpillar.heading() == 180:
        caterpillar.setheading(270)

def move_left():
    if caterpillar.heading() == 90 or caterpillar.heading() == 270:
        caterpillar.setheading(180)


def move_right():
    if caterpillar.heading() == 90 or caterpillar.heading() == 270:
        caterpillar.setheading(0)
t.onkey(start_game,'space')
t.onkey(move_up,'Up')
t.onkey(move_right, 'Right')
t.onkey(move_down, 'Down')
t.onkey(move_left, 'Left')
t.listen()
t.mainloop()

 

【提示】

部分含有Python第三方库相关内容的作品，在海龟编辑器网页端无法运行哦！如遇到这种情况，可以打开下面的链接，下载海龟编辑器客户端：

https://python.codemao.cn