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import turtle
from random import randrange
snake = [[0, 0]]
aim = [0, 10]
food = [-10, 0]
def change_direction(x, y):
? ? aim[0] = x
? ? aim[1] = y
def sqaure(x, y, size, color):
? ? turtle.penup()
? ? turtle.goto(x, y)
? ? turtle.pendown()
? ? turtle.begin_fill()
? ? turtle.color(color)
? ? for i in range(4):
? ? ? ? turtle.forward(size)
? ? ? ? turtle.left(90)
? ? turtle.end_fill()
import copy
def inside(head):
? ? return -250<head[0]<250 and -250 <head[1] <250
def snake_move():
? ? #head = snake[-1][:]
? ? head = [snake[-1][0],snake[-1][1]]
? ? #head = copy.deepcopy(snake[-1])
? ? head = [head[0] + aim[0], head[1] + aim[1]]
? ? #print(head)
? ? if head in snake or not inside(head):
? ? ? ? sqaure(head[0],head[1],10,'red')
? ? ? ? turtle.update()
? ? ? ? return
? ? if head == food:
? ? ? ? print("snake", len(snake))
? ? ? ? food[0] = randrange(-15, 15) * 10
? ? ? ? food[1] = randrange(-15, 15) * 10
? ? else:
? ? ? ? snake.pop(0)
? ? snake.append(head)
? ? turtle.clear()
? ? sqaure(food[0], food[1], 10, "green")
? ? for body in snake:
? ? ? ? sqaure(body[0], body[1], 10, "black")
? ? turtle.update()
? ? turtle.ontimer(snake_move, 300)
turtle.setup(500,500)
turtle.hideturtle()
turtle.listen()
turtle.onkey(lambda: change_direction(0, 10), "Up")
turtle.onkey(lambda: change_direction(0, -10), "Down")
turtle.onkey(lambda: change_direction(-10, 0), "Left")
turtle.onkey(lambda: change_direction(10, 0), "Right")
turtle.tracer(False)
snake_move()
turtle.done()
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