Snake-Game using Turtle.py

# import required modules
import turtle
import time
import random

delay = 0.1
score = 0
high_score = 0


# Creating a window screen
wn = turtle.Screen()
wn.title("Snake Game")
wn.bgcolor("blue")
# the width and height can be put as user's choice
wn.setup(width=600, height=600)
wn.tracer(0)

# head of the snake
head = turtle.Turtle()
head.shape("square")
head.color("white")
head.penup()
head.goto(0, 0)
head.direction = "Stop"

# food in the game
food = turtle.Turtle()
colors = random.choice(['red', 'green', 'black'])
shapes = random.choice(['square', 'triangle', 'circle'])
food.speed(0)
food.shape(shapes)
food.color(colors)
food.penup()
food.goto(0, 100)

pen = turtle.Turtle()
pen.speed(0)
pen.shape("square")
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0, 250)
pen.write("Score : 0  High Score : 0", align="center",
          font=("candara", 24, "bold"))
# assigning key directions
def group():
    if head.direction != "down":
        head.direction = "up"


def godown():
    if head.direction != "up":
        head.direction = "down"


def goleft():
    if head.direction != "right":
        head.direction = "left"


def goright():
    if head.direction != "left":
        head.direction = "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)


wn.listen()
wn.onkeypress(group, "w")
wn.onkeypress(godown, "s")
wn.onkeypress(goleft, "a")
wn.onkeypress(goright, "d")

segments = []