Snake Game.py

import turtle
import random
import time
delay=0.1
score=0
highestscore=0
#snake body
bodies=[]

#screen | canvas
s=turtle.Screen()
s.title("Snake Game")
s.bgcolor("white")
s.setup(width=600,height=600)

#create snake head
head=turtle.Turtle()
head.speed(0)
head.shape("circle")
head.color("white")
head.fillcolor("red")
head.penup()
head.goto(0,0)
head.direction ="stop"

#Snake food
food=turtle.Turtle()
food.speed(0)
food.shape("square")
food.color("yellow")
food.fillcolor("yellow")
food.penup()
food.ht()
food.goto(0,200)
food.st()

#score board
sb=turtle.Turtle()
sb.shape("circle")
sb.fillcolor("black")
sb.penup()
sb.ht()
sb.goto(-250,-250)
sb.write("Score:0 | Highest Score: 0")

def moveup():
    if head.direction!="down":
        head.direction="up"
def movedown():
    if head.direction!="up":
        head.direction="down"
def moveleft():
    if head.direction!="right":
        head.direction="left"
def moveright():
    if head.direction!="left":
        head.direction="right"
def movestop():
    head.direction!="stop"
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)

# Event Handling -key mapping
s.listen()
s.onkey(moveup,"Up")
s.onkey(movedown,"Down")
s.onkey(moveleft,"Left")
s.onkey(moveright,"Right")
s.onkey(movestop,"space")

while True:
    s.update() # this is to update the screen
    # check collision with boarder
    #check collission with food
    
    if head.xcor()>290:
        head.setx(-290)
    if head.xcor()<-290:
        head.setx(290)
    if head.ycor()>290:
        head.sety(-290)
    if head.ycor()<-290:
        head.sety(290)

    
    if head.distance(food)<20:
        #move the food to new random place
        x=random.randint(-290,290)
        y=random.randint(-290,290)
        food.goto(x,y)

        
        #increase the length of the snake
        body=turtle.Turtle()
        body.speed(0)
        body.penup()
        body.shape("circle")
        body.fillcolor("green")
        bodies.append(body)#append new body

        #increase the score
        score+=10

        #update the highest score
        if score>highestscore:
                highestscore=score
        sb.clear()
        sb.write("Score:{} Highest Score:{}".format(score,highestscore))

    for index in range(len (bodies)-1,0,-1):
        x=bodies[index-1].xcor()
        y=bodies[index-1].ycor()
        bodies[index].goto(x,y)

    if len(bodies)>0:
        x=head.xcor()
        y=head.ycor()
        bodies[0].goto(x,y)
    move()
#check collission with snake body
    for body in bodies:
        if body.distance(head)<20:
            time.sleep(1)
            head.goto(0,0)
            head.direction="stop"

#hide bodies
            for body in bodies :
                body.ht()
            bodies.clear()

            score=0
            delay=0.1
#updates score borad
            sb.clear()
            sb.write("Score:{} Highest Score:{}".format(score,highestscore))
    time.sleep(delay)
s.mainloop()