snake game.py

import turtle
import time
import random

delay = 0.1

#score===============
score = 0 
high_score = 0 


#SCREEN MAKING=========
wn = turtle.Screen()
wn.title("Snake game by @ANSHUL ")
wn.bgcolor("green")
wn.setup(width=600 , height=600)
wn.tracer(0)

#SNAKE HEAD===========
head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("black")
head.penup()
head.goto(0,0)
head.direction = "stop"

#snake food===========
food = turtle.Turtle()
food.speed(0)
food.shape("circle")
food.color("red")
food.penup()
food.goto(0,100)


segments = []

#pen===================
pen = turtle.Turtle()
pen.speed(0)
pen.shape("square")
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0,260)
pen.write("SCORE: 0 HIGH SCORE: 0",align="center", font=("Courier", 24, "bold"))


#functions===============
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"



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)
#keyboard bindings============
wn.listen()
wn.onkeypress(go_up, "Up")
wn.onkeypress(go_down, "Down")
wn.onkeypress(go_left, "Left")
wn.onkeypress(go_right, "Right")


#main game loop=============
while True:
    wn.update()




    #check for a collision with the border============

    if head.xcor()>290 or head.xcor()<-290 or head.ycor()>290 or head.ycor()<-290:
        time.sleep(1)
        head.goto(0,0)
        head.direction = "stop"

        #hide the segments=========================
        for segment in segments:
            segment.goto(1000,1000)

        #clear the segments list===================
        segments.clear()

        #reset the score===========================
        score = 0

        #reset the delay===========================
        delay =0.1

        
        pen.clear()
        pen.write("SCORE: {} HIGHSCORE: {}".format(score, high_score), align="center",font=("Courier", 24, "bold"))


    #check for the collision with the food=============
    if head.distance(food) < 20:
        #move the food to random position=======
        x = random.randint(-290,290)
        y = random.randint(-290,290)
        food.goto(x,y)

        #add a segment============
        new_segment = turtle.Turtle()
        new_segment.speed(0)
        new_segment.shape("square")
        new_segment.color("yellow")
        new_segment.penup()
        segments.append(new_segment)



        #shorten the delay=========
        delay -= 0.001

        #increase the score========
        score += 10

        if score > high_score:
            high_score = score
        pen.clear()
        pen.write("SCORE: {} HIGHSCORE: {}".format(score, high_score), align="center",font=("Courier", 24, "bold"))

    #move the end segments  first in reverse order===========
    for index in range(len(segments)-1, 0, -1):
        x = segments[index-1].xcor()
        y = segments[index-1].ycor()
        segments[index].goto(x,y)

    #move segment 0 to where the head is=====================
    if len(segments) > 0:
        x = head.xcor()
        y = head.ycor()
        segments[0].goto(x,y)


        
    move()

    #check for head collision with the body segments=========
    for segment in segments:
        if segment.distance(head) < 20:
            time.sleep(1)
            head.goto(0,0)
            head.direction = "stop"
            #hide the segments
            for segment in segments:
                segment.goto(1000,1000)

            #clear the segments list
            segments.clear()

            #reset the score
            score = 0

            #reset the delay
            delay = 0.1

            #update the score display
            pen.clear()
            pen.write("SCORE: {} HIGHSCORE: {}".format(score, high_score), align="center",font=("Courier", 24, "bold"))


    
    time.sleep(delay)

wn.mainloop()