Snake.py

import turtle, time, random, pygame
from pygame import mixer

pygame.init()
mixer.init()

delay=0.1

# Score
score = 0
high_score = 0

# Set up screen
wn = turtle.Screen()
wn.title("Snake")
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"

# Apple
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=("commodore 64 pixelized", 20, "normal"))

# 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 border collision
    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(f"Score: {score}    High Score: {high_score}", align="center", font=("commodore 64 pixelized", 20, "normal"))

    # Check for collision with food
    if head.distance(food) < 20:
        
        # Move food to a random spot on screen
        x = random.randint(-290,290)
        y = random.randint(-290,250)
        food.goto(x,y)

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

        # Shorten the delay
        delay -= 0.001

        # Increase score
        score += 1
        if score > high_score:
            high_score = score

        pen.clear()
        pen.write(f"Score: {score}    High Score: {high_score}", align="center", font=("commodore 64 pixelized", 20, "normal"))

    # Move the end segment 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 collisions with 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 segment list
            segments.clear()

            # Reset the score
            score = 0

            # Reset the delay
            delay = 0
            pen.clear()
            pen.write(f"Score: {score}    High Score: {high_score}", align="center", font=("commodore 64 pixelized", 20, "normal"))

    time.sleep(delay)
wn.mainloop()