Snake Game.py

import turtle
import time
import random

delay = 0.1

#Score
score = 0
high_score = 0

# Set up the Screen 
wn = turtle.Screen()
wn.title("Snake Game By Sachin")
wn.bgcolor("teal")
wn.setup(width=600,height=600)
wn.tracer(0) # Turns off the screen updates

# 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(0,220)
pen.write("Score: 0 High Score: 0",align="center",font=("Courier",24,"normal"))
pen.goto(0,200)
pen.write("Press: 'W' for up, 'S' for Down, 'A' for left, 'D' for Right",align="center",font=("Courier",10,"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 Bidings
wn.listen()
wn.onkeypress(go_up,"w")
wn.onkeypress(go_down,"s")
wn.onkeypress(go_left,"a")
wn.onkeypress(go_right,"d")

# Main game loop
while True:
	wn.update()
	# Check for the 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 screen
		segments.clear()

		#Reset the score
		score = 0

		#Resert the delay
		delay = 0.1

		#Update the score display
		pen.clear()
		pen.write("Score: {} High Score: {}".format(score,high_score),align="center",font=("Courier",24,"normal"))

    # Check for the collision of food
	if head.distance(Food) < 20:
		# Move the food to a random spot
		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: {} High Score: {}".format(score,high_score),align="center",font=("Courier",24,"normal"))

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

	move()

	#Check for the head collision with the body segments
	for segment in segments:
		if segment.distance(head)<20:
			time.sleep(0.5)
			head.goto(0,0)
			head.direction = "stop"

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

			#Clear the screen
			segments.clear()

			#Reset the score
			score = 0

			#Resert the delay
			delay = 0.1

			#Update the score display
			pen.clear()
			pen.write("Score: {} High Score: {}".format(score,high_score),align="center",font=("Courier",24,"normal"))



	time.sleep(delay)




wn.mainloop()