how to make a snake game in python
import turtle
import time
import random
print("This is the game of snakes and food")
delay = 0.1
# Score
score = 0
high_score = 0
# Set up the screen
wn = turtle.Screen()
wn.title("Snake Game by Sharman Raval")
wn.bgcolor("green")
wn.setup(width=600, height=600)
wn.tracer(9) # Turn 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 head
head = turtle.Turtle()
head.speed(0)
head.shape("circle")
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, "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, "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 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: {} High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))
# Check for a collision with the 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("circle")
new_segment.color("grey")
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 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: {} High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))
i )
time.sleep(delay)
wn.mainloop()