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SnakeGame.py
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SnakeGame.py
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# Snake game
import turtle
import time
import random
delay = 0.01
# Set up the Screen
w = turtle.Screen()
w.title("Snake Game!!")
w.bgcolor("white")
w.setup(width=600, height=600)
w.tracer(0) # turn off the screen updates
# Create a snake head
head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("red")
head.penup()
head.goto(0, 0)
head.direction = "stop"
# Snake Food
food = turtle.Turtle()
food.speed(0)
food.shape("square")
food.color("black")
food.penup()
food.goto(0, 100)
segment = []
# Score
score = 0
highScore = 0
# Pen
pen = turtle.Turtle()
pen.speed(0)
pen.shape("square")
pen.color("black")
pen.penup()
pen.hideturtle()
pen.goto(0, 260)
pen.write("Score : 0 High Score : 0", align="center", font=("Courier", 18, "normal"))
# Functions
def go_up():
if head.direction != "down":
head.direction = "up"
def go_down():
if head.direction != "up":
head.direction = "down"
def go_right():
if head.direction != "left":
head.direction = "right"
def go_left():
if head.direction != "right":
head.direction = "left"
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 == "right":
x = head.xcor()
head.setx(x + 20)
if head.direction == "left":
x = head.xcor()
head.setx(x - 20)
# Keyboard bindings
w.listen()
w.onkeypress(go_up, "w")
w.onkeypress(go_down, "s")
w.onkeypress(go_right, "d")
w.onkeypress(go_left, "a")
# Main Game Loop
while True:
w.update()
# Check for a collision with 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 segment
for j in segment:
j.goto(1000, 1000)
# Clean the Segment list
segment.clear()
# Reset the score
score = 0
pen.clear()
pen.write("Score : {} High Score : {}".format(score, highScore), align="center",
font=("Courier", 18, "normal"))
# Check for collision with food
if head.distance(food) < 20:
# move food to random location
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("red")
new_segment.penup()
segment.append(new_segment)
score += 10
if score > highScore:
highScore = score
pen.clear()
pen.write("Score : {} High Score : {}".format(score, highScore), align="center",
font=("Courier", 18, "normal"))
# Move the end segment first in reverse order
for i in range(len(segment) - 1, 0, -1):
x = segment[i - 1].xcor()
y = segment[i - 1].ycor()
segment[i].goto(x, y)
# Move segment 0 to the head
if len(segment) > 0:
x = head.xcor()
y = head.ycor()
segment[0].goto(x, y)
move()
# Check for head collisions
for k in segment:
if k.distance(head) < 20:
head.goto(0, 0)
head.direction = "stop"
for j in segment:
j.goto(1000, 1000)
# Clean the Segment list
segment.clear()
# Reset the Score
score = 0
pen.clear()
pen.write("Score : {} High Score : {}".format(score, highScore), align="center",
font=("Courier", 18, "normal"))
time.sleep(delay)
w.mainloop()