A Simple Snake Game made in Python 3

snake_game.py

# Simple Snake Game in Python 3 for Beginners
# By @TokyoEdTech

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 @TokyoEdTech")
wn.bgcolor("green")
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, 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("square")
        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"))

    time.sleep(delay)

wn.mainloop()

Are you running it remotely? If so there may be no graphics just the terminal.

…

On Fri, Dec 8, 2023, 19:36 ShantanuPandeyGit ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Traceback (most recent call last): File "/home/ubuntu/python/snake.py", line 12, in wn = turtle.Screen() File "/usr/lib/python3.10/turtle.py", line 3664, in Screen Turtle._screen = _Screen() File "/usr/lib/python3.10/turtle.py", line 3680, in *init* _Screen._root = self._root = _Root() File "/usr/lib/python3.10/turtle.py", line 435, in *init* TK.Tk.*init*(self) File "/usr/lib/python3.10/tkinter/*init*.py", line 2299, in *init* self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable ***@***.***:~/python$ nano snake.py — Reply to this email directly, view it on GitHub <https://gist.github.com/wynand1004/ec105fd2f457b10d971c09586ec44900#gistcomment-4786561> or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADG373WKZODIMTDJ76OJ4XDYILUS7BFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVA4TCNRXGEZTMMNHORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

Thank you for the code! The snake game was amazing.

I think you're commenting to the wrong person, just saying

Wdym it works

arrow keys are not working in ubuntu how to play the game

The game uses w, a, s, d. Make sure caps lock is off. Also make sure you click inside the window after running so it has focus.

…

On Sun, Apr 7, 2024, 14:58 Ashfaque Ahmed ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ arrow keys are not working in ubuntu how to play the game — Reply to this email directly, view it on GitHub <https://gist.github.com/wynand1004/ec105fd2f457b10d971c09586ec44900#gistcomment-5014954> or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADG373UU6V45QHVMUMXKSHLY4DOBTBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDUOJ2WLJDOMFWWLO3UNBZGKYLEL5YGC4TUNFRWS4DBNZ2F6YLDORUXM2LUPGBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVA4TCNRXGEZTMMNHORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

its amazing game nice! I'm still learning how to code python thanks for sharing this!

Hey! I was wondering is there a way I can change the background from green to checkers?

You can

 /bin/python3 "/home/devil/Code/Python/Turtle/Snake Game/snake_game.py"
Traceback (most recent call last):
  File "/home/devil/Code/Python/Turtle/Snake Game/snake_game.py", line 4, in <module>
    import turtle
  File "/usr/lib/python3.10/turtle.py", line 107, in <module>
    import tkinter as TK
ModuleNotFoundError: No module named 'tkinter'

go to terminal and type pip install tkinter, i hope it will work

Everything is thought out very cool. I am just learning to write games on Fiton and not only. In the future, I would like to create something with online games. I always have holandia kasyna as an example, I read about it https://pl.bestcasinos-pl.com/holandia-kasyna/ here. This would already be an achievement for me. But I can’t imagine how much more effort I will need to spend on this.

arrow keys are not working in ubuntu how to play the game

Change each of the letters for up, down, etc in the "onkeypress" statements to correspond to the literal words "Up" "Down" "Left" and "Right" in place of the 'wsad' options, and you'll get keyboard arrow functionality.