python_MM/edudefs.py at master · Isaac2k1/python_MM · GitHub

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#Snake Head
import turtle
import random

head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("black")
head.penup()
head.goto(0, 100)
head.direction = "stop"

def move():
    if head.direction == "up":
        y = head.ycor() #y coordinate of the turtle
        head.sety(y + 20)

    if head.direction == "down":
        y = head.ycor() #y coordinate of the turtle
        head.sety(y - 20)

    if head.direction == "right":
        x = head.xcor() #y coordinate of the turtle
        head.setx(x + 20)

    if head.direction == "left":
        x = head.xcor() #y coordinate of the turtle
        head.setx(x - 20)

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"