turtle lesson 6 - EtchAsketch Version 1.py

from tkinter import *

# Set Variables:
p1_x = 300
p1_y = 400
p1_colour = "green"
line_width = 5
line_length = 5


# Player control functions
def p1_move_N(event):
    global p1_y
    canvas.create_line(p1_x, p1_y, p1_x, p1_y - line_length, width = line_width, fill = p1_colour)
    p1_y = p1_y - line_length

def p1_move_S(event):
    global p1_y
    canvas.create_line(p1_x, p1_y, p1_x, p1_y + line_length, width = line_width, fill = p1_colour)
    p1_y = p1_y + line_length

def p1_move_E(event):
    global p1_x
    canvas.create_line(p1_x, p1_y, p1_x + line_length, p1_y, width = line_width, fill = p1_colour)
    p1_x = p1_x + line_length

def p1_move_W(event):
    global p1_x
    canvas.create_line(p1_x, p1_y, p1_x - line_length, p1_y, width = line_width, fill = p1_colour)
    p1_x = p1_x - line_length

def erase_all(event):
    canvas.delete(ALL)


#Main window from Tkinter:
window = Tk()
window.title("My EtchAsketch")
canvas = Canvas(bg = "black", height = 400, width = 600, highlightthickness = 0)
canvas.pack()

# Press key for movement
window.bind("<Up>", p1_move_N)
window.bind("<Down>", p1_move_S)
window.bind("<Right>", p1_move_E)
window.bind("<Left>", p1_move_W)
window.bind("u", erase_all)

window.mainloop()