Python_week#4_quiz4b_question7

import simplegui

pos_x = 10
pos_y = 20
vol_x = 3
vol_y = 0.7

def keydown(key):
global pos_x, pos_y
if key == simplegui.KEY_MAP[“up”]:
pos_x += vol_x
pos_y += vol_y

def draw(canvas):
canvas.draw_line([50,50],[180,50],2,”red”)
canvas.draw_line([180,50],[180,140],2,”red”)
canvas.draw_line([180,140],[50,140],2,”red”)
canvas.draw_line([50,140],[50,50],2,”red”)
canvas.draw_circle((pos_x,pos_y),2,2,”White”)

frame = simplegui.create_frame(“test”,200,200)
frame.set_draw_handler(draw)
frame.set_keydown_handler(keydown)

frame.start()