from JMSSGraphics import *

mario_ypos = 300
jmss = Graphics(width = 800, height = 600, title = "My Game!", fps = 60)
yvel = 0


@jmss.mainloop
def game():
    global mario_ypos, yvel
    mario_ypos -= yvel   

    if mario_ypos <= -1:
        yvel = -yvel

    jmss.clear()
    jmss.drawImage("mario.png", x = 300, y = mario_ypos)

    jmss.run()