import pgzrun

TITLE = "Paf l'oiseau"
WIDTH = 400
HEIGHT = 708

def draw():
    screen.blit('cascade', (0, 0))
    
titi = Actor('bird1', (75, 350))

def draw():
    screen.blit('background', (0, 0))
    titi.draw()

def on_mouse_up():
    print('Clic souris !')
    titi.speed = 0


def update():
    titi.x += titi.speed


titi.speed = 3

pgzrun.go()