class IT:
def __init__(self):
self.hook = Hook(Vector(250, 250))
self.line = Line(200, (251, 100), 2, self.hook)
self.length = math.sqrt((self.line.begin[0] - self.line.end[0]) *
(self.line.begin[0] - self.line.end[0]) +
(self.line.begin[1] - self.line.end[1]) *
(self.line.begin[1] - self.line.end[1]))
def draw(self, canvas):
self.iteration()
self.hook.update()
self.hook.draw(canvas)
self.line.draw_line(canvas)
def addspeed(self):
self.hook.vel = Vector(0, 1)
def subtractspeed(self):
self.hook.vel = Vector(0, -1)
def iteration(self):
if self.length <= 20:
self.addspeed()
if self.length >= 100:
self.subtractspeed()
