def create_target(self): little_dot = Dot(radius=0) little_dot.set_fill(self.color, opacity=self.opacity) little_dot.add_updater( lambda d: d.move_to(self.focus_point) ) return little_dot
def __init__(self, mobject_or_point, **kwargs): digest_config(self, kwargs) big_dot = Dot( radius=FRAME_X_RADIUS + FRAME_Y_RADIUS, stroke_width=0, fill_color=self.color, fill_opacity=0, ) little_dot = Dot(radius=0) little_dot.set_fill(self.color, opacity=self.opacity) little_dot.move_to(mobject_or_point) Transform.__init__(self, big_dot, little_dot, **kwargs)
def increment(self, run_time_per_anim=1): moving_dot = Dot( self.counting_dot_starting_position, radius=self.count_dot_starting_radius, color=self.digit_place_colors[0], ) moving_dot.generate_target() moving_dot.set_fill(opacity=0) kwargs = { "run_time": run_time_per_anim } continue_rolling_over = True first_move = True place = 0 while continue_rolling_over: added_anims = [] if first_move: added_anims += self.get_digit_increment_animations() first_move = False moving_dot.target.replace( next(self.dot_template_iterators[place]) ) self.play(MoveToTarget(moving_dot), *added_anims, **kwargs) self.curr_configurations[place].add(moving_dot) if len(self.curr_configurations[place].split()) == self.get_place_max(place): full_configuration = self.curr_configurations[place] self.curr_configurations[place] = VGroup() place += 1 center = full_configuration.get_center_of_mass() radius = 0.6 * max( full_configuration.get_width(), full_configuration.get_height(), ) circle = Circle( radius=radius, stroke_width=0, fill_color=self.digit_place_colors[place], fill_opacity=0.5, ) circle.move_to(center) moving_dot = VGroup(circle, full_configuration) moving_dot.generate_target() moving_dot[0].set_fill(opacity=0) else: continue_rolling_over = False