def test_animationgroup_with_wait(using_opengl_renderer):
sqr = Square()
sqr_anim = FadeIn(sqr)
wait = Wait()
animation_group = AnimationGroup(wait, sqr_anim, lag_ratio=1)
animation_group.begin()
timings = animation_group.anims_with_timings
assert timings == [(wait, 0.0, 1.0), (sqr_anim, 1.0, 2.0)]
def generate_squares(self, iteration):
squares = []
for a in range(-iteration-1, iteration+1):
b1 = iteration - math.floor(abs(a + 0.5))
b2 = -iteration + math.floor(abs(a + 0.5)) - 1
squares.append(self._generate_open_square([(a+0.5) * self.scale, (b1+0.5) * self.scale, 0]))
squares.append(self._generate_open_square([(a+0.5) * self.scale, (b2+0.5) * self.scale, 0]))
if self.SQUARE_CREATE_ANIM is not None and self.SQUARE_CREATE_RUNTIME > 0:
return LaggedStart(*(self.SQUARE_CREATE_ANIM(v, rate_func=self.SQUARE_CREATE_RATE_FUNC) for v in squares), lag_ratio=self.SQUARE_LAG_RATIO)
else:
# Instantly show.
return LaggedStart(*(FadeIn(v, rate_func=lambda t: 1) for v in squares), lag_ratio=self.SQUARE_LAG_RATIO)
def test_succession_timing():
"""Test timing of animations in a succession."""
line = Line()
animation_1s = FadeIn(line, shift=UP, run_time=1.0)
animation_4s = FadeOut(line, shift=DOWN, run_time=4.0)
succession = Succession(animation_1s, animation_4s)
assert succession.get_run_time() == 5.0
succession.begin()
assert succession.active_index == 0
# The first animation takes 20% of the total run time.
succession.interpolate(0.199)
assert succession.active_index == 0
succession.interpolate(0.2)
assert succession.active_index == 1
succession.interpolate(0.8)
assert succession.active_index == 1
# At 100% and more, no animation must be active anymore.
succession.interpolate(1.0)
assert succession.active_index == 2
assert succession.active_animation is None
succession.interpolate(1.2)
assert succession.active_index == 2
assert succession.active_animation is None
