def test_animationbuilder_in_group():
sqr = Square()
circ = Circle()
animation_group = AnimationGroup(sqr.animate.shift(DOWN).scale(2), FadeIn(circ))
assert all(isinstance(anim, Animation) for anim in animation_group.animations)
succession = Succession(sqr.animate.shift(DOWN).scale(2), FadeIn(circ))
assert all(isinstance(anim, Animation) for anim in succession.animations)
def test_succession_in_succession_timing():
"""Test timing of nested successions."""
line = Line()
animation_1s = FadeIn(line, shift=UP, run_time=1.0)
animation_4s = FadeOut(line, shift=DOWN, run_time=4.0)
nested_succession = Succession(animation_1s, animation_4s)
succession = Succession(
FadeIn(line, shift=UP, run_time=4.0),
nested_succession,
FadeIn(line, shift=UP, run_time=1.0),
)
assert nested_succession.get_run_time() == 5.0
assert succession.get_run_time() == 10.0
succession._setup_scene(Mock())
succession.begin()
succession.interpolate(0.1)
assert succession.active_index == 0
# The nested succession must not be active yet, and as a result hasn't set active_animation yet.
assert not hasattr(nested_succession, "active_animation")
succession.interpolate(0.39)
assert succession.active_index == 0
assert not hasattr(nested_succession, "active_animation")
# The nested succession starts at 40% of total run time
succession.interpolate(0.4)
assert succession.active_index == 1
assert nested_succession.active_index == 0
# The nested succession second animation starts at 50% of total run time.
succession.interpolate(0.49)
assert succession.active_index == 1
assert nested_succession.active_index == 0
succession.interpolate(0.5)
assert succession.active_index == 1
assert nested_succession.active_index == 1
# The last animation starts at 90% of total run time. The nested succession must be finished at that time.
succession.interpolate(0.89)
assert succession.active_index == 1
assert nested_succession.active_index == 1
succession.interpolate(0.9)
assert succession.active_index == 2
assert nested_succession.active_index == 2
assert nested_succession.active_animation is None
# After 100%, nothing must be playing anymore.
succession.interpolate(1.0)
assert succession.active_index == 3
assert succession.active_animation is None
assert nested_succession.active_index == 2
assert nested_succession.active_animation is None
def test_animationgroup_with_wait():
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