def destroy_existing(self, destroyed_blocks):
all_anims = []
overlay_objs = []
for id1, id2 in destroyed_blocks:
# Generate a square containing both arrow blocks, and fade colour.
if self.DESTRUCTION_RUNTIME > 0:
anims = []
if self.DESTRUCTION_ARROW_ANIM is not None:
anims.append(self.DESTRUCTION_ARROW_ANIM(self.arrow_blocks[id1]))
anims.append(self.DESTRUCTION_ARROW_ANIM(self.arrow_blocks[id2]))
else:
# Instantly remove on animate.
anims.append(FadeOut(self.arrow_blocks[id1], rate_func=lambda t: 1))
anims.append(FadeOut(self.arrow_blocks[id2], rate_func=lambda t: 1))
if self.DESTRUCTION_OVERLAY_COLOUR is not None:
top = max(self.arrow_blocks[id1].get_top()[1], self.arrow_blocks[id2].get_top()[1])
right = max(self.arrow_blocks[id1].get_right()[0], self.arrow_blocks[id2].get_right()[0])
fade_square = Square(side_length=self.scale * 2, color=self.DESTRUCTION_OVERLAY_COLOUR)
fade_square.set_opacity(self.DESTRUCTION_OVERLAY_STARTING_ALPHA)
fade_square.move_to([right - self.scale, top - self.scale, 0])
overlay_objs.append(fade_square)
anims.append(FadeOut(fade_square))
all_anims.append(AnimationGroup(*anims))
else:
self.remove(self.arrow_blocks[id1], self.arrow_blocks[id2])
del self.arrow_blocks[id1]
del self.arrow_blocks[id2]
if self.DESTRUCTION_RUNTIME > 0 and len(all_anims) > 0:
return overlay_objs, LaggedStart(*all_anims, lag_ratio=self.DESTRUCTION_LAG_RATIO)
return None, None
def construct(self):
circle = Circle(color=nq_colors["purple"])
circle.set_fill(nq_colors["purple"], opacity=0.5)
square = Square(color=nq_colors["orange"])
square.flip(RIGHT)
square.rotate(-3 * 2 * math.pi / 8)
self.play(ShowCreation(square))
self.play(Transform(square, circle))
self.play(FadeOut(square))
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 __init__(
self,
creature,
look_at_arg = None,
run_time= 0.5,
**kwargs
):
assert hasattr(creature, "bubble")
if look_at_arg:
creature.target.look_at(look_at_arg)
AnimationGroup.__init__(
self,
Uncreate(creature.bubble),
FadeOut(creature.bubble.content),
run_time = run_time
)
def create_arrows(self, created):
all_anims = []
overlay_objs = []
for (id1, (p11, p12), (d1x, d1y)), (id2, (p21, p22), (d2x, d2y)) in created:
self.arrow_blocks[id1] = self._create_arrow(
[((p11[0] + p12[0])/2 + 0.5) * self.scale, ((p11[1] + p12[1])/2 + 0.5) * self.scale, 0],
[d1x, d1y],
)
self.arrow_blocks[id2] = self._create_arrow(
[((p21[0] + p22[0])/2 + 0.5) * self.scale, ((p21[1] + p22[1])/2 + 0.5) * self.scale, 0],
[d2x, d2y],
)
overlay_objs.extend([self.arrow_blocks[id1], self.arrow_blocks[id2]])
if self.ARROW_OVERLAY_COLOUR is not None:
top = max(self.arrow_blocks[id1].get_top()[1], self.arrow_blocks[id2].get_top()[1])
right = max(self.arrow_blocks[id1].get_right()[0], self.arrow_blocks[id2].get_right()[0])
fade_square = Square(side_length=self.scale * 2, color=self.ARROW_OVERLAY_COLOUR)
fade_square.set_opacity(self.ARROW_OVERLAY_STARTING_ALPHA)
fade_square.move_to([right - self.scale, top - self.scale, 0])
overlay_objs.append(fade_square)
if self.ARROW_CREATE_RUNTIME > 0:
anims = []
if self.ARROW_OVERLAY_COLOUR is not None:
anims.append(FadeOut(fade_square))
if self.ARROW_CREATE_ANIM is not None:
if self.ARROW_CREATE_ANIM == FadeInFrom:
anims.append(FadeInFrom(self.arrow_blocks[id1], direction=[-d1x * self.scale, -d1y * self.scale, 0]))
anims.append(FadeInFrom(self.arrow_blocks[id2], direction=[-d2x * self.scale, -d2y * self.scale, 0]))
else:
anims.append(self.ARROW_CREATE_ANIM(self.arrow_blocks[id1]))
anims.append(self.ARROW_CREATE_ANIM(self.arrow_blocks[id2]))
else:
# This adds them to the scene.
anims.append(Transform(self.arrow_blocks[id1], self.arrow_blocks[id1]))
anims.append(Transform(self.arrow_blocks[id2], self.arrow_blocks[id2]))
all_anims.append(AnimationGroup(*anims))
if self.ARROW_CREATE_RUNTIME > 0 and len(all_anims) > 0:
return overlay_objs, LaggedStart(*all_anims, lag_ratio=self.ARROW_LAG_RATIO)
return overlay_objs, None
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
def construct(self):
FIVED_YELLOW = "#FFA500"
FIVED_GRAY = "#0D0D0D"
LOGO_UP = 1.5
bgnd = ImageMobject(filename_or_array="empty_board_1920x1080.tif")
logo = SVGMobject(file_name="fived")
text = SVGMobject(file_name="fived_text", stroke_width=0.15)
bot = logo[0].set_color(FIVED_GRAY)
top = logo[1].set_color(FIVED_GRAY)
mid = logo[2].set_color(FIVED_YELLOW)
frame = Square().scale(1.15)
frame.set_stroke(color=FIVED_GRAY, width=6)
text.set_color(FIVED_GRAY)
text.scale(0.27)
text.shift(LEFT * 0.15)
mid_anim = DrawBorderThenFill(
vmobject=mid,
run_time=3,
rate_func=double_smooth,
stroke_width=6,
stroke_color=FIVED_YELLOW,
)
bot_anim = DrawBorderThenFill(
vmobject=bot,
run_time=3,
rate_func=double_smooth,
stroke_width=1,
stroke_color=DARK_GRAY,
)
top_anim = DrawBorderThenFill(
vmobject=top,
run_time=3,
rate_func=double_smooth,
stroke_width=1,
stroke_color=DARK_GRAY,
)
txt_anim = DrawBorderThenFill(
vmobject=text,
run_time=3,
rate_func=double_smooth,
stroke_width=1.5,
stroke_color=DARK_GRAY,
)
frame_create = DrawBorderThenFill(
vmobject=frame,
run_time=3,
rate_func=double_smooth,
stroke_width=1,
stroke_color=DARK_GRAY,
)
self.add(bgnd) # add background
self.play(frame_create, bot_anim, top_anim, mid_anim)
self.play(ApplyMethod(logo.shift, UP * LOGO_UP),
ApplyMethod(frame.shift, UP * LOGO_UP),
run_time=1)
self.play(txt_anim)
self.wait()
ps_anim = FadeToColor(text[4], FIVED_YELLOW)
self.play(ps_anim)
d = text[4].copy()
self.add(d)
self.play(VFadeOut(logo, direction=UP, run_time=0.5),
VFadeOut(frame, run_time=0.5),
VFadeOut(text, direction=DOWN, run_time=0.5),
ApplyMethod(d.shift, LEFT, run_time=0.75))
self.play(ApplyMethod(d.scale, 240), run_time=0.5)
self.wait()
self.remove(bgnd)
self.play(FadeOut(d), run_time=0.5)
self.wait()
