def setup(self):
self.background = FullScreenFadeRectangle(
fill_color=self.background_color,
fill_opacity=1,
)
self.add(self.background)
PiCreatureScene.setup(self)
self.screen = ScreenRectangle(height=self.screen_height)
self.screen.to_corner(UP + LEFT)
self.hold_up_spot = self.teacher.get_corner(UP +
LEFT) + MED_LARGE_BUFF * UP
def __init__(self, frame=None, **kwargs):
"""
frame is a Mobject, (should almost certainly be a rectangle)
determining which region of space the camera displys
"""
digest_config(self, kwargs)
if frame is None:
frame = ScreenRectangle(height=FRAME_HEIGHT)
frame.set_stroke(
self.default_frame_stroke_color,
self.default_frame_stroke_width,
)
self.frame = frame
Camera.__init__(self, **kwargs)
def __init__(self, frame=None, **kwargs):
"""
frame is a Mobject, (should almost certainly be a rectangle)
determining which region of space the camera displys
"""
digest_config(self, kwargs)
if frame is None:
frame = ScreenRectangle(height=FRAME_HEIGHT)
frame.set_stroke(
self.default_frame_stroke_color,
self.default_frame_stroke_width,
)
self.frame = frame
Camera.__init__(self, **kwargs)
class TeacherStudentsScene(PiCreatureScene):
CONFIG = {
"student_colors": [BLUE_D, BLUE_E, BLUE_C],
"teacher_color": GREY_BROWN,
"background_color": GREY_E,
"student_scale_factor": 0.8,
"seconds_to_blink": 2,
"screen_height": 3,
}
def setup(self):
self.background = FullScreenFadeRectangle(
fill_color=self.background_color,
fill_opacity=1,
)
self.add(self.background)
PiCreatureScene.setup(self)
self.screen = ScreenRectangle(height=self.screen_height)
self.screen.to_corner(UP + LEFT)
self.hold_up_spot = self.teacher.get_corner(UP +
LEFT) + MED_LARGE_BUFF * UP
def create_pi_creatures(self):
self.teacher = Mortimer(color=self.teacher_color)
self.teacher.to_corner(DOWN + RIGHT)
self.teacher.look(DOWN + LEFT)
self.students = VGroup(
*[Randolph(color=c) for c in self.student_colors])
self.students.arrange(RIGHT)
self.students.scale(self.student_scale_factor)
self.students.to_corner(DOWN + LEFT)
self.teacher.look_at(self.students[-1].eyes)
for student in self.students:
student.look_at(self.teacher.eyes)
return [self.teacher] + list(self.students)
def get_teacher(self):
return self.teacher
def get_students(self):
return self.students
def teacher_says(self, *content, **kwargs):
return self.pi_creature_says(self.get_teacher(), *content, **kwargs)
def student_says(self, *content, **kwargs):
if "target_mode" not in kwargs:
target_mode = random.choice([
"raise_right_hand",
"raise_left_hand",
])
kwargs["target_mode"] = target_mode
if "bubble_kwargs" not in kwargs:
kwargs["bubble_kwargs"] = {"direction": LEFT}
student = self.get_students()[kwargs.get("student_index", 2)]
return self.pi_creature_says(student, *content, **kwargs)
def teacher_thinks(self, *content, **kwargs):
return self.pi_creature_thinks(self.get_teacher(), *content, **kwargs)
def student_thinks(self, *content, **kwargs):
student = self.get_students()[kwargs.get("student_index", 2)]
return self.pi_creature_thinks(student, *content, **kwargs)
def change_all_student_modes(self, mode, **kwargs):
self.change_student_modes(*[mode] * len(self.students), **kwargs)
def change_student_modes(self, *modes, **kwargs):
added_anims = kwargs.pop("added_anims", [])
self.play(self.get_student_changes(*modes, **kwargs), *added_anims)
def get_student_changes(self, *modes, **kwargs):
pairs = list(zip(self.get_students(), modes))
pairs = [(s, m) for s, m in pairs if m is not None]
start = VGroup(*[s for s, m in pairs])
target = VGroup(*[s.copy().change_mode(m) for s, m in pairs])
if "look_at_arg" in kwargs:
for pi in target:
pi.look_at(kwargs["look_at_arg"])
anims = [Transform(s, t) for s, t in zip(start, target)]
return LaggedStart(
*anims,
lag_ratio=kwargs.get("lag_ratio", 0.5),
run_time=1,
)
# return Transform(
# start, target,
# lag_ratio=lag_ratio,
# run_time=2
# )
def zoom_in_on_thought_bubble(self,
bubble=None,
radius=FRAME_Y_RADIUS + FRAME_X_RADIUS):
if bubble is None:
for pi in self.get_pi_creatures():
if hasattr(pi, "bubble") and isinstance(
pi.bubble, ThoughtBubble):
bubble = pi.bubble
break
if bubble is None:
raise Exception("No pi creatures have a thought bubble")
vect = -bubble.get_bubble_center()
def func(point):
centered = point + vect
return radius * centered / get_norm(centered)
self.play(
*
[ApplyPointwiseFunction(func, mob) for mob in self.get_mobjects()])
def teacher_holds_up(self,
mobject,
target_mode="raise_right_hand",
added_anims=None,
**kwargs):
mobject.move_to(self.hold_up_spot, DOWN)
mobject.shift_onto_screen()
added_anims = added_anims or []
self.play(FadeIn(mobject, shift=UP), self.teacher.change, target_mode,
*added_anims)
def setup(self):
PiCreatureScene.setup(self)
self.screen = ScreenRectangle(height=self.screen_height)
self.screen.to_corner(UP + LEFT)
self.hold_up_spot = self.teacher.get_corner(UP +
LEFT) + MED_LARGE_BUFF * UP
def setup(self):
PiCreatureScene.setup(self)
self.screen = ScreenRectangle(height=self.screen_height)
self.screen.to_corner(UP + LEFT)
self.hold_up_spot = self.teacher.get_corner(UP + LEFT) + MED_LARGE_BUFF * UP
class TeacherStudentsScene(PiCreatureScene):
CONFIG = {
"student_colors": [BLUE_D, BLUE_E, BLUE_C],
"teacher_color": GREY_BROWN,
"student_scale_factor": 0.8,
"seconds_to_blink": 2,
"screen_height": 3,
}
def setup(self):
PiCreatureScene.setup(self)
self.screen = ScreenRectangle(height=self.screen_height)
self.screen.to_corner(UP + LEFT)
self.hold_up_spot = self.teacher.get_corner(UP + LEFT) + MED_LARGE_BUFF * UP
def create_pi_creatures(self):
self.teacher = Mortimer(color=self.teacher_color)
self.teacher.to_corner(DOWN + RIGHT)
self.teacher.look(DOWN + LEFT)
self.students = VGroup(*[
Randolph(color=c)
for c in self.student_colors
])
self.students.arrange(RIGHT)
self.students.scale(self.student_scale_factor)
self.students.to_corner(DOWN + LEFT)
self.teacher.look_at(self.students[-1].eyes)
for student in self.students:
student.look_at(self.teacher.eyes)
return [self.teacher] + list(self.students)
def get_teacher(self):
return self.teacher
def get_students(self):
return self.students
def teacher_says(self, *content, **kwargs):
return self.pi_creature_says(
self.get_teacher(), *content, **kwargs
)
def student_says(self, *content, **kwargs):
if "target_mode" not in kwargs:
target_mode = random.choice([
"raise_right_hand",
"raise_left_hand",
])
kwargs["target_mode"] = target_mode
if "bubble_kwargs" not in kwargs:
kwargs["bubble_kwargs"] = {"direction": LEFT}
student = self.get_students()[kwargs.get("student_index", 2)]
return self.pi_creature_says(
student, *content, **kwargs
)
def teacher_thinks(self, *content, **kwargs):
return self.pi_creature_thinks(
self.get_teacher(), *content, **kwargs
)
def student_thinks(self, *content, **kwargs):
student = self.get_students()[kwargs.get("student_index", 2)]
return self.pi_creature_thinks(student, *content, **kwargs)
def change_all_student_modes(self, mode, **kwargs):
self.change_student_modes(*[mode] * len(self.students), **kwargs)
def change_student_modes(self, *modes, **kwargs):
added_anims = kwargs.pop("added_anims", [])
self.play(
self.get_student_changes(*modes, **kwargs),
*added_anims
)
def get_student_changes(self, *modes, **kwargs):
pairs = list(zip(self.get_students(), modes))
pairs = [(s, m) for s, m in pairs if m is not None]
start = VGroup(*[s for s, m in pairs])
target = VGroup(*[s.copy().change_mode(m) for s, m in pairs])
if "look_at_arg" in kwargs:
for pi in target:
pi.look_at(kwargs["look_at_arg"])
anims = [
Transform(s, t)
for s, t in zip(start, target)
]
return LaggedStart(
*anims,
lag_ratio=kwargs.get("lag_ratio", 0.5),
run_time=1,
)
# return Transform(
# start, target,
# lag_ratio=lag_ratio,
# run_time=2
# )
def zoom_in_on_thought_bubble(self, bubble=None, radius=FRAME_Y_RADIUS + FRAME_X_RADIUS):
if bubble is None:
for pi in self.get_pi_creatures():
if hasattr(pi, "bubble") and isinstance(pi.bubble, ThoughtBubble):
bubble = pi.bubble
break
if bubble is None:
raise Exception("No pi creatures have a thought bubble")
vect = -bubble.get_bubble_center()
def func(point):
centered = point + vect
return radius * centered / get_norm(centered)
self.play(*[
ApplyPointwiseFunction(func, mob)
for mob in self.get_mobjects()
])
def teacher_holds_up(self, mobject, target_mode="raise_right_hand", added_anims=None, **kwargs):
mobject.move_to(self.hold_up_spot, DOWN)
mobject.shift_onto_screen()
mobject_copy = mobject.copy()
mobject_copy.shift(DOWN)
mobject_copy.fade(1)
added_anims = added_anims or []
self.play(
ReplacementTransform(mobject_copy, mobject),
self.teacher.change, target_mode,
*added_anims
)
