diff options
Diffstat (limited to 'scenes/v5_japones.py')
| -rw-r--r-- | scenes/v5_japones.py | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/scenes/v5_japones.py b/scenes/v5_japones.py new file mode 100644 index 0000000..9b617d5 --- /dev/null +++ b/scenes/v5_japones.py @@ -0,0 +1,160 @@ +# -*- coding: utf-8 -*- +import sys, os +sys.path.insert(0, os.path.dirname(os.path.abspath(__file__))) +from manim import * +from tiktok import * + +M = 0.6 # pendiente de las familias de rectas +XA, XB = -3.2, 3.7 # extremos de los segmentos +C_TENS, C_UNITS = [1.2, 1.8], [-1.2] # 21 -> rectas "/" +D_TENS, D_UNITS = [-1.2], [1.2, 1.8, 2.4] # 13 -> rectas "\" + + +def pline(c): + return Line([XA, M * XA + c, 0], [XB, M * XB + c, 0]) + + +def qline(d): + return Line([XA, -M * XA + d, 0], [XB, -M * XB + d, 0]) + + +def cross(c, d): + x = (d - c) / (2 * M) + return np.array([x, M * x + c, 0]) + + +class Japones(TikTok): + NAME = "japones" + + def construct(self): + self.prepare() + chip = self.chip("Multiplicar sin tablas", VERDE) + + P = [pline(c) for c in C_TENS + C_UNITS] + Q = [qline(d) for d in D_TENS + D_UNITS] + for l in P: + l.set_stroke(AMBAR, 7) + for l in Q: + l.set_stroke(CELESTE, 7) + + zonas = { + "izq": [cross(c, d) for c in C_TENS for d in D_TENS], + "med": [cross(c, d) for c in C_TENS for d in D_UNITS] + + [cross(c, d) for c in C_UNITS for d in D_TENS], + "der": [cross(c, d) for c in C_UNITS for d in D_UNITS], + } + dots = {k: VGroup(*[Dot(p, radius=0.13, color=WHITE) for p in v]) + for k, v in zonas.items()} + + fig = VGroup(*P, *Q, *dots.values()) + fig.scale(6.15 / fig.height).move_to(UP * 2.35) + + with self.beat(0) as b: + b.play(FadeIn(chip, shift=DOWN * 0.3), run_time=0.45) + hook = self.fit(Text("así se multiplica en Japón", font=FONT, font_size=50, + weight=BOLD, color=WHITE), 8.0).move_to(UP * 2.6) + b.play(Write(hook), run_time=1.0) + + with self.beat(1) as b: + op = MathTex(r"21 \times 13", color=WHITE).scale(2.6).move_to(UP * 0.6) + op[0][0:2].set_color(AMBAR) + op[0][3:5].set_color(CELESTE) + b.play(FadeOut(hook), run_time=0.3) + b.play(Write(op), run_time=1.0) + + with self.beat(2) as b: + b.play(op.animate.scale(0.44).move_to(DOWN * 2.75), run_time=0.6) + b.play(LaggedStart(*[Create(P[i]) for i in range(len(C_TENS))], + lag_ratio=0.35), run_time=0.85) + b.play(Create(P[len(C_TENS)]), run_time=0.5) + d2 = Text("2", font=FONT, font_size=44, weight=BOLD, color=AMBAR) + d2.move_to(P[0].get_end() + RIGHT * 0.45 + UP * 0.12) + d1 = Text("1", font=FONT, font_size=44, weight=BOLD, color=AMBAR) + d1.move_to(P[2].get_end() + RIGHT * 0.45 + UP * 0.12) + b.play(FadeIn(d2), FadeIn(d1), run_time=0.4) + + with self.beat(3) as b: + b.play(Create(Q[0]), run_time=0.5) + b.play(LaggedStart(*[Create(Q[i]) for i in range(1, len(Q))], + lag_ratio=0.3), run_time=0.95) + e1 = Text("1", font=FONT, font_size=44, weight=BOLD, color=CELESTE) + e1.move_to(Q[0].get_start() + LEFT * 0.45 + UP * 0.12) + e3 = Text("3", font=FONT, font_size=44, weight=BOLD, color=CELESTE) + e3.move_to(Q[2].get_start() + LEFT * 0.45 + UP * 0.12) + b.play(FadeIn(e1), FadeIn(e3), run_time=0.4) + + digs = VGroup(d2, d1, e1, e3) + res = {} + prev = [] + + def zona(bt, key, col, valor, texto): + box = SurroundingRectangle(dots[key], color=col, buff=0.34, + corner_radius=0.3, stroke_width=7) + bt.play(Create(box), run_time=0.5) + bt.play(LaggedStart(*[FadeIn(dd, scale=0.4) for dd in dots[key]], + lag_ratio=0.18), run_time=0.7) + lab = Text(texto, font=FONT, font_size=42, weight=BOLD, color=col) + lab.next_to(box, DOWN, buff=0.28) + self.fit(lab, 4.6) + if lab.get_left()[0] < -3.9: + lab.shift(RIGHT * (-3.9 - lab.get_left()[0])) + if lab.get_right()[0] > 3.9: + lab.shift(LEFT * (lab.get_right()[0] - 3.9)) + anim = [FadeIn(lab, shift=UP * 0.12)] + if prev: + anim.append(FadeOut(prev[-1])) + bt.play(*anim, run_time=0.5) + prev.append(lab) + res[key] = (box, lab, valor) + return box, lab + + with self.beat(4) as b: + bz, lz = zona(b, "izq", VERDE, 2, "2 cruces") + + with self.beat(5) as b: + bm, lm = zona(b, "med", ROSA, 7, "6 + 1 = 7") + + with self.beat(6) as b: + bd, ld = zona(b, "der", CELESTE, 3, "3 cruces") + + with self.beat(7) as b: + nums = VGroup( + Text("2", font=FONT, font_size=96, weight=BOLD, color=VERDE), + Text("7", font=FONT, font_size=96, weight=BOLD, color=ROSA), + Text("3", font=FONT, font_size=96, weight=BOLD, color=CELESTE), + ).arrange(RIGHT, buff=0.55).move_to(DOWN * 1.35) + b.play(FadeOut(VGroup(ld, op)), run_time=0.3) + b.play(TransformFromCopy(dots["izq"], nums[0]), + TransformFromCopy(dots["med"], nums[1]), + TransformFromCopy(dots["der"], nums[2]), run_time=1.1) + total = Text("273", font=FONT, font_size=112, weight=BOLD, color=WHITE) + total.move_to(DOWN * 2.9) + b.play(TransformFromCopy(nums, total), run_time=0.9) + + with self.beat(8) as b: + b.play(FadeOut(VGroup(*P, *Q, *dots.values(), bz, bm, bd, digs, nums)), + run_time=0.5) + check = MathTex(r"21 \times 13 = 273", color=VERDE).scale(1.9).move_to(UP * 2.4) + b.play(total.animate.move_to(UP * 0.2).scale(0.9), run_time=0.5) + b.play(Write(check), run_time=0.9) + b.play(Flash(check, color=VERDE, line_length=0.6, num_lines=20, + flash_radius=2.4), run_time=0.8) + + with self.beat(9) as b: + b.play(FadeOut(total), run_time=0.3) + tip = VGroup( + self.fit(Text("¿una zona da más de 9?", font=FONT, font_size=46, + weight=BOLD, color=WHITE), 8.0), + self.fit(Text("llevás una a la de al lado", font=FONT, font_size=46, + weight=BOLD, color=AMBAR), 8.0), + ).arrange(DOWN, buff=0.35).move_to(DOWN * 0.6) + b.play(FadeIn(tip[0], shift=UP * 0.15), run_time=0.6) + b.play(FadeIn(tip[1], shift=UP * 0.15), run_time=0.6) + + with self.beat(10) as b: + cta = self.fit(Text("guardalo para la tarea", font=FONT, font_size=60, + weight=BOLD, color=AMBAR), 8.0).move_to(DOWN * 2.6) + b.play(Write(cta), run_time=0.9) + b.play(Circumscribe(cta, color=AMBAR, buff=0.3, stroke_width=7), run_time=1.0) + + self.finish() |