manim/bundle.js

(() => {
  // src/constants.ts
  var PI = Math.PI;
  var TAU = 2 * PI;
  var DEFAULT_DOT_RADIUS = 0.08;

  // src/mobject/geometry.ts
  var Arc = class {
    constructor(radius, startAngle, angle) {
      this.radius = radius;
      this.startAngle = startAngle;
      this.angle = angle;
    }
  };
  var Circle = class extends Arc {
    constructor(radius) {
      super(radius, 0, TAU);
    }
  };
  var Dot = class extends Circle {
    constructor(radius) {
      super(radius != null ? radius : DEFAULT_DOT_RADIUS);
    }
  };

  // src/renderer/index.ts
  var Canvas2DRenderer = class {
    constructor(context) {
      this.context = context;
      this.skipAnimations = false;
      this.animationStartTime = new Date();
      this.animationElapsedTime = 0;
    }
    init_scene(scene) {
    }
    render(scene) {
      this.updateFrame(scene);
      if (this.skipAnimations)
        return;
      for (let mobject of scene.mobjects) {
        if (!mobject.shouldRender)
          continue;
        this.renderMobject(mobject);
      }
    }
    renderMobject(mobject) {
    }
    updateFrame(scene) {
      for (let mobject of scene.mobjects) {
        if (!mobject.shouldRender)
          continue;
        this.renderMobject(mobject);
      }
      this.animationElapsedTime = +new Date() - +this.animationStartTime;
    }
  };

  // src/scene/index.ts
  var Scene = class {
    constructor() {
      this.animations = [];
      this.mobjects = [];
    }
    construct() {
    }
    add(...mobjects) {
      this.mobjects.push(...mobjects);
    }
  };

  // src/utils/tex.ts
  function texToSvg(expression) {
    let el2 = MathJax.tex2svg(expression);
    let child = el2.children[0];
    return child.innerHTML;
  }

  // src/index.ts
  function init(scene, el2) {
    let canvasEl = document.createElement("canvas");
    canvasEl.width = 640;
    canvasEl.height = 480;
    let contextOrNull = canvasEl.getContext("2d");
    if (contextOrNull == null)
      return;
    let context = contextOrNull;
    let renderer = new Canvas2DRenderer(context);
    let lastTime;
    let step = function(time) {
      let timeDelta = time - (lastTime != null ? lastTime : 0);
      renderer.render(scene);
      requestAnimationFrame(step);
      lastTime = time;
    };
    requestAnimationFrame(step);
    el2.appendChild(canvasEl);
  }
  var ExampleScene = class extends Scene {
    construct() {
      let dot = new Dot([-2, -1, 0]);
      let dot2 = new Dot([2, 1, 0]);
      let line = new Line(dot.getCenter(), dot2.getCenter());
      let b1 = new Brace(line);
      this.add(line, dot, dot2);
    }
  };
  texToSvg("x + 1");
  var el = document.getElementById("manim");
  if (el)
    init(new ExampleScene(), el);
})();
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