Сергей Соколов

const ctx = document.getElementById("canvas").getContext("2d");

const gun = {
  x: 10,
  y: 10,
}
const rays = [];
const blocks = [];

for (let i = 0; i < 20; i++) {
  rays.push({x: 0, y: 0,
    angle: i,
    radius: 0,
    isStopped: false,
    raysa: 0
  });
}

blocks.push({x: 20, y: 20});

function draw() {
  rays.forEach(ray => {
    const radians = ray.angle / 180 * Math.PI;
    if (!ray.isStopped) {
      ray.x = Math.cos(radians) * ray.raysa + gun.x;
      ray.y = Math.sin(radians) * ray.raysa + gun.y;
      ray.radius = ray.raysa;
      if (ray.x >= 100) ray.isStopped = true;
      
      ray.raysa += 1;
      if (ray.isStopped) {
        ray.x = Math.cos(radians) * ray.radius + gun.x;
        ray.y = Math.sin(radians) * ray.radius + gun.y;
      }
    }
    ray.angle += 2;

    if (i % 10 == 0) console.log(ray.angle);

    ctx.clearRect(0, 0, 320, 320);
    ctx.beginPath();
    ctx.moveTo(gun.x, gun.y);
    ctx.lineTo(ray.x, ray.y);
    ctx.stroke();
  });
}

//setInterval(draw,20);

const src = '"По приказу ОАО "Рога и Копыта""';

src.split('').reduce((acc,c,i,arr) => {
  if (c === '"') {
    const prev = i ? arr[i - 1] : '';
    if (i && prev !== ' ') {
      if (prev === '"') return acc;
      acc += '»';
    } else {
      acc += '«';
    }
  } else {
    acc += c;
  }
  return acc;
}, '')

const requote = source => {
  const Q_OPEN = 1;
  const Q_CLOSE = 2;
  const SPACE = 3;
  const OTHER = 4;

  let prev = SPACE;

  return source.split('').reduce((acc, c, i, arr) => {
    if (c === '"') {
      if (prev !== SPACE) {
        if (prev === Q_CLOSE) return acc;
        acc += '»';
        prev = Q_CLOSE;
      } else {
        acc += '«';
        prev = Q_OPEN;
      }
    } else {
      acc += c;
      prev = c === ' ' ? SPACE : OTHER;
    }
    return acc;
  }, '')
}

requote(src)