Web Dev Solutions

if (window.IS_DEV) {
  const source = new EventSource('/esbuild');
  source.addEventListener('change', () => location.reload());
}

const xmlns = 'http://www.w3.org/2000/svg';
const svg = document.querySelector('svg');

const hex = {
  inradius: 8.66,
  circumradius: 10,
}

const horzSpacing = hex.inradius;
const vertSpacing = hex.circumradius * 3 / 2;


function toKey(q, r, s) {
  return `${[q, r, s]}`;
}

function sameSigns(a, b) {
  return a > -1 && b > -1 || a < 0 && b < 0;
}

function getNeighbors(coords) {
  const [q, r, s] = coords.split(',').map(n => +n);

  return [
    toKey(q + 1, r, s - 1),
    toKey(q - 1, r, s + 1),
    toKey(q + 1, r - 1, s),
    toKey(q - 1, r + 1, s),
    toKey(q, r + 1, s - 1),
    toKey(q, r - 1, s + 1),
  ]
}

function generateRadialCoords(l, { q, r, s }, radius) {
  const origin = toKey(q, r, s);
  const list = new Set(l);
  const neighbors = new Set();

  let next = new Set();

  list.add(origin);
  next.add(origin);

  for (let i = 0; i < radius; i++) {
    next.forEach(coords => {
      getNeighbors(coords).forEach(n => {
        list.add(n);
        neighbors.add(n);
      });
    });

    next = new Set(neighbors);
    neighbors.clear();
  }

  return list;
}

function generateRadialCoordsRect({ rows, columns, odd = false, equal = true } = {}, { q = 0, r = 0, s = 0 } = {}) {
  const list = new Set();

  for (let row = 0; row < rows; row++) {
    const alternating = row % 2;
    const dr = row;

    for (let col = 0; col < columns; col++) {
      let dq = -(alternating + row) / 2 + alternating - col;
      let ds = -(row + alternating) / 2 + col;

      if (odd) {
        dq = dq - alternating;
        ds = ds + alternating;
      }

      list.add(toKey(q + dq, r + dr, s + ds));
    }

    if (!equal) {
      if ((odd && !(row % 2)) || (!odd && row % 2)) {
        let dq = -(alternating + row) / 2 + alternating - columns;
        let ds = -(row + alternating) / 2 + columns;

        if (odd) {
          dq = dq - alternating;
          ds = ds + alternating;
        }

        list.add(toKey(q + dq, r + dr, s + ds));
      }
    }
  }

  return list;
}

function drawHexes(el, list) {
  list.forEach(key => {
    const [q, r, s] = key.split(',').map(n => +n);

    let x;

    if (q === s)
      x = 0;
    else if (sameSigns(q, s))
      x = Math.abs(q - s);
    else
      x = Math.abs(q) + Math.abs(s);

    x = (q > s ? -1 : 1) * x * horzSpacing;
    y = r * vertSpacing;

    const g = document.createElementNS(xmlns, 'g');
    g.setAttributeNS(null, 'transform', `translate(${x}, ${y})`);

    const use = document.createElementNS(xmlns, 'use');
    use.setAttributeNS(null, 'href', '#hex');

    const qText = document.createElementNS(xmlns, 'text');
    qText.textContent = q;
    qText.setAttributeNS(null, 'x', -3);
    qText.setAttributeNS(null, 'y', -3);

    const rText = document.createElementNS(xmlns, 'text');
    rText.textContent = r;
    rText.setAttributeNS(null, 'x', 5);
    rText.setAttributeNS(null, 'y', 1.5);

    const sText = document.createElementNS(xmlns, 'text');
    sText.textContent = s;
    sText.setAttributeNS(null, 'x', -3);
    sText.setAttributeNS(null, 'y', + 5);

    [use, qText, rText, sText].forEach(el => g.appendChild(el));
    el.appendChild(g);
  });
}

const grid = generateRadialCoordsRect({ rows: 25, columns: 33 }, { q: 22, r: -12, s: -10 });
const building1 = generateRadialCoordsRect({ rows: 5, columns: 3, equal: false }, { q: 7, r: -4, s: -3 });
const building2 = generateRadialCoordsRect({ rows: 4, columns: 3, odd: true }, { q: 0, r: -4, s: 4 });
const building3 = generateRadialCoords(new Map(), { q: -1, r: 2, s: -1 }, 1);

// generateRadialCoordsRect({ rows: 4, columns: 8, equal: false }, { q: 18, r: -8, s: -10 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 8, columns: 2, equal: false }, { q: 9, r: -10, s: 1 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 6, columns: 13, odd: true }, { q: 2, r: -8, s: 6 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 1, columns: 10 }, { q: -1, r: -9, s: 10 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 1, columns: 2 }, { q: -1, r: -2, s: 3 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 1, columns: 6 }, { q: -8, r: -2, s: 10 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 8, columns: 4, odd: true }, { q: 4, r: 3, s: -7 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 8, columns: 4, odd: true }, { q: -5, r: 3, s: 2 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 6, columns: 3, equal: false }, { q: -12, r: 3, s: 9 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 8, columns: 4 }, { q: 10, r: 3, s: -13 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 3, columns: 1 }, { q: 9, r: 7, s: -16 }).forEach(coords => grid.delete(coords));
// generateRadialCoordsRect({ rows: 5, columns: 1, odd: true }, { q: 5, r: 6, s: -11 }).forEach(coords => grid.delete(coords));

const buildingCoords = [
  generateRadialCoordsRect({ rows: 4, columns: 8, equal: false }, { q: 18, r: -8, s: -10 }),
  generateRadialCoordsRect({ rows: 8, columns: 2, equal: false }, { q: 9, r: -10, s: 1 }),
  generateRadialCoordsRect({ rows: 6, columns: 13, odd: true }, { q: 2, r: -8, s: 6 }),
  generateRadialCoordsRect({ rows: 1, columns: 10 }, { q: -1, r: -9, s: 10 }),
  generateRadialCoordsRect({ rows: 1, columns: 2 }, { q: -1, r: -2, s: 3 }),
  generateRadialCoordsRect({ rows: 1, columns: 6 }, { q: -8, r: -2, s: 10 }),
  generateRadialCoordsRect({ rows: 8, columns: 4, odd: true }, { q: 4, r: 3, s: -7 }),
  generateRadialCoordsRect({ rows: 8, columns: 4, odd: true }, { q: -5, r: 3, s: 2 }),
  generateRadialCoordsRect({ rows: 6, columns: 3, equal: false }, { q: -12, r: 3, s: 9 }),

  // hex building
  // generateRadialCoordsRect({ rows: 8, columns: 4 }, { q: 10, r: 3, s: -13 }),
  // generateRadialCoordsRect({ rows: 3, columns: 1 }, { q: 9, r: 7, s: -16 }),
  // generateRadialCoordsRect({ rows: 5, columns: 1, odd: true }, { q: 5, r: 6, s: -11 }),
]

buildingCoords.forEach(building => building.forEach(coords => grid.delete(coords)));

// building2.forEach(coords => grid.delete(coords));
// building3.forEach(coords => grid.delete(coords));

// drawHexes(svg, generateRadialCoords(new Map(), { q: 0, r: 0, s: 0 }, 16));

// const rectEven = generateRadialCoordsRect({ rows: 2, columns: 2 }, { q: 9, r: -5, s: -4 });
// const rectOdd = generateRadialCoordsRect({ rows: 2, columns: 2, odd: true }, { q: 8, r: -2, s: -6 });
// const rectEvenUnevenCols = generateRadialCoordsRect({ rows: 2, columns: 1, equal: false}, { q: 6, r: 1, s: -7 });
// const rectOddUnevenCols = generateRadialCoordsRect({ rows: 2, columns: 1, odd: true, equal: false}, { q: 5, r: 4, s: -9 });

// drawHexes(svg, rectEven);
// drawHexes(svg, rectOdd);
// drawHexes(svg, rectEvenUnevenCols);
// drawHexes(svg, rectOddUnevenCols);

// drawHexes(svg, generateRadialCoordsRect({ rows: 7, columns: 6, odd: true, equal: false }, { q: 5, r: -5, s: 0 }));

const buildings = document.createElementNS(xmlns, 'g');
buildings.classList.add('buildings');

const bldElevationBasement = document.createElementNS(xmlns, 'g');
bldElevationBasement.classList.add('elevation-basement');
buildingCoords.forEach(building => drawHexes(bldElevationBasement, building));

const bldElevation1 = document.createElementNS(xmlns, 'g');
bldElevation1.classList.add('elevation-1');
buildingCoords.forEach(building => drawHexes(bldElevation1, building));

const bldElevation2 = document.createElementNS(xmlns, 'g');
bldElevation2.classList.add('elevation-2');
buildingCoords.forEach(building => drawHexes(bldElevation2, building));

const elevation1 = document.createElementNS(xmlns, 'g');
elevation1.classList.add('elevation-1');
drawHexes(elevation1, grid);

buildings.appendChild(bldElevationBasement);
buildings.appendChild(bldElevation1);
buildings.appendChild(bldElevation2);

const buildingBlah = svg.querySelector('#building2');

const bld2grid = document.createElementNS(xmlns, 'g');
drawHexes(bld2grid, generateRadialCoordsRect({ rows: 9, columns: 4, odd: true, equal: false }, { q: 4, r: -4, s: 0 }));
drawHexes(bld2grid, generateRadialCoordsRect({ rows: 5, columns: 1 }, { q: 3, r: -1, s: -2 }));
drawHexes(bld2grid, generateRadialCoordsRect({ rows: 5, columns: 1, odd: true }, { q: -2, r: -1, s: 3 }));

const bld2elvBasement = bld2grid.cloneNode(true);
bld2elvBasement.classList.add('elevation-basement');
buildingBlah.querySelector('.floor').after(bld2elvBasement);

const bld2elv1 = bld2grid.cloneNode(true);
bld2elv1.classList.add('elevation-1');
bld2elvBasement.after(bld2elv1);

const bld2elv2 = bld2grid.cloneNode(true);
bld2elv2.classList.add('elevation-2');
bld2elv1.after(bld2elv2);

const bld2elvRoof = bld2grid.cloneNode(true);
bld2elvRoof.classList.add('elevation-roof');
bld2elv2.after(bld2elvRoof);

buildingBlah.before(elevation1);
buildingBlah.before(buildings);