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Lajas

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LajasArrastrá para girarlo
// «Lajas» · gpt-6-sol (medium)
// A cluster of flat stepping stones: 4-5 flat oval grey slabs of different sizes lying on the ground, slightly overlapping, with little tufts of grass between them.

// Five broad, low stepping stones, with gently irregular edges.
const stones = [
  { x: 10, y: 20, rx: 7.5, ry: 6.5, h: 2 },
  { x: 19, y: 29, rx: 8.5, ry: 6.5, h: 3 },
  { x: 31, y: 19, rx: 9.0, ry: 7.0, h: 3 },
  { x: 38, y: 30, rx: 7.0, ry: 6.0, h: 2 },
  { x: 23, y: 39, rx: 8.0, ry: 5.0, h: 2 }
];

const topHeights = new Map();
const key = (x, y) => `${x},${y}`;

for (const s of stones) {
  for (let y = Math.floor(s.y - s.ry - 1); y <= Math.ceil(s.y + s.ry + 1); y++) {
    for (let x = Math.floor(s.x - s.rx - 1); x <= Math.ceil(s.x + s.rx + 1); x++) {
      const dx = (x - s.x) / s.rx;
      const dy = (y - s.y) / s.ry;
      const d = Math.sqrt(dx * dx + dy * dy);
      const edge = (rand() - 0.5) * 0.065;
      if (d > 1 + edge) continue;

      // A narrow bevel makes the slabs chunky without making them domes.
      const height = d > 0.91 + edge ? Math.max(0, s.h - 2)
                   : d > 0.82 + edge ? s.h - 1 : s.h;
      for (let z = 0; z <= height; z++) {
        const color = z === 0 ? "#777d7a" : z < height ? "#929994" : "#b7beba";
        set(x, y, z, color);
      }
      topHeights.set(key(x, y), Math.max(height, topHeights.get(key(x, y)) ?? -1));
    }
  }
}

// Speckled, sunlit upper faces and occasional soft green moss.
for (const [position, z] of topHeights) {
  const [x, y] = position.split(",").map(Number);
  if (get(x, y, z + 1)) continue;
  const n = rand();
  let color = z === 0 ? "#858d87" : "#b9c1bb";
  if (n < 0.08) color = "#d4d9ce";
  else if (n < 0.17) color = "#a7b1aa";
  else if (n < 0.205) color = "#96ad82";
  else if (n < 0.225) color = "#b4c793";
  set(x, y, z, color);
}

// Small cracks that read from above without breaking the rounded silhouette.
for (const [x, y, z] of [
  [29, 18, 3], [30, 18, 3], [31, 17, 3],
  [18, 29, 3], [19, 29, 3], [20, 30, 3],
  [23, 39, 2], [24, 39, 2]
]) {
  if (get(x, y, z) && !get(x, y, z + 1)) set(x, y, z, "#939e98");
}

// Bright little grass tufts tucked into the gaps between slabs.
const tufts = [
  [6, 29], [11, 31], [19, 16], [22, 19],
  [29, 34], [33, 37], [43, 20], [40, 39],
  [13, 39], [5, 15]
];
const greens = ["#56ad48", "#72c857", "#92d969", "#429e46"];
for (const [x, y] of tufts) {
  box(x, y, 0, x + 1, y + 1, 0, "#60b750");
  set(x, y, 1, greens[0]);
  set(x, y, 2, greens[1]);
  set(x - 1, y, 1, greens[1]);
  set(x - 1, y, 2, greens[2]);
  set(x + 1, y + 1, 1, greens[0]);
  set(x + 1, y + 1, 2, greens[2]);
  set(x + 1, y, 1, greens[3]);
  if (rand() > 0.35) set(x, y, 3, "#a6e477");
}