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Escalera

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EscaleraArrastrá para girarlo
// «Escalera» · gpt-6-sol (medium)
// A modular stone staircase: a full 48x48 footprint (x 0..47, y 0..47). Six solid steps going up toward +y (away from the viewer): each step is 8 blocks deep on y and 8 blocks higher than the last, the full 48 wide on x, so the first step is z 0..7 and the top step reaches z 47 (top at the back). Solid underneath (no gaps), straight vertical sides. The tread of each step is light grey stone with a 1-block darker front edge, the risers are slightly darker grey with brick lines; the side faces show the stepped profile with stone layers.

const stone = "#929ba2";
const tread = "#d3dbe0";
const treadLight = "#dce2e6";
const frontEdge = "#aab5bd";
const riser = "#a2acb4";
const side = "#a9b3ba";
const mortar = "#818c95";

// Continuous floor and enclosed outer faces keep the staircase visually solid.
// The large, invisible interiors are hollow to reduce the block count.
box(0, 0, 0, 47, 47, 0, stone);

for (let step = 0; step < 6; step++) {
  const y0 = step * 8;
  const top = (step + 1) * 8 - 1;

  // Stepped side faces, with horizontal courses and staggered joints.
  for (const x of [0, 47]) {
    for (let y = y0; y < y0 + 8; y++) {
      for (let z = 1; z < top; z++) {
        const course = Math.floor(z / 4);
        const joint = (y + (course % 2 ? 3 : 0)) % 6 === 0;
        set(x, y, z, z % 4 === 0 || joint ? mortar : side);
      }
    }
  }

  // Visible eight-block riser at the front of this step.
  for (let x = 0; x < 48; x++) {
    for (let z = step * 8; z < top; z++) {
      const course = Math.floor(z / 4);
      const joint = (x + (course % 2 ? 6 : 0)) % 12 === 0;
      set(x, y0, z,
        z % 4 === 0 || joint ? mortar :
        z === top - 1 ? "#bac3c9" : riser
      );
    }
  }

  // Sparse supports underneath the tread, hidden inside the outer skin.
  for (const x of [8, 18, 28, 38]) {
    box(x, y0 + 3, 1, x + 1, y0 + 4, top - 1, stone);
  }

  // Light stone tread and its one-block darker front edge.
  for (let x = 0; x < 48; x++) {
    for (let y = y0; y < y0 + 8; y++) {
      let color = y === y0
        ? frontEdge
        : y >= y0 + 5 ? treadLight : tread;
      if (y !== y0 && rand() < 0.012) color = "#c5cfd5";
      set(x, y, top, color);
    }
  }
}

// Enclose the full-height back without filling the invisible interior.
for (let x = 0; x < 48; x++) {
  for (let z = 1; z < 47; z++) {
    const course = Math.floor(z / 4);
    const joint = (x + (course % 2 ? 6 : 0)) % 12 === 0;
    set(x, 47, z, z % 4 === 0 || joint ? mortar : riser);
  }
}