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Biplano rojo

de fogonCC06749 bloques
Biplano rojoArrastrá para girarlo
// «Biplano rojo» · gpt-6-sol (medium)
// Biplane («Biplano rojo»).

// Red biplane — front faces -y.
const red = "#d8372b";
const darkRed = "#aa261f";
const cream = "#f0e8d1";
const navy = "#26333b";
const steel = "#657174";
const wood = "#98622e";

function wing(x0, x1, y0, y1, z, upper) {
  for (let x = x0; x <= x1; x++) {
    for (let y = y0; y <= y1; y++) {
      const tip = Math.min(x - x0, x1 - x);
      if (tip === 0 && (y === y0 || y === y1)) continue;

      set(x, y, z - 2, "#92251f");
      set(x, y, z - 1, y === y0 ? cream : darkRed);

      let color = red;
      if (y === y0) color = cream;
      else if (y === y0 + 1) color = "#f04a37";
      else if (y === y1) color = "#ab2823";
      else if (x % 6 === 0) color = "#e34030";
      else if (rand() < 0.09) color = "#dd392b";
      set(x, y, z, color);
    }
  }

  // Pale, squared-off wing tips.
  for (let y = y0 + 1; y <= y1 - 1; y++) {
    set(x0, y, z, cream);
    set(x1, y, z, cream);
  }

  if (upper) {
    // Blue-white-red insignia, one near each tip.
    for (const cx of [x0 + 8, x1 - 8]) {
      const cy = Math.floor((y0 + y1) / 2);
      for (let dx = -4; dx <= 4; dx++) {
        for (let dy = -4; dy <= 4; dy++) {
          const d = Math.sqrt(dx * dx + dy * dy);
          if (d <= 3.8) {
            set(cx + dx, cy + dy, z + 1,
              d > 2.7 ? navy : d > 1.35 ? "#f3eee0" : red);
          }
        }
      }
    }
  }
}

// Tailplane and its cream-edged elevator.
box(16, 36, 22, 32, 42, 23, darkRed);
box(17, 36, 24, 31, 41, 24, red);
box(16, 42, 24, 32, 43, 24, cream);
box(21, 38, 25, 27, 43, 25, "#e74432");
box(23, 37, 25, 25, 42, 29, darkRed);
box(23, 38, 27, 25, 41, 31, red);
box(23, 40, 30, 25, 42, 32, "#e34734");

// Rear fuselage, tapering toward the tail.
for (let y = 26; y <= 42; y++) {
  const half = y > 35 ? 2 : 3;
  box(24 - half, y, 20, 24 + half, y, 23,
    y % 4 === 0 ? "#c32b24" : red);
  box(24 - half, y, 24, 24 + half, y, 24, "#e44532");
}
box(22, 37, 20, 26, 42, 21, "#87251f");

// Lower wing: broad red panels and a bright leading edge.
wing(5, 43, 17, 28, 18, false);
box(7, 17, 19, 41, 17, 19, cream);

// Fuselage and raised red engine cowling.
box(20, 12, 19, 28, 33, 25, darkRed);
box(21, 12, 21, 27, 31, 26, red);
box(21, 13, 26, 27, 20, 27, "#ed4835");
box(20, 18, 22, 20, 30, 24, "#a32922");
box(28, 18, 22, 28, 30, 24, "#a32922");
for (let y = 15; y <= 31; y += 4) {
  box(21, y, 25, 27, y, 25, "#ed4b35");
}

// Open cockpit, leather rim, seat and small windscreen.
box(21, 24, 26, 27, 32, 27, "#9b331f");
box(22, 25, 27, 26, 30, 27, "#253039");
box(22, 29, 27, 26, 31, 28, "#a36a38");
box(21, 24, 28, 27, 24, 28, "#c7753d");
box(21, 31, 27, 27, 31, 27, "#c7753d");
box(22, 22, 27, 26, 22, 29, "#8daaaa");
box(23, 22, 28, 25, 22, 29, "#d7dfd2");

// Exposed dark engine blocks and silver cylinder heads.
for (const x of [18, 29]) {
  box(x, 10, 19, x + 1, 17, 23, navy);
  for (const y of [11, 14, 17]) {
    box(x, y, 20, x + 1, y + 1, 22, steel);
    set(x, y, 23, "#a0a8a1");
  }
}
box(21, 10, 20, 27, 17, 25, "#b72b23");
box(21, 10, 25, 27, 16, 26, "#ea4230");
box(22, 9, 19, 26, 11, 24, "#4b5555");

// Landing gear: angled wooden supports, axle and two chunky tires.
for (const [wx, root] of [[13, 20], [35, 28]]) {
  line(root, 19, 18, wx, 15, 5, 1, wood);
  line(24, 21, 18, wx, 15, 5, 0, "#79512c");
  line(root, 17, 16, wx, 15, 7, 0, "#c18b4c");
}
line(13, 15, 5, 35, 15, 5, 0, "#747875");

for (const x0 of [11, 33]) {
  cylinder(x0, 15, 4, 4, 4, "#1a2227", "x");
  cylinder(x0 + 1, 15, 4, 3, 2, "#303b3e", "x");
}
for (const x of [11, 36]) {
  for (let y = 12; y <= 18; y++) {
    for (let z = 1; z <= 7; z++) {
      const d = Math.hypot(y - 15, z - 4);
      if (d <= 2.4) set(x, y, z, "#50565a");
      if (d <= 1.35) set(x, y, z, "#b1a58b");
    }
  }
  set(x, 15, 4, "#686a64");
}

// Interplane struts and diagonal bracing.
for (const x of [11, 16, 33, 38]) {
  for (const y of [19, 26]) {
    box(x, y, 19, x + 1, y + 1, 32, "#343d3e");
    box(x, y, 21, x, y, 29, "#687172");
  }
}
for (const x of [13, 35]) {
  line(x, 20, 20, x + 2, 25, 32, 0, "#90928a");
  line(x + 2, 26, 20, x, 19, 32, 0, "#666d6a");
}
box(22, 21, 27, 23, 22, 33, "#4a5050");
box(26, 21, 27, 27, 22, 33, "#4a5050");

// High upper wing and its roundels.
wing(3, 45, 17, 27, 34, true);
box(5, 17, 32, 43, 17, 33, cream);
box(5, 27, 32, 43, 27, 33, "#912821");

// Wooden propeller, mounted ahead of the engine.
box(23, 7, 16, 25, 8, 28, wood);
box(23, 7, 13, 25, 8, 17, "#bb8544");
box(23, 7, 27, 25, 8, 30, "#bb8544");
box(22, 7, 20, 26, 8, 22, "#a36d36");
box(22, 6, 19, 26, 7, 23, "#4c5655");
box(23, 5, 20, 25, 6, 22, "#929997");
set(24, 5, 21, "#343e3f");