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Subibaja

by fogonCC02048 blocks
SubibajaDrag to turn it
// «Subibaja» · gpt-6-sol (medium)
// A playground seesaw: a long plank along y painted in blue and red halves balanced on a yellow central pivot stand, with a handle and a seat near each end.

// Concrete footing with a dark, crisp edge.
box(17, 17, 0, 31, 31, 0, "#687372");
box(18, 18, 1, 30, 30, 1, "#d8d2bd");
for (let x = 19; x <= 29; x++)
  for (let y = 19; y <= 29; y++)
    if (rand() < 0.14) set(x, y, 1, "#e5deca");

// Two chunky yellow triangular supports, with a gap between them.
for (const x0 of [21, 26]) {
  for (let z = 2; z <= 16; z++) {
    const halfWidth = Math.floor((16 - z) * 0.43) + 1;
    for (let y = 24 - halfWidth; y <= 24 + halfWidth; y++) {
      box(x0, y, z, x0 + 1, y, z,
        y === 24 - halfWidth ? "#ffdc55" :
        y === 24 + halfWidth ? "#c99020" : "#f4ba31");
    }
  }
  box(x0 - 1, 20, 2, x0 + 2, 28, 3, "#df9d24");
}
box(22, 23, 13, 26, 25, 15, "#e8a829");
for (const x of [20, 28])
  for (const y of [20, 28])
    set(x, y, 3, "#66716b");

// Fixed axle and its visible silver ends.
box(18, 24, 17, 30, 24, 17, "#778588");
box(18, 23, 16, 19, 25, 18, "#aab5ae");
box(29, 23, 16, 30, 25, 18, "#aab5ae");
set(18, 24, 17, "#dce4db");
set(30, 24, 17, "#dce4db");

// Everything above the axle rocks as one piece.
part("plank", [24, 24, 17]);

for (let y = 4; y <= 44; y++) {
  const red = y < 24;
  box(22, y, 17, 26, y, 17, red ? "#a8333e" : "#155879");
  box(21, y, 18, 27, y, 18, red ? "#d84b52" : "#2682b1");
  box(21, y, 19, 27, y, 19, red ? "#f26468" : "#38a3ce");
  set(21, y, 19, red ? "#ff8580" : "#70c8dc");
  set(27, y, 19, red ? "#c43e4b" : "#197198");
}

// A small gold band marks the balance point.
box(21, 23, 20, 27, 24, 20, "#ffd45b");
box(22, 23, 21, 26, 24, 21, "#f5b733");

// Broad, rounded-looking seats at both ends.
for (const seat of [
  { y0: 5, y1: 10, rim: "#a72e41", cushion: "#ff7771" },
  { y0: 38, y1: 43, rim: "#145777", cushion: "#5cc5dc" }
]) {
  box(20, seat.y0, 20, 28, seat.y1, 20, seat.rim);
  box(21, seat.y0 + 1, 21, 27, seat.y1 - 1, 21, seat.cushion);
  set(20, seat.y0, 20, null);
  set(28, seat.y0, 20, null);
  set(20, seat.y1, 20, null);
  set(28, seat.y1, 20, null);
}

// Dark-green iron grab handles, one in front of each seat.
for (const y of [13, 35]) {
  for (const x of [20, 28]) {
    box(x, y, 19, x, y, 25, "#194f47");
    set(x, y, 25, "#3c8772");
  }
  box(20, y, 25, 28, y, 25, "#24705f");
  box(22, y, 26, 26, y, 26, "#50a586");
  for (const x of [20, 28]) set(x, y, 20, "#f3c444");
}

// Tiny gold pinstripes give the painted plank a toy-like finish.
for (const y of [16, 19, 29, 32])
  box(23, y, 20, 25, y, 20, "#f7d168");

animate("plank", { type: "swing", axis: "x", speed: 2, amplitude: 0.3 });