app.SetBlock(x, y, z, index);

const block = CreateBlock(app.parentElement);
block.SetBlock(index);
block.SetPosition(x, y, z); // position inside grid mapped blocks

app.blocks.count = { x: 64, y: 64, z: 64 };

for (let z = 0; z < cz; z++) {
  for (let y = 0; y < cy; y++) {
    for (let x = 0; x < cx; x++) {
      const dx = x - cx * 0.5;
      const dy = y - cy * 0.5;
      const dz = z - cz * 0.5;
      const avg = (cx + cy + cz) / 3 * 0.5;
      const distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
      app.SetBlock(
        x, y, z, 
        (distance < avg ? 2 + Math.floor(Math.random() * 0) : 0)
      );
    }
  }
}