60x60 Factorio Screen made of lamps

factorioScreen.js

const Blueprint = require('factorio-blueprint');

const inputs = Object.keys(Blueprint.getEntityData()).filter(key => !Blueprint.getEntityData()[key].combinator).slice(0, 60);
const carries = Object.keys(Blueprint.getEntityData()).filter(key => !Blueprint.getEntityData()[key].combinator).slice(60, 90);
const bp = new Blueprint();

for (let i = 0; i < 2; i++) {
  const start = i == 0 ? 0 : 59;
  const dir = i == 0 ? 1 : -1;
  let prevCombinator = null;
  let prevConstant = null;
  for (let y = 0; y < 60; y++) {
    const combinatorX = start - (y % 2 == 0 ? 3 : 4)*dir
    let prev = null;
    let first = null;
    for (let x = 0; x < 30; x++) {
      const Y = y;
      const X = start + dir*x;
      if (X >= 15 && Y >= 15 && (X - 15) % 28 < 2 && (Y - 15) % 28 < 2) continue;
      const ent = bp.createEntity('small_lamp', { x: X, y: Y })
        .setCondition({
          left: carries[x],
          operator: '<',
          right: 0
        });
      if (prev) ent.connect(prev, null, null, 'red');
      else first = ent;
      prev = ent;
    }
    const combinatorEnt = bp.createEntity('arithmetic-combinator', { x: combinatorX+0.5, y: y })
      .setCondition({
        left: 'signal_each',
        operator: '*',
        right: inputs[y],
        out: 'signal_each'
      })
      .connect(first, 'out', null, 'red');
    if (prevCombinator) combinatorEnt.connect(prevCombinator, 'in', 'in', 'red');
    prevCombinator = combinatorEnt;

    if (y >= 58) {
      const constantEnt = bp.createEntity('constant_combinator', { x: start - 6*dir, y: y })
      for (let j = 0; j < 15; j++) {
        let index = j+(y-58)*15;
        constantEnt.setFilter(j+1, carries[index], Math.abs(2 << (index+1)));
      }
      if (y == 59)
        constantEnt.connect(prevConstant, null, null, 'red')
                   .connect(prevCombinator, null, 'in', 'red');
      else
        prevConstant = constantEnt;
    }
  }
}

bp.center();
//console.log(bp.luaString());
console.log(bp.encode());