/**
 * Farm Tractor — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 3,484 · Size (W × H × D): 2.42 × 2.72 × 3.96 m
 *
 * Usage:
 *   import { createTractor } from './tractor.js';
 *   
 *   const model = createTractor();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

// Revolve a 2D profile [[radius, y], ...] around the Y axis.
function lathe(points, segments, phiStart = 0, phiLength = Math.PI * 2) {
  return new THREE.LatheGeometry(points.map(([x, y]) => new THREE.Vector2(x, y)), segments, phiStart, phiLength);
}

// Extrude a 2D outline along Z (centered). bevel = [thickness, size, segments].
function extrude(outline, depth, holes = [], bevel = null) {
  const shape = new THREE.Shape(outline.map(([x, y]) => new THREE.Vector2(x, y)));
  for (const hole of holes) shape.holes.push(new THREE.Path(hole.map(([x, y]) => new THREE.Vector2(x, y))));
  const options = bevel
    ? { depth, bevelEnabled: true, bevelThickness: bevel[0], bevelSize: bevel[1], bevelSegments: bevel[2] }
    : { depth, bevelEnabled: false };
  return new THREE.ExtrudeGeometry(shape, options).translate(0, 0, -depth / 2);
}

export function createTractor() {
  const root = new THREE.Group();
  root.name = 'Tractor';

  // Materials
  const paintMat = new THREE.MeshStandardMaterial({ name: 'paint', color: 0x3f8b3a, roughness: 0.5, metalness: 0.1, flatShading: true });
  const rimMat = new THREE.MeshStandardMaterial({ name: 'rim', color: 0xf2c21b, roughness: 0.5, metalness: 0.15, flatShading: true });
  const tireMat = new THREE.MeshStandardMaterial({ name: 'tire', color: 0x26272a, roughness: 0.9, flatShading: true });
  const trimMat = new THREE.MeshStandardMaterial({ name: 'trim', color: 0x34363b, roughness: 0.75, flatShading: true });
  const metalMat = new THREE.MeshStandardMaterial({ name: 'metal', color: 0x8d9298, roughness: 0.4, metalness: 0.6, flatShading: true });
  const glassMat = new THREE.MeshStandardMaterial({ name: 'glass', color: 0x2a3644, roughness: 0.2, metalness: 0.3, flatShading: true });
  const seatMat = new THREE.MeshStandardMaterial({ name: 'seat', color: 0xe4e2da, roughness: 0.7, flatShading: true });
  const headlightMat = new THREE.MeshStandardMaterial({ name: 'headlight', color: 0xfff4d6, roughness: 0.3, emissive: 0xffe2a0, emissiveIntensity: 0.9, flatShading: true });
  const taillightMat = new THREE.MeshStandardMaterial({ name: 'taillight', color: 0xd81e28, roughness: 0.3, emissive: 0xff2020, emissiveIntensity: 0.7, flatShading: true });

  // Shared geometries
  const latheGeo = lathe([[0.22, -0.08], [0.22, -0.12], [0.363, -0.12], [0.4, -0.0672], [0.4, -0.07], [0.418, -0.04], [0.418, 0.04], [0.4, 0.07], [0.4, 0.0672], [0.363, 0.12], [0.22, 0.12], [0.22, 0.08]], 12);
  const cylinderGeo = new THREE.CylinderGeometry(0.22, 0.22, 0.16, 14);
  const cylinderGeo2 = new THREE.CylinderGeometry(0.121, 0.187, 0.05, 12);
  const cylinderGeo3 = new THREE.CylinderGeometry(0.0484, 0.066, 0.12, 8);
  const latheGeo2 = lathe([[0.4144, -0.19], [0.4144, -0.23], [0.67, -0.23], [0.74, -0.13], [0.74, 0.13], [0.67, 0.23], [0.4144, 0.23], [0.4144, 0.19]], 16);
  const cylinderGeo4 = new THREE.CylinderGeometry(0.4144, 0.4144, 0.38, 14);
  const cylinderGeo5 = new THREE.CylinderGeometry(0.2279, 0.3522, 0.05, 12);
  const cylinderGeo6 = new THREE.CylinderGeometry(0.0912, 0.1243, 0.12, 8);
  const boxGeo = new THREE.BoxGeometry(0.2495, 0.08, 0.075);
  const boxGeo2 = new THREE.BoxGeometry(0.56, 0.025, 0.02);
  const boxGeo3 = new THREE.BoxGeometry(0.03, 0.1, 1.3);
  const boxGeo4 = new THREE.BoxGeometry(0.12, 0.09, 0.05);
  const boxGeo5 = new THREE.BoxGeometry(0.16, 0.36, 0.18);
  const cylinderGeo7 = new THREE.CylinderGeometry(0.11, 0.13, 0.4, 8);
  const extrudeGeo = extrude([[0.8716, 0.3521], [0.7507, 0.5657], [0.5787, 0.7407], [0.3673, 0.8653], [0.1308, 0.9309], [-0.1146, 0.933], [-0.3521, 0.8716], [-0.5657, 0.7507], [-0.7407, 0.5787], [-0.8653, 0.3673], [-0.9309, 0.1308], [-0.8813, 0.1239], [-0.8192, 0.3478], [-0.7013, 0.5479], [-0.5356, 0.7108], [-0.3334, 0.8252], [-0.1085, 0.8834], [0.1239, 0.8813], [0.3478, 0.8192], [0.5479, 0.7013], [0.7108, 0.5356], [0.8252, 0.3334]], 0.52);
  const boxGeo6 = new THREE.BoxGeometry(0.1, 0.07, 0.04);
  const boxGeo7 = new THREE.BoxGeometry(0.08, 0.6, 0.06);
  const boxGeo8 = new THREE.BoxGeometry(0.26, 0.04, 0.22);
  const boxGeo9 = new THREE.BoxGeometry(0.04, 0.5, 0.04);
  const boxGeo10 = new THREE.BoxGeometry(0.07, 1.42, 0.07);
  const boxGeo11 = new THREE.BoxGeometry(0.1, 0.08, 0.06);
  const boxGeo12 = new THREE.BoxGeometry(0.12, 0.06, 0.02);
  const boxGeo13 = new THREE.BoxGeometry(1.18, 1.37, 0.02);
  const boxGeo14 = new THREE.BoxGeometry(0.02, 1.37, 1.22);
  const boxGeo15 = new THREE.BoxGeometry(0.04, 0.03, 0.12);
  const cylinderGeo8 = new THREE.CylinderGeometry(0.035, 0.035, 0.5071, 6);

  // Parts
  const wheels = new THREE.Group();
  wheels.name = 'wheels';
  root.add(wheels);
  const wheelFL = new THREE.Group();
  wheelFL.name = 'wheelFL';
  wheelFL.position.set(0.7, 0.418, 1.35);
  wheels.add(wheelFL);
  const tire = new THREE.Mesh(latheGeo, tireMat);
  tire.name = 'tire';
  tire.rotation.set(0, 0, deg(90));
  wheelFL.add(tire);
  const rim = new THREE.Mesh(cylinderGeo, rimMat);
  rim.name = 'rim';
  rim.rotation.set(0, 0, deg(90));
  wheelFL.add(rim);
  const disc = new THREE.Mesh(cylinderGeo2, rimMat);
  disc.name = 'disc';
  disc.position.set(0.02, 0, 0);
  disc.rotation.set(0, 0, deg(-90));
  wheelFL.add(disc);
  const hub = new THREE.Mesh(cylinderGeo3, metalMat);
  hub.name = 'hub';
  hub.position.set(0.06, 0, 0);
  hub.rotation.set(0, 0, deg(-90));
  wheelFL.add(hub);
  const wheelFR = new THREE.Group();
  wheelFR.name = 'wheelFR';
  wheelFR.position.set(-0.7, 0.418, 1.35);
  wheels.add(wheelFR);
  const tire2 = new THREE.Mesh(latheGeo, tireMat);
  tire2.name = 'tire';
  tire2.rotation.set(0, 0, deg(90));
  wheelFR.add(tire2);
  const rim2 = new THREE.Mesh(cylinderGeo, rimMat);
  rim2.name = 'rim';
  rim2.rotation.set(0, 0, deg(90));
  wheelFR.add(rim2);
  const disc2 = new THREE.Mesh(cylinderGeo2, rimMat);
  disc2.name = 'disc';
  disc2.position.set(-0.02, 0, 0);
  disc2.rotation.set(0, 0, deg(90));
  wheelFR.add(disc2);
  const hub2 = new THREE.Mesh(cylinderGeo3, metalMat);
  hub2.name = 'hub';
  hub2.position.set(-0.06, 0, 0);
  hub2.rotation.set(0, 0, deg(90));
  wheelFR.add(hub2);
  const wheelRL = new THREE.Group();
  wheelRL.name = 'wheelRL';
  wheelRL.position.set(0.95, 0.8059, -0.75);
  wheels.add(wheelRL);
  const tire3 = new THREE.Mesh(latheGeo2, tireMat);
  tire3.name = 'tire';
  tire3.rotation.set(0, 0, deg(90));
  wheelRL.add(tire3);
  const rim3 = new THREE.Mesh(cylinderGeo4, rimMat);
  rim3.name = 'rim';
  rim3.rotation.set(0, 0, deg(90));
  wheelRL.add(rim3);
  const disc3 = new THREE.Mesh(cylinderGeo5, rimMat);
  disc3.name = 'disc';
  disc3.position.set(0.13, 0, 0);
  disc3.rotation.set(0, 0, deg(-90));
  wheelRL.add(disc3);
  const hub3 = new THREE.Mesh(cylinderGeo6, metalMat);
  hub3.name = 'hub';
  hub3.position.set(0.17, 0, 0);
  hub3.rotation.set(0, 0, deg(-90));
  wheelRL.add(hub3);
  const box17 = new THREE.Mesh(boxGeo, tireMat);
  box17.position.set(0.1228, -0.76, 0.0767);
  box17.rotation.set(deg(180), deg(32), 0);
  wheelRL.add(box17);
  const box18 = new THREE.Mesh(boxGeo, tireMat);
  box18.position.set(-0.1228, -0.76, 0.0767);
  box18.rotation.set(0, deg(32), deg(-180));
  wheelRL.add(box18);
  const box19 = new THREE.Mesh(boxGeo, tireMat);
  box19.position.set(0.1228, -0.6728, 0.3617);
  box19.rotation.set(deg(157.5), deg(32), 0);
  wheelRL.add(box19);
  const box20 = new THREE.Mesh(boxGeo, tireMat);
  box20.position.set(-0.1228, -0.6728, 0.3617);
  box20.rotation.set(deg(-22.5), deg(32), deg(-180));
  wheelRL.add(box20);
  const box21 = new THREE.Mesh(boxGeo, tireMat);
  box21.position.set(0.1228, -0.4832, 0.5916);
  box21.rotation.set(deg(135), deg(32), 0);
  wheelRL.add(box21);
  const box22 = new THREE.Mesh(boxGeo, tireMat);
  box22.position.set(-0.1228, -0.4832, 0.5916);
  box22.rotation.set(deg(-45), deg(32), deg(180));
  wheelRL.add(box22);
  const box23 = new THREE.Mesh(boxGeo, tireMat);
  box23.position.set(0.1228, -0.22, 0.7315);
  box23.rotation.set(deg(112.5), deg(32), 0);
  wheelRL.add(box23);
  const box24 = new THREE.Mesh(boxGeo, tireMat);
  box24.position.set(-0.1228, -0.22, 0.7315);
  box24.rotation.set(deg(-67.5), deg(32), deg(180));
  wheelRL.add(box24);
  const box25 = new THREE.Mesh(boxGeo, tireMat);
  box25.position.set(0.1228, 0.0767, 0.76);
  box25.rotation.set(deg(90), deg(32), 0);
  wheelRL.add(box25);
  const box26 = new THREE.Mesh(boxGeo, tireMat);
  box26.position.set(-0.1228, 0.0767, 0.76);
  box26.rotation.set(deg(-90), deg(32), deg(-180));
  wheelRL.add(box26);
  const box27 = new THREE.Mesh(boxGeo, tireMat);
  box27.position.set(0.1228, 0.3617, 0.6728);
  box27.rotation.set(deg(67.5), deg(32), 0);
  wheelRL.add(box27);
  const box28 = new THREE.Mesh(boxGeo, tireMat);
  box28.position.set(-0.1228, 0.3617, 0.6728);
  box28.rotation.set(deg(-112.5), deg(32), deg(-180));
  wheelRL.add(box28);
  const box29 = new THREE.Mesh(boxGeo, tireMat);
  box29.position.set(0.1228, 0.5916, 0.4832);
  box29.rotation.set(deg(45), deg(32), 0);
  wheelRL.add(box29);
  const box30 = new THREE.Mesh(boxGeo, tireMat);
  box30.position.set(-0.1228, 0.5916, 0.4832);
  box30.rotation.set(deg(-135), deg(32), deg(-180));
  wheelRL.add(box30);
  const box31 = new THREE.Mesh(boxGeo, tireMat);
  box31.position.set(0.1228, 0.7315, 0.22);
  box31.rotation.set(deg(22.5), deg(32), 0);
  wheelRL.add(box31);
  const box32 = new THREE.Mesh(boxGeo, tireMat);
  box32.position.set(-0.1228, 0.7315, 0.22);
  box32.rotation.set(deg(-157.5), deg(32), deg(180));
  wheelRL.add(box32);
  const box33 = new THREE.Mesh(boxGeo, tireMat);
  box33.position.set(0.1228, 0.76, -0.0767);
  box33.rotation.set(0, deg(32), 0);
  wheelRL.add(box33);
  const box34 = new THREE.Mesh(boxGeo, tireMat);
  box34.position.set(-0.1228, 0.76, -0.0767);
  box34.rotation.set(deg(-180), deg(32), deg(-180));
  wheelRL.add(box34);
  const box35 = new THREE.Mesh(boxGeo, tireMat);
  box35.position.set(0.1228, 0.6728, -0.3617);
  box35.rotation.set(deg(-22.5), deg(32), 0);
  wheelRL.add(box35);
  const box36 = new THREE.Mesh(boxGeo, tireMat);
  box36.position.set(-0.1228, 0.6728, -0.3617);
  box36.rotation.set(deg(157.5), deg(32), deg(-180));
  wheelRL.add(box36);
  const box37 = new THREE.Mesh(boxGeo, tireMat);
  box37.position.set(0.1228, 0.4832, -0.5916);
  box37.rotation.set(deg(-45), deg(32), 0);
  wheelRL.add(box37);
  const box38 = new THREE.Mesh(boxGeo, tireMat);
  box38.position.set(-0.1228, 0.4832, -0.5916);
  box38.rotation.set(deg(135), deg(32), deg(180));
  wheelRL.add(box38);
  const box39 = new THREE.Mesh(boxGeo, tireMat);
  box39.position.set(0.1228, 0.22, -0.7315);
  box39.rotation.set(deg(-67.5), deg(32), 0);
  wheelRL.add(box39);
  const box40 = new THREE.Mesh(boxGeo, tireMat);
  box40.position.set(-0.1228, 0.22, -0.7315);
  box40.rotation.set(deg(112.5), deg(32), deg(-180));
  wheelRL.add(box40);
  const box41 = new THREE.Mesh(boxGeo, tireMat);
  box41.position.set(0.1228, -0.0767, -0.76);
  box41.rotation.set(deg(-90), deg(32), 0);
  wheelRL.add(box41);
  const box42 = new THREE.Mesh(boxGeo, tireMat);
  box42.position.set(-0.1228, -0.0767, -0.76);
  box42.rotation.set(deg(90), deg(32), deg(-180));
  wheelRL.add(box42);
  const box43 = new THREE.Mesh(boxGeo, tireMat);
  box43.position.set(0.1228, -0.3617, -0.6728);
  box43.rotation.set(deg(-112.5), deg(32), 0);
  wheelRL.add(box43);
  const box44 = new THREE.Mesh(boxGeo, tireMat);
  box44.position.set(-0.1228, -0.3617, -0.6728);
  box44.rotation.set(deg(67.5), deg(32), deg(-180));
  wheelRL.add(box44);
  const box45 = new THREE.Mesh(boxGeo, tireMat);
  box45.position.set(0.1228, -0.5916, -0.4832);
  box45.rotation.set(deg(-135), deg(32), 0);
  wheelRL.add(box45);
  const box46 = new THREE.Mesh(boxGeo, tireMat);
  box46.position.set(-0.1228, -0.5916, -0.4832);
  box46.rotation.set(deg(45), deg(32), deg(-180));
  wheelRL.add(box46);
  const box47 = new THREE.Mesh(boxGeo, tireMat);
  box47.position.set(0.1228, -0.7315, -0.22);
  box47.rotation.set(deg(-157.5), deg(32), 0);
  wheelRL.add(box47);
  const box48 = new THREE.Mesh(boxGeo, tireMat);
  box48.position.set(-0.1228, -0.7315, -0.22);
  box48.rotation.set(deg(22.5), deg(32), deg(-180));
  wheelRL.add(box48);
  const wheelRR = new THREE.Group();
  wheelRR.name = 'wheelRR';
  wheelRR.position.set(-0.95, 0.8059, -0.75);
  wheels.add(wheelRR);
  const tire4 = new THREE.Mesh(latheGeo2, tireMat);
  tire4.name = 'tire';
  tire4.rotation.set(0, 0, deg(90));
  wheelRR.add(tire4);
  const rim4 = new THREE.Mesh(cylinderGeo4, rimMat);
  rim4.name = 'rim';
  rim4.rotation.set(0, 0, deg(90));
  wheelRR.add(rim4);
  const disc4 = new THREE.Mesh(cylinderGeo5, rimMat);
  disc4.name = 'disc';
  disc4.position.set(-0.13, 0, 0);
  disc4.rotation.set(0, 0, deg(90));
  wheelRR.add(disc4);
  const hub4 = new THREE.Mesh(cylinderGeo6, metalMat);
  hub4.name = 'hub';
  hub4.position.set(-0.17, 0, 0);
  hub4.rotation.set(0, 0, deg(90));
  wheelRR.add(hub4);
  const box54 = new THREE.Mesh(boxGeo, tireMat);
  box54.position.set(0.1228, -0.76, 0.0767);
  box54.rotation.set(deg(180), deg(32), 0);
  wheelRR.add(box54);
  const box55 = new THREE.Mesh(boxGeo, tireMat);
  box55.position.set(-0.1228, -0.76, 0.0767);
  box55.rotation.set(0, deg(32), deg(-180));
  wheelRR.add(box55);
  const box56 = new THREE.Mesh(boxGeo, tireMat);
  box56.position.set(0.1228, -0.6728, 0.3617);
  box56.rotation.set(deg(157.5), deg(32), 0);
  wheelRR.add(box56);
  const box57 = new THREE.Mesh(boxGeo, tireMat);
  box57.position.set(-0.1228, -0.6728, 0.3617);
  box57.rotation.set(deg(-22.5), deg(32), deg(-180));
  wheelRR.add(box57);
  const box58 = new THREE.Mesh(boxGeo, tireMat);
  box58.position.set(0.1228, -0.4832, 0.5916);
  box58.rotation.set(deg(135), deg(32), 0);
  wheelRR.add(box58);
  const box59 = new THREE.Mesh(boxGeo, tireMat);
  box59.position.set(-0.1228, -0.4832, 0.5916);
  box59.rotation.set(deg(-45), deg(32), deg(180));
  wheelRR.add(box59);
  const box60 = new THREE.Mesh(boxGeo, tireMat);
  box60.position.set(0.1228, -0.22, 0.7315);
  box60.rotation.set(deg(112.5), deg(32), 0);
  wheelRR.add(box60);
  const box61 = new THREE.Mesh(boxGeo, tireMat);
  box61.position.set(-0.1228, -0.22, 0.7315);
  box61.rotation.set(deg(-67.5), deg(32), deg(180));
  wheelRR.add(box61);
  const box62 = new THREE.Mesh(boxGeo, tireMat);
  box62.position.set(0.1228, 0.0767, 0.76);
  box62.rotation.set(deg(90), deg(32), 0);
  wheelRR.add(box62);
  const box63 = new THREE.Mesh(boxGeo, tireMat);
  box63.position.set(-0.1228, 0.0767, 0.76);
  box63.rotation.set(deg(-90), deg(32), deg(-180));
  wheelRR.add(box63);
  const box64 = new THREE.Mesh(boxGeo, tireMat);
  box64.position.set(0.1228, 0.3617, 0.6728);
  box64.rotation.set(deg(67.5), deg(32), 0);
  wheelRR.add(box64);
  const box65 = new THREE.Mesh(boxGeo, tireMat);
  box65.position.set(-0.1228, 0.3617, 0.6728);
  box65.rotation.set(deg(-112.5), deg(32), deg(-180));
  wheelRR.add(box65);
  const box66 = new THREE.Mesh(boxGeo, tireMat);
  box66.position.set(0.1228, 0.5916, 0.4832);
  box66.rotation.set(deg(45), deg(32), 0);
  wheelRR.add(box66);
  const box67 = new THREE.Mesh(boxGeo, tireMat);
  box67.position.set(-0.1228, 0.5916, 0.4832);
  box67.rotation.set(deg(-135), deg(32), deg(-180));
  wheelRR.add(box67);
  const box68 = new THREE.Mesh(boxGeo, tireMat);
  box68.position.set(0.1228, 0.7315, 0.22);
  box68.rotation.set(deg(22.5), deg(32), 0);
  wheelRR.add(box68);
  const box69 = new THREE.Mesh(boxGeo, tireMat);
  box69.position.set(-0.1228, 0.7315, 0.22);
  box69.rotation.set(deg(-157.5), deg(32), deg(180));
  wheelRR.add(box69);
  const box70 = new THREE.Mesh(boxGeo, tireMat);
  box70.position.set(0.1228, 0.76, -0.0767);
  box70.rotation.set(0, deg(32), 0);
  wheelRR.add(box70);
  const box71 = new THREE.Mesh(boxGeo, tireMat);
  box71.position.set(-0.1228, 0.76, -0.0767);
  box71.rotation.set(deg(-180), deg(32), deg(-180));
  wheelRR.add(box71);
  const box72 = new THREE.Mesh(boxGeo, tireMat);
  box72.position.set(0.1228, 0.6728, -0.3617);
  box72.rotation.set(deg(-22.5), deg(32), 0);
  wheelRR.add(box72);
  const box73 = new THREE.Mesh(boxGeo, tireMat);
  box73.position.set(-0.1228, 0.6728, -0.3617);
  box73.rotation.set(deg(157.5), deg(32), deg(-180));
  wheelRR.add(box73);
  const box74 = new THREE.Mesh(boxGeo, tireMat);
  box74.position.set(0.1228, 0.4832, -0.5916);
  box74.rotation.set(deg(-45), deg(32), 0);
  wheelRR.add(box74);
  const box75 = new THREE.Mesh(boxGeo, tireMat);
  box75.position.set(-0.1228, 0.4832, -0.5916);
  box75.rotation.set(deg(135), deg(32), deg(180));
  wheelRR.add(box75);
  const box76 = new THREE.Mesh(boxGeo, tireMat);
  box76.position.set(0.1228, 0.22, -0.7315);
  box76.rotation.set(deg(-67.5), deg(32), 0);
  wheelRR.add(box76);
  const box77 = new THREE.Mesh(boxGeo, tireMat);
  box77.position.set(-0.1228, 0.22, -0.7315);
  box77.rotation.set(deg(112.5), deg(32), deg(-180));
  wheelRR.add(box77);
  const box78 = new THREE.Mesh(boxGeo, tireMat);
  box78.position.set(0.1228, -0.0767, -0.76);
  box78.rotation.set(deg(-90), deg(32), 0);
  wheelRR.add(box78);
  const box79 = new THREE.Mesh(boxGeo, tireMat);
  box79.position.set(-0.1228, -0.0767, -0.76);
  box79.rotation.set(deg(90), deg(32), deg(-180));
  wheelRR.add(box79);
  const box80 = new THREE.Mesh(boxGeo, tireMat);
  box80.position.set(0.1228, -0.3617, -0.6728);
  box80.rotation.set(deg(-112.5), deg(32), 0);
  wheelRR.add(box80);
  const box81 = new THREE.Mesh(boxGeo, tireMat);
  box81.position.set(-0.1228, -0.3617, -0.6728);
  box81.rotation.set(deg(67.5), deg(32), deg(-180));
  wheelRR.add(box81);
  const box82 = new THREE.Mesh(boxGeo, tireMat);
  box82.position.set(0.1228, -0.5916, -0.4832);
  box82.rotation.set(deg(-135), deg(32), 0);
  wheelRR.add(box82);
  const box83 = new THREE.Mesh(boxGeo, tireMat);
  box83.position.set(-0.1228, -0.5916, -0.4832);
  box83.rotation.set(deg(45), deg(32), deg(-180));
  wheelRR.add(box83);
  const box84 = new THREE.Mesh(boxGeo, tireMat);
  box84.position.set(0.1228, -0.7315, -0.22);
  box84.rotation.set(deg(-157.5), deg(32), 0);
  wheelRR.add(box84);
  const box85 = new THREE.Mesh(boxGeo, tireMat);
  box85.position.set(-0.1228, -0.7315, -0.22);
  box85.rotation.set(deg(22.5), deg(32), deg(-180));
  wheelRR.add(box85);
  const body = new THREE.Group();
  body.name = 'body';
  root.add(body);
  const hood = new THREE.Mesh(extrude([[-0.05, 0.82], [-0.05, 1.46], [1.55, 1.44], [1.84, 1.3], [1.86, 0.82]], 0.66, [], [0.03, 0.03, 1]), paintMat);
  hood.name = 'hood';
  hood.rotation.set(0, deg(-90), 0);
  body.add(hood);
  const grille = new THREE.Mesh(new THREE.BoxGeometry(0.62, 0.38, 0.03), trimMat);
  grille.name = 'grille';
  grille.position.set(0, 1.03, 1.9);
  body.add(grille);
  const box89 = new THREE.Mesh(boxGeo2, metalMat);
  box89.position.set(0, 0.89, 1.915);
  body.add(box89);
  const box90 = new THREE.Mesh(boxGeo2, metalMat);
  box90.position.set(0, 0.98, 1.915);
  body.add(box90);
  const box91 = new THREE.Mesh(boxGeo2, metalMat);
  box91.position.set(0, 1.07, 1.915);
  body.add(box91);
  const box92 = new THREE.Mesh(boxGeo2, metalMat);
  box92.position.set(0, 1.16, 1.915);
  body.add(box92);
  const ventL = new THREE.Mesh(boxGeo3, trimMat);
  ventL.name = 'ventL';
  ventL.position.set(0.37, 1.32, 0.85);
  body.add(ventL);
  const headlightL = new THREE.Mesh(boxGeo4, headlightMat);
  headlightL.name = 'headlightL';
  headlightL.position.set(0.26, 1.33, 1.86);
  body.add(headlightL);
  const ventR = new THREE.Mesh(boxGeo3, trimMat);
  ventR.name = 'ventR';
  ventR.position.set(-0.37, 1.32, 0.85);
  body.add(ventR);
  const headlightR = new THREE.Mesh(boxGeo4, headlightMat);
  headlightR.name = 'headlightR';
  headlightR.position.set(-0.26, 1.33, 1.86);
  body.add(headlightR);
  const engine = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.26, 1.7), trimMat);
  engine.name = 'engine';
  engine.position.set(0, 0.7, 0.95);
  body.add(engine);
  const axlePivot = new THREE.Mesh(new THREE.BoxGeometry(0.22, 0.2, 0.3), trimMat);
  axlePivot.name = 'axlePivot';
  axlePivot.position.set(0, 0.55, 1.35);
  body.add(axlePivot);
  const frontAxle = new THREE.Mesh(new THREE.BoxGeometry(1.22, 0.1, 0.12), trimMat);
  frontAxle.name = 'frontAxle';
  frontAxle.position.set(0, 0.418, 1.35);
  body.add(frontAxle);
  const weightBracket = new THREE.Mesh(new THREE.BoxGeometry(0.3, 0.22, 0.2), trimMat);
  weightBracket.name = 'weightBracket';
  weightBracket.position.set(0, 0.66, 2);
  body.add(weightBracket);
  const weight1 = new THREE.Mesh(boxGeo5, paintMat);
  weight1.name = 'weight1';
  weight1.position.set(-0.34, 0.82, 2.12);
  body.add(weight1);
  const weight2 = new THREE.Mesh(boxGeo5, paintMat);
  weight2.name = 'weight2';
  weight2.position.set(-0.17, 0.82, 2.12);
  body.add(weight2);
  const weight3 = new THREE.Mesh(boxGeo5, paintMat);
  weight3.name = 'weight3';
  weight3.position.set(0, 0.82, 2.12);
  body.add(weight3);
  const weight4 = new THREE.Mesh(boxGeo5, paintMat);
  weight4.name = 'weight4';
  weight4.position.set(0.17, 0.82, 2.12);
  body.add(weight4);
  const weight5 = new THREE.Mesh(boxGeo5, paintMat);
  weight5.name = 'weight5';
  weight5.position.set(0.34, 0.82, 2.12);
  body.add(weight5);
  const box106 = new THREE.Mesh(new THREE.BoxGeometry(0.9, 0.06, 0.08), trimMat);
  box106.position.set(0, 1.02, 2.12);
  body.add(box106);
  const transmission = new THREE.Mesh(new THREE.BoxGeometry(0.8, 0.6, 1.1), paintMat);
  transmission.name = 'transmission';
  transmission.position.set(0, 0.8059, -0.75);
  body.add(transmission);
  const cylinder108 = new THREE.Mesh(cylinderGeo7, trimMat);
  cylinder108.position.set(0.58, 0.8059, -0.75);
  cylinder108.rotation.set(0, 0, deg(90));
  body.add(cylinder108);
  const cylinder109 = new THREE.Mesh(cylinderGeo7, trimMat);
  cylinder109.position.set(-0.58, 0.8059, -0.75);
  cylinder109.rotation.set(0, 0, deg(90));
  body.add(cylinder109);
  const platform = new THREE.Mesh(new THREE.BoxGeometry(1.3, 0.08, 1.4), trimMat);
  platform.name = 'platform';
  platform.position.set(0, 1.12, -0.6);
  body.add(platform);
  const fenderL = new THREE.Mesh(extrudeGeo, paintMat);
  fenderL.name = 'fenderL';
  fenderL.position.set(0.95, 0.8059, -0.75);
  fenderL.rotation.set(0, deg(-90), 0);
  body.add(fenderL);
  const taillightL = new THREE.Mesh(boxGeo6, taillightMat);
  taillightL.name = 'taillightL';
  taillightL.position.set(1.07, 0.9859, -1.7);
  body.add(taillightL);
  const box113 = new THREE.Mesh(boxGeo7, trimMat);
  box113.position.set(0.66, 1.1259, -0.75);
  body.add(box113);
  const box114 = new THREE.Mesh(boxGeo8, metalMat);
  box114.position.set(0.7, 0.62, 0.2);
  body.add(box114);
  const box115 = new THREE.Mesh(boxGeo8, metalMat);
  box115.position.set(0.7, 0.9, 0.12);
  body.add(box115);
  const box116 = new THREE.Mesh(boxGeo9, trimMat);
  box116.position.set(0.82, 0.86, 0.16);
  body.add(box116);
  const fenderR = new THREE.Mesh(extrudeGeo, paintMat);
  fenderR.name = 'fenderR';
  fenderR.position.set(-0.95, 0.8059, -0.75);
  fenderR.rotation.set(0, deg(-90), 0);
  body.add(fenderR);
  const taillightR = new THREE.Mesh(boxGeo6, taillightMat);
  taillightR.name = 'taillightR';
  taillightR.position.set(-1.07, 0.9859, -1.7);
  body.add(taillightR);
  const box119 = new THREE.Mesh(boxGeo7, trimMat);
  box119.position.set(-0.66, 1.1259, -0.75);
  body.add(box119);
  const box120 = new THREE.Mesh(boxGeo8, metalMat);
  box120.position.set(-0.7, 0.62, 0.2);
  body.add(box120);
  const box121 = new THREE.Mesh(boxGeo8, metalMat);
  box121.position.set(-0.7, 0.9, 0.12);
  body.add(box121);
  const box122 = new THREE.Mesh(boxGeo9, trimMat);
  box122.position.set(-0.82, 0.86, 0.16);
  body.add(box122);
  const box123 = new THREE.Mesh(boxGeo10, trimMat);
  box123.position.set(0.62, 1.87, -1.3);
  body.add(box123);
  const box124 = new THREE.Mesh(boxGeo10, trimMat);
  box124.position.set(0.62, 1.87, -0.02);
  body.add(box124);
  const box125 = new THREE.Mesh(boxGeo10, trimMat);
  box125.position.set(-0.62, 1.87, -1.3);
  body.add(box125);
  const box126 = new THREE.Mesh(boxGeo10, trimMat);
  box126.position.set(-0.62, 1.87, -0.02);
  body.add(box126);
  const roof = new THREE.Mesh(new THREE.BoxGeometry(1.54, 0.1, 1.64), paintMat);
  roof.name = 'roof';
  roof.position.set(0, 2.63, -0.66);
  body.add(roof);
  const roofTop = new THREE.Mesh(new THREE.BoxGeometry(1.34, 0.04, 1.44), seatMat);
  roofTop.name = 'roofTop';
  roofTop.position.set(0, 2.7, -0.66);
  body.add(roofTop);
  const box129 = new THREE.Mesh(boxGeo11, trimMat);
  box129.position.set(0.4, 2.56, 0.17);
  body.add(box129);
  const workLightL = new THREE.Mesh(boxGeo12, headlightMat);
  workLightL.name = 'workLightL';
  workLightL.position.set(0.4, 2.56, 0.205);
  body.add(workLightL);
  const box131 = new THREE.Mesh(boxGeo11, trimMat);
  box131.position.set(-0.4, 2.56, 0.17);
  body.add(box131);
  const workLightR = new THREE.Mesh(boxGeo12, headlightMat);
  workLightR.name = 'workLightR';
  workLightR.position.set(-0.4, 2.56, 0.205);
  body.add(workLightR);
  const frontGlass = new THREE.Mesh(boxGeo13, glassMat);
  frontGlass.name = 'frontGlass';
  frontGlass.position.set(0, 1.865, -0.02);
  body.add(frontGlass);
  const rearGlass = new THREE.Mesh(boxGeo13, glassMat);
  rearGlass.name = 'rearGlass';
  rearGlass.position.set(0, 1.865, -1.3);
  body.add(rearGlass);
  const doorL = new THREE.Mesh(boxGeo14, glassMat);
  doorL.name = 'doorL';
  doorL.position.set(0.62, 1.865, -0.66);
  body.add(doorL);
  const box136 = new THREE.Mesh(boxGeo15, trimMat);
  box136.position.set(0.64, 1.85, -0.25);
  body.add(box136);
  const doorR = new THREE.Mesh(boxGeo14, glassMat);
  doorR.name = 'doorR';
  doorR.position.set(-0.62, 1.865, -0.66);
  body.add(doorR);
  const box138 = new THREE.Mesh(boxGeo15, trimMat);
  box138.position.set(-0.64, 1.85, -0.25);
  body.add(box138);
  const dash = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.26, 0.24), paintMat);
  dash.name = 'dash';
  dash.position.set(0, 1.29, -0.17);
  body.add(dash);
  const box140 = new THREE.Mesh(new THREE.BoxGeometry(0.46, 0.22, 0.4), trimMat);
  box140.position.set(0, 1.27, -0.85);
  body.add(box140);
  const seat = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.1, 0.46), seatMat);
  seat.name = 'seat';
  seat.position.set(0, 1.43, -0.85);
  body.add(seat);
  const box142 = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.5, 0.1), seatMat);
  box142.position.set(0, 1.76, -1.1);
  box142.rotation.set(deg(-8), 0, 0);
  body.add(box142);
  const cylinder143 = new THREE.Mesh(new THREE.CylinderGeometry(0.025, 0.025, 0.4025, 5), trimMat);
  cylinder143.position.set(0, 1.6, -0.27);
  cylinder143.rotation.set(deg(-26.5651), 0, 0);
  body.add(cylinder143);
  const steeringWheel = new THREE.Mesh(new THREE.TorusGeometry(0.17, 0.022, 3, 10), trimMat);
  steeringWheel.name = 'steeringWheel';
  steeringWheel.position.set(0, 1.79, -0.38);
  steeringWheel.rotation.set(deg(55), 0, 0);
  body.add(steeringWheel);
  const exhaust = new THREE.Mesh(new THREE.CylinderGeometry(0.05, 0.05, 1.05, 8), metalMat);
  exhaust.name = 'exhaust';
  exhaust.position.set(0.2, 1.985, 0.35);
  body.add(exhaust);
  const exhaustTip = new THREE.Mesh(new THREE.CylinderGeometry(0.065, 0.055, 0.12, 8), trimMat);
  exhaustTip.name = 'exhaustTip';
  exhaustTip.position.set(0.2, 2.56, 0.35);
  exhaustTip.rotation.set(deg(-14), 0, 0);
  body.add(exhaustTip);
  const cylinder147 = new THREE.Mesh(new THREE.CylinderGeometry(0.06, 0.06, 0.38, 8), trimMat);
  cylinder147.position.set(-0.2, 1.65, 0.35);
  body.add(cylinder147);
  const airIntake = new THREE.Mesh(new THREE.CylinderGeometry(0.11, 0.09, 0.16, 8), metalMat);
  airIntake.name = 'airIntake';
  airIntake.position.set(-0.2, 1.92, 0.35);
  body.add(airIntake);
  const cylinder149 = new THREE.Mesh(cylinderGeo8, trimMat);
  cylinder149.position.set(0.35, 0.53, -1.47);
  cylinder149.rotation.set(deg(-95.9316), deg(7.6021), deg(-6.855));
  body.add(cylinder149);
  const cylinder150 = new THREE.Mesh(cylinderGeo8, trimMat);
  cylinder150.position.set(-0.35, 0.53, -1.47);
  cylinder150.rotation.set(deg(-95.9316), deg(-7.6021), deg(6.855));
  body.add(cylinder150);
  const topLink = new THREE.Mesh(new THREE.CylinderGeometry(0.035, 0.035, 0.4205, 6), trimMat);
  topLink.name = 'topLink';
  topLink.position.set(0, 0.91, -1.49);
  topLink.rotation.set(deg(-115.3462), 0, 0);
  body.add(topLink);
  const hitchBar = new THREE.Mesh(new THREE.BoxGeometry(0.86, 0.06, 0.06), metalMat);
  hitchBar.name = 'hitchBar';
  hitchBar.position.set(0, 0.5, -1.72);
  body.add(hitchBar);
  const ptoShaft = new THREE.Mesh(new THREE.CylinderGeometry(0.035, 0.035, 0.22, 6), metalMat);
  ptoShaft.name = 'ptoShaft';
  ptoShaft.position.set(0, 0.72, -1.38);
  ptoShaft.rotation.set(deg(90), 0, 0);
  body.add(ptoShaft);

  root.traverse((o) => {
    if (o.isMesh) {
      o.castShadow = true;
      o.receiveShadow = true;
    }
  });
  return root;
}

export default createTractor;