await test()

in examples-vite/layers/gltf/index.ts [26:133]
91 lines of code
17 McCabe index (conditional complexity)

await test(true, 'PolarisLite', () => {
	const p = new PolarisLite({
		container: document.querySelector('#container') as HTMLDivElement,
		lights: { ambientLight: { type: 'ambient', intensity: 1 } },
		// background: 'transparent',
		// autoplay: false,
	})

	p.setStatesCode('1|119.310764|26.073899|0.000000|0.00000|-0.03000|15')

	const h = new HelperLayer()
	p.add(h)
	h.setProps({ box: false })

	// p.addEventListener('viewChange', (e) => {
	// 	console.log(e)
	// })
	globalThis.p = p
	console.log(p)

	// 加载GLTF
	const gltfLayer = new GLTF2Layer({ rotateX: false })
	p.add(gltfLayer)
	const gltfObject = testData.gltfs
	const keys = Object.keys(gltfObject)
	for (let i = 0; i < keys.length; i++) {
		const key = keys[i]
		const url = gltfObject[key] // 注意url源数据是否为空模型

		// 分类设色
		let color = new Color('#ffffff')
		switch (key) {
			case 'water': {
				color = new Color('#1E90FF')
				break
			}
			case 'green': {
				color = new Color('#008000')
				break
			}
			case 'road': {
				color = new Color('#8A2BE2')
				break
			}
			case 'building_lod1': {
				color = new Color('#FFA07A')
				break
			}
			case 'building_lod2': {
				color = new Color('#FF7F50')
				break
			}
			case 'building_lod3': {
				color = new Color('#FF4500')
				break
			}
			case 'building_lod4': {
				color = new Color('#FF0000')
				break
			}
		}

		gltfLayer.loadGLB(url).then((meshes) => {
			console.log(meshes)

			const projection = gltfLayer.resolveProjection()
			if (projection) {
				// 平移模型
				const centerPt = projection.project(...center3D)
				for (const item1 of meshes.children.values()) {
					if (item1.children.size > 0) {
						for (const item2 of item1.children.values()) {
							// 判断是否是空模型
							if (IR.isRenderable(item2)) {
								const positions = item2.geometry.attributes.position?.array as Float32Array
								for (let i = 0; i < positions.length / 3; i++) {
									positions[i * 3] += centerPt[0]
									positions[i * 3 + 1] += centerPt[1]
									positions[i * 3 + 2] += centerPt[2]
								}
								// 改变颜色
								item2.material['baseColorFactor'] = color
								item2.material['roughnessFactor'] = 0.5
								item2.material['metallicFactor'] = 0.1
							}
						}
					} else {
						// 判断是否是空模型
						if (IR.isRenderable(item1)) {
							const positions = item1.geometry.attributes.position?.array as Float32Array
							for (let i = 0; i < positions.length / 3; i++) {
								positions[i * 3] += centerPt[0]
								positions[i * 3 + 1] += centerPt[1]
								positions[i * 3 + 2] += centerPt[2]
							}
							// 改变颜色
							item1.material['baseColorFactor'] = color
							item1.material['roughnessFactor'] = 0.5
							item1.material['metallicFactor'] = 0.1
						}
					}
				}
			} else {
				console.warn('layer not inited')
			}
		})
	}
})