init()

in packages/layers/flyline/src/FlyLineLayer.ts [61:135]
65 lines of code
10 McCabe index (conditional complexity)

	init(projection, timeline, polaris) {
		this.projection = projection
		this.timeline = timeline

		const listeningFlylineProps = [
			'data',
			'level',
			'color',
			'opacity',
			'transparent',
			'lineWidth',
			'pointSize',
			'texture',
			'image',
			'flipY',
			'resolution',
			'usePerspective',
			'usePoint',
			'infinity',
			'lineSegments',
			'flyPercent',
			'pool',
			'easing',
			'frameDropping',
			'useColors',
			'colors',
		] as const

		this.listenProps(listeningFlylineProps, () => {
			listeningFlylineProps.forEach((key) => {
				// @note this is a problem of ts, key became a union type and props[key] collapsed into `never`
				;(this.props[key] as any) = this.getProp(key)
			})
			const data = this.getProp('data')
			if (!data || !data.length) return

			this.props.pool = Math.max(data.length, this.getProp('pool') ?? 1)
			// Re-create flyline instance
			this.createFlyline(timeline, polaris)
			this.updateFlylinesData(data)
		})

		this.listenProps(['renderOrder'], () => {
			this.flyline && (this.flyline.mesh.renderOrder = this.getProp('renderOrder') ?? 0)
		})

		this.listenProps(['depthTest'], () => {
			this.flyline && (this.flyline.mesh.material.depthTest = this.getProp('depthTest') ?? true)
		})

		this.listenProps(['duration', 'delay', 'repeat', 'minHeight', 'maxHeight', 'data'], () => {
			this.props['duration'] = this.getProp('duration')
			this.props['delay'] = this.getProp('delay')
			this.props['repeat'] = this.getProp('repeat')
			this.props['minHeight'] = this.getProp('minHeight')
			this.props['maxHeight'] = this.getProp('maxHeight')
			const data = this.getProp('data')
			if (!data || !data.length) return
			this.updateFlylinesData(this.getProp('data'))
		})

		this.onViewChange = (cameraProxy, polaris) => {
			if (!this.flyline) return

			const w = polaris.width
			const h = polaris.height
			const originRes = this.flyline.mesh.material.config['resolution']
			if (originRes.x !== w || originRes.y !== h) {
				this.flyline.mesh.material.config['resolution'] = {
					x: w,
					y: h,
				}
			}
		}
	}