holo-project/src/holo/holoGlobal.js

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import Holo from '../holo/holo.js'
import Light from '../light/light.js'
import Settings from '../settings/settings.js'

class HoloGlobal {
    constructor() {
        this.loadModels()
        
        this.video = this.initializeVideo()        
        this.settings = new Settings()
        this.displaySize = { width: window.innerWidth, height: window.innerHeight }
        this.interval_started = false
        if (this.isMobileDevice()) {
            this.settings.interval_value = 100
        }
        this.interval_value = this.settings.interval_value

        this.start()
    }

    initializeVideo() {
        const video = this.createVideoElement()
        document.body.prepend(video)
        this.startVideo()

        return video
    }

    createVideoElement() {
        const video = document.createElement('video');
        video.muted = true        
        video.playsinline = true        
        video.autoplay = true
        video.height = window.innerHeight
        video.width = window.innerWidth
        video.style.position = 'fixed'
        video.style.width = '100%'
        video.style.visibility = 'hidden'
        
        return video
    }
    
    startVideo() {
        navigator.mediaDevices.getUserMedia({video: true, audio: false}).then((stream) => {this.video.srcObject = stream}, (err) => console.error(err))
    }

    async loadModels() {
        try {
            await faceapi.nets.tinyFaceDetector.load('/models/tiny_face_detector')
            await faceapi.nets.faceLandmark68Net.load('/models/face_landmark_68')
            console.log('models loaded successfully!')
        }
        catch(e) {
            console.error('models failed to load')
        }
        return true
    }

    isMobileDevice() {
        let check = false
        ;(function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera)
        return check
    }

    startInterval() {
        if (this.interval_started) return

        setInterval(async () => {
            const detections = await faceapi.detectAllFaces(this.video, new faceapi.TinyFaceDetectorOptions()).withFaceLandmarks()
            const resizedDetections = faceapi.resizeResults(detections, this.displaySize)

            // face outside of screen height and width
            if (resizedDetections[0] === undefined) {
                return
            }

            const light = new Light(this.settings.light_x, this.settings.light_y)

            const elements = document.querySelectorAll('.holo')
            elements.forEach((element) => {
                const holo = new Holo(element, resizedDetections, light, this.settings)
                element.style.backgroundImage = holo.getGradient()
                element.style.boxShadow = holo.getShadow()
            })
        }, this.interval_value)
        this.interval_started = true
    }

    start() {
        this.video.setAttribute("playsinline", true);
        this.video.addEventListener('play', () => {
            this.startInterval()
        })
        document.addEventListener('mousedown', () => {
            this.startInterval()
        })
        document.addEventListener('scroll', () => {
            this.startInterval()
        })
    }
}
export const global = new HoloGlobal()