web-ar-experiment/index.html at gh-pages · FangerZero/web-ar-experiment · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>WebAR Animation Experiment</title>
    <script src="https://aframe.io/releases/0.7.1/aframe.min.js"></script>
    <script src="https://cdn.rawgit.com/donmccurdy/aframe-extras/cfe5f316/dist/aframe-extras.js"></script>
    <script src="https://rawgit.com/chenzlabs/three.ar.js/0f645a5/dist/three.ar.min.js"></script>
    <script src="https://rawgit.com/chenzlabs/aframe-ar/0cf8d5a/dist/aframe-ar.min.js"></script>
    <script>
        AFRAME.registerComponent('shadow-material', {
            init: function () {
                this.material = this.el.getOrCreateObject3D('mesh').material = new THREE.ShadowMaterial();
                this.material.opacity = 0.3;
            }
        });
    </script>
    <!-- Prevent touch causing flicker on iOS. -->
    <style> * { -webkit-tap-highlight-color: rgba(0,0,0,0); } </style>
</head>

<body>
    <a-scene ar>
        <!-- Specify raycaster="objects:none" to avoid intersections with A-Frame entities like the fox. -->
        <a-camera user-height="0" cursor="fuse:false" ar-raycaster raycaster="objects:none"></a-camera>
        <a-entity id="walker" position="0 0 -5" visible="false">
            <a-entity gltf-model="models/fox.glb" scale="0.5 0.5 0.5" id="fox" animation-mixer="clip:Fox_Idle" shadow="cast: true">
            </a-entity>
            <a-plane width="0.4" height="0.4" position="0 0 0" rotation="-90 0 0" color="white" shadow="receive: true" shadow-material></a-plane>
        </a-entity>
        <a-entity id="walker2" position="0 0 -5" visible="false">
            <a-entity gltf-model="models/dino.glb" id="dino"  scale="0.5 0.5 0.5" animation-mixer="clip:Idle" shadow="cast: true">
            </a-entity>
            <a-plane width="0.9" height="0.9" position="0 0 0" rotation="-90 0 0" color="white" shadow="receive: true" shadow-material></a-plane>
        </a-entity>
        <a-sphere id="intersection" visible="false" radius="0.02" color="red"></a-sphere>
    </a-scene>

    <script>
        let scene = document.querySelector('a-scene');
        let walker;
        let fox;
        let idleAnimation;
        let sitting = false;

        function activateFox() {
            walker = document.querySelector('#walker');
            fox = document.querySelector('#fox');
            idleAnimation = 'Fox_Idle';
            walkAnimation = 'Fox_Run';
        }

        function activateDino() {
            walker = document.querySelector('#walker2');
            fox = document.querySelector('#dino');
            idleAnimation = 'Idle';
            walkAnimation = 'Walk';
        }

        function playAnimation(animation) {
            if (fox === document.querySelector('#dino')) {
                sitting = animation.startsWith('Sit') && animation !== 'Sit_Up';
                fox.setAttribute('animation-mixer', { clip: animation });
                const listener = () => {
                    fox.setAttribute('animation-mixer', { clip: sitting ? 'Sit_Idle' : idleAnimation });
                    fox.removeEventListener('animation-loop', listener);
                };
                fox.addEventListener('animation-loop', listener);
            }
        }

        function onceSceneLoaded() {
            let raycaster = document.querySelector('[ar-raycaster]');
            let marker = document.querySelector('#intersection');
            activateFox();

            raycaster.addEventListener('raycaster-intersection', function (event) {
                const intersection = event.detail.intersections[0]; //.find(i => i.object.type === 'Scene');
                if (intersection) {
                    marker.setAttribute('position', intersection.point);
                    marker.setAttribute('visible', true);
                    marker.setAttribute('color', 'green');
                }
            });

            raycaster.addEventListener('raycaster-intersection-cleared', function (event) {
                marker.setAttribute('color', 'red');
            });

            const { stringify } = AFRAME.utils.coordinates;

            let lastEvent = null;
            raycaster.addEventListener('click', function () {
                const currentEvent = new Date().getTime();
                if (lastEvent && (currentEvent - lastEvent < 1000)) {
                    return;
                }
                lastEvent = currentEvent;

                const targetPosition = raycaster.components.cursor.intersection.point;
                if (!walker.getAttribute('visible')) {
                    walker.setAttribute('visible', true);
                    walker.setAttribute('position', stringify(targetPosition));
                } else {
                    const currentPosition = walker.object3D.position;
                    const distance = currentPosition.distanceTo(targetPosition);
                    walker.object3D.lookAt(targetPosition);
                    fox.setAttribute('animation-mixer', { clip: walkAnimation });
                    const animation = document.createElement('a-animation');
                    animation.setAttribute('attribute', 'position');
                    animation.setAttribute('to', stringify(targetPosition));
                    animation.setAttribute('dur', distance * 3000);
                    animation.setAttribute('easing', 'linear');
                    animation.addEventListener('animationend',
                        () => fox.setAttribute('animation-mixer', { clip: idleAnimation }));
                    marker.setAttribute('color', 'blue');
                    setTimeout(() => marker.setAttribute('color', 'green'), 350);
                    walker.appendChild(animation);
                }
            });
        }

        function onCommand(results) {
            recognition.start();
            for (const result of results) {
                for (const { transcript } of Array.from(result)) {
                    if (transcript.toLowerCase().includes('dino') || transcript.toLowerCase().includes('dina')) {
                        activateDino();
                    }
                    if (transcript.toLowerCase().includes('fox')) {
                        activateFox();
                    }
                    const animations = sitting ? {
                        'Stand up': 'Sit_Up',
                        'Eat': 'Sit_Eat',
                        'Chew': 'Sit_Chew',
                        'Look left': 'Sit_Head_Left',
                        'Look right': 'Sit_Head_Right',
                    } : {
                        'Look left': 'Head_Left',
                        'Look right': 'Head_Right',
                        'Chew': 'Chew',
                        'Drink': 'Drink',
                        'Jump': 'Jump',
                        'Head': 'Attack1',
                        'Attack': 'Attack2',
                        'Sit Down': 'Sit',
                        'Eat': 'Eat2',
                        'Run': 'Run',
                        'Play dead': 'Death',
                    };
                    for (const animationKey of Object.keys(animations)) {
                        if (transcript.toLowerCase().includes(animationKey.toLowerCase())) {
                            playAnimation(animations[animationKey]);
                            return;
                        }
                    }
                    if (transcript.toLowerCase().includes('random')) {
                        const animationKey = Object.keys(animations)[Math.floor(Math.random() * Object.keys(animations).length)];
                        playAnimation(animations[animationKey]);
                        return;
                    }
                }
            }
        }

        try {

        recognition = new webkitSpeechRecognition();
        recognition.continuous = true;
        recognition.maxAlternatives = 5;
        recognition.onresult = ({results}) => onCommand(results);
        recognition.onerror = () => setTimeout(() => recognition.start(), 500);
        recognition.start();

        } catch (err) { console.error(err.message); }

        scene.addEventListener('loaded', onceSceneLoaded);
    </script>
</body>

</html>