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299 lines
6.8 KiB
299 lines
6.8 KiB
import {
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Mesh,
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MeshBasicMaterial,
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Object3D,
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SphereGeometry,
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} from 'three';
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import { GLTFLoader } from '../loaders/GLTFLoader.js';
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import {
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Constants as MotionControllerConstants,
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fetchProfile,
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MotionController
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} from '../libs/motion-controllers.module.js';
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const DEFAULT_PROFILES_PATH = 'https://cdn.jsdelivr.net/npm/@webxr-input-profiles/assets@1.0/dist/profiles';
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const DEFAULT_PROFILE = 'generic-trigger';
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class XRControllerModel extends Object3D {
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constructor() {
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super();
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this.motionController = null;
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this.envMap = null;
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}
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setEnvironmentMap( envMap ) {
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if ( this.envMap == envMap ) {
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return this;
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}
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this.envMap = envMap;
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this.traverse( ( child ) => {
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if ( child.isMesh ) {
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child.material.envMap = this.envMap;
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child.material.needsUpdate = true;
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}
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} );
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return this;
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}
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/**
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* Polls data from the XRInputSource and updates the model's components to match
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* the real world data
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*/
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updateMatrixWorld( force ) {
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super.updateMatrixWorld( force );
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if ( ! this.motionController ) return;
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// Cause the MotionController to poll the Gamepad for data
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this.motionController.updateFromGamepad();
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// Update the 3D model to reflect the button, thumbstick, and touchpad state
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Object.values( this.motionController.components ).forEach( ( component ) => {
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// Update node data based on the visual responses' current states
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Object.values( component.visualResponses ).forEach( ( visualResponse ) => {
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const { valueNode, minNode, maxNode, value, valueNodeProperty } = visualResponse;
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// Skip if the visual response node is not found. No error is needed,
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// because it will have been reported at load time.
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if ( ! valueNode ) return;
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// Calculate the new properties based on the weight supplied
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if ( valueNodeProperty === MotionControllerConstants.VisualResponseProperty.VISIBILITY ) {
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valueNode.visible = value;
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} else if ( valueNodeProperty === MotionControllerConstants.VisualResponseProperty.TRANSFORM ) {
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valueNode.quaternion.slerpQuaternions(
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minNode.quaternion,
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maxNode.quaternion,
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value
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);
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valueNode.position.lerpVectors(
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minNode.position,
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maxNode.position,
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value
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);
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}
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} );
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} );
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}
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}
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/**
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* Walks the model's tree to find the nodes needed to animate the components and
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* saves them to the motionContoller components for use in the frame loop. When
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* touchpads are found, attaches a touch dot to them.
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*/
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function findNodes( motionController, scene ) {
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// Loop through the components and find the nodes needed for each components' visual responses
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Object.values( motionController.components ).forEach( ( component ) => {
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const { type, touchPointNodeName, visualResponses } = component;
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if ( type === MotionControllerConstants.ComponentType.TOUCHPAD ) {
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component.touchPointNode = scene.getObjectByName( touchPointNodeName );
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if ( component.touchPointNode ) {
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// Attach a touch dot to the touchpad.
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const sphereGeometry = new SphereGeometry( 0.001 );
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const material = new MeshBasicMaterial( { color: 0x0000FF } );
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const sphere = new Mesh( sphereGeometry, material );
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component.touchPointNode.add( sphere );
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} else {
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console.warn( `Could not find touch dot, ${component.touchPointNodeName}, in touchpad component ${component.id}` );
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}
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}
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// Loop through all the visual responses to be applied to this component
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Object.values( visualResponses ).forEach( ( visualResponse ) => {
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const { valueNodeName, minNodeName, maxNodeName, valueNodeProperty } = visualResponse;
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// If animating a transform, find the two nodes to be interpolated between.
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if ( valueNodeProperty === MotionControllerConstants.VisualResponseProperty.TRANSFORM ) {
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visualResponse.minNode = scene.getObjectByName( minNodeName );
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visualResponse.maxNode = scene.getObjectByName( maxNodeName );
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// If the extents cannot be found, skip this animation
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if ( ! visualResponse.minNode ) {
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console.warn( `Could not find ${minNodeName} in the model` );
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return;
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}
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if ( ! visualResponse.maxNode ) {
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console.warn( `Could not find ${maxNodeName} in the model` );
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return;
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}
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}
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// If the target node cannot be found, skip this animation
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visualResponse.valueNode = scene.getObjectByName( valueNodeName );
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if ( ! visualResponse.valueNode ) {
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console.warn( `Could not find ${valueNodeName} in the model` );
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}
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} );
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} );
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}
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function addAssetSceneToControllerModel( controllerModel, scene ) {
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// Find the nodes needed for animation and cache them on the motionController.
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findNodes( controllerModel.motionController, scene );
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// Apply any environment map that the mesh already has set.
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if ( controllerModel.envMap ) {
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scene.traverse( ( child ) => {
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if ( child.isMesh ) {
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child.material.envMap = controllerModel.envMap;
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child.material.needsUpdate = true;
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}
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} );
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}
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// Add the glTF scene to the controllerModel.
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controllerModel.add( scene );
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}
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class XRControllerModelFactory {
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constructor( gltfLoader = null ) {
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this.gltfLoader = gltfLoader;
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this.path = DEFAULT_PROFILES_PATH;
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this._assetCache = {};
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// If a GLTFLoader wasn't supplied to the constructor create a new one.
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if ( ! this.gltfLoader ) {
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this.gltfLoader = new GLTFLoader();
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}
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}
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createControllerModel( controller ) {
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const controllerModel = new XRControllerModel();
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let scene = null;
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controller.addEventListener( 'connected', ( event ) => {
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const xrInputSource = event.data;
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if ( xrInputSource.targetRayMode !== 'tracked-pointer' || ! xrInputSource.gamepad ) return;
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fetchProfile( xrInputSource, this.path, DEFAULT_PROFILE ).then( ( { profile, assetPath } ) => {
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controllerModel.motionController = new MotionController(
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xrInputSource,
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profile,
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assetPath
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);
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const cachedAsset = this._assetCache[ controllerModel.motionController.assetUrl ];
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if ( cachedAsset ) {
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scene = cachedAsset.scene.clone();
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addAssetSceneToControllerModel( controllerModel, scene );
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} else {
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if ( ! this.gltfLoader ) {
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throw new Error( 'GLTFLoader not set.' );
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}
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this.gltfLoader.setPath( '' );
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this.gltfLoader.load( controllerModel.motionController.assetUrl, ( asset ) => {
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this._assetCache[ controllerModel.motionController.assetUrl ] = asset;
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scene = asset.scene.clone();
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addAssetSceneToControllerModel( controllerModel, scene );
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},
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null,
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() => {
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throw new Error( `Asset ${controllerModel.motionController.assetUrl} missing or malformed.` );
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} );
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}
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} ).catch( ( err ) => {
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console.warn( err );
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} );
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} );
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controller.addEventListener( 'disconnected', () => {
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controllerModel.motionController = null;
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controllerModel.remove( scene );
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scene = null;
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} );
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return controllerModel;
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}
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}
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export { XRControllerModelFactory };
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