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- /**
- * @author richt / http://richt.me
- * @author WestLangley / http://github.com/WestLangley
- *
- * W3C Device Orientation control (http://w3c.github.io/deviceorientation/spec-source-orientation.html)
- */
- import {
- Euler,
- MathUtils,
- Quaternion,
- Vector3
- } from "../../../build/three.module.js";
- var DeviceOrientationControls = function ( object ) {
- var scope = this;
- this.object = object;
- this.object.rotation.reorder( 'YXZ' );
- this.enabled = true;
- this.deviceOrientation = {};
- this.screenOrientation = 0;
- this.alphaOffset = 0; // radians
- var onDeviceOrientationChangeEvent = function ( event ) {
- scope.deviceOrientation = event;
- };
- var onScreenOrientationChangeEvent = function () {
- scope.screenOrientation = window.orientation || 0;
- };
- // The angles alpha, beta and gamma form a set of intrinsic Tait-Bryan angles of type Z-X'-Y''
- var setObjectQuaternion = function () {
- var zee = new Vector3( 0, 0, 1 );
- var euler = new Euler();
- var q0 = new Quaternion();
- var q1 = new Quaternion( - Math.sqrt( 0.5 ), 0, 0, Math.sqrt( 0.5 ) ); // - PI/2 around the x-axis
- return function ( quaternion, alpha, beta, gamma, orient ) {
- euler.set( beta, alpha, - gamma, 'YXZ' ); // 'ZXY' for the device, but 'YXZ' for us
- quaternion.setFromEuler( euler ); // orient the device
- quaternion.multiply( q1 ); // camera looks out the back of the device, not the top
- quaternion.multiply( q0.setFromAxisAngle( zee, - orient ) ); // adjust for screen orientation
- };
- }();
- this.connect = function () {
- onScreenOrientationChangeEvent(); // run once on load
- // iOS 13+
- if ( window.DeviceOrientationEvent !== undefined && typeof window.DeviceOrientationEvent.requestPermission === 'function' ) {
- window.DeviceOrientationEvent.requestPermission().then( function ( response ) {
- if ( response == 'granted' ) {
- window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent, false );
- window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false );
- }
- } ).catch( function ( error ) {
- console.error( 'THREE.DeviceOrientationControls: Unable to use DeviceOrientation API:', error );
- } );
- } else {
- window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent, false );
- window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false );
- }
- scope.enabled = true;
- };
- this.disconnect = function () {
- window.removeEventListener( 'orientationchange', onScreenOrientationChangeEvent, false );
- window.removeEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false );
- scope.enabled = false;
- };
- this.update = function () {
- if ( scope.enabled === false ) return;
- var device = scope.deviceOrientation;
- if ( device ) {
- var alpha = device.alpha ? MathUtils.degToRad( device.alpha ) + scope.alphaOffset : 0; // Z
- var beta = device.beta ? MathUtils.degToRad( device.beta ) : 0; // X'
- var gamma = device.gamma ? MathUtils.degToRad( device.gamma ) : 0; // Y''
- var orient = scope.screenOrientation ? MathUtils.degToRad( scope.screenOrientation ) : 0; // O
- setObjectQuaternion( scope.object.quaternion, alpha, beta, gamma, orient );
- }
- };
- this.dispose = function () {
- scope.disconnect();
- };
- this.connect();
- };
- export { DeviceOrientationControls };
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