Spaces:
Running
Running
File size: 2,648 Bytes
6cd9596 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 |
/**
* @author richt / http://richt.me
* @author WestLangley / http://github.com/WestLangley
*
* W3C Device Orientation control (http://w3c.github.io/deviceorientation/spec-source-orientation.html)
*/
THREE.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 THREE.Vector3( 0, 0, 1 );
var euler = new THREE.Euler();
var q0 = new THREE.Quaternion();
var q1 = new THREE.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
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 ? THREE.Math.degToRad( device.alpha ) + scope.alphaOffset : 0; // Z
var beta = device.beta ? THREE.Math.degToRad( device.beta ) : 0; // X'
var gamma = device.gamma ? THREE.Math.degToRad( device.gamma ) : 0; // Y''
var orient = scope.screenOrientation ? THREE.Math.degToRad( scope.screenOrientation ) : 0; // O
setObjectQuaternion( scope.object.quaternion, alpha, beta, gamma, orient );
}
};
this.dispose = function () {
scope.disconnect();
};
this.connect();
};
|