source: other-projects/playing-in-the-street/summer-2013/trunk/Playing-in-the-Street-WPF/Content/Web/mrdoob-three.js-4862f5f/src/extras/core/Gyroscope.js@ 28897

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Gyroscope = function () {

    THREE.Object3D.call( this );

};

THREE.Gyroscope.prototype = Object.create( THREE.Object3D.prototype );

THREE.Gyroscope.prototype.updateMatrixWorld = function ( force ) {

    this.matrixAutoUpdate && this.updateMatrix();

    // update matrixWorld

    if ( this.matrixWorldNeedsUpdate || force ) {

        if ( this.parent ) {

            this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

            this.matrixWorld.decompose( this.translationWorld, this.quaternionWorld, this.scaleWorld );
            this.matrix.decompose( this.translationObject, this.quaternionObject, this.scaleObject );

            this.matrixWorld.compose( this.translationWorld, this.quaternionObject, this.scaleWorld );


        } else {

            this.matrixWorld.copy( this.matrix );

        }


        this.matrixWorldNeedsUpdate = false;

        force = true;

    }

    // update children

    for ( var i = 0, l = this.children.length; i < l; i ++ ) {

        this.children[ i ].updateMatrixWorld( force );

    }

};

THREE.Gyroscope.prototype.translationWorld = new THREE.Vector3();
THREE.Gyroscope.prototype.translationObject = new THREE.Vector3();
THREE.Gyroscope.prototype.quaternionWorld = new THREE.Quaternion();
THREE.Gyroscope.prototype.quaternionObject = new THREE.Quaternion();
THREE.Gyroscope.prototype.scaleWorld = new THREE.Vector3();
THREE.Gyroscope.prototype.scaleObject = new THREE.Vector3();