67 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			67 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import {
 | 
						|
	Object3D,
 | 
						|
	Quaternion,
 | 
						|
	Vector3
 | 
						|
} from 'three';
 | 
						|
 | 
						|
const _translationObject = new Vector3();
 | 
						|
const _quaternionObject = new Quaternion();
 | 
						|
const _scaleObject = new Vector3();
 | 
						|
 | 
						|
const _translationWorld = new Vector3();
 | 
						|
const _quaternionWorld = new Quaternion();
 | 
						|
const _scaleWorld = new Vector3();
 | 
						|
 | 
						|
class Gyroscope extends Object3D {
 | 
						|
 | 
						|
	constructor() {
 | 
						|
 | 
						|
		super();
 | 
						|
 | 
						|
	}
 | 
						|
 | 
						|
	updateMatrixWorld( force ) {
 | 
						|
 | 
						|
		this.matrixAutoUpdate && this.updateMatrix();
 | 
						|
 | 
						|
		// update matrixWorld
 | 
						|
 | 
						|
		if ( this.matrixWorldNeedsUpdate || force ) {
 | 
						|
 | 
						|
			if ( this.parent !== null ) {
 | 
						|
 | 
						|
				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
 | 
						|
 | 
						|
				this.matrixWorld.decompose( _translationWorld, _quaternionWorld, _scaleWorld );
 | 
						|
				this.matrix.decompose( _translationObject, _quaternionObject, _scaleObject );
 | 
						|
 | 
						|
				this.matrixWorld.compose( _translationWorld, _quaternionObject, _scaleWorld );
 | 
						|
 | 
						|
 | 
						|
			} else {
 | 
						|
 | 
						|
				this.matrixWorld.copy( this.matrix );
 | 
						|
 | 
						|
			}
 | 
						|
 | 
						|
 | 
						|
			this.matrixWorldNeedsUpdate = false;
 | 
						|
 | 
						|
			force = true;
 | 
						|
 | 
						|
		}
 | 
						|
 | 
						|
		// update children
 | 
						|
 | 
						|
		for ( let i = 0, l = this.children.length; i < l; i ++ ) {
 | 
						|
 | 
						|
			this.children[ i ].updateMatrixWorld( force );
 | 
						|
 | 
						|
		}
 | 
						|
 | 
						|
	}
 | 
						|
 | 
						|
}
 | 
						|
 | 
						|
export { Gyroscope };
 |