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