File: //var/www/aspa/three/addons/nodes/math/HashNode.js
import Node, { addNodeClass } from '../core/Node.js';
import { addNodeElement, nodeProxy } from '../shadernode/ShaderNode.js';
class HashNode extends Node {
	constructor( seedNode ) {
		super();
		this.seedNode = seedNode;
	}
	setup( /*builder*/ ) {
		// Taken from https://www.shadertoy.com/view/XlGcRh, originally from pcg-random.org
		const state = this.seedNode.uint().mul( 747796405 ).add( 2891336453 );
		const word = state.shiftRight( state.shiftRight( 28 ).add( 4 ) ).bitXor( state ).mul( 277803737 );
		const result = word.shiftRight( 22 ).bitXor( word );
		return result.float().mul( 1 / 2 ** 32 ); // Convert to range [0, 1)
	}
}
export default HashNode;
export const hash = nodeProxy( HashNode );
addNodeElement( 'hash', hash );
addNodeClass( 'HashNode', HashNode );