godot/platform/javascript/id_handler.js

/*************************************************************************/
/*  id_handler.js                                                        */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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/* "Software"), to deal in the Software without restriction, including   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
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/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/*************************************************************************/

var IDHandler = function() {

	var ids = {};
	var size = 0;

	this.has = function(id) {
		return ids.hasOwnProperty(id);
	}

	this.add = function(obj) {
		size += 1;
		var id = crypto.getRandomValues(new Int32Array(32))[0];
		ids[id] = obj;
		return id;
	}

	this.get = function(id) {
		return ids[id];
	}

	this.remove = function(id) {
		size -= 1;
		delete ids[id];
	}

	this.size = function() {
		return size;
	}

	this.ids = ids;
};

Module.IDHandler = new IDHandler;