glam/es5/lib/scene/node/update-types.js

Experimental WebGL Engine

"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.updateTypes = updateTypes;
exports.default = updateTypesIfRooted;

var _isRooted = require("./is-rooted");

var _isRooted2 = _interopRequireDefault(_isRooted);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var BLANK = []; /* 
                 * The scene graph is a tree structure, which can be hard to work with at times.
                 * This file sets the scene.types to a flattened list of nodes by type. Each node
                 * can have multiple types to boil down to. 
                 */

function updateTypes(scene, graph, node, addOrRemove) {

	var types = node.type || BLANK;

	for (var i = 0; i < types.length; i++) {

		var type = types[i];
		var list = graph.types[type];

		if (!graph.types[type]) {
			list = [];
			graph.types[type] = list;
		}

		if (type === "light") {
			scene.flags.lightsChanged = true;
		}

		if (addOrRemove === "add") {
			list.push(node);
		} else {
			var index = list.indexOf(node);
			if (index !== -1) {
				list.splice(index, 1);
			}
		}
	}

	// Recurse
	var children = scene.children(node);

	for (var i = 0; i < children.length; i++) {
		updateTypes(scene, graph, children[i], addOrRemove);
	}
}

function updateTypesIfRooted(scene, graph, node, addOrRemove) {

	if ((0, _isRooted2.default)(scene, graph, node)) {
		updateTypes(scene, graph, node, addOrRemove);
	}
}