77 lines
1.7 KiB
JavaScript
77 lines
1.7 KiB
JavaScript
/**
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* @module nodeUtils
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* Utilities to process scene nodes.
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*/
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/**
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* @typedef {Object} SceneNode
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* @property {String} label Required
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* @property {String} model
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* @property {Boolean} isMain
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* @property {Number|null} opacity
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* @property {SceneNode[]|null} children
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*/
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/**
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* @typedef {Object} NormalizedSceneNode
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* @property {String} label Required
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* @property {String} id
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* @property {String} model
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* @property {Boolean} isMain
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* @property {Number|null} opacity
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* @property {Boolean} active
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*/
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/**
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*
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* @param {SceneNode} node
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* @param {Array} flatList
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* @param {Number} depth
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*/
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function traverseTree(node, flatList, depth = 1, inheritedColor = null) {
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if (!node.label) {
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console.error("Node missing label:", node);
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return;
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}
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const color = node.color ?? inheritedColor;
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const normNode = {
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...node,
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id: node.id ?? node.label,
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isMain: node.isMain ?? false,
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active: true,
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color: color ?? null,
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depth,
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children: [],
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};
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if (node.model) {
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normNode.model = node.model;
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}
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flatList.push(normNode);
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if (node.children && Array.isArray(node.children)) {
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for(const child of node.children) {
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normNode.children.push(
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traverseTree(child, flatList, depth + 1, color)
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);
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}
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}
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return normNode;
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}
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/**
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* Create a flat list of nodes from
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* the nested structure in config
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* @param {Array} nodes
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* @returns {{flat: NormalizedSceneNode[], normNode: object}} A flat list of nodes
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**/
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export function normalizeNodes (nodes) {
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let flatList = [];
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const normNode = traverseTree(nodes, flatList);
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return {flat: flatList, normNode};
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}
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