lingo3d/lib/throttle/diffSceneGraph.js

Lingo3D is a React/Vue 3d game development framework that ships with a complete visual editor

import serialize from "../api/serializer/serialize";
import throttleFrameTrailing from "./utils/throttleFrameTrailing";
let prevNodes = {};
export default throttleFrameTrailing(() => {
    //@ts-ignore
    const nodes = serialize().group((node) => node.uuid);
    const createNodes = [];
    const updateNodes = [];
    const deleteNodes = [];
    for (const [uuid, [node]] of Object.entries(nodes)) {
        if (!(uuid in prevNodes)) {
            createNodes.push(node);
            continue;
        }
        const prevNode = prevNodes[uuid][0];
        const diffNode = { uuid };
        let hasDiff = false;
        for (const [key, value] of Object.entries(node))
            if (value !== prevNode[key]) {
                diffNode[key] = value;
                hasDiff = true;
            }
        hasDiff && updateNodes.push(diffNode);
    }
    for (const [uuid, [node]] of Object.entries(prevNodes)) {
        if (uuid in nodes)
            continue;
        deleteNodes.push(node);
    }
    console.log("create", createNodes);
    console.log("update", updateNodes);
    console.log("delete", deleteNodes);
    prevNodes = nodes;
});
//# sourceMappingURL=diffSceneGraph.js.map