It’d sure be great if we could retrieve a scenenode by GUID.
E.g., if you want to store a reference to another node in a node’s pluginData, the only JSON-safe method would be by GUID (a string).
It would be nice to have a native, fast way of doing this. But in the meanwhile, here’s something I use:
let flatten = t => {
let rec aux = (acc, t) => {
let x = [t, ...acc];
let xs = children(t) |> toList |> List.map(aux([])) |> List.concat;
List.concat([x, xs]);
};
aux([], t);
};
let findByIds = (t, ids) => {
let idExists = id => Belt.Array.some(ids, x => id == x);
flatten(t) |> List.filter(t => idExists(guid(t)));
};
This code is in Reason/OCaml – it flattens the root node into a list of nodes, and then does a linear search by guid. This is a quick & dirty approach – a more efficient way would be to do the search while traversing the tree.
Sure, one could always do a tree search, but that’s brute-forcing it, and it would be practically impossible for a large node scene with many lookups.
Yes, thanks, saw that.