lingo3d/lib/throttle/getSelectionCandidates.js

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

import MeshAppendable from "../display/core/MeshAppendable";
import { appendableRoot } from "../collections/appendableRoot";
import { selectionCandidates } from "../collections/selectionCandidates";
import { emitSelectionTarget } from "../events/onSelectionTarget";
import { getSelectionFocus } from "../states/useSelectionFocus";
import { getSelectionFrozen } from "../states/useSelectionFrozen";
import throttleFrameTrailing from "./utils/throttleFrameTrailing";
import { selectionFrozenSet } from "../collections/selectionFrozenSet";
import { getFoundManager } from "../display/core/utils/getFoundManager";
const traverse = (targets) => {
    for (const manager of targets) {
        if (selectionFrozenSet.has(manager) || manager.$disableSelection)
            continue;
        "$addToRaycastSet" in manager &&
            manager.$addToRaycastSet(selectionCandidates);
        manager.children && traverse(manager.children);
    }
};
const traverseFocusChildren = (selectionFocus) => {
    selectionFocus.outerObject3d.traverse((child) => {
        if (child === selectionFocus.outerObject3d ||
            child === selectionFocus.object3d ||
            child.type === "Line")
            return;
        const manager = getFoundManager(child, selectionFocus);
        if (selectionFrozenSet.has(manager) || manager.$disableSelection)
            return;
        manager.$addToRaycastSet(selectionCandidates);
    });
};
export const getSelectionCandidates = throttleFrameTrailing(() => {
    selectionCandidates.clear();
    const selectionFocus = getSelectionFocus();
    if (selectionFocus)
        selectionFocus instanceof MeshAppendable &&
            traverseFocusChildren(selectionFocus);
    else
        traverse(appendableRoot);
});
getSelectionFrozen(() => {
    getSelectionCandidates();
    emitSelectionTarget(undefined);
});
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