lingo3d/lib/engine/boxHelper.js

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

import { createEffect } from "@lincode/reactivity";
import { BoxHelper } from "three";
import { getMultipleSelectionTargets } from "../states/useMultipleSelectionTargets";
import { getSelectionTarget } from "../states/useSelectionTarget";
import scene from "./scene";
import { selectionTargetPtr } from "../pointers/selectionTargetPtr";
import { ssrExcludeSet } from "../collections/ssrExcludeSet";
import { renderCheckExcludeSet } from "../collections/renderCheckExcludeSet";
import { multipleSelectionTargets } from "../collections/multipleSelectionTargets";
import MeshAppendable from "../display/core/MeshAppendable";
import { updateSystem } from "../systems/updateSystem";
createEffect(() => {
    const [selectionTarget] = selectionTargetPtr;
    const target = selectionTarget instanceof MeshAppendable
        ? selectionTarget.object3d
        : undefined;
    if (!target)
        return;
    const boxHelper = new BoxHelper(target);
    scene.add(boxHelper);
    updateSystem.add(boxHelper);
    ssrExcludeSet.add(boxHelper);
    renderCheckExcludeSet.add(boxHelper);
    return () => {
        scene.remove(boxHelper);
        updateSystem.delete(boxHelper);
        boxHelper.dispose();
        ssrExcludeSet.delete(boxHelper);
        renderCheckExcludeSet.delete(boxHelper);
    };
}, [getSelectionTarget]);
createEffect(() => {
    if (!multipleSelectionTargets.size)
        return;
    const boxHelpers = [];
    for (const target of multipleSelectionTargets) {
        const boxHelper = new BoxHelper(target.object3d);
        scene.add(boxHelper);
        boxHelpers.push(boxHelper);
        updateSystem.add(boxHelper);
        ssrExcludeSet.add(boxHelper);
        renderCheckExcludeSet.add(boxHelper);
    }
    return () => {
        for (const boxHelper of boxHelpers) {
            updateSystem.delete(boxHelper);
            scene.remove(boxHelper);
            boxHelper.dispose();
            ssrExcludeSet.delete(boxHelper);
            renderCheckExcludeSet.delete(boxHelper);
        }
    };
}, [getMultipleSelectionTargets]);
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