@spearwolf/twopoint5d/lib/map2d/HelpersManager.js

Create 2.5D realtime graphics and pixelart with WebGL and three.js

import { MathUtils } from 'three/webgpu';
import { findRootNode } from '../utils/findRootNode.js';
export class HelpersManager {
    constructor() {
        this.uuid = MathUtils.generateUUID();
    }
    #scene;
    #root;
    get scene() {
        return this.#scene;
    }
    set scene(scene) {
        if (this.#scene !== scene) {
            this.remove();
            this.#scene = scene;
            this.#root = undefined;
        }
    }
    get root() {
        if (this.#root == null && this.#scene != null) {
            this.#root = findRootNode(this.#scene);
        }
        return this.#root;
    }
    add(node, addToRoot = false) {
        const target = addToRoot ? this.root : this.#scene;
        if (target) {
            node.userData['isHelper'] = true;
            node.userData['createdBy'] = this.uuid;
            target.add(node);
        }
    }
    remove() {
        if (this.#scene) {
            this.removeFromScene(this.#scene);
        }
    }
    removeFromScene(scene) {
        const removeChildren = [];
        for (const childNode of scene.children) {
            if (childNode.userData['isHelper'] && childNode.userData['createdBy'] === this.uuid) {
                removeChildren.push(childNode);
            }
        }
        for (const childNode of removeChildren) {
            childNode.removeFromParent();
            childNode.dispose?.();
        }
        if (this.root && scene !== this.root) {
            this.removeFromScene(this.root);
        }
    }
}
//# sourceMappingURL=HelpersManager.js.map