lingo3d/lib/states/useShadowMode.js

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

import store from "@lincode/reactivity";
import scene from "../engine/scene";
import { shadowModePtr } from "../pointers/shadowModePtr";
import { physicsSet } from "../collections/physicsSet";
import { Object3D } from "three";
import isOpaque from "../memo/isOpaque";
import { configCastShadowSystem } from "../systems/configLoadedSystems/configCastShadowSystem";
export const [setShadowMode, getShadowMode] = store(true);
let first = true;
getShadowMode((val) => {
    if (first) {
        first = false;
        return;
    }
    shadowModePtr[0] = val;
    if (val === true)
        scene.traverse((child) => {
            if (child.type === "Mesh")
                child.castShadow = child.receiveShadow && isOpaque(child);
        });
    else if (val === "physics") {
        scene.traverse((child) => {
            if (child.type === "Mesh")
                child.castShadow = false;
        });
        for (const child of physicsSet)
            configCastShadowSystem.add(child);
    }
    else
        scene.traverse((child) => {
            if (child.type === "Mesh")
                child.castShadow = false;
        });
});
const clone = Object3D.prototype.clone;
getShadowMode((val) => {
    if (val === true)
        Object3D.prototype.clone = function (recursive) {
            const result = clone.call(this, recursive);
            result.castShadow = result.receiveShadow;
            return result;
        };
    else
        Object3D.prototype.clone = clone;
});
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