the-world-engine/dist/esm/engine/script/render/DuckThreeCamera.js

three.js based, unity like game engine for browser

import { EventDispatcher } from "three/src/Three";

import { Camera } from "./Camera";

export class DuckThreeCamera {
    Nt;
    constructor(t, e) {
        this.Nt = t.transform;
        const r = Object.getOwnPropertyNames(e);
        for (const t of r) {
            const r = e[t];
            Object.defineProperty(this, t, {
                get: () => r,
                set: r => {
                    e[t] = r;
                },
                configurable: true
            });
        }
        const o = new Map;
        this.tc(e, o);
        for (const [t, r] of o) {
            this[t] = r.bind(e);
        }
        this.ec();
    }
    tc(t, e) {
        const r = t.__proto__;
        if (t !== EventDispatcher.prototype) {
            this.tc(r, e);
        }
        const o = Object.getOwnPropertyNames(r);
        for (const t of o) {
            if (t === "constructor") continue;
            if (t.startsWith("_")) continue;
            const o = r[t];
            e.set(t, o);
        }
    }
    ec() {
        const t = this.Nt;
        const e = t.unsafeGetObject3D();
        const r = [ "id", "uuid", "name", "parent", "children", "up", "position", "rotation", "quaternion", "scale", "matrix", "matrixWorld" ];
        for (let t = 0; t < r.length; ++t) {
            const o = r[t];
            Object.defineProperty(this, o, {
                get: () => e[o],
                set: t => {
                    e[o] = t;
                }
            });
        }
        const o = [ "add", "applyMatrix4", "applyQuaternion", "attach", "clear", "getWorldDirection", "getWorldPosition", "getWorldQuaternion", "getWorldScale", "localToWorld", "remove", "removeFromParent", "rotateOnAxis", "rotateOnWorldAxis", "rotateX", "rotateY", "rotateZ", "setRotationFromAxisAngle", "setRotationFromEuler", "setRotationFromMatrix", "setRotationFromQuaternion", "translateOnAxis", "translateX", "translateY", "translateZ", "updateMatrix", "updateMatrixWorld", "updateWorldMatrix", "worldToLocal" ];
        for (let t = 0; t < o.length; ++t) {
            const r = o[t];
            this[r] = e[r].bind(e);
        }
        this.lookAt = (t, r, o) => {
            e.isCamera = true;
            if (typeof t === "number") {
                e.lookAt(t, r, o);
            } else {
                e.lookAt(t);
            }
            e.isCamera = false;
        };
    }
    static duckPool=new Map;
    static createInterface(t) {
        if (t.threeCamera === null) {
            throw new Error("DuckThreeCamera must be constructed after Camera onEnable message called");
        }
        let e = this.duckPool.get(t.threeCamera);
        if (!e) {
            e = new DuckThreeCamera(t, t.threeCamera);
            this.duckPool.set(t.threeCamera, e);
        }
        return e;
    }
}

Camera.removeCameraFromDuckPool = function(t) {
    DuckThreeCamera.duckPool.delete(t);
};