AddRemove

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import { Engine3D, Scene3D, CameraUtil, View3D, AtmosphericComponent, ComponentBase, Time, AxisObject, Object3DUtil, KelvinUtil, DirectLight, Object3D, HoverCameraController, MeshRenderer, LitMaterial, BoxGeometry, UnLit, UnLitMaterial, Interpolator, Camera3D } from '@orillusion/core';
import { Stats } from '@orillusion/stats';
import dat from 'dat.gui';

// sample add and remove object
class Sample_AddRemove {
    view: View3D;
    async run() {
        // init engine
        await Engine3D.init();
        // create new Scene
        let scene = new Scene3D();
        scene.addComponent(Stats);
        // add atmospheric sky
        let sky = scene.addComponent(AtmosphericComponent);
        sky.sunY = 0.6;

        // create camera
        let cameraObj = new Object3D();
        let mainCamera = cameraObj.addComponent(Camera3D);
        // adjust camera view
        mainCamera.perspective(60, Engine3D.aspect, 0.1, 5000.0);
        // add camera node
        scene.addChild(cameraObj);
        // set camera controller
        let controller = cameraObj.addComponent(HoverCameraController);
        controller.setCamera(15, -30, 300);

        // add a basic direct light
        let lightObj = new Object3D();
        lightObj.rotationX = 45;
        lightObj.rotationY = 60;
        lightObj.rotationZ = 150;
        let dirLight = lightObj.addComponent(DirectLight);
        dirLight.lightColor = KelvinUtil.color_temperature_to_rgb(5355);
        dirLight.intensity = 40;
        scene.addChild(lightObj);
        sky.relativeTransform = dirLight.transform;

        // create a view with target scene and camera
        this.view = new View3D();
        this.view.scene = scene;
        this.view.camera = mainCamera;

        // start render
        Engine3D.startRenderView(this.view);
        await this.initScene();
    }

    private async initScene() {
        let list: Object3D[] = [];
        let player = await Engine3D.res.loadGltf('https://cdn.orillusion.com/PBR/Duck/Duck.gltf');
        let buttons = {
            add: async () => {
                /******** player1 *******/
                let clone = player.clone();
                clone.transform.x = Math.random() * 200 - 100;
                clone.transform.y = Math.random() * 200 - 100;
                clone.transform.z = Math.random() * 200 - 100;
                clone.scaleX = clone.scaleY = clone.scaleZ = 0.25;

                this.view.scene.addChild(clone);
                list.push(clone);
            },
            remove: async () => {
                let index = Math.floor(list.length * Math.random());
                let obj = list[index];
                if (obj) {
                    list.splice(index, 1);
                    this.view.scene.removeChild(obj);
                    obj.destroy(true);
                }
            }
        };
        // add first one
        await buttons.add();
        // gui
        const gui = new dat.GUI();
        let folder = gui.addFolder('Orillusion');
        folder.add(buttons, 'add');
        folder.add(buttons, 'remove');
        folder.open();
    }
}

new Sample_AddRemove().run();