import { Database, Engine, RenderingManager, Scene } from "@babylonjs/core";
import { AdvancedDynamicTexture } from "@babylonjs/gui";

import { SceneManager } from "./controller/scene-manager";
import { LoginSatus } from "./controller/status/login-status";
import { StatusManager } from "./controller/status/status-manager";
import { UIManager } from "./controller/ui-manager";


export class Game {
    public canvas: HTMLCanvasElement;
    public engine: Engine;
    public scene: Scene;
    public uiRoot: AdvancedDynamicTexture;

    static instance: Game;

    //初始化引擎和画布
    public init(canvas: HTMLCanvasElement) {
        Game.instance = this;
        this.canvas = canvas;
        this.engine = new Engine(canvas, null, { stencil: true });
        Database.IDBStorageEnabled = true;//开启本地缓存
        this.scene = new Scene(this.engine);
        this.scene.useRightHandedSystem = true;//使用右手坐标系
        RenderingManager.MIN_RENDERINGGROUPS = -1;//最小渲染序列

        this.createScene();
        let scene = this.scene;
        // canvas.translate = true; //用于设置背景透明
        // scene.autoClear = true;
        UIManager.Instance.init();

        StatusManager.enterStatus<LoginSatus>(LoginSatus);

        //最后，将场景渲染出来 (重要，不可缺少)
        this.engine.runRenderLoop(function () {
            scene.render();
        })

        // 监听浏览器改变大小的事件，通过调用engine.resize()来自适应窗口大小
        window.addEventListener("resize", function () {
            Game.instance.engine.resize();
        });

    }

    //创建初始场景
    private createScene() {
        let sceneManager = SceneManager.init(this.scene, this.canvas, this.engine);
        sceneManager.initArcRotateCamera();
        sceneManager.initLight();
        sceneManager.updateSceneBG();
        sceneManager.initSceneEvent();
    }

}