Method start

packages/editor-app/src/services/EngineService.ts:483–493

* Start the game loop (preview mode).

()

     * Start the game loop (preview mode).
     */
    start(): void {
        if (!this._initialized || !this._runtime || this._running) {
            return;
        }

        this._running = true;
        this._runtime.start();

        // 启动自动播放动画
        this._startAutoPlayAnimations();
    }

    /**
     * Stop the game loop.