Method handleWheel

packages/engine-core/src/Input/InputManager.ts:390–393

* 处理鼠标滚轮事件 * Handle mouse wheel event * @internal

(event: WheelEventInfo)

     * @internal
     */
    handleWheel(event: WheelEventInfo): void {
        this._scrollDelta.x += event.deltaX;
        this._scrollDelta.y += event.deltaY;
    }

    /**
     * 处理触摸开始事件