类和组件概述

When you first open your project based on the VR Template and see a lot of different classes and components, you might get confused a bit. So, let's learn a bit more about the template structure. All components that implement the basic VR functionality are assigned to the corresponding nodes organized in the hierarchy with the vr_layer root node (see the picture below):当您第一次打开基于VR Template的项目并看到很多不同的类和组件时，您可能会感到困惑。 因此，让我们更多地了解模板结构。 实现基本VR功能的所有组件都被分配到具有vr_layer根节点的层次结构中组织的相应节点（见下图）：

A player is represented by the hierarchy of nodes with the vr_player node in the root (a Player Dummy camera), to which the VRPlayer component is assigned. The component implements the player's logic. The child nodes of vr_player represent models of HMDs and controllers, to which all necessary components are assigned to configure interactions and main parameters.玩家由根节点（Player Dummy摄像机）中具有vr_player节点的节点层次结构表示，该节点分配了VRPlayer组件。 组件实现玩家的逻辑。 vr_player的子节点表示HMD和控制器的模型，所有必要的组件都被分配给它们来配置交互和主要参数。

InputSystem is the main component that implements operations on user input, it includes all available devices, controllers, controls (controllers + common ones), event handlers, an so on. Input parameters for devices, functionality for polling the status of controls, etc. are implemented in the corresponding classes (PCInput, VRInput).InputSystem是实现对用户输入操作的主要组件，它包括所有可用的设备、控制器、控件（控制器+通用输入设备）、事件处理程序等等。 设备的输入参数、轮询控件状态的功能等都在相应的类（PCInput，VRInput）中实现。

Functionality of the devices is implemented in the components inhertied from the HeadController (for HMDs) and HandController (for controllers) base components:设备的功能是在从HeadController（用于HMD）和HandController（用于控制器）基础组件继承的组件中实现的：

• VRHeadController and VRHandController components for the VR mode.VR模式的VRHeadController和VRHandController组件。
• PCHeadController and PCHandController components for the VR-emulation mode with keyboard control.具有键盘控制的VR仿真模式的PCHeadController和PCHandController组件。

The VRMovementManager component is used for movement management. Different types of movements (rotating, walking, teleporting) are implemented in the components inherited from the base VRBaseMovement component (TurnMovement, WalkMovement, TeleportationMovement + implementation of movements for the VR-emulation mode with keyboard control).VRMovementManager组件用于移动管理。不同类型的运动(旋转、行走、传送)在从基础VRBaseMovement组件继承的组件（TurnMovement，WalkMovement，TeleportationMovement+使用键盘控制的VR模拟模式的运动实现）中实现。

The VRInteractionManager component is used for interactions management. Different types of interactions are implemented in the components inherited from the base VRBaseInteraction component:VRInteractionManager组件用于交互管理。 在从基VRBaseInteraction组件继承的组件中实现了不同类型的交互:

• VRHandMenuInteraction - interaction with the menu using controllersVRHandMenuInteraction使用控制器与菜单的交互
• VRHandShapeInteraction - interaction with objects using controllers and the keyboardVRHandShapeInteraction使用控制器和键盘与对象的交互
• VRPCHeadMenuInteraction - interaction with the menu for the VR-emulation mode with keyboard controlVRPCHeadMenuInteraction通过键盘控制与VR仿真模式的菜单交互

VRBaseInteractable is a base component for all interactive objects (objects you can interact with). It defines the main interactions: here you specify the available actions with the object. You can also add your own interaction type.VRBaseInteractable是所有交互对象（您可以与之交互的对象）的基本组件。 它定义了主要的交互：在这里您指定了与对象的可用操作。 您还可以添加自己的交互类型。

The following components are inherited from VRBaseInteractable:以下组件继承自VRBaseInteractable：