设备配对教程

本教程将演示如何在 Unity 项目中使用Haply Inverse Service 手动列出、关联和连接设备。

概述

DeviceMapper组件负责管理Haply 设备（例如Inverse3 和VerseGrip）与场景中的设备控制器之间的发现、配对和连接。

场景设置

首先创建一个“Haptic Rig”：GameObject >Haply > Haptic Rig（双手），具体操作请参阅《入门指南》。

组件 DeviceSelector

创建一个名为 DeviceSelector.cs 并将它附加到游戏对象上 设备映射器. 在该类中定义以下属性 DeviceSelector :

public Inverse3Controller leftInverse3;
public Inverse3Controller rightInverse3;

private DeviceMapper _deviceMapper;
private string _message;
private bool _waitingForVerseGripHandednessConfirm;

DeviceMapper 的配置

在该方法中 Awake, 初始化该属性 _deviceMapper 并报名参加该活动 Ready 用于管理 DeviceMapper 的可用性。

private void Awake()
{
    _deviceMapper = GetComponent<DeviceMapper>();

    _deviceMapper.autoFetchDeviceList = false; // Disable auto-fetch to manually fetch the device list
    _deviceMapper.autoAssign = false; // Disable auto-assign to manually map devices
    _deviceMapper.autoConnect = false; // Disable auto-connect to manually connect devices

    _deviceMapper.Ready.AddListener(OnDeviceMapperReady);
}

设备控制器的获取

要获取设备控制器，您可以使用以下方法： GetInverse3Controller et GetVerseGripController.

// Get the first Inverse3 controller in the scene
leftInverse3 = _deviceMapper.GetInverse3Controller();

// Get the first Inverse3 controller in the scene with the specified handedness
leftInverse3 = _deviceMapper.GetInverse3Controller(HandednessType.Left);

// Get the Inverse3 controller in the scene with the specified device ID
leftInverse3 = _deviceMapper.GetInverse3Controller("1309");

// Get the first VerseGrip controller in the scene
verseGripController = _deviceMapper.GetVerseGripController();

// Get the VerseGrip controller in the scene associated with the specified Inverse3 controller
leftVerseGripController = _deviceMapper.GetVerseGripController(leftInverse3);

设备控制器的左右侧选择

在设备准备就绪之前，您可以通过该属性选择侧向性 SelectedHandedness. DeviceMapper 将根据所选的侧性，自动将连接的设备分配给相应的控制器。

// Select the left handedness for the left controller
leftInverse3.SelectedHandedness = HandednessType.Left;

// Select the right handedness for the right controller
rightInverse3.SelectedHandedness = HandednessType.Right;

获取设备列表

要获取已连接设备的列表，您可以使用以下方法： FetchDeviceListOnce.

// Fetch the list of connected devices
_deviceMapper.FetchDeviceListOnce();

获取设备列表后，该组件 DeviceMapper 触发该事件 DeviceListReceived. 您可以利用此事件来更新用户界面，或执行与设备列表相关的任何其他操作。

// Subscribe to the DeviceListReceived event
_deviceMapper.DeviceListReceived += OnDeviceListReceived;

private void OnDeviceListReceived(object sender, EventArgs e)
{
    // Update the UI or perform any other operations
}

设备协会

获取设备列表后，您可以使用以下方法将设备与控制器进行关联： MapDevices.

// Map the devices to the controllers
if (_deviceMapper.CanMapDevices())
    _deviceMapper.MapDevices();

该方法 CanMapDevices 检查设备列表是否完整，以及控制器是否已准备好进行配对。

设备连接

设备配对完成后，您可以使用以下方法将其连接到 WebSocket 服务器： Connect 以便接收实时数据并控制设备。

信息

在下面的示例中，我们调用了该方法 ProbeCursorPosition 在设备就绪时，用于启动光标位置查询。

// Connect the devices to the WebSocket server to receive real-time data
if (_deviceMapper.State == DeviceMapperState.MAPPING_COMPLETE)
    _deviceMapper.Connect();

设备更换

要在控制器之间交换设备，您可以使用以下方法 SwapInverse3 ou SwapVerseGrip.

以下示例演示了如何提示用户按下右侧控制器上的按钮以确认手部偏好，或者在手部偏好不正确时交换设备。

在该方法中 OnDeviceMapperReady, 我们订阅该活动 ButtonDown 控制程序，用于处理按键操作并提示用户确认手部惯用侧。

private void OnDeviceMapperReady()
{
    // Get the VerseGrip controllers using the DeviceMapper (must be done in Start or on DeviceMapper Ready event)
    var leftVerseGrip = _deviceMapper.GetVerseGripController(leftInverse3);
    var rightVerseGrip = _deviceMapper.GetVerseGripController(rightInverse3);

    leftVerseGrip.ButtonDown.AddListener(OnButtonDown);
    rightVerseGrip.ButtonDown.AddListener(OnButtonDown);

    // Start waiting for button press on the right controller
    _message = "Press the button on the right controller to confirm handedness.";
    _waitingForVerseGripHandednessConfirm = true;
}

在该方法中 OnButtonDown, 我们检查用户是否按下了右侧控制器的按钮以确认手部惯用侧。

private void OnButtonDown(VerseGripController verseGrip, VerseGripEventArgs args)
{
    if (_waitingForVerseGripHandednessConfirm)
    {
        if (verseGrip != _deviceMapper.GetVerseGripController(rightInverse3))
        {
            _deviceMapper.SwapVerseGrip();
        }
        _waitingForVerseGripHandednessConfirm = false;
    }
}

private void OnGUI()
{
    if (_waitingForVerseGripHandednessConfirm)
    {
        GUILayout.Label(_message);
    }
}

注意

此示例仅供教学参考，请勿在生产环境中使用。 请在您的应用程序中找到一种合适的方法来确认手性。

错误处理

如果在设备配对过程中发生错误，则该事件 Error 被触发。 您可以利用此事件来处理错误并向用户提供反馈。

// Subscribe to the Error event
_deviceMapper.ErrorOccured += OnError;

private void OnError(object sender, ErrorEventArgs e)
{
    _message = e.ErrorMessage;
    switch (e.ErrorCode)
    {
        // Handle the error...
    }
}

源文件

本示例中使用的最终场景及所有相关文件均可从 Unity 包管理器的“Tutorials”示例中导入。

DeviceSelector.cs

注意

该组件 DeviceSelector 本示例仅用于教学目的，请勿在生产环境中使用。 它演示了如何在 Unity 项目中列出、关联和连接设备。

using Haply.Inverse;
using Haply.Inverse.DeviceControllers;
using Haply.Inverse.DeviceData;
using UnityEngine;

namespace Haply.Samples.Tutorials._7_DeviceMapping
{
    public class DeviceSelector : MonoBehaviour
    {
        private DeviceMapper _deviceMapper;

        public Inverse3Controller leftInverse3;
        public Inverse3Controller rightInverse3;

        private string _message;
        private bool _waitingForVerseGripHandednessConfirm;

        private void Awake()
        {
            _deviceMapper = GetComponent<DeviceMapper>();
            _deviceMapper.autoAssign = false;
            _deviceMapper.autoConnect = false;
            _deviceMapper.autoFetchDeviceList = false;
            _deviceMapper.Ready.AddListener(SetupVerseGripHandednessCheck);
            _deviceMapper.Error += OnError;
            leftInverse3.Ready.AddListener(OnDeviceReady);
            rightInverse3.Ready.AddListener(OnDeviceReady);
        }

        // Start the verse grip handedness check (ask the user to press a button on the right controller)
        private void SetupVerseGripHandednessCheck()
        {
            // Get the VerseGrip controllers using the DeviceMapper (must be done in Start or on DeviceMapper Ready event)
            var leftVerseGrip = _deviceMapper.GetVerseGripController(leftInverse3);
            var rightVerseGrip = _deviceMapper.GetVerseGripController(rightInverse3);

            leftVerseGrip.ButtonDown.AddListener(OnButtonDown);
            rightVerseGrip.ButtonDown.AddListener(OnButtonDown);

            // Start waiting for button press on the right controller
            _message = "Press the button on the right controller to confirm handedness.";
            _waitingForVerseGripHandednessConfirm = true;
        }

        // Handle the button down event to confirm the verse grip handedness
        private void OnButtonDown(VerseGripController verseGrip, VerseGripEventArgs args)
        {
            if (_waitingForVerseGripHandednessConfirm && args.Button is VerseGripButton.Button0 or VerseGripButton.Button1)
            {
                if (verseGrip == _deviceMapper.GetVerseGripController(rightInverse3))
                {
                    _message = "VerseGrip handedness confirmed!";
                }
                else
                {
                    _message = "Wrong controller button pressed. Swap the controllers.";
                    _deviceMapper.SwapVerseGrip();
                }
                _waitingForVerseGripHandednessConfirm = false;
            }
            else
            {
                _message = $"Button {args.Button} pressed on {verseGrip.DeviceId}";
            }
        }

        // Handle the device ready event to start probing the cursor position
        private void OnDeviceReady(Inverse3Controller device, Inverse3EventArgs _)
        {
            // Start probing the cursor position when the device is ready
            device.ProbeCursorPosition();
        }

        // Handle errors from the device mapper
        private void OnError(object sender, DeviceMapperErrorEventArgs e)
        {
            _message = e.ErrorMessage;
        }

        // Display the device list
        private void DeviceListGUI()
        {
            if (_deviceMapper.GetNumInverse3() + _deviceMapper.GetNumVerseGrip() > 0)
            {
                GUILayout.Label("Connected devices:");
                foreach (var device in _deviceMapper.GetInverse3Devices())
                {
                    GUILayout.Label($"- {device}");
                }
                foreach (var device in _deviceMapper.GetVerseGripDevices())
                {
                    GUILayout.Label($"- {device}");
                }
            }
        }

        // Display the device mapper state and actions.
        private void DeviceMapperGUI()
        {
            switch (_deviceMapper.State)
            {
                case DeviceMapperState.UNINITIALIZED:
                case DeviceMapperState.INITIALIZED:
                    if (GUILayout.Button(new GUIContent("List devices",
                        "Fetch the device list by HTTP request")))
                    {
                        _deviceMapper.FetchDeviceListOnce();
                        _message = "Fetching device list...";
                    }
                    break;

                case DeviceMapperState.DEVICE_LIST_COMPLETE:
                    if (GUILayout.Button(new GUIContent("Map devices",
                        "Map the devices to the controllers according to the selected handedness")))
                    {
                        _deviceMapper.MapDevices();
                        _message = "Mapping devices...";
                    }
                    break;

                case DeviceMapperState.MAPPING_COMPLETE:
                    if (!_deviceMapper.IsReady)
                    {
                        if (GUILayout.Button(new GUIContent("Connect",
                            "Connect the devices to WebSocket server to receive real-time data")))
                        {
                            _deviceMapper.Connect();
                            _message = "Connecting...";
                        }
                    }
                    break;

                case DeviceMapperState.DEVICE_LIST_IN_PROGRESS:
                case DeviceMapperState.MAPPING_IN_PROGRESS:
                case DeviceMapperState.CONNECTED:
                    var style = new GUIStyle(GUI.skin.label) { normal = { textColor = Color.yellow } };
                    GUILayout.Label(_message, style);
                    break;

                case DeviceMapperState.ERROR:
                    var errorStyle = new GUIStyle(GUI.skin.label) { normal = { textColor = Color.red } };
                    GUILayout.Label(_message, errorStyle);
                    if (GUILayout.Button(new GUIContent("Retry")))
                    {
                        _deviceMapper.Reset();
                    }
                    break;
            }
        }

        // Display the device controller GUI for the inverse3 controller.
        private void Inverse3ControllerGUI(Inverse3Controller controller)
        {
            // Before the device is assigned, we can select the handedness
            if (!controller.Assigned)
            {
                GUILayout.Label("Inverse3Controller \u2192 <not assigned>", GUILayout.Width(800));

                if (GUILayout.Button($"Filter: {controller.SelectedHandedness}"))
                {
                    switch (controller.SelectedHandedness)
                    {
                        case HandednessType.Left:
                            controller.SelectedHandedness = HandednessType.Right;
                            break;
                        case HandednessType.Right:
                            controller.SelectedHandedness = HandednessType.Any;
                            break;
                        case HandednessType.Any:
                            controller.SelectedHandedness = HandednessType.Left;
                            break;
                    }
                }
            }

            // Once the device is assigned, devices can be swapped
            else
            {
                GUILayout.Label($"Inverse3Controller \u2192 #{controller.DeviceId}.{controller.Handedness}", GUILayout.Width(800));

                // Swap the two inverse3 controllers' assigned devices
                if (GUILayout.Button(new GUIContent("Swap inverse3",
                    "Swap the two inverse3 controller's assigned devices")))
                {
                    _deviceMapper.SwapInverse3();
                    _waitingForVerseGripHandednessConfirm = true;
                }
            }

            // Enable or disable the cursor position update
            var probing= GUILayout.Toggle(controller.IsProbeCursorPosition, "Probe cursor position");
            if (controller.IsReady && probing != controller.IsProbeCursorPosition)
            {
                controller.ProbeCursorPosition(probing);
            }
        }
        private void VerseGripControllerGUI(VerseGripController controller)
        {
            // Before the device is assigned, we can select the VerseGrip type
            if (!controller.Assigned)
            {
                GUILayout.Label("VerseGripController \u2192 <not assigned>", GUILayout.Width(800));
                if (GUILayout.Button($"Filter: {controller.verseGripTypeFilter}"))
                {
                    switch (controller.verseGripTypeFilter)
                    {
                        case VerseGripType.Wired:
                            controller.verseGripTypeFilter = VerseGripType.Wireless;
                            break;
                        case VerseGripType.Wireless:
                            controller.verseGripTypeFilter = VerseGripType.Any;
                            break;
                        case VerseGripType.Any:
                            controller.verseGripTypeFilter = VerseGripType.Wired;
                            break;
                    }
                }
            }

            // Once the device is ready, devices can be swapped
            else
            {
                GUILayout.Label($"VerseGripController \u2192 #{controller.DeviceId}.{controller.VerseGripType}", GUILayout.Width(800));

                // Swap the two verse grip controllers' assigned devices
                if (GUILayout.Button("Swap verse grip"))
                {
                    _deviceMapper.SwapVerseGrip();
                    _waitingForVerseGripHandednessConfirm = true;
                }
            }
        }

        // Display the GUI
        private void OnGUI()
        {
            // Show the device mapper state and actions
            GUILayout.BeginArea(new Rect(10, 10, 400, 200), new GUIStyle(GUI.skin.box));
            DeviceMapperGUI();
            GUILayout.Space(10);
            // Show the device list
            DeviceListGUI();
            GUILayout.EndArea();

            // Show the left inverse3 controller
            var leftRect = new Rect(0, Screen.height - 200, 300, 200);
            leftRect.x = 10;
            GUILayout.BeginArea(leftRect, new GUIStyle(GUI.skin.box));
            GUILayout.Label(leftInverse3.gameObject.name, GUILayout.Width(600));

            Inverse3ControllerGUI(leftInverse3);

            GUILayout.Space(10);

            // Show the associated verse grip controller
            var leftVerseGripController = _deviceMapper.GetVerseGripController(leftInverse3);
            VerseGripControllerGUI(leftVerseGripController);
            GUILayout.EndArea();

            // Show the right controller
            var rightRect = new Rect(0, Screen.height - 200, 300, 200);
            rightRect.x = Screen.width - rightRect.width - 10;
            GUILayout.BeginArea(rightRect, new GUIStyle(GUI.skin.box));
            GUILayout.Label(rightInverse3.gameObject.name, GUILayout.Width(600));

            Inverse3ControllerGUI(rightInverse3);

            GUILayout.Space(10);

            // Show the associated verse grip controller
            var rightVerseGripController = _deviceMapper.GetVerseGripController(rightInverse3);
            VerseGripControllerGUI(rightVerseGripController);

            GUILayout.EndArea();
        }
    }
}