设备映射教程

本教程将介绍如何使用Haply Inverse Service手动列出、映射和连接 Unity 项目中的设备。

概述

DeviceMapper组件与场景中的设备控制器协同工作，负责管理Inverse3 以及 VerseGrip 等Haply 设备的检测、映射和连接。

场景设置

首先，从“GameObject” > “Haply ” > “Haptic Rig (two hands)” 中创建一个 Haptic Rig。详情请参阅《入门指南》。

DeviceSelector 组件

创建一个新的 C# 脚本，DeviceSelector.cs 取名为，设备映射器 将其附加到 GameObject 上。 DeviceSelector 在类中，定义以下属性：

public Inverse3Controller leftInverse3;
public Inverse3Controller rightInverse3;

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

Device Mapper 的设置

Awake 在方法中 _deviceMapper 初始化属性，Ready 订阅该事件，以处理 Device Mapper 的就绪状态。

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);
}

获取设备控制器

要获取设备控制器，请：GetInverse3Controller 方法与 GetVerseGripController 可以使用该方法。

// 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);

设备控制器的惯用手选择

在设备准备就绪之前，SelectedHandedness 您可以使用该属性来选择惯用手。 DeviceMapper 会根据所选的惯用手，自动将已连接的设备分配给控制器。

// 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，请：FetchDeviceListOnce 可以使用该方法。

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

获取设备列表后，DeviceMapper 组件是 DeviceListReceived 发布事件。 您可以使用此事件更新用户界面，或执行与设备列表相关的其他操作。

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

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

设备映射

获取设备列表后，MapDevices 可以使用该方法将设备映射到控制器。

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

CanMapDevices 该方法用于检查设备列表是否完整，以及控制器是否已准备好进行映射。

连接设备

设备映射完成后，Connect 您可以使用该方法将设备连接到 WebSocket 服务器，以接收实时数据并控制设备。

备注

在下面的示例中，为了在设备准备就绪时开始对光标位置进行探测，ProbeCursorPosition 正在调用该方法。

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

设备更换

要在不同控制器之间切换设备，请：SwapInverse3 方法或 SwapVerseGrip 可以使用该方法。

以下示例演示了如何要求用户按下右侧手柄上的按钮以确认惯用手，以及在惯用手选择错误时如何更换设备。

OnDeviceMapperReady 在方法中，控制器中的 ButtonDown 订阅该事件，处理按钮点击事件，并提示用户确认惯用手。

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;
}

OnButtonDown 在该方法中，为了确认用户惯用手，会检查用户是否按下了右侧控制器上的按钮。

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);
    }
}

警告

此示例仅供教程使用，请勿在生产环境中使用。 请在您的应用程序中找到确认惯用手的不错方法。

错误处理

如果在设备映射过程中发生错误，则Error 将触发该事件。 您可以利用此事件处理错误，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

警告

DeviceSelector 该组件仅用于教程，请勿在生产环境中使用。 该组件演示了如何在 Unity 项目中列出、映射和连接设备。

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();
        }
    }
}