感谢这个回答https://stackoverflow.com/a/13734766/637142我能够知道按下按钮的时间或旋转方向盘的时间。现在我的问题是如何将效果发送到设备？例如，当我正在玩游戏时，如果我发生碰撞，车轮会振动。我怎么能让方向盘振动？
我相信我需要做的是Start()效果（http://sharpdx.org/documentation/api/t-sharpdx-directinput-effect）。 SharpDX.DirectInput.Joystick类似乎没有一个方法可以返回所有效果。有一个名为GetEffects的方法，但该方法返回EffectInfo个对象的集合。游戏如何向操纵杆发送命令？
答案 0 :(得分：5)
源代码是从here复制粘贴的。
要使用此来源，您需要一个“强制效果文件”（ C：\ MyEffectFile.ffe ），以便在操纵杆上“播放”它。
根据this book创建“强制效果”文件，您需要使用DirectX SDK附带的“强制编辑器”。
（同一本书，或者说，你可以在代码中从头开始创建效果......在答案中，我发现另一段代码创建并起诉效果而不从文件中加载它： - ））
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Microsoft.DirectX;
using Microsoft.DirectX.DirectInput;
namespace JoystickProject
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
private Device device = null;
private bool running = true;
private ArrayList effectList = new ArrayList();
private bool button0pressed = false;
private string joyState = "";
public bool InitializeInput()
{
// Create our joystick device
foreach(DeviceInstance di in Manager.GetDevices(DeviceClass.GameControl,
EnumDevicesFlags.AttachedOnly | EnumDevicesFlags.ForceFeeback))
{
// Pick the first attached joystick we see
device = new Device(di.InstanceGuid);
break;
}
if (device == null) // We couldn't find a joystick
return false;
device.SetDataFormat(DeviceDataFormat.Joystick);
device.SetCooperativeLevel(this, CooperativeLevelFlags.Exclusive | CooperativeLevelFlags.Background);
device.Properties.AxisModeAbsolute = true;
device.Properties.AutoCenter = false;
device.Acquire();
// Enumerate any axes
foreach(DeviceObjectInstance doi in device.Objects)
{
if ((doi.ObjectId & (int)DeviceObjectTypeFlags.Axis) != 0)
{
// We found an axis, set the range to a max of 10,000
device.Properties.SetRange(ParameterHow.ById,
doi.ObjectId, new InputRange(-5000, 5000));
}
}
// Load our feedback file
EffectList effects = null;
effects = device.GetEffects(@"C:\MyEffectFile.ffe",
FileEffectsFlags.ModifyIfNeeded);
foreach(FileEffect fe in effects)
{
EffectObject myEffect = new EffectObject(fe.EffectGuid, fe.EffectStruct,
device);
myEffect.Download();
effectList.Add(myEffect);
}
while(running)
{
UpdateInputState();
Application.DoEvents();
}
return true;
}
private void PlayEffects()
{
// See if our effects are playing.
foreach(EffectObject myEffect in effectList)
{
//if (button0pressed == true)
//{
//MessageBox.Show("Button Pressed.");
// myEffect.Start(1, EffectStartFlags.NoDownload);
//}
if (!myEffect.EffectStatus.Playing)
{
// If not, play them
myEffect.Start(1, EffectStartFlags.NoDownload);
}
}
//button0pressed = true;
}
protected override void OnClosed(EventArgs e)
{
running = false;
}
private void UpdateInputState()
{
PlayEffects();
// Check the joystick state
JoystickState state = device.CurrentJoystickState;
device.Poll();
joyState = "Using JoystickState: \r\n";
joyState += device.Properties.ProductName;
joyState += "\n";
joyState += device.ForceFeedbackState;
joyState += "\n";
joyState += state.ToString();
byte[] buttons = state.GetButtons();
for(int i = 0; i < buttons.Length; i++)
joyState += string.Format("Button {0} {1}\r\n", i, buttons[i] != 0 ? "Pressed" : "Not Pressed");
label1.Text = joyState;
//if(buttons[0] != 0)
//button0pressed = true;
}
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// label1
//
this.label1.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
this.label1.Location = new System.Drawing.Point(8, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(272, 488);
this.label1.TabIndex = 0;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.BackColor = System.Drawing.SystemColors.ControlText;
this.ClientSize = new System.Drawing.Size(288, 502);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1});
this.Name = "Form1";
this.Text = "Joystick Stuff";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
using (Form1 frm = new Form1())
{
frm.Show();
if (!frm.InitializeInput())
MessageBox.Show("Couldn't find a joystick.");
}
}
}
}
我刚刚发现here另一段可能有用的代码。 此示例似乎从头开始创建效果，因此您不需要“效果文件”。
DeviceList xDeviceList = Manager.GetDevices(DeviceClass.GameControl, EnumDevicesFlags.AttachedOnly);
DeviceInstance someDeviceInstance;
foreach (DeviceInstance deviceInstance in xDeviceList)
{
someDeviceInstance = deviceInstance;
break;
}
Device someDevice = new Device(someDeviceInstance.InstanceGuid);
someDevice.SetCooperativeLevel(this.Handle, CooperativeLevelFlags.Exclusive | CooperativeLevelFlags.Background);
int[] axis = new int[0];
foreach (DeviceObjectInstance doi in someDevice.Objects)
{
if((doi.Flags & (int)ObjectInstanceFlags.Actuator) != 0)
{
axis = new int[axis.Length + 1];
axis[axis.Length - 1] = doi.Offset;
}
}
someDevice.Acquire();
Effect effect = new Effect();
effect.SetDirection(new int[axis.Length]);
effect.SetAxes(new int[axis.Length]);
effect.ConditionStruct = new Condition[axis.Length];
effect.Flags = EffectFlags.Cartesian | EffectFlags.ObjectOffsets;
effect.Duration = int.MaxValue;
effect.SamplePeriod = 0;
effect.Gain = 10000;
effect.TriggerButton = (int)Microsoft.DirectX.DirectInput.Button.NoTrigger;
effect.TriggerRepeatInterval = 0;
effect.UsesEnvelope = false;
effect.EffectType = Microsoft.DirectX.DirectInput.EffectType.ConstantForce;
effect.StartDelay = 0;
effect.Constant = new Microsoft.DirectX.DirectInput.ConstantForce();
effect.Constant.Magnitude = -5000;
EffectObject effectObject = null;
foreach (EffectInformation ei in someDevice.GetEffects(EffectType.ConstantForce))
{
effectObject = new EffectObject(ei.EffectGuid, effect, someDevice);
}
effectObject.SetParameters(effect, EffectParameterFlags.Start );
这是另一个链接，然后可能有用Force feedback sample