//
// Copyright (c) PlaceholderCompany. All rights reserved.
//
namespace SystemTrayMenu.Helpers
{
using System;
using System.Diagnostics;
using System.Diagnostics.Metrics;
using System.Reflection.Metadata;
using System.Threading;
using SharpDX.DirectInput;
using Key = System.Windows.Input.Key;
public class JoystickHelper : IDisposable
{
private readonly System.Timers.Timer timerReadJoystick = new();
private readonly object lockRead = new();
private Joystick joystick;
private Key pressingKey;
private int pressingKeyCounter;
private bool joystickHelperEnabled;
public JoystickHelper()
{
timerReadJoystick.Interval = 80;
timerReadJoystick.Elapsed += ReadJoystickLoop;
timerReadJoystick.Enabled = false;
if (Properties.Settings.Default.SupportGamepad)
{
timerReadJoystick.Start();
}
}
~JoystickHelper() // the finalizer
{
Dispose(false);
}
public event Action KeyPressed;
public void Enable()
{
joystickHelperEnabled = true;
}
public void Disable()
{
joystickHelperEnabled = false;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
timerReadJoystick.Elapsed -= ReadJoystickLoop;
timerReadJoystick.Dispose();
joystick?.Dispose();
}
}
private static Key ReadKeyFromState(JoystickUpdate state)
{
Key keys = Key.None;
switch (state.Offset)
{
case JoystickOffset.PointOfViewControllers0:
switch (state.Value)
{
case 0:
keys = Key.Up;
break;
case 9000:
keys = Key.Right;
break;
case 18000:
keys = Key.Down;
break;
case 27000:
keys = Key.Left;
break;
default:
break;
}
break;
case JoystickOffset.Buttons0:
if (state.Value == 128)
{
keys = Key.Enter;
}
break;
default:
break;
}
return keys;
}
private void ReadJoystickLoop(object sender, System.Timers.ElapsedEventArgs e)
{
if (joystickHelperEnabled)
{
lock (lockRead)
{
timerReadJoystick.Stop();
if (joystick == null)
{
Thread.Sleep(3000);
InitializeJoystick();
}
else
{
ReadJoystick();
}
timerReadJoystick.Start();
}
}
}
private void ReadJoystick()
{
try
{
joystick.Poll();
JoystickUpdate[] datas = joystick.GetBufferedData();
foreach (JoystickUpdate state in datas)
{
if (state.Value < 0)
{
pressingKey = Key.None;
pressingKeyCounter = 0;
continue;
}
Key key = ReadKeyFromState(state);
if (key != Key.None)
{
KeyPressed?.Invoke(key);
if (state.Offset == JoystickOffset.PointOfViewControllers0)
{
pressingKeyCounter = 0;
pressingKey = key;
}
}
}
if (pressingKey != Key.None)
{
pressingKeyCounter += 1;
if (pressingKeyCounter > 1)
{
KeyPressed?.Invoke(pressingKey);
}
}
}
catch
{
joystick?.Dispose();
joystick = null;
}
}
private void InitializeJoystick()
{
// Initialize DirectInput
DirectInput directInput = new();
// Find a Joystick Guid
Guid joystickGuid = Guid.Empty;
foreach (DeviceInstance deviceInstance in directInput.GetDevices(
DeviceType.Gamepad,
DeviceEnumerationFlags.AllDevices))
{
joystickGuid = deviceInstance.InstanceGuid;
}
// If Gamepad not found, look for a Joystick
if (joystickGuid == Guid.Empty)
{
foreach (DeviceInstance deviceInstance in directInput.GetDevices(
DeviceType.Joystick,
DeviceEnumerationFlags.AllDevices))
{
joystickGuid = deviceInstance.InstanceGuid;
}
}
// If Joystick found
if (joystickGuid != Guid.Empty)
{
// Instantiate the joystick
joystick = new Joystick(directInput, joystickGuid);
// Set BufferSize in order to use buffered data.
joystick.Properties.BufferSize = 128;
var handle = Process.GetCurrentProcess().MainWindowHandle;
joystick.SetCooperativeLevel(handle, CooperativeLevel.NonExclusive | CooperativeLevel.Background);
// Acquire the joystick
joystick.Acquire();
}
}
}
}