public GameControllerManager()
{
gameControllers = new List <GameController>();
int joystickCount = WindowsMultiMedia.GetJoystickDeviceCount();
byte controllerId = 0;
WindowsMultiMedia.JOYINFOEX joyInfoEx = new WindowsMultiMedia.JOYINFOEX();
joyInfoEx.dwSize = Marshal.SizeOf(joyInfoEx);
joyInfoEx.dwFlags = WindowsMultiMedia.JOY_RETURNALL;
for (Int32 deviceId = 0; deviceId < joystickCount; deviceId++)
{
if (WindowsMultiMedia.GetJoystickState(deviceId, ref joyInfoEx) == WindowsMultiMedia.JOYERR_NOERROR)
{
gameControllers.Add(new GameController(controllerId++, deviceId));
}
}
}
public void UpdateState()
{
int joyX = 0;
int joyY = 0;
int joyButtons = 0;
if (WindowsMultiMedia.GetJoystickState(deviceId, ref joyInfoEx) == WindowsMultiMedia.JOYERR_NOERROR)
{
joyX = joyInfoEx.dwXpos;
joyY = joyInfoEx.dwYpos;
joyButtons = joyInfoEx.dwButtons;
}
// detect button changes for event dispatch
Left = joyX < JoyCentreMinX;
Right = joyX > JoyCentreMaxX;
Up = joyY < JoyCentreMinY;
Down = joyY > JoyCentreMaxY;
buttonState[(int)Button.Left] = Left;
buttonState[(int)Button.Right] = Right;
buttonState[(int)Button.Up] = Up;
buttonState[(int)Button.Down] = Down;
for (int bitIndex = 0; bitIndex < 32; bitIndex++)
{
buttonState[4 + bitIndex] = (joyButtons & 1) == 1;
joyButtons >>= 1;
}
// copy fire button part of button state into fire button state array
Array.Copy(buttonState, 4, fireButtonState, 0, fireButtonState.Length);
// if ButtonPressed event wired, fire it on any presses
if (ButtonPressed != null)
{
for (int index = 0; index < buttonState.Length; index++)
{
if (buttonState[index] && !oldButtonState[index])
{
ButtonPressed(this, new GameControllerEventArgs(Id, (GameController.Button)index));
}
}
}
// if ButtonReleased event wired, fire it on any input releases
if (ButtonReleased != null)
{
for (int index = 0; index < buttonState.Length; index++)
{
if (!buttonState[index] && oldButtonState[index])
{
ButtonReleased(this, new GameControllerEventArgs(Id, (GameController.Button)index));
}
}
}
// copy button states to detect changes in next iteration
Array.Copy(buttonState, oldButtonState, buttonState.Length);
}