/// <summary>
/// Gets the index of the first player which does not have an associated game pad.
/// </summary>
/// <returns>The index of the first player which does not have an associated game pad.</returns>
private Int32 GetFirstAvailablePlayerIndex()
{
for (int i = 0; i < devicesByPlayer.Length; i++)
{
if (devicesByPlayer[i] == null)
{
return(i);
}
}
var devicesOld = devicesByPlayer;
var devicesNew = new SDL2GamePadDevice[devicesOld.Length + 1];
Array.Copy(devicesOld, devicesNew, devicesOld.Length);
devicesByPlayer = devicesNew;
return(devicesByPlayer.Length - 1);
}
/// <summary>
/// Called when a controller device is added.
/// </summary>
/// <param name="joystickIndex">The index of the device to add.</param>
private void OnControllerDeviceAdded(Int32 joystickIndex)
{
var gamecontroller = SDL_GameControllerOpen(joystickIndex);
var joystick = SDL_GameControllerGetJoystick(gamecontroller);
var joystickID = SDL_JoystickInstanceID(joystick);
for (int i = 0; i < devicesByPlayer.Length; i++)
{
if (devicesByPlayer[i] != null && devicesByPlayer[i].InstanceID == joystickID)
{
return;
}
}
var playerIndex = GetFirstAvailablePlayerIndex();
var device = new SDL2GamePadDevice(Ultraviolet, joystickIndex, playerIndex);
devicesByPlayer[playerIndex] = device;
count++;
OnGamePadConnected(device, playerIndex);
}