/// <summary>
/// Parses a GamePad configuration string.
/// This string must follow the rules for SDL2
/// GameController outlined here:
/// http://wiki.libsdl.org/SDL_GameControllerAddMapping
/// </summary>
/// <param name="configuration"></param>
private void ParseConfiguration(string configuration)
{
if (String.IsNullOrEmpty(configuration))
{
throw new ArgumentNullException();
}
// The mapping string has the format "GUID,name,config"
// - GUID is a unigue identifier returned by Joystick.GetGuid()
// - name is a human-readable name for the controller
// - config is a comma-separated list of configurations as follows:
// - [gamepad axis or button name]:[joystick axis, button or hat number]
string[] items = configuration.Split(ConfigurationSeparator, StringSplitOptions.RemoveEmptyEntries);
if (items.Length < 3)
{
throw new ArgumentException();
}
GamePadConfiguration map = this;
map.Guid = new Guid(items[0]);
map.Name = items[1];
for (int i = 2; i < items.Length; i++)
{
string[] config = items[i].Split(':');
GamePadConfigurationTarget target = ParseTarget(config[0]);
GamePadConfigurationSource source = ParseSource(config[1]);
configuration_items.Add(new GamePadConfigurationItem(source, target));
}
}
GamePadConfiguration GetConfiguration(Guid guid)
{
if (!configurations.ContainsKey(guid))
{
string config = database[guid];
GamePadConfiguration map = new GamePadConfiguration(config);
configurations.Add(guid, map);
}
return configurations[guid];
}
