/Projects/SharpInputSystem.Xna/XnaJoystick.cs

#region MIT/X11 License

/*

Sharp Input System Library

Copyright Š 2007-2011 Michael Cummings



The overall design, and a majority of the core code contained within 

this library is a derivative of the open source Open Input System ( OIS ) , 

which can be found at http://www.sourceforge.net/projects/wgois.  

Many thanks to the Phillip Castaneda for maintaining such a high quality project.



 Permission is hereby granted, free of charge, to any person obtaining a copy

 of this software and associated documentation files (the "Software"), to deal

 in the Software without restriction, including without limitation the rights

 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the Software is

 furnished to do so, subject to the following conditions:



 The above copyright notice and this permission notice shall be included in

 all copies or substantial portions of the Software.



 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 THE SOFTWARE.



*/

#endregion MIT/X11 License



#region Namespace Declarations



using System;

using System.Collections.Generic;

using System.Text;



//using Common.Logging;



using XInput = Microsoft.Xna.Framework.Input;

using MXF = Microsoft.Xna.Framework;



#endregion Namespace Declarations



namespace SharpInputSystem.Xna

{

	class XnaJoystick : Joystick

	{

		#region Fields and Properties



		//private static readonly ILog log = LogManager.GetLogger( typeof( XnaJoystick ) );



		private const int _BUFFER_SIZE = 124;



		private JoystickInfo _joyInfo;



		private Guid _deviceGuid;



		private Dictionary<int, int> _axisMapping = new Dictionary<int, int>();



		#endregion Fields and Properties



		#region Construction and Destruction



		public XnaJoystick( InputManager creator, bool buffered )

		{

			Creator = creator;

			IsBuffered = buffered;

			Type = InputType.Joystick;

			EventListener = null;



			_joyInfo = (JoystickInfo)( (XnaInputManager)Creator ).CaptureDevice<Joystick>();



			if ( _joyInfo == null )

			{

				throw new Exception( "No devices match requested type." );

			}



			_deviceGuid = _joyInfo.DeviceId;

			Vendor = _joyInfo.Vendor;

			DeviceID = _joyInfo.Id.ToString();



			//log.Debug( "XnaJoystick device created." );



		}



		protected override void Dispose( bool disposeManagedResources )

		{

			if ( !IsDisposed )

			{

				if ( disposeManagedResources )

				{

					// Dispose managed resources.

				}



				// There are no unmanaged resources to release, but

				// if we add them, they need to be released here.



				( (XnaInputManager)Creator ).ReleaseDevice<Joystick>( _joyInfo );

			}



			// If it is available, make the call to the

			// base class's Dispose(Boolean) method

			base.Dispose( disposeManagedResources );

		}



		#endregion Construction and Destruction



		#region Methods



		protected void _enumerate()

		{

			//We can check force feedback here too

			XInput.GamePadCapabilities joystickCapabilities;



			joystickCapabilities = XInput.GamePad.GetCapabilities( (MXF.PlayerIndex)Int32.Parse( this.DeviceID ) );



			if ( joystickCapabilities.HasAButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasBButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasXButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasYButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasStartButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasBackButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasLeftStickButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasRightStickButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasLeftShoulderButton ) this.ButtonCount++;

			if ( joystickCapabilities.HasRightShoulderButton ) this.ButtonCount++;



			if ( joystickCapabilities.HasDPadUpButton && joystickCapabilities.HasDPadDownButton &&

			     joystickCapabilities.HasDPadLeftButton && joystickCapabilities.HasDPadRightButton )

			    this.AxisCount++;

			if ( joystickCapabilities.HasLeftTrigger ) this.AxisCount++;

			if ( joystickCapabilities.HasRightTrigger ) this.AxisCount++;

			if ( joystickCapabilities.HasLeftXThumbStick && joystickCapabilities.HasLeftYThumbStick ) this.AxisCount++;

			if ( joystickCapabilities.HasRightXThumbStick && joystickCapabilities.HasRightYThumbStick ) this.AxisCount++;



			this.PovCount++;



			_axisMapping.Clear();



			//Enumerate Force Feedback (if any)



			//Enumerate and set axis constraints (and check FF Axes)



		}



		#endregion Methods



		#region InputObject Implementation



		public override void Capture()

		{

			XInput.GamePadState currentState = XInput.GamePad.GetState( (MXF.PlayerIndex)Int32.Parse( DeviceID ) );

		}



		protected override void Initialize()

		{

			//Enumerate all axes/buttons/sliders/etc before aquiring

			_enumerate();



			JoystickState.Axis.Capacity = this.AxisCount;

			for ( int i = 0; i < this.AxisCount; i++ )

			{

				JoystickState.Axis.Add( new Axis() );

			}

			JoystickState.Clear();



			Capture();



		}



		#endregion InputObject Implementation



	}

}