diff -r 000000000000 -r 6fefd4afe506 front_processing/extern/TUIO_JAVA/src/TUIO/TuioContainer.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/front_processing/extern/TUIO_JAVA/src/TUIO/TuioContainer.java	Fri Mar 09 14:52:11 2012 +0100
@@ -0,0 +1,335 @@
+/*
+ TUIO Java backend - part of the reacTIVision project
+ http://reactivision.sourceforge.net/
+ 
+ Copyright (c) 2005-2009 Martin Kaltenbrunner <mkalten@iua.upf.edu>
+ 
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+ 
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package TUIO;
+
+import java.util.*;
+
+/**
+ * The abstract TuioContainer class defines common attributes that apply to both subclasses {@link TuioObject} and {@link TuioCursor}.
+ *
+ * @author Martin Kaltenbrunner
+ * @version 1.4
+ */ 
+abstract class TuioContainer extends TuioPoint {
+	
+	/**
+	 * The unique session ID number that is assigned to each TUIO object or cursor.
+	 */ 
+	protected long session_id;
+	/**
+	 * The X-axis velocity value.
+	 */ 
+	protected float x_speed;
+	/**
+	 * The Y-axis velocity value.
+	 */ 
+	protected float y_speed;
+	/**
+	 * The motion speed value.
+	 */ 
+	protected float motion_speed;	
+	/**
+	 * The motion acceleration value.
+	 */ 
+	protected float motion_accel;		
+	/**
+	 * A Vector of TuioPoints containing all the previous positions of the TUIO component.
+	 */ 
+	protected Vector<TuioPoint> path;
+	/**
+	 * Defines the ADDED state.
+	 */ 
+	public static final int TUIO_ADDED = 0;
+	/**
+	 * Defines the ACCELERATING state.
+	 */ 
+	public static final int TUIO_ACCELERATING = 1;
+	/**
+	 * Defines the DECELERATING state.
+	 */ 
+	public static final int TUIO_DECELERATING = 2;
+	/**
+	 * Defines the STOPPED state.
+	 */ 
+	public static final int TUIO_STOPPED = 3;
+	/**
+	 * Defines the REMOVED state.
+	 */ 
+	public static final int TUIO_REMOVED = 4;
+	/**
+	 * Reflects the current state of the TuioComponent
+	 */ 
+	protected int state;
+	
+	/**
+	 * This constructor takes a TuioTime argument and assigns it along with the provided 
+	 * Session ID, X and Y coordinate to the newly created TuioContainer.
+	 *
+	 * @param	ttime	the TuioTime to assign
+	 * @param	si	the Session ID to assign
+	 * @param	xp	the X coordinate to assign
+	 * @param	yp	the Y coordinate to assign
+	 */
+	TuioContainer(TuioTime ttime, long si, float xp, float yp) {
+		super(ttime,xp,yp);
+		
+		session_id = si;
+		x_speed = 0.0f;
+		y_speed = 0.0f;
+		motion_speed = 0.0f;
+		motion_accel = 0.0f;
+		
+		path = new Vector<TuioPoint>();
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		state = TUIO_ADDED;
+	}
+	
+	/**
+	 * This constructor takes the provided Session ID, X and Y coordinate 
+	 * and assigs these values to the newly created TuioContainer.
+	 *
+	 * @param	si	the Session ID to assign
+	 * @param	xp	the X coordinate to assign
+	 * @param	yp	the Y coordinate to assign
+	 */
+	TuioContainer(long si, float xp, float yp) {
+		super(xp,yp);
+		
+		session_id = si;
+		x_speed = 0.0f;
+		y_speed = 0.0f;
+		motion_speed = 0.0f;
+		motion_accel = 0.0f;
+		
+		path = new Vector<TuioPoint>();
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		state = TUIO_ADDED;
+	}
+	
+	/**
+	 * This constructor takes the atttibutes of the provided TuioContainer 
+	 * and assigs these values to the newly created TuioContainer.
+	 *
+	 * @param	tcon	the TuioContainer to assign
+	 */
+	TuioContainer(TuioContainer tcon) {
+		super(tcon);
+		
+		session_id = tcon.getSessionID();
+		x_speed = 0.0f;
+		y_speed = 0.0f;
+		motion_speed = 0.0f;
+		motion_accel = 0.0f;
+		
+		path = new Vector<TuioPoint>();
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		state = TUIO_ADDED;
+	}
+	
+	/**
+	 * Takes a TuioTime argument and assigns it along with the provided 
+	 * X and Y coordinate to the private TuioContainer attributes.
+	 * The speed and accleration values are calculated accordingly.
+	 *
+	 * @param	ttime	the TuioTime to assign
+	 * @param	xp	the X coordinate to assign
+	 * @param	yp	the Y coordinate to assign
+	 */
+	public void update(TuioTime ttime, float xp, float yp) {
+		TuioPoint lastPoint = path.lastElement();
+		super.update(ttime,xp,yp);
+		
+		TuioTime diffTime = currentTime.subtract(lastPoint.getTuioTime());
+		float dt = diffTime.getTotalMilliseconds()/1000.0f;
+		float dx = this.xpos - lastPoint.getX();
+		float dy = this.ypos - lastPoint.getY();
+		float dist = (float)Math.sqrt(dx*dx+dy*dy);
+		float last_motion_speed = this.motion_speed;
+		
+		this.x_speed = dx/dt;
+		this.y_speed = dy/dt;
+		this.motion_speed = dist/dt;
+		this.motion_accel = (motion_speed - last_motion_speed)/dt;
+		
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		if (motion_accel>0) state = TUIO_ACCELERATING;
+		else if (motion_accel<0) state = TUIO_DECELERATING;
+		else state = TUIO_STOPPED;
+	}
+	
+	/**
+	 * This method is used to calculate the speed and acceleration values of
+	 * TuioContainers with unchanged positions.
+	 */
+	public void stop(TuioTime ttime) {
+		update(ttime,xpos,ypos);
+	}
+	
+	/**
+	 * Takes a TuioTime argument and assigns it along with the provided 
+	 * X and Y coordinate, X and Y velocity and acceleration
+	 * to the private TuioContainer attributes.
+	 *
+	 * @param	ttime	the TuioTime to assign
+	 * @param	xp	the X coordinate to assign
+	 * @param	yp	the Y coordinate to assign
+	 * @param	xs	the X velocity to assign
+	 * @param	ys	the Y velocity to assign
+	 * @param	ma	the acceleration to assign
+	 */
+	public void update(TuioTime ttime, float xp, float yp , float xs, float ys, float ma) {
+		super.update(ttime,xp,yp);
+		x_speed = xs;
+		y_speed = ys;
+		motion_speed = (float)Math.sqrt(x_speed*x_speed+y_speed*y_speed);
+		motion_accel = ma;
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		if (motion_accel>0) state = TUIO_ACCELERATING;
+		else if (motion_accel<0) state = TUIO_DECELERATING;
+		else state = TUIO_STOPPED;
+	}
+	
+	/**
+	 * Assigns the provided X and Y coordinate, X and Y velocity and acceleration
+	 * to the private TuioContainer attributes. The TuioTime time stamp remains unchanged.
+	 *
+	 * @param	xp	the X coordinate to assign
+	 * @param	yp	the Y coordinate to assign
+	 * @param	xs	the X velocity to assign
+	 * @param	ys	the Y velocity to assign
+	 * @param	ma	the acceleration to assign
+	 */
+	public void update(float xp, float yp,float xs,float ys,float ma) {
+		super.update(xp,yp);
+		x_speed = xs;
+		y_speed = ys;
+		motion_speed = (float)Math.sqrt(x_speed*x_speed+y_speed*y_speed);
+		motion_accel = ma;
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		if (motion_accel>0) state = TUIO_ACCELERATING;
+		else if (motion_accel<0) state = TUIO_DECELERATING;
+		else state = TUIO_STOPPED;
+	}
+	
+	/**
+	 * Takes the atttibutes of the provided TuioContainer 
+	 * and assigs these values to this TuioContainer.
+	 * The TuioTime time stamp of this TuioContainer remains unchanged.
+	 *
+	 * @param	tcon	the TuioContainer to assign
+	 */
+	public void update (TuioContainer tcon) {
+		super.update(tcon);
+		x_speed = tcon.getXSpeed();
+		y_speed = tcon.getYSpeed();
+		motion_speed = tcon.getMotionSpeed();
+		motion_accel = tcon.getMotionAccel();
+		path.addElement(new TuioPoint(currentTime,xpos,ypos));
+		if (motion_accel>0) state = TUIO_ACCELERATING;
+		else if (motion_accel<0) state = TUIO_DECELERATING;
+		else state = TUIO_STOPPED;
+	}
+	
+	/**
+	 * Assigns the REMOVE state to this TuioContainer and sets
+	 * its TuioTime time stamp to the provided TuioTime argument.
+	 *
+	 * @param	ttime	the TuioTime to assign
+	 */
+	public void remove(TuioTime ttime) {
+		currentTime = new TuioTime(ttime);
+		state = TUIO_REMOVED;
+	}
+	
+	/**
+	 * Returns the Session ID of this TuioContainer.
+	 * @return	the Session ID of this TuioContainer
+	 */
+	public long getSessionID() {
+		return session_id;
+	}
+	
+	/**
+	 * Returns the X velocity of this TuioContainer.
+	 * @return	the X velocity of this TuioContainer
+	 */
+	public float getXSpeed() {
+		return x_speed;
+	}
+	
+	/**
+	 * Returns the Y velocity of this TuioContainer.
+	 * @return	the Y velocity of this TuioContainer
+	 */
+	public float getYSpeed() {
+		return y_speed;
+	}
+	
+	/**
+	 * Returns the position of this TuioContainer.
+	 * @return	the position of this TuioContainer
+	 */
+	public TuioPoint getPosition() {
+		return new TuioPoint(xpos,ypos);
+	}
+	
+	/**
+	 * Returns the path of this TuioContainer.
+	 * @return	the path of this TuioContainer
+	 */
+	public Vector<TuioPoint> getPath() {
+		return path;
+	}
+	
+	/**
+	 * Returns the motion speed of this TuioContainer.
+	 * @return	the motion speed of this TuioContainer
+	 */
+	public float getMotionSpeed() {
+		return motion_speed;
+	}
+	
+	/**
+	 * Returns the motion acceleration of this TuioContainer.
+	 * @return	the motion acceleration of this TuioContainer
+	 */
+	public float getMotionAccel() {
+		return motion_accel;
+	}
+	
+	/**
+	 * Returns the TUIO state of this TuioContainer.
+	 * @return	the TUIO state of this TuioContainer
+	 */
+	public int getTuioState() {
+		return state;
+	}
+	
+	/**
+	 * Returns true of this TuioContainer is moving.
+	 * @return	true of this TuioContainer is moving
+	 */
+	public boolean isMoving() { 
+		if ((state==TUIO_ACCELERATING) || (state==TUIO_DECELERATING)) return true;
+		else return false;
+	}
+	
+}