/*

 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 a TuioTime argument and assigns it along with the provided 

     * Session ID, X, Y and Z 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

     * @param    zp    the Z coordinate to assign

     */

    TuioContainer(TuioTime ttime, long si, float xp, float yp, float zp) {

        super(ttime,xp,yp, zp);

        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,zpos));

        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 provided Session ID, X, Y and Z 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

     * @param    zp    the Z coordinate to assign

     */

    TuioContainer(long si, float xp, float yp, float zp) {

        super(xp,yp,zp);

        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,zpos));

        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,zpos));

        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;

    }

    /**

     * Takes a TuioTime argument and assigns it along with the provided 

     * X, Y and Z 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

     * @param    zp    the Z coordinate to assign

     */

    public void update(TuioTime ttime, float xp, float yp, float zp) {

        TuioPoint lastPoint = path.lastElement();

        super.update(ttime,xp,yp,zp);

        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 dz = this.zpos - lastPoint.getZ();

        float dist = (float)Math.sqrt(dx*dx+dy*dy+dz*dz);

        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,zpos));

        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,zpos);

    }

    /**

     * 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;

    }

    /**

     * Takes a TuioTime argument and assigns it along with the provided 

     * X, Y and Z 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    zp    the Z 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 zp , float xs, float ys, float ma) {

        super.update(ttime,xp,yp,zp);

        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,zpos));

        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;

    }

    /**

     * Assigns the provided X, Y and Z 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    zp    the Z 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 zp,float xs,float ys,float ma) {

        super.update(xp,yp,zp);

        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,zpos));

        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) {