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An open source implementation of the Distributed Interactive Simulation (DIS) IEEE-1278 protocol
package edu.nps.moves.dismobile;
import java.util.*;
import java.io.*;
import edu.nps.moves.disenum.*;
import edu.nps.moves.disutil.*;
/**
* 5.3.3.4. Nonstatic information about a particular entity may be communicated by issuing an Entity State Update PDU. COMPLETE
*
* Copyright (c) 2008-2010, MOVES Institute, Naval Postgraduate School. All rights reserved.
* This work is licensed under the BSD open source license, available at https://www.movesinstitute.org/licenses/bsd.html
*
* @author DMcG
*/
public class EntityStateUpdatePdu extends EntityInformationFamilyPdu implements Serializable
{
/** This field shall identify the entity issuing the PDU */
protected EntityID entityID = new EntityID();
/** Padding */
protected byte padding1;
/** How many articulation parameters are in the variable length list */
protected short numberOfArticulationParameters;
/** Describes the speed of the entity in the world */
protected Vector3Float entityLinearVelocity = new Vector3Float();
/** describes the location of the entity in the world */
protected Vector3Double entityLocation = new Vector3Double();
/** describes the orientation of the entity, in euler angles */
protected Orientation entityOrientation = new Orientation();
/** a series of bit flags that are used to help draw the entity, such as smoking, on fire, etc. */
protected int entityAppearance;
protected List< ArticulationParameter> articulationParameters = new ArrayList();
/** Constructor */
public EntityStateUpdatePdu()
{
setPduType( (short)67 );
setProtocolFamily( (short)1 );
}
public int getMarshalledSize()
{
int marshalSize = 0;
marshalSize = super.getMarshalledSize();
marshalSize = marshalSize + entityID.getMarshalledSize(); // entityID
marshalSize = marshalSize + 1; // padding1
marshalSize = marshalSize + 1; // numberOfArticulationParameters
marshalSize = marshalSize + entityLinearVelocity.getMarshalledSize(); // entityLinearVelocity
marshalSize = marshalSize + entityLocation.getMarshalledSize(); // entityLocation
marshalSize = marshalSize + entityOrientation.getMarshalledSize(); // entityOrientation
marshalSize = marshalSize + 4; // entityAppearance
for(int idx=0; idx < articulationParameters.size(); idx++)
{
ArticulationParameter listElement = articulationParameters.get(idx);
marshalSize = marshalSize + listElement.getMarshalledSize();
}
return marshalSize;
}
public void setEntityID(EntityID pEntityID)
{ entityID = pEntityID;
}
public EntityID getEntityID()
{ return entityID;
}
public void setPadding1(byte pPadding1)
{ padding1 = pPadding1;
}
public byte getPadding1()
{ return padding1;
}
public short getNumberOfArticulationParameters()
{ return (short)articulationParameters.size();
}
/** Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
* The getnumberOfArticulationParameters method will also be based on the actual list length rather than this value.
* The method is simply here for java bean completeness.
*/
public void setNumberOfArticulationParameters(short pNumberOfArticulationParameters)
{ numberOfArticulationParameters = pNumberOfArticulationParameters;
}
public void setEntityLinearVelocity(Vector3Float pEntityLinearVelocity)
{ entityLinearVelocity = pEntityLinearVelocity;
}
public Vector3Float getEntityLinearVelocity()
{ return entityLinearVelocity;
}
public void setEntityLocation(Vector3Double pEntityLocation)
{ entityLocation = pEntityLocation;
}
public Vector3Double getEntityLocation()
{ return entityLocation;
}
public void setEntityOrientation(Orientation pEntityOrientation)
{ entityOrientation = pEntityOrientation;
}
public Orientation getEntityOrientation()
{ return entityOrientation;
}
public void setEntityAppearance(int pEntityAppearance)
{ entityAppearance = pEntityAppearance;
}
public int getEntityAppearance()
{ return entityAppearance;
}
public void setArticulationParameters(List pArticulationParameters)
{ articulationParameters = pArticulationParameters;
}
public List getArticulationParameters()
{ return articulationParameters; }
public void marshal(DataOutputStream dos)
{
super.marshal(dos);
try
{
entityID.marshal(dos);
dos.writeByte( (byte)padding1);
dos.writeByte( (byte)articulationParameters.size());
entityLinearVelocity.marshal(dos);
entityLocation.marshal(dos);
entityOrientation.marshal(dos);
dos.writeInt( (int)entityAppearance);
for(int idx = 0; idx < articulationParameters.size(); idx++)
{
ArticulationParameter aArticulationParameter = articulationParameters.get(idx);
aArticulationParameter.marshal(dos);
} // end of list marshalling
} // end try
catch(Exception e)
{
System.out.println(e);}
} // end of marshal method
public void unmarshal(DataInputStream dis)
{
super.unmarshal(dis);
try
{
entityID.unmarshal(dis);
padding1 = dis.readByte();
numberOfArticulationParameters = (short)dis.readUnsignedByte();
entityLinearVelocity.unmarshal(dis);
entityLocation.unmarshal(dis);
entityOrientation.unmarshal(dis);
entityAppearance = dis.readInt();
for(int idx = 0; idx < numberOfArticulationParameters; idx++)
{
ArticulationParameter anX = new ArticulationParameter();
anX.unmarshal(dis);
articulationParameters.add(anX);
}
} // end try
catch(Exception e)
{
System.out.println(e);
}
} // end of unmarshal method
/**
* Packs a Pdu into the ByteBuffer.
* @throws java.nio.BufferOverflowException if buff is too small
* @throws java.nio.ReadOnlyBufferException if buff is read only
* @see java.nio.ByteBuffer
* @param buff The ByteBuffer at the position to begin writing
* @since ??
*/
public void marshal(java.nio.ByteBuffer buff)
{
super.marshal(buff);
entityID.marshal(buff);
buff.put( (byte)padding1);
buff.put( (byte)articulationParameters.size());
entityLinearVelocity.marshal(buff);
entityLocation.marshal(buff);
entityOrientation.marshal(buff);
buff.putInt( (int)entityAppearance);
for(int idx = 0; idx < articulationParameters.size(); idx++)
{
ArticulationParameter aArticulationParameter = (ArticulationParameter)articulationParameters.get(idx);
aArticulationParameter.marshal(buff);
} // end of list marshalling
} // end of marshal method
/**
* Unpacks a Pdu from the underlying data.
* @throws java.nio.BufferUnderflowException if buff is too small
* @see java.nio.ByteBuffer
* @param buff The ByteBuffer at the position to begin reading
* @since ??
*/
public void unmarshal(java.nio.ByteBuffer buff)
{
super.unmarshal(buff);
entityID.unmarshal(buff);
padding1 = buff.get();
numberOfArticulationParameters = (short)(buff.get() & 0xFF);
entityLinearVelocity.unmarshal(buff);
entityLocation.unmarshal(buff);
entityOrientation.unmarshal(buff);
entityAppearance = buff.getInt();
for(int idx = 0; idx < numberOfArticulationParameters; idx++)
{
ArticulationParameter anX = new ArticulationParameter();
anX.unmarshal(buff);
articulationParameters.add(anX);
}
} // end of unmarshal method
/*
* The equals method doesn't always work--mostly it works only on classes that consist only of primitives. Be careful.
*/
@Override
public boolean equals(Object obj)
{
if(this == obj){
return true;
}
if(obj == null){
return false;
}
if(getClass() != obj.getClass())
return false;
return equalsImpl(obj);
}
@Override
public boolean equalsImpl(Object obj)
{
boolean ivarsEqual = true;
if(!(obj instanceof EntityStateUpdatePdu))
return false;
final EntityStateUpdatePdu rhs = (EntityStateUpdatePdu)obj;
if( ! (entityID.equals( rhs.entityID) )) ivarsEqual = false;
if( ! (padding1 == rhs.padding1)) ivarsEqual = false;
if( ! (numberOfArticulationParameters == rhs.numberOfArticulationParameters)) ivarsEqual = false;
if( ! (entityLinearVelocity.equals( rhs.entityLinearVelocity) )) ivarsEqual = false;
if( ! (entityLocation.equals( rhs.entityLocation) )) ivarsEqual = false;
if( ! (entityOrientation.equals( rhs.entityOrientation) )) ivarsEqual = false;
if( ! (entityAppearance == rhs.entityAppearance)) ivarsEqual = false;
for(int idx = 0; idx < articulationParameters.size(); idx++)
{
if( ! ( articulationParameters.get(idx).equals(rhs.articulationParameters.get(idx)))) ivarsEqual = false;
}
return ivarsEqual && super.equalsImpl(rhs);
}
} // end of class