edu.nps.moves.dis7.CollisionPdu Maven / Gradle / Ivy
package edu.nps.moves.dis7;
import java.io.*;
/**
* Section 7.2.3 Collisions between entities shall be communicated by issuing a
* Collision PDU. COMPLETE
*
* Copyright (c) 2008-2016, 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 CollisionPdu extends EntityInformationFamilyPdu implements Serializable {
/**
* This field shall identify the entity that is issuing the PDU, and shall
* be represented by an Entity Identifier record (see 6.2.28).
*/
protected EntityID issuingEntityID = new EntityID();
/**
* This field shall identify the entity that has collided with the issuing
* entity (see 5.3.3.4). This field shall be represented by an Entity
* Identifier record (see 6.2.28).
*/
protected EntityID collidingEntityID = new EntityID();
/**
* This field shall contain an identification generated by the issuing
* simulation application to associate related collision events. This field
* shall be represented by an Event Identifier record (see 6.2.34).
*/
protected EventIdentifier eventID = new EventIdentifier();
/**
* This field shall identify the type of collision. The Collision Type field
* shall be represented by an 8-bit record of enumerations
*/
protected short collisionType;
/**
* some padding
*/
protected byte pad = (byte) 0;
/**
* This field shall contain the velocity (at the time the collision is
* detected) of the issuing entity. The velocity shall be represented in
* world coordinates. This field shall be represented by the Linear Velocity
* Vector record [see 6.2.95 item c)].
*/
protected Vector3Float velocity = new Vector3Float();
/**
* This field shall contain the mass of the issuing entity, and shall be
* represented by a 32-bit floating point number representing kilograms.
*/
protected float mass;
/**
* This field shall specify the location of the collision with respect to
* the entity with which the issuing entity collided. The Location field
* shall be represented by an Entity Coordinate Vector record [see 6.2.95
* item a)].
*/
protected Vector3Float location = new Vector3Float();
/**
* Constructor
*/
public CollisionPdu() {
setPduType((short) 4);
setProtocolFamily((short) 1);
}
public int getMarshalledSize() {
int marshalSize = 0;
marshalSize = super.getMarshalledSize();
marshalSize = marshalSize + issuingEntityID.getMarshalledSize(); // issuingEntityID
marshalSize = marshalSize + collidingEntityID.getMarshalledSize(); // collidingEntityID
marshalSize = marshalSize + eventID.getMarshalledSize(); // eventID
marshalSize = marshalSize + 1; // collisionType
marshalSize = marshalSize + 1; // pad
marshalSize = marshalSize + velocity.getMarshalledSize(); // velocity
marshalSize = marshalSize + 4; // mass
marshalSize = marshalSize + location.getMarshalledSize(); // location
return marshalSize;
}
public void setIssuingEntityID(EntityID pIssuingEntityID) {
issuingEntityID = pIssuingEntityID;
}
public EntityID getIssuingEntityID() {
return issuingEntityID;
}
public void setCollidingEntityID(EntityID pCollidingEntityID) {
collidingEntityID = pCollidingEntityID;
}
public EntityID getCollidingEntityID() {
return collidingEntityID;
}
public void setEventID(EventIdentifier pEventID) {
eventID = pEventID;
}
public EventIdentifier getEventID() {
return eventID;
}
public void setCollisionType(short pCollisionType) {
collisionType = pCollisionType;
}
public short getCollisionType() {
return collisionType;
}
public void setPad(byte pPad) {
pad = pPad;
}
public byte getPad() {
return pad;
}
public void setVelocity(Vector3Float pVelocity) {
velocity = pVelocity;
}
public Vector3Float getVelocity() {
return velocity;
}
public void setMass(float pMass) {
mass = pMass;
}
public float getMass() {
return mass;
}
public void setLocation(Vector3Float pLocation) {
location = pLocation;
}
public Vector3Float getLocation() {
return location;
}
public void marshal(DataOutputStream dos) {
super.marshal(dos);
try {
issuingEntityID.marshal(dos);
collidingEntityID.marshal(dos);
eventID.marshal(dos);
dos.writeByte((byte) collisionType);
dos.writeByte((byte) pad);
velocity.marshal(dos);
dos.writeFloat((float) mass);
location.marshal(dos);
} // end try
catch (Exception e) {
System.out.println(e);
}
} // end of marshal method
public void unmarshal(DataInputStream dis) {
super.unmarshal(dis);
try {
issuingEntityID.unmarshal(dis);
collidingEntityID.unmarshal(dis);
eventID.unmarshal(dis);
collisionType = (short) dis.readUnsignedByte();
pad = dis.readByte();
velocity.unmarshal(dis);
mass = dis.readFloat();
location.unmarshal(dis);
} // 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);
issuingEntityID.marshal(buff);
collidingEntityID.marshal(buff);
eventID.marshal(buff);
buff.put((byte) collisionType);
buff.put((byte) pad);
velocity.marshal(buff);
buff.putFloat((float) mass);
location.marshal(buff);
} // 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);
issuingEntityID.unmarshal(buff);
collidingEntityID.unmarshal(buff);
eventID.unmarshal(buff);
collisionType = (short) (buff.get() & 0xFF);
pad = buff.get();
velocity.unmarshal(buff);
mass = buff.getFloat();
location.unmarshal(buff);
} // 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 CollisionPdu)) {
return false;
}
final CollisionPdu rhs = (CollisionPdu) obj;
if (!(issuingEntityID.equals(rhs.issuingEntityID))) {
ivarsEqual = false;
}
if (!(collidingEntityID.equals(rhs.collidingEntityID))) {
ivarsEqual = false;
}
if (!(eventID.equals(rhs.eventID))) {
ivarsEqual = false;
}
if (!(collisionType == rhs.collisionType)) {
ivarsEqual = false;
}
if (!(pad == rhs.pad)) {
ivarsEqual = false;
}
if (!(velocity.equals(rhs.velocity))) {
ivarsEqual = false;
}
if (!(mass == rhs.mass)) {
ivarsEqual = false;
}
if (!(location.equals(rhs.location))) {
ivarsEqual = false;
}
return ivarsEqual && super.equalsImpl(rhs);
}
} // end of class
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