edu.nps.moves.dis7.CollisionElasticPdu Maven / Gradle / Ivy
package edu.nps.moves.dis7;
import java.io.*;
/**
* Information about elastic collisions in a DIS exercise shall be communicated
* using a Collision-Elastic PDU. Section 7.2.4. 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 CollisionElasticPdu 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. This field shall be a valid identifier of an entity or server
* capable of responding to the receipt of this Collision-Elastic PDU. 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 collisionEventID = new EventIdentifier();
/**
* some padding
*/
protected short pad = (short) 0;
/**
* This field shall contain the velocity at the time the collision is
* detected at the point the collision is detected. 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 contactVelocity = 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. This field shall be
* represented by an Entity Coordinate Vector record [see 6.2.95 item a)].
*/
protected Vector3Float locationOfImpact = new Vector3Float();
/**
* These six records represent the six independent components of a positive
* semi-definite matrix formed by pre-multiplying and post-multiplying the
* tensor of inertia, by the anti-symmetric matrix generated by the moment
* arm, and shall be represented by 32-bit floating point numbers (see
* 5.3.4.4)
*/
protected float collisionIntermediateResultXX;
/**
* tensor values
*/
protected float collisionIntermediateResultXY;
/**
* tensor values
*/
protected float collisionIntermediateResultXZ;
/**
* tensor values
*/
protected float collisionIntermediateResultYY;
/**
* tensor values
*/
protected float collisionIntermediateResultYZ;
/**
* tensor values
*/
protected float collisionIntermediateResultZZ;
/**
* This record shall represent the normal vector to the surface at the point
* of collision detection. The surface normal shall be represented in world
* coordinates. This field shall be represented by an Entity Coordinate
* Vector record [see 6.2.95 item a)].
*/
protected Vector3Float unitSurfaceNormal = new Vector3Float();
/**
* This field shall represent the degree to which energy is conserved in a
* collision and shall be represented by a 32-bit floating point number. In
* addition, it represents a free parameter by which simulation application
* developers may "tune" their collision interactions.
*/
protected float coefficientOfRestitution;
/**
* Constructor
*/
public CollisionElasticPdu() {
setPduType((short) 66);
setProtocolFamily((short) 1);
}
public int getMarshalledSize() {
int marshalSize = 0;
marshalSize = super.getMarshalledSize();
marshalSize = marshalSize + issuingEntityID.getMarshalledSize(); // issuingEntityID
marshalSize = marshalSize + collidingEntityID.getMarshalledSize(); // collidingEntityID
marshalSize = marshalSize + collisionEventID.getMarshalledSize(); // collisionEventID
marshalSize = marshalSize + 2; // pad
marshalSize = marshalSize + contactVelocity.getMarshalledSize(); // contactVelocity
marshalSize = marshalSize + 4; // mass
marshalSize = marshalSize + locationOfImpact.getMarshalledSize(); // locationOfImpact
marshalSize = marshalSize + 4; // collisionIntermediateResultXX
marshalSize = marshalSize + 4; // collisionIntermediateResultXY
marshalSize = marshalSize + 4; // collisionIntermediateResultXZ
marshalSize = marshalSize + 4; // collisionIntermediateResultYY
marshalSize = marshalSize + 4; // collisionIntermediateResultYZ
marshalSize = marshalSize + 4; // collisionIntermediateResultZZ
marshalSize = marshalSize + unitSurfaceNormal.getMarshalledSize(); // unitSurfaceNormal
marshalSize = marshalSize + 4; // coefficientOfRestitution
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 setCollisionEventID(EventIdentifier pCollisionEventID) {
collisionEventID = pCollisionEventID;
}
public EventIdentifier getCollisionEventID() {
return collisionEventID;
}
public void setPad(short pPad) {
pad = pPad;
}
public short getPad() {
return pad;
}
public void setContactVelocity(Vector3Float pContactVelocity) {
contactVelocity = pContactVelocity;
}
public Vector3Float getContactVelocity() {
return contactVelocity;
}
public void setMass(float pMass) {
mass = pMass;
}
public float getMass() {
return mass;
}
public void setLocationOfImpact(Vector3Float pLocationOfImpact) {
locationOfImpact = pLocationOfImpact;
}
public Vector3Float getLocationOfImpact() {
return locationOfImpact;
}
public void setCollisionIntermediateResultXX(float pCollisionIntermediateResultXX) {
collisionIntermediateResultXX = pCollisionIntermediateResultXX;
}
public float getCollisionIntermediateResultXX() {
return collisionIntermediateResultXX;
}
public void setCollisionIntermediateResultXY(float pCollisionIntermediateResultXY) {
collisionIntermediateResultXY = pCollisionIntermediateResultXY;
}
public float getCollisionIntermediateResultXY() {
return collisionIntermediateResultXY;
}
public void setCollisionIntermediateResultXZ(float pCollisionIntermediateResultXZ) {
collisionIntermediateResultXZ = pCollisionIntermediateResultXZ;
}
public float getCollisionIntermediateResultXZ() {
return collisionIntermediateResultXZ;
}
public void setCollisionIntermediateResultYY(float pCollisionIntermediateResultYY) {
collisionIntermediateResultYY = pCollisionIntermediateResultYY;
}
public float getCollisionIntermediateResultYY() {
return collisionIntermediateResultYY;
}
public void setCollisionIntermediateResultYZ(float pCollisionIntermediateResultYZ) {
collisionIntermediateResultYZ = pCollisionIntermediateResultYZ;
}
public float getCollisionIntermediateResultYZ() {
return collisionIntermediateResultYZ;
}
public void setCollisionIntermediateResultZZ(float pCollisionIntermediateResultZZ) {
collisionIntermediateResultZZ = pCollisionIntermediateResultZZ;
}
public float getCollisionIntermediateResultZZ() {
return collisionIntermediateResultZZ;
}
public void setUnitSurfaceNormal(Vector3Float pUnitSurfaceNormal) {
unitSurfaceNormal = pUnitSurfaceNormal;
}
public Vector3Float getUnitSurfaceNormal() {
return unitSurfaceNormal;
}
public void setCoefficientOfRestitution(float pCoefficientOfRestitution) {
coefficientOfRestitution = pCoefficientOfRestitution;
}
public float getCoefficientOfRestitution() {
return coefficientOfRestitution;
}
public void marshal(DataOutputStream dos) {
super.marshal(dos);
try {
issuingEntityID.marshal(dos);
collidingEntityID.marshal(dos);
collisionEventID.marshal(dos);
dos.writeShort((short) pad);
contactVelocity.marshal(dos);
dos.writeFloat((float) mass);
locationOfImpact.marshal(dos);
dos.writeFloat((float) collisionIntermediateResultXX);
dos.writeFloat((float) collisionIntermediateResultXY);
dos.writeFloat((float) collisionIntermediateResultXZ);
dos.writeFloat((float) collisionIntermediateResultYY);
dos.writeFloat((float) collisionIntermediateResultYZ);
dos.writeFloat((float) collisionIntermediateResultZZ);
unitSurfaceNormal.marshal(dos);
dos.writeFloat((float) coefficientOfRestitution);
} // 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);
collisionEventID.unmarshal(dis);
pad = dis.readShort();
contactVelocity.unmarshal(dis);
mass = dis.readFloat();
locationOfImpact.unmarshal(dis);
collisionIntermediateResultXX = dis.readFloat();
collisionIntermediateResultXY = dis.readFloat();
collisionIntermediateResultXZ = dis.readFloat();
collisionIntermediateResultYY = dis.readFloat();
collisionIntermediateResultYZ = dis.readFloat();
collisionIntermediateResultZZ = dis.readFloat();
unitSurfaceNormal.unmarshal(dis);
coefficientOfRestitution = dis.readFloat();
} // 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);
collisionEventID.marshal(buff);
buff.putShort((short) pad);
contactVelocity.marshal(buff);
buff.putFloat((float) mass);
locationOfImpact.marshal(buff);
buff.putFloat((float) collisionIntermediateResultXX);
buff.putFloat((float) collisionIntermediateResultXY);
buff.putFloat((float) collisionIntermediateResultXZ);
buff.putFloat((float) collisionIntermediateResultYY);
buff.putFloat((float) collisionIntermediateResultYZ);
buff.putFloat((float) collisionIntermediateResultZZ);
unitSurfaceNormal.marshal(buff);
buff.putFloat((float) coefficientOfRestitution);
} // 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);
collisionEventID.unmarshal(buff);
pad = buff.getShort();
contactVelocity.unmarshal(buff);
mass = buff.getFloat();
locationOfImpact.unmarshal(buff);
collisionIntermediateResultXX = buff.getFloat();
collisionIntermediateResultXY = buff.getFloat();
collisionIntermediateResultXZ = buff.getFloat();
collisionIntermediateResultYY = buff.getFloat();
collisionIntermediateResultYZ = buff.getFloat();
collisionIntermediateResultZZ = buff.getFloat();
unitSurfaceNormal.unmarshal(buff);
coefficientOfRestitution = buff.getFloat();
} // 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 CollisionElasticPdu)) {
return false;
}
final CollisionElasticPdu rhs = (CollisionElasticPdu) obj;
if (!(issuingEntityID.equals(rhs.issuingEntityID))) {
ivarsEqual = false;
}
if (!(collidingEntityID.equals(rhs.collidingEntityID))) {
ivarsEqual = false;
}
if (!(collisionEventID.equals(rhs.collisionEventID))) {
ivarsEqual = false;
}
if (!(pad == rhs.pad)) {
ivarsEqual = false;
}
if (!(contactVelocity.equals(rhs.contactVelocity))) {
ivarsEqual = false;
}
if (!(mass == rhs.mass)) {
ivarsEqual = false;
}
if (!(locationOfImpact.equals(rhs.locationOfImpact))) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultXX == rhs.collisionIntermediateResultXX)) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultXY == rhs.collisionIntermediateResultXY)) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultXZ == rhs.collisionIntermediateResultXZ)) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultYY == rhs.collisionIntermediateResultYY)) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultYZ == rhs.collisionIntermediateResultYZ)) {
ivarsEqual = false;
}
if (!(collisionIntermediateResultZZ == rhs.collisionIntermediateResultZZ)) {
ivarsEqual = false;
}
if (!(unitSurfaceNormal.equals(rhs.unitSurfaceNormal))) {
ivarsEqual = false;
}
if (!(coefficientOfRestitution == rhs.coefficientOfRestitution)) {
ivarsEqual = false;
}
return ivarsEqual && super.equalsImpl(rhs);
}
} // end of class
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