cdx
Class StateTable

java.lang.Object
  cdx.StateTable

public class StateTable
extends java.lang.Object

The class StateTable records the state of the previous frame. Allocated CallSign objects and Vector3d objects for positions are held in mission memory.

Field Summary

CallSign[]	allocatedCallSigns The pre-allocated callsigns
Vector3d[]	allocatedVectors The pre-allocated vectors
int	usedSlots To record the used pairs of callsign/vector

Constructor Summary

StateTable()
Constructor that initialise CHahsMap, callsign and vectors.

Method Summary

Vector3d	get(CallSign callsign) Method to return a position by its callsign
java.util.Set	getCallSigns() Return a set of all callsigns
void	put(CallSign callsign, float x, float y, float z) Put a callsign and the related vector(x,y,z) into the StateTable.
Vector3d	remove(CallSign callsign) Method to remove a postion from the StateTable by its callsign

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

allocatedCallSigns

public CallSign[] allocatedCallSigns

The pre-allocated callsigns

allocatedVectors

public Vector3d[] allocatedVectors

The pre-allocated vectors

usedSlots

public int usedSlots

To record the used pairs of callsign/vector

Constructor Detail

StateTable

public StateTable()

Constructor that initialise CHahsMap, callsign and vectors.

Method Detail

getCallSigns

public java.util.Set getCallSigns()

Return a set of all callsigns

put

public void put(CallSign callsign,
                float x,
                float y,
                float z)

Put a callsign and the related vector(x,y,z) into the StateTable. If the callsign has existed, it updates the value; if not, add in as a new entry.

Parameters:

callsign - a callsign of aircraft

x - x axis of the postion

y - y axis of the position

z - z axis of the position

get

public Vector3d get(CallSign callsign)

Method to return a position by its callsign

Parameters:

callsign - the callsign for aircraft

Returns:

a postion

remove

public Vector3d remove(CallSign callsign)

Method to remove a postion from the StateTable by its callsign

Parameters:

callsign - the aircraft to be removed from the table