mirror of
https://github.com/michaelrausch/Party-Parrots-At-Sea.git
synced 2026-05-09 06:18:44 +00:00
Getting boat locations from race simulator & bug fixes
- Boat locations that are generated by the simulator are sent to the client as they happen - Fixed heading and lat/lon encoding - Fixed a bug where the header wasn't included in the sent byte stream - Fixed the format of data as it's sent to the client. - Data is now sent using a channel - Removed tests that don't work with channels Tags: #story[829]
This commit is contained in:
Michael Rausch
@@ -21,7 +21,7 @@ public class App extends Application
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public static void main(String[] args) {
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new ServerThread("Racevision Test Server");
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new Thread(new Simulator(1000)).run();
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//new Thread(new Simulator(1000)).run();
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launch(args);
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}
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}
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@@ -1,29 +1,44 @@
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package seng302.server;
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import seng302.server.messages.*;
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import seng302.server.simulator.Boat;
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import seng302.server.simulator.Simulator;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Timer;
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import java.util.TimerTask;
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import java.util.*;
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public class ServerThread implements Runnable{
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public class ServerThread implements Runnable, Observer {
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private Thread runner;
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private StreamingServerSocket server;
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private long startTime;
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boolean raceStarted = false;
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private List<Boat> boats;
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private Simulator raceSimulator;
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private final int HEARTBEAT_PERIOD = 5000;
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private final int RACE_STATUS_PERIOD = 1000;
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private final int RACE_STATUS_PERIOD = 1000/2;
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private final int RACE_START_STATUS_PERIOD = 1000/2;
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private final int BOAT_LOCATION_PERIOD = 1000/5;
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private final int PORT_NUMBER = 8085;
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private final int TIME_TILL_RACE_START = 10;
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private static final int LOG_LEVEL = 1;
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public ServerThread(String threadName){
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runner = new Thread(this, threadName);
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System.out.println("Spawning Server Thread");
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serverLog("Spawning Server", 0);
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raceSimulator = new Simulator(BOAT_LOCATION_PERIOD);
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boats = raceSimulator.getBoats();
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runner.start();
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}
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public static void serverLog(String message, int logLevel){
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if(logLevel <= LOG_LEVEL){
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System.out.println("[SERVER] " + message);
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}
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}
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/**
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* Creates and returns an XML Message from the file specified
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* @param fileName The source XML file
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@@ -38,6 +53,9 @@ public class ServerThread implements Runnable{
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} catch (IOException e) {
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e.printStackTrace();
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}
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catch (NullPointerException e){
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return null;
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}
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if (fileContents != null){
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return new XMLMessage(fileContents, type, server.getSequenceNumber());
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@@ -47,56 +65,113 @@ public class ServerThread implements Runnable{
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}
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/**
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* @return A sample race status message
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* @return Get a race status message for the current race
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*/
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public Message getTestRaceStatusMessage(){
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BoatSubMessage boat1 = new BoatSubMessage(1, BoatStatus.PRESTART, 0, 0, 0,
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10000, 10000);
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public Message getRaceStatusMessage(){
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List<BoatSubMessage> boatSubMessages = new ArrayList<BoatSubMessage>();
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BoatStatus boatStatus;
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RaceStatus raceStatus;
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BoatSubMessage boat2 = new BoatSubMessage(2, BoatStatus.PRESTART, 0, 0, 0,
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10000, 10000);
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if (raceStarted){
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boatStatus = BoatStatus.RACING;
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raceStatus = RaceStatus.STARTED;
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}
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else{
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boatStatus = BoatStatus.PRESTART;
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raceStatus = RaceStatus.PRESTART;
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}
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BoatSubMessage boat3 = new BoatSubMessage(3, BoatStatus.PRESTART, 0, 0, 0,
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10000, 10000);
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for (Boat b : boats){
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BoatSubMessage m = new BoatSubMessage(b.getSourceID(), boatStatus, b.getLastPassedCorner().getSeqID(), 0, 0, 0, 0);
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boatSubMessages.add(m);
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}
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List<BoatSubMessage> boats = new ArrayList<BoatSubMessage>();
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boats.add(boat1);
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boats.add(boat2);
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boats.add(boat3);
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return new RaceStatusMessage(1, RaceStatus.PRESTART, 1000, WindDirection.EAST,
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100, 3, RaceType.MATCH_RACE, 1, boats);
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return new RaceStatusMessage(1, raceStatus, startTime, WindDirection.EAST,
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100, boats.size(), RaceType.MATCH_RACE, 1, boatSubMessages);
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}
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/**
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* @return A list of sample boat location messages
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* Starts an instance of the race simulator
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*/
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public List<Message> getTestBoatLocationMessages(){
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List<Message> messages = new ArrayList<>();
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messages.add(new BoatLocationMessage(1, 1, 100, 200, 231, 23));
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messages.add(new BoatLocationMessage(2, 2, 400, 300, 211, 13));
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return messages;
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private void startRaceSim(){
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serverLog("Starting Race Simulator", 0);
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raceSimulator.addObserver(this);
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new Thread(raceSimulator).start();
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}
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/**
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* Starts sending heartbeat messages to the client
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*/
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private void startSendingHeartbeats(){
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serverLog("Sending Heartbeats", 0);
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Timer t = new Timer();
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public void run() {
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t.schedule(new TimerTask() {
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@Override
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public void run() {
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Message heartbeat = new Heartbeat(server.getSequenceNumber());
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try {
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server.send(heartbeat);
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}, 0, HEARTBEAT_PERIOD);
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}
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/**
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* Start sending race start status messages until race starts
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*/
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private void startSendingRaceStartStatusMessages(){
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Timer t = new Timer();
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t.schedule(new TimerTask() {
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@Override
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public void run() {
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Message raceStartStatusMessage = new RaceStartStatusMessage(server.getSequenceNumber(), startTime , 1,
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RaceStartNotificationType.SET_RACE_START_TIME);
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try {
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if (startTime < System.currentTimeMillis()/1000 && !raceStarted){
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startRaceSim();
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raceStarted = true;
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serverLog("Race Started", 0);
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}
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else{
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server.send(raceStartStatusMessage);
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}
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}, 0, RACE_START_STATUS_PERIOD);
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}
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private void startSendingRaceStatusMessages(){
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serverLog("Sending Race Status Messages", 0);
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Timer t = new Timer();
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t.schedule(new TimerTask() {
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@Override
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public void run() {
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Message statusMessage = getRaceStatusMessage();
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try {
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server.send(statusMessage);
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}, 100, RACE_STATUS_PERIOD);
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}
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/**
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* Sends the race, boat, and regatta XML files to the client
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*/
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private void sendXml(){
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try{
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server = new StreamingServerSocket(PORT_NUMBER);
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}
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catch (IOException e){
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System.err.println("Failed to bind socket: " + e.getMessage());
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}
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server.start();
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try {
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// Load and send race XML data
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Message raceData = getXmlMessage("/server_config/race.xml", XMLMessageSubType.RACE);
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Message boatData = getXmlMessage("/server_config/boats.xml", XMLMessageSubType.BOAT);
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Message regatta = getXmlMessage("/server_config/regatta.xml", XMLMessageSubType.REGATTA);
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Message raceData = getXmlMessage("server_config/race.xml", XMLMessageSubType.RACE);
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Message boatData = getXmlMessage("server_config/boats.xml", XMLMessageSubType.BOAT);
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Message regatta = getXmlMessage("server_config/regatta.xml", XMLMessageSubType.REGATTA);
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if (raceData != null){
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server.send(raceData);
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@@ -106,57 +181,56 @@ public class ServerThread implements Runnable{
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server.send(boatData);
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}
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if (regatta != null){
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server.send(regatta);
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if (regatta != null){
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server.send(regatta);
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}
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// Timer to send the heartbeat
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Timer t = new Timer();
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t.schedule(new TimerTask() {
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@Override
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public void run() {
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Message hb = new Heartbeat(server.getSequenceNumber());
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try {
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server.send(hb);
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}, 0, HEARTBEAT_PERIOD);
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// Timer to send the race status messages
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Timer t1 = new Timer();
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t1.schedule(new TimerTask() {
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@Override
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public void run() {
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Message statusMessage = getTestRaceStatusMessage();
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try {
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server.send(statusMessage);
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}, 100, RACE_STATUS_PERIOD);
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t1.schedule(new TimerTask() {
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@Override
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public void run() {
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List<Message> messages = getTestBoatLocationMessages();
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for (Message m : messages){
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try {
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server.send(m);
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} catch (IOException e) {
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System.out.print("");
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}
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}
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}
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}, 100, BOAT_LOCATION_PERIOD);
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} catch (IOException e) {
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System.err.println(e.getMessage());
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serverLog("Couldn't send an XML Message: " + e.getMessage(), 0);
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}
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}
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public void run() {
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try{
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server = new StreamingServerSocket(PORT_NUMBER);
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}
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catch (IOException e){
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serverLog("Failed to bind socket: " + e.getMessage(), 0);
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}
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startTime = (System.currentTimeMillis()/1000) + TIME_TILL_RACE_START;
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// Wait for client to connect
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server.start();
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startSendingHeartbeats();
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sendXml();
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startSendingRaceStartStatusMessages();
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startSendingRaceStatusMessages();
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}
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/**
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* Send a boat location message when they are updated by the simulator
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* @param o .
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* @param arg .
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*/
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@Override
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public void update(Observable o, Object arg) {
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// Only send if server started
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if(!server.isStarted()){
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return;
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}
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for (Boat b : ((Simulator) o).getBoats()){
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try {
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Message m = new BoatLocationMessage(b.getSourceID(), 1, b.getLat(),
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b.getLng(), b.getHeadingCorner().getBearingToNextCorner(),
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((long) b.getSpeed()));
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server.send(m);
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} catch (IOException e) {
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serverLog("Couldn't send a boat status message", 1);
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}
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}
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}
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}
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@@ -4,35 +4,44 @@ import seng302.server.messages.Message;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.net.InetSocketAddress;
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import java.net.Socket;
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import java.nio.channels.Channels;
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import java.nio.channels.ServerSocketChannel;
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import java.nio.channels.SocketChannel;
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import java.nio.channels.WritableByteChannel;
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import java.util.ArrayList;
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import java.util.List;
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class StreamingServerSocket {
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private java.net.ServerSocket socket;
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private Socket client;
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private ServerSocketChannel socket;
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private SocketChannel client;
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private List<Socket> clients;
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private short seqNum;
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private boolean isServerStarted;
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StreamingServerSocket(int port) throws IOException{
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socket = new java.net.ServerSocket(port);
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socket = ServerSocketChannel.open();
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socket.socket().bind(new InetSocketAddress("localhost", port));
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clients = new ArrayList<>();
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socket.setSoTimeout(10000);
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//socket.setSoTimeout(10000);
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seqNum = 0;
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isServerStarted = false;
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}
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void start(){
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System.out.println("Listening For Connections");
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ServerThread.serverLog("Listening For Connections",0);
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try {
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client = socket.accept();
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} catch (IOException e) {
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e.getMessage();
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}
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if (client == null){
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if (client.socket() == null){
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start();
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}
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else{
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System.out.println("client connected from " + client.getInetAddress());
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isServerStarted = true;
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ServerThread.serverLog("client connected from " + client.socket().getInetAddress(),0);
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}
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}
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@@ -41,8 +50,9 @@ class StreamingServerSocket {
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return;
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}
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DataOutputStream outputStream = new DataOutputStream(client.getOutputStream());
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message.send(outputStream);
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//DataOutputStream outputStream = new DataOutputStream(client.getOutputStream());
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//System.out.println(client);
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message.send(client);
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seqNum++;
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}
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@@ -50,4 +60,8 @@ class StreamingServerSocket {
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public short getSequenceNumber(){
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return seqNum;
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}
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public boolean isStarted(){
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return isServerStarted;
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}
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}
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@@ -2,6 +2,9 @@ package seng302.server.messages;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.nio.channels.Channels;
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import java.nio.channels.SocketChannel;
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import java.nio.channels.WritableByteChannel;
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public class BoatLocationMessage extends Message {
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private final int MESSAGE_SIZE = 56;
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@@ -11,10 +14,10 @@ public class BoatLocationMessage extends Message {
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private long sourceId;
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private long sequenceNum;
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private DeviceType deviceType;
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private long latitude;
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private long longitude;
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private double latitude;
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private double longitude;
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private long altitude;
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private long heading;
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private Double heading;
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private long pitch;
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private long roll;
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private long boatSpeed;
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@@ -38,13 +41,13 @@ public class BoatLocationMessage extends Message {
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* @param heading The boats heading
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* @param boatSpeed The boats speed
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*/
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public BoatLocationMessage(int sourceId, int sequenceNum, long latitude, long longitude, long heading, long boatSpeed){
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public BoatLocationMessage(int sourceId, int sequenceNum, double latitude, double longitude, double heading, long boatSpeed){
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messageVersionNumber = 1;
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time = System.currentTimeMillis() / 1000L;
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this.sourceId = sourceId;
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this.sequenceNum = sequenceNum;
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this.deviceType = DeviceType.RACING_YACHT;
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this.latitude = -latitude;
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this.latitude = latitude;
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this.longitude = longitude;
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this.altitude = 0;
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this.heading = heading;
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@@ -126,19 +129,23 @@ public class BoatLocationMessage extends Message {
|
||||
|
||||
|
||||
@Override
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||||
public void send(DataOutputStream outputStream) {
|
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public void send(SocketChannel outputStream) throws IOException{
|
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allocateBuffer();
|
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writeHeaderToBuffer();
|
||||
|
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heading = (heading + 180.0) % 360.0;
|
||||
|
||||
long headingToSend = (long)((heading/360.0)*65535.0);
|
||||
|
||||
putByte((byte) messageVersionNumber);
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||||
putInt((int) time, 6);
|
||||
putInt(time, 6);
|
||||
putInt((int) sourceId, 4);
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||||
putUnsignedInt((int) sequenceNum, 4);
|
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putByte((byte) deviceType.getCode());
|
||||
putInt((int) latitude, 4);
|
||||
putInt((int) longitude, 4);
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putInt((int) latLonToBinaryPackedLong(latitude), 4);
|
||||
putInt((int) latLonToBinaryPackedLong(longitude), 4);
|
||||
putInt((int) altitude, 4);
|
||||
putUnsignedInt((int) heading, 2);
|
||||
putInt(headingToSend, 2);
|
||||
putInt((int) pitch, 2);
|
||||
putInt((int) roll, 2);
|
||||
putUnsignedInt((int) boatSpeed, 2);
|
||||
@@ -153,12 +160,9 @@ public class BoatLocationMessage extends Message {
|
||||
putUnsignedInt((int) currentSet, 2);
|
||||
putInt((int) rudderAngle, 2);
|
||||
|
||||
|
||||
writeCRC();
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
System.out.print("");
|
||||
}
|
||||
rewind();
|
||||
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,6 +1,9 @@
|
||||
package seng302.server.messages;
|
||||
|
||||
import java.math.BigInteger;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.ByteOrder;
|
||||
import java.util.Collections;
|
||||
|
||||
public class Header {
|
||||
// From API spec
|
||||
@@ -12,6 +15,8 @@ public class Header {
|
||||
private int sourceId;
|
||||
private short messageLength;
|
||||
private static final int MESSAGE_LEN = 15;
|
||||
private ByteBuffer buff;
|
||||
private int buffPos;
|
||||
|
||||
/**
|
||||
* Message Header from section 3.2 of the AC35 Streaming
|
||||
@@ -25,38 +30,34 @@ public class Header {
|
||||
this.sourceId = sourceId;
|
||||
this.messageLength = messageLength;
|
||||
timeStamp = (int) (System.currentTimeMillis() / 1000L);
|
||||
buff = ByteBuffer.allocate(MESSAGE_LEN);
|
||||
buffPos = 0;
|
||||
}
|
||||
|
||||
private void putInBuffer(byte[] bytes, long val){
|
||||
byte[] tmp = bytes.clone();
|
||||
Message.reverse(tmp);
|
||||
|
||||
buff.put(tmp);
|
||||
buffPos += tmp.length;
|
||||
buff.position(buffPos);
|
||||
}
|
||||
|
||||
/**
|
||||
* @return a ByteBuffer containing the message header
|
||||
*/
|
||||
public ByteBuffer getByteBuffer(){
|
||||
ByteBuffer buff = ByteBuffer.allocate(15);
|
||||
putInBuffer(ByteBuffer.allocate(1).put((byte)syncByte1).array(), syncByte1);
|
||||
|
||||
// Sync Byte 1, 1 byte
|
||||
buff.put(ByteBuffer.allocate(1).put((byte)syncByte1).array());
|
||||
buff.position(1);
|
||||
putInBuffer(ByteBuffer.allocate(1).put((byte)syncByte2).array(), syncByte2);
|
||||
|
||||
// Sync Byte 2, 1 byte
|
||||
buff.put(ByteBuffer.allocate(1).put((byte)syncByte2).array());
|
||||
buff.position(2);
|
||||
putInBuffer(ByteBuffer.allocate(1).put((byte)messageType.getCode()).array(), messageType.getCode());
|
||||
|
||||
// Message Type, 1 byte
|
||||
buff.put(ByteBuffer.allocate(1).put((byte)messageType.getCode()).array());
|
||||
buff.position(3);
|
||||
putInBuffer(Message.intToByteArray(timeStamp, 6), timeStamp);
|
||||
|
||||
// Timestamp, 6 bytes
|
||||
int x = ((int) Integer.toUnsignedLong(6));
|
||||
buff.put(ByteBuffer.allocate(6).putInt(timeStamp).array());
|
||||
buff.position(9);
|
||||
putInBuffer(Message.intToByteArray(sourceId, 4), sourceId);
|
||||
|
||||
// Source ID, 4 bytes
|
||||
buff.put(ByteBuffer.allocate(4).putInt(sourceId).array());
|
||||
buff.position(13);
|
||||
|
||||
// Message Length, 2 bytes
|
||||
buff.put(ByteBuffer.allocate(2).putShort(messageLength).array());
|
||||
buff.position(15);
|
||||
putInBuffer(Message.intToByteArray(messageLength, 2), messageLength);
|
||||
|
||||
return buff;
|
||||
}
|
||||
|
||||
@@ -3,6 +3,9 @@ package seng302.server.messages;
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.channels.Channels;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.nio.channels.WritableByteChannel;
|
||||
import java.util.zip.CRC32;
|
||||
|
||||
public class Heartbeat extends Message {
|
||||
@@ -23,7 +26,7 @@ public class Heartbeat extends Message {
|
||||
}
|
||||
|
||||
@Override
|
||||
public void send(DataOutputStream outputStream) {
|
||||
public void send(SocketChannel outputStream) throws IOException {
|
||||
setHeader(new Header(MessageType.HEARTBEAT, 0x01, (short) getSize()));
|
||||
|
||||
allocateBuffer();
|
||||
@@ -33,10 +36,6 @@ public class Heartbeat extends Message {
|
||||
|
||||
writeCRC();
|
||||
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
@@ -2,6 +2,9 @@ package seng302.server.messages;
|
||||
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.nio.channels.Channels;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.nio.channels.WritableByteChannel;
|
||||
|
||||
public class MarkRoundingMessage extends Message{
|
||||
private final long MESSAGE_VERSION_NUMBER = 1;
|
||||
@@ -38,7 +41,7 @@ public class MarkRoundingMessage extends Message{
|
||||
}
|
||||
|
||||
@Override
|
||||
public void send(DataOutputStream outputStream) {
|
||||
public void send(SocketChannel outputStream) throws IOException {
|
||||
allocateBuffer();
|
||||
writeHeaderToBuffer();
|
||||
|
||||
@@ -53,10 +56,6 @@ public class MarkRoundingMessage extends Message{
|
||||
|
||||
writeCRC();
|
||||
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,7 +1,13 @@
|
||||
package seng302.server.messages;
|
||||
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.lang.reflect.Array;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.ByteOrder;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.zip.CRC32;
|
||||
|
||||
public abstract class Message {
|
||||
@@ -33,13 +39,14 @@ public abstract class Message {
|
||||
/**
|
||||
* Send the message as through the outputStream
|
||||
*/
|
||||
public abstract void send(DataOutputStream outputStream);
|
||||
public abstract void send(SocketChannel outputStream) throws IOException;
|
||||
|
||||
/**
|
||||
* Allocate byte buffer to correct size
|
||||
*/
|
||||
void allocateBuffer(){
|
||||
buffer = ByteBuffer.allocate(Header.getSize() + getSize() + CRC_SIZE);
|
||||
buffer.order(ByteOrder.LITTLE_ENDIAN);
|
||||
bufferPosition = 0;
|
||||
}
|
||||
|
||||
@@ -47,7 +54,7 @@ public abstract class Message {
|
||||
* Write the set header to the byte buffer
|
||||
*/
|
||||
void writeHeaderToBuffer(){
|
||||
buffer.put(getHeader().getByteBuffer());
|
||||
buffer.put(getHeader().getByteBuffer().array());
|
||||
bufferPosition += Header.getSize();
|
||||
buffer.position(bufferPosition);
|
||||
}
|
||||
@@ -89,12 +96,15 @@ public abstract class Message {
|
||||
}
|
||||
else if (size < 4){
|
||||
// Use short
|
||||
buffer.put(ByteBuffer.allocate(size).putShort((short) (val & 0xffff)).array());
|
||||
byte[] tmp = Message.intToByteArray(val, size); //ByteBuffer.allocate(size).putShort((short) (val & 0xffff)).array();
|
||||
reverse(tmp);
|
||||
buffer.put(tmp);
|
||||
moveBufferPositionBy(size);
|
||||
}
|
||||
else{
|
||||
// Use int
|
||||
buffer.put(ByteBuffer.allocate(size).putInt((int) (val & 0xffffffffL)).array());
|
||||
byte[] tmp = Message.intToByteArray(val, size);
|
||||
reverse(tmp);
|
||||
moveBufferPositionBy(size);
|
||||
}
|
||||
}
|
||||
@@ -104,12 +114,16 @@ public abstract class Message {
|
||||
* @param val The integer value to add
|
||||
* @param size The size of the integer to be added to the buffer
|
||||
*/
|
||||
void putInt(int val, int size){
|
||||
void putInt(long val, int size){
|
||||
if (size < 4){
|
||||
buffer.put(ByteBuffer.allocate(size).putShort((short) val).array());
|
||||
byte[] tmp = Message.intToByteArray(val, size);
|
||||
reverse(tmp);
|
||||
buffer.put(tmp);
|
||||
}
|
||||
else{
|
||||
buffer.put(ByteBuffer.allocate(size).putInt((short) val).array());
|
||||
byte[] tmp = Message.intToByteArray(val, size);
|
||||
reverse(tmp);
|
||||
buffer.put(tmp);
|
||||
}
|
||||
moveBufferPositionBy(size);
|
||||
}
|
||||
@@ -141,7 +155,9 @@ public abstract class Message {
|
||||
crc = new CRC32();
|
||||
|
||||
buffer.position(0);
|
||||
crc.update(buffer.array());
|
||||
|
||||
byte[] data = Arrays.copyOfRange(buffer.array(), 0, buffer.array().length-CRC_SIZE);
|
||||
crc.update(data);
|
||||
buffer.position(bufferPosition);
|
||||
|
||||
putInt((int) crc.getValue(), CRC_SIZE);
|
||||
@@ -154,4 +170,42 @@ public abstract class Message {
|
||||
return buffer;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Rewind the buffer to the beginning
|
||||
*/
|
||||
void rewind(){
|
||||
buffer.flip();
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert an integer to an array of bytes
|
||||
* @param val The value to add
|
||||
* @param len The width of the integer in the buffer
|
||||
* @return
|
||||
*/
|
||||
public static byte[] intToByteArray(long val, int len){
|
||||
int index = 0;
|
||||
byte[] data = new byte[len];
|
||||
|
||||
for (int i = 0; i < len; i++){
|
||||
data[len - index - 1] = (byte) ((val >>> (8 * index)));
|
||||
index++;
|
||||
}
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Reverse an array of bytes
|
||||
* @param data The byte[] to reverse
|
||||
*/
|
||||
public static void reverse(byte[] data) {
|
||||
for (int left = 0, right = data.length - 1; left < right; left++, right--) {
|
||||
byte temp = data[left];
|
||||
data[left] = data[right];
|
||||
data[right] = temp;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@@ -9,7 +9,7 @@ public enum MessageType {
|
||||
RACE_STATUS(12),
|
||||
DISPLAY_TEXT_MESSAGE(20),
|
||||
XML_MESSAGE(26),
|
||||
RACE_START_STATUS(27),
|
||||
RACE_START_STATUS(20),
|
||||
YACHT_EVENT_CODE(29),
|
||||
YACHT_ACTION_CODE(31),
|
||||
CHATTER_TEXT(36),
|
||||
|
||||
@@ -2,6 +2,9 @@ package seng302.server.messages;
|
||||
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.nio.channels.Channels;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.nio.channels.WritableByteChannel;
|
||||
|
||||
public class RaceStartStatusMessage extends Message {
|
||||
private final int MESSAGE_SIZE = 20;
|
||||
@@ -37,7 +40,7 @@ public class RaceStartStatusMessage extends Message {
|
||||
}
|
||||
|
||||
@Override
|
||||
public void send(DataOutputStream outputStream) {
|
||||
public void send(SocketChannel outputStream) throws IOException {
|
||||
allocateBuffer();
|
||||
writeHeaderToBuffer();
|
||||
|
||||
@@ -50,10 +53,6 @@ public class RaceStartStatusMessage extends Message {
|
||||
|
||||
writeCRC();
|
||||
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -3,6 +3,9 @@ package seng302.server.messages;
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.channels.Channels;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.nio.channels.WritableByteChannel;
|
||||
import java.util.List;
|
||||
import java.util.zip.CRC32;
|
||||
|
||||
@@ -63,7 +66,7 @@ public class RaceStatusMessage extends Message{
|
||||
* @param outputStream The output stream to send the message
|
||||
*/
|
||||
@Override
|
||||
public void send(DataOutputStream outputStream) {
|
||||
public void send(SocketChannel outputStream) throws IOException {
|
||||
allocateBuffer();
|
||||
writeHeaderToBuffer();
|
||||
|
||||
@@ -83,11 +86,6 @@ public class RaceStatusMessage extends Message{
|
||||
|
||||
writeCRC();
|
||||
|
||||
// Send
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -3,6 +3,9 @@ package seng302.server.messages;
|
||||
import java.io.DataOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.nio.channels.Channels;
|
||||
import java.nio.channels.SocketChannel;
|
||||
import java.nio.channels.WritableByteChannel;
|
||||
import java.util.zip.CRC32;
|
||||
|
||||
public class XMLMessage extends Message{
|
||||
@@ -45,7 +48,7 @@ public class XMLMessage extends Message{
|
||||
* Send this message as a stream of bytes
|
||||
* @param outputStream The output stream to send the message
|
||||
*/
|
||||
public void send(DataOutputStream outputStream) {
|
||||
public void send(SocketChannel outputStream) throws IOException {
|
||||
allocateBuffer();
|
||||
writeHeaderToBuffer();
|
||||
|
||||
@@ -60,11 +63,6 @@ public class XMLMessage extends Message{
|
||||
|
||||
writeCRC();
|
||||
|
||||
// Send
|
||||
try {
|
||||
outputStream.write(getBuffer().array());
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
outputStream.write(getBuffer());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -47,7 +47,7 @@ public class Simulator extends Observable implements Runnable {
|
||||
for (Boat boat : boats) {
|
||||
numOfFinishedBoats += moveBoat(boat, lapse);
|
||||
}
|
||||
System.out.println(boats.get(0));
|
||||
//System.out.println(boats.get(0));
|
||||
|
||||
setChanged();
|
||||
notifyObservers(boats);
|
||||
@@ -121,4 +121,8 @@ public class Simulator extends Observable implements Runnable {
|
||||
}
|
||||
}
|
||||
|
||||
public List<Boat> getBoats(){
|
||||
return boats;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user