# Conflicts: # racevisionGame/src/main/java/mock/model/MockRace.java # racevisionGame/src/main/java/mock/model/RaceLogic.java # racevisionGame/src/main/java/mock/model/RaceState.java # racevisionGame/src/main/java/mock/model/commandFactory/CommandFactory.java # racevisionGame/src/main/java/mock/model/commandFactory/VMGCommand.java # racevisionGame/src/main/java/visualiser/gameController/ControllerServer.javamain
zwu18
8 years ago
commit
3d417c3a40
@ -1,77 +1,196 @@
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package mock.model;
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import javafx.animation.AnimationTimer;
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import mock.model.commandFactory.Command;
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import mock.model.commandFactory.CommandFactory;
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import mock.model.commandFactory.CompositeCommand;
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import network.Messages.Enums.BoatActionEnum;
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import network.Messages.Enums.BoatStatusEnum;
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import network.Messages.Enums.RaceStatusEnum;
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import network.Messages.LatestMessages;
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import shared.dataInput.BoatDataSource;
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import shared.dataInput.RaceDataSource;
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import shared.dataInput.RegattaDataSource;
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import shared.model.*;
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import visualiser.gameController.ControllerServer;
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import java.util.Iterator;
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import java.util.List;
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public class RaceLogic {
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private RaceState raceState;
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import java.util.Observable;
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import java.util.Observer;
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import java.util.Stack;
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public class RaceLogic implements Observer, Runnable {
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/**
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* State of current race modified by this object
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*/
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private MockRace race;
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/**
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* The scale factor of the race.
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* See {@link Constants#RaceTimeScale}.
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* High-level interface to AC35 protocol server
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*/
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private int scaleFactor;
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private RaceServer server;
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private CompositeCommand commands;
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/**
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* Object used to generate changes in wind speed/direction.
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* Initialises race loop with state and server message queue
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* @param race state of race to modify
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* @param messages to send to server
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*/
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private WindGenerator windGenerator;
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public RaceLogic(BoatDataSource boatDataSource, RaceDataSource raceDataSource, RegattaDataSource regattaDataSource, LatestMessages latestMessages, Polars polars, int timeScale) {
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this.raceState = new RaceState(boatDataSource, raceDataSource, regattaDataSource, latestMessages, polars);
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this.raceState.run();
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//Set up wind generator. It may be tidier to create this outside the race (with the values sourced from a data file maybe?) and pass it in.
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this.windGenerator = new WindGenerator(
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Bearing.fromDegrees(225),
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Bearing.fromDegrees(215),
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Bearing.fromDegrees(235),
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12d,
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8d,
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16d );
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raceState.setWind(windGenerator.generateBaselineWind());
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public RaceLogic(MockRace race, LatestMessages messages) {
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this.race = race;
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this.server = new RaceServer(race, messages);
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this.commands = new CompositeCommand();
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}
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private void changeWindDirection() {
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Wind nextWind = windGenerator.generateNextWind(raceState.getWind());
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raceState.setWind(nextWind);
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/**
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* Initialise boats and start countdown timer
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*/
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@Override
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public void run() {
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race.initialiseBoats();
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this.countdownTimer.start();
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}
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/**
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* Returns the number of boats that are still active in the race.
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* They become inactive by either finishing or withdrawing.
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* @return The number of boats still active in the race.
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* Countdown timer until race starts.
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*/
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protected int getNumberOfActiveBoats() {
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protected AnimationTimer countdownTimer = new AnimationTimer() {
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long currentTime = System.currentTimeMillis();
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@Override
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public void handle(long arg0) {
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//Update race time.
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race.updateRaceTime(currentTime);
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//Update the race status based on the current time.
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race.updateRaceStatusEnum();
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int numberOfActiveBoats = 0;
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//Provide boat's with an estimated time at next mark until the race starts.
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race.setBoatsTimeNextMark(race.getRaceClock().getCurrentTime());
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for (MockBoat boat : raceState.getBoats()) {
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//Parse the boat locations.
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server.parseBoatLocations();
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//If the boat is currently racing, count it.
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if (boat.getStatus() == BoatStatusEnum.RACING) {
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numberOfActiveBoats++;
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//Parse the marks.
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server.parseMarks();
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// Change wind direction
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race.changeWindDirection();
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//Parse the race status.
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server.parseRaceStatus();
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if (race.getRaceStatusEnum() == RaceStatusEnum.STARTED) {
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race.setBoatsStatusToRacing();
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raceTimer.start();
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this.stop();
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}
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//Update the animations timer's time.
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currentTime = System.currentTimeMillis();
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}
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};
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return numberOfActiveBoats;
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}
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/**
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* Returns a list of boats in the race.
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* @return List of boats in the race.
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* Timer that runs for the duration of the race, until all boats finish.
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*/
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public List<MockBoat> getBoats() {
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return raceState.getBoats();
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}
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private AnimationTimer raceTimer = new AnimationTimer() {
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/**
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* Start time of loop, in milliseconds.
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*/
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long timeRaceStarted = System.currentTimeMillis();
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/**
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* Current time during a loop iteration.
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*/
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long currentTime = System.currentTimeMillis();
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/**
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* The time of the previous frame, in milliseconds.
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*/
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long lastFrameTime = timeRaceStarted;
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long framePeriod = currentTime - lastFrameTime;
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@Override
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public void handle(long arg0) {
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//Get the current time.
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currentTime = System.currentTimeMillis();
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//Update race time.
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race.updateRaceTime(currentTime);
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//As long as there is at least one boat racing, we still simulate the race.
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if (race.getNumberOfActiveBoats() != 0) {
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//Get the time period of this frame.
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framePeriod = currentTime - lastFrameTime;
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//For each boat, we update its position, and generate a BoatLocationMessage.
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for (MockBoat boat : race.getBoats()) {
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//If it is still racing, update its position.
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if (boat.getStatus() == BoatStatusEnum.RACING) {
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commands.execute();
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race.updatePosition(boat, framePeriod, race.getRaceClock().getDurationMilli());
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}
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}
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} else {
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//Otherwise, the race is over!
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raceFinished.start();
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race.setRaceStatusEnum(RaceStatusEnum.FINISHED);
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this.stop();
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}
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if (race.getNumberOfActiveBoats() != 0) {
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// Change wind direction
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race.changeWindDirection();
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//Parse the boat locations.
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server.parseBoatLocations();
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//Parse the marks.
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server.parseMarks();
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//Parse the race status.
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server.parseRaceStatus();
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//Update the last frame time.
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this.lastFrameTime = currentTime;
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}
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}
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};
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/**
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* Broadcast that the race has finished.
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*/
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protected AnimationTimer raceFinished = new AnimationTimer(){
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int iters = 0;
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@Override
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public void handle(long now) {
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server.parseRaceStatus();
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if (iters > 500) {
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stop();
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}
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iters++;
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}
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};
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@Override
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public void update(Observable o, Object arg) {
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ControllerServer server = (ControllerServer)o;
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BoatActionEnum action = server.getAction();
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MockBoat boat = race.getBoats().get(0);
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commands.addCommand(CommandFactory.createCommand(race, boat, action));
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}
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}
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@ -1,158 +0,0 @@
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package mock.model;
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import network.Messages.Enums.BoatStatusEnum;
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import network.Messages.LatestMessages;
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import shared.dataInput.BoatDataSource;
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import shared.dataInput.RaceDataSource;
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import shared.dataInput.RegattaDataSource;
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import shared.model.*;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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public class RaceState extends Race {
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/**
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* An observable list of boats in the race.
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*/
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private List<MockBoat> boats;
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private Wind wind;
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public RaceState(BoatDataSource boatDataSource, RaceDataSource raceDataSource, RegattaDataSource regattaDataSource, LatestMessages latestMessages, Polars polars) {
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super(boatDataSource, raceDataSource, regattaDataSource, latestMessages);
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this.boats = this.generateMockBoats(boatDataSource.getBoats(), raceDataSource.getParticipants(), polars);
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}
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/**
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* Generates a list of MockBoats given a list of Boats, and a list of participating boats.
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* @param boats The map of Boats describing boats that are potentially in the race. Maps boat sourceID to boat.
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* @param sourceIDs The list of boat sourceIDs describing which specific boats are actually participating.
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* @param polars The polars table to be used for boat simulation.
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* @return A list of MockBoats that are participating in the race.
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*/
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private List<MockBoat> generateMockBoats(Map<Integer, Boat> boats, List<Integer> sourceIDs, Polars polars) {
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List<MockBoat> mockBoats = new ArrayList<>(sourceIDs.size());
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//For each sourceID participating...
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for (int sourceID : sourceIDs) {
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//Get the boat associated with the sourceID.
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Boat boat = boats.get(sourceID);
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//Construct a MockBoat using the Boat and Polars.
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MockBoat mockBoat = new MockBoat(boat, polars);
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mockBoats.add(mockBoat);
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}
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return mockBoats;
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}
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/**
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* Initialise the boats in the race.
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* This sets their starting positions and current legs.
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*/
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@Override
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protected void initialiseBoats() {
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//Gets the starting positions of the boats.
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List<GPSCoordinate> startingPositions = getSpreadStartingPositions();
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//Get iterators for our boat and position lists.
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Iterator<MockBoat> boatIt = this.boats.iterator();
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Iterator<GPSCoordinate> startPositionIt = startingPositions.iterator();
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//Iterate over the pair of lists.
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while (boatIt.hasNext() && startPositionIt.hasNext()) {
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//Get the next boat and position.
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MockBoat boat = boatIt.next();
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GPSCoordinate startPosition = startPositionIt.next();
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//The boat starts on the first leg of the race.
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boat.setCurrentLeg(this.legs.get(0));
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//Boats start with 0 knots speed.
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boat.setCurrentSpeed(0d);
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//Place the boat at its starting position.
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boat.setCurrentPosition(startPosition);
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//Boats start facing their next marker.
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boat.setBearing(boat.calculateBearingToNextMarker());
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//Sets the boats status to prestart - it changes to racing when the race starts.
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boat.setStatus(BoatStatusEnum.PRESTART);
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//We set a large time since tack change so that it calculates a new VMG when the simulation starts.
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boat.setTimeSinceTackChange(999999);
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}
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}
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/**
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* Creates a list of starting positions for the different boats, so they do not appear cramped at the start line.
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*
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* @return A list of starting positions.
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*/
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public List<GPSCoordinate> getSpreadStartingPositions() {
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//The first compound marker of the race - the starting gate.
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CompoundMark compoundMark = this.legs.get(0).getStartCompoundMark();
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//The position of the two markers from the compound marker.
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GPSCoordinate mark1Position = compoundMark.getMark1Position();
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GPSCoordinate mark2Position = compoundMark.getMark2Position();
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//Calculates the azimuth between the two points.
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Azimuth azimuth = GPSCoordinate.calculateAzimuth(mark1Position, mark2Position);
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//Calculates the distance between the two points.
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double distanceMeters = GPSCoordinate.calculateDistanceMeters(mark1Position, mark2Position);
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//The number of boats in the race.
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int numberOfBoats = this.boats.size();
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//Calculates the distance between each boat. We divide by numberOfBoats + 1 to ensure that no boat is placed on one of the starting gate's marks.
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double distanceBetweenBoatsMeters = distanceMeters / (numberOfBoats + 1);
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//List to store coordinates in.
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List<GPSCoordinate> positions = new ArrayList<>();
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//We start spacing boats out from mark 1.
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GPSCoordinate position = mark1Position;
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//For each boat, displace position, and store it.
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for (int i = 0; i < numberOfBoats; i++) {
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position = GPSCoordinate.calculateNewPosition(position, distanceBetweenBoatsMeters, azimuth);
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positions.add(position);
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}
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return positions;
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}
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public void run() {
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initialiseBoats();
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}
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public Wind getWind() {
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return wind;
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}
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public List<MockBoat> getBoats() {
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return boats;
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}
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}
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@ -0,0 +1,14 @@
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package mock.model.commandFactory;
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import mock.model.MockBoat;
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import mock.model.MockRace;
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/**
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* Allows RaceLogic to control MockRace state according to the Command pattern
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*/
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public interface Command {
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/**
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* Execute command - standard method name in pattern
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*/
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void execute();
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}
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@ -0,0 +1,23 @@
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package mock.model.commandFactory;
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import java.util.Stack;
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/**
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* Wraps multiple commands into a composite to execute queued commands during a frame.
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*/
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public class CompositeCommand implements Command {
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private Stack<Command> commands;
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public CompositeCommand() {
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this.commands = new Stack<>();
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}
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public void addCommand(Command command) {
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commands.push(command);
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}
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@Override
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public void execute() {
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while(!commands.isEmpty()) commands.pop().execute();
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}
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}
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@ -0,0 +1,30 @@
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package mock.model.commandFactory;
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import mock.model.MockBoat;
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import mock.model.MockRace;
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import shared.model.Bearing;
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/**
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* Created by connortaylorbrown on 4/08/17.
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*/
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public class WindCommand implements Command {
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private MockRace race;
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private MockBoat boat;
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private int direction;
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public WindCommand(MockRace race, MockBoat boat, boolean upwind) {
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this.race = race;
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this.boat = boat;
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this.direction = upwind? 1 : -1;
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}
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@Override
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public void execute() {
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double wind = race.getWindDirection().degrees();
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double heading = boat.getBearing().degrees();
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double offset = 3;
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if(wind - heading < 0) offset *= -1 * direction;
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boat.setBearing(Bearing.fromDegrees(heading + offset));
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}
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}
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@ -0,0 +1,31 @@
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package mock.model.commandFactory;
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import mock.model.MockRace;
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import network.Messages.Enums.BoatActionEnum;
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import org.junit.Before;
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import org.junit.Test;
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import shared.model.Boat;
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import shared.model.Race;
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import visualiser.model.VisualiserRace;
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import static org.testng.Assert.*;
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/**
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* Created by connortaylorbrown on 4/08/17.
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*/
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public class WindCommandTest {
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private Race race;
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private Boat boat;
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private Command upwind;
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private Command downwind;
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@Before
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public void setUp() {
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boat = new Boat(0, "Bob", "NZ");
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}
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@Test
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public void upwindCommandDecreasesAngle() {
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}
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}
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