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Partially removed VMG optimisation, separated server-specific functionality

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from MockRace into RaceServer.

#story[1094]
This commit is contained in:
Connor Taylor-Brown
2017-08-02 23:39:13 +12:00
parent b258e94a54
commit 0466292bd0
4 changed files with 185 additions and 238 deletions
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racevisionGame/src/main/java/mock/model/MockBoat.java
+2 -13
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@@ -135,20 +135,9 @@ public class MockBoat extends Boat {
/**
* Moves the boat meters forward in the direction that it is facing
* @param meters The number of meters to move forward.
* @param milliseconds The number of milliseconds to advance the boat's timers by.
*
*/
public void moveForwards(double meters, long milliseconds) {
//Update the boat's time since last tack.
this.setTimeSinceTackChange(this.getTimeSinceTackChange() + milliseconds);
//Update the time into the current leg.
this.setTimeElapsedInCurrentLeg(this.getTimeElapsedInCurrentLeg() + milliseconds);
//Update the distance into the current leg.
this.setDistanceTravelledInLeg(this.getDistanceTravelledInLeg() + meters);
public void moveForwards(double meters) {
//Updates the current position of the boat.
GPSCoordinate newPosition = GPSCoordinate.calculateNewPosition(this.getCurrentPosition(), meters, Azimuth.fromBearing(this.getBearing()));
this.setCurrentPosition(newPosition);
racevisionGame/src/main/java/mock/model/MockRace.java
+26 -213
View File
@@ -15,7 +15,6 @@ import shared.model.*;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalUnit;
import java.util.*;
import static java.lang.Math.cos;
@@ -27,6 +26,7 @@ import static java.lang.Math.cos;
* Is responsible for simulating the race, and sending messages to a MockOutput instance.
*/
public class MockRace extends Race {
private RaceServer server;
/**
* An observable list of boats in the race.
@@ -82,6 +82,8 @@ public class MockRace extends Race {
//Wind.
this.setWind(windGenerator.generateBaselineWind());
this.server = new RaceServer(this, latestMessages);
}
/**
@@ -122,88 +124,6 @@ public class MockRace extends Race {
}
/**
* Parse the compound marker boats through mock output.
*/
private void parseMarks() {
for (CompoundMark compoundMark : this.compoundMarks) {
//Get the individual marks from the compound mark.
Mark mark1 = compoundMark.getMark1();
Mark mark2 = compoundMark.getMark2();
//If they aren't null, parse them (some compound marks only have one mark).
if (mark1 != null) {
this.parseIndividualMark(mark1);
}
if (mark2 != null) {
this.parseIndividualMark(mark2);
}
}
}
/**
* Parses an individual marker boat, and sends it to mockOutput.
* @param mark The marker boat to parse.
*/
private void parseIndividualMark(Mark mark) {
//Create message.
BoatLocation boatLocation = new BoatLocation(
mark.getSourceID(),
mark.getPosition().getLatitude(),
mark.getPosition().getLongitude(),
this.boatLocationSequenceNumber,
0, 0,
this.raceClock.getCurrentTimeMilli());
//Iterates the sequence number.
this.boatLocationSequenceNumber++;
this.latestMessages.setBoatLocation(boatLocation);
}
/**
* Parse the boats in the race, and send it to mockOutput.
*/
private void parseBoatLocations() {
//Parse each boat.
for (MockBoat boat : this.boats) {
this.parseIndividualBoatLocation(boat);
}
}
/**
* Parses an individual boat, and sends it to mockOutput.
* @param boat The boat to parse.
*/
private void parseIndividualBoatLocation(MockBoat boat) {
BoatLocation boatLocation = new BoatLocation(
boat.getSourceID(),
boat.getCurrentPosition().getLatitude(),
boat.getCurrentPosition().getLongitude(),
this.boatLocationSequenceNumber,
boat.getBearing().degrees(),
boat.getCurrentSpeed(),
this.raceClock.getCurrentTimeMilli());
//Iterates the sequence number.
this.boatLocationSequenceNumber++;
this.latestMessages.setBoatLocation(boatLocation);
}
/**
* Updates the race time to a specified value, in milliseconds since the unix epoch.
* @param currentTime Milliseconds since unix epoch.
@@ -241,48 +161,6 @@ public class MockRace extends Race {
}
}
/**
* Parses the race status, and sends it to mockOutput.
*/
private void parseRaceStatus() {
//A race status message contains a list of boat statuses.
List<BoatStatus> boatStatuses = new ArrayList<>();
//Add each boat status to the status list.
for (MockBoat boat : this.boats) {
BoatStatus boatStatus = new BoatStatus(
boat.getSourceID(),
boat.getStatus(),
boat.getCurrentLeg().getLegNumber(),
boat.getEstimatedTimeAtNextMark().toInstant().toEpochMilli() );
boatStatuses.add(boatStatus);
}
//Convert wind direction and speed to ints. //TODO this conversion should be done inside the racestatus class.
int windDirectionInt = AC35UnitConverter.encodeHeading(this.getWindDirection().degrees());
int windSpeedInt = (int) (this.getWindSpeed() * Constants.KnotsToMMPerSecond);
//Create race status object, and send it.
RaceStatus raceStatus = new RaceStatus(
System.currentTimeMillis(),
this.raceId,
this.getRaceStatusEnum().getValue(),
this.raceClock.getStartingTimeMilli(),
windDirectionInt,
windSpeedInt,
this.getRaceType().getValue(),
boatStatuses);
this.latestMessages.setRaceStatus(raceStatus);
}
@@ -330,16 +208,16 @@ public class MockRace extends Race {
setBoatsTimeNextMark(raceClock.getCurrentTime());
//Parse the boat locations.
parseBoatLocations();
server.parseBoatLocations();
//Parse the marks.
parseMarks();
server.parseMarks();
// Change wind direction
changeWindDirection();
//Parse the race status.
parseRaceStatus();
server.parseRaceStatus();
if (getRaceStatusEnum() == RaceStatusEnum.STARTED) {
@@ -414,13 +292,13 @@ public class MockRace extends Race {
changeWindDirection();
//Parse the boat locations.
parseBoatLocations();
server.parseBoatLocations();
//Parse the marks.
parseMarks();
server.parseMarks();
//Parse the race status.
parseRaceStatus();
server.parseRaceStatus();
//Update the last frame time.
@@ -437,7 +315,7 @@ public class MockRace extends Race {
@Override
public void handle(long now) {
parseRaceStatus();
server.parseRaceStatus();
if (iters > 500) {
stop();
@@ -452,7 +330,7 @@ public class MockRace extends Race {
* This sets their starting positions and current legs.
*/
@Override
protected void initialiseBoats() {
public void initialiseBoats() {
//Gets the starting positions of the boats.
List<GPSCoordinate> startingPositions = getSpreadStartingPositions();
@@ -497,7 +375,7 @@ public class MockRace extends Race {
*
* @return A list of starting positions.
*/
public List<GPSCoordinate> getSpreadStartingPositions() {
private List<GPSCoordinate> getSpreadStartingPositions() {
//The first compound marker of the race - the starting gate.
CompoundMark compoundMark = this.legs.get(0).getStartCompoundMark();
@@ -539,23 +417,6 @@ public class MockRace extends Race {
}
/**
* Calculates a boat's VMG.
* @param boat The boat to calculate VMG for.
* @return VMG for the specified boat.
*/
private VMG calculateVMG(MockBoat boat) {
//Find the VMG inside these bounds.
VMG bestVMG = boat.getPolars().calculateVMG(this.getWindDirection(), this.getWindSpeed(), boat.calculateBearingToNextMarker(), Bearing.fromDegrees(0d), Bearing.fromDegrees(359.99999d));
return bestVMG;
}
/**
* Determines whether or not a given VMG improves the velocity of a boat, if it were currently using currentVMG.
* @param currentVMG The current VMG of the boat.
@@ -607,7 +468,7 @@ public class MockRace extends Race {
* @param updatePeriodMilliseconds The time, in milliseconds, since the last update.
* @param totalElapsedMilliseconds The total number of milliseconds that have elapsed since the start of the race.
*/
protected void updatePosition(MockBoat boat, long updatePeriodMilliseconds, long totalElapsedMilliseconds) {
public void updatePosition(MockBoat boat, long updatePeriodMilliseconds, long totalElapsedMilliseconds) {
//Checks if the current boat has finished the race or not.
boolean finish = this.isLastLeg(boat.getCurrentLeg());
@@ -623,12 +484,18 @@ public class MockRace extends Race {
//Move the boat forwards that many meters, and advances its time counters by enough milliseconds.
boat.moveForwards(distanceTravelledMeters, updatePeriodMilliseconds * this.scaleFactor);
boat.moveForwards(distanceTravelledMeters);
long tackPeriod = 15000;
if (boat.getTimeSinceTackChange() > tackPeriod) {
//Calculate the new VMG.
VMG newVMG = this.calculateVMG(boat);
VMG newVMG = boat.getPolars().calculateVMG(
this.getWindDirection(),
this.getWindSpeed(),
boat.calculateBearingToNextMarker(),
Bearing.fromDegrees(0d),
Bearing.fromDegrees(359.99999d));
//If the new vmg improves velocity, use it.
@@ -639,56 +506,6 @@ public class MockRace extends Race {
}
this.updateEstimatedTime(boat);
//Check the boats position (update leg and stuff).
this.checkPosition(boat, totalElapsedMilliseconds);
}
}
/**
* Checks if a boat has finished any legs, or has pulled out of race (DNF).
* @param boat The boat to check.
* @param timeElapsed The total time, in milliseconds, that has elapsed since the race started.
*/
protected void checkPosition(MockBoat boat, long timeElapsed) {
//The distance, in nautical miles, within which the boat needs to get in order to consider that it has reached the marker.
double epsilonNauticalMiles = 100.0 / Constants.NMToMetersConversion; //100 meters. TODO should be more like 5-10.
if (boat.calculateDistanceToNextMarker() < epsilonNauticalMiles) {
//Boat has reached its target marker, and has moved on to a new leg.
//Calculate how much the boat overshot the marker by.
double overshootMeters = boat.calculateDistanceToNextMarker();
//Move boat on to next leg.
Leg nextLeg = this.legs.get(boat.getCurrentLeg().getLegNumber() + 1);
boat.setCurrentLeg(nextLeg);
//Add overshoot distance into the distance travelled for the next leg.
boat.setDistanceTravelledInLeg(overshootMeters);
//Setting a high value for this allows the boat to immediately do a large turn, as it needs to in order to get to the next mark.
boat.setTimeSinceTackChange(999999);
//Check if the boat has finished or stopped racing.
if (this.isLastLeg(boat.getCurrentLeg())) {
//Boat has finished.
boat.setTimeFinished(timeElapsed);
boat.setCurrentSpeed(0);
boat.setStatus(BoatStatusEnum.FINISHED);
}
}
}
@@ -723,18 +540,10 @@ public class MockRace extends Race {
return boats;
}
/**
* Initialises the wind bearing with the value of the windBaselineBearing.
*/
protected void initialiseWindDirection() {
//Set the starting bearing.
this.setWind(windGenerator.generateBaselineWind());
}
/**
* Changes the wind direction randomly, while keeping it within [windLowerBound, windUpperBound].
*/
protected void changeWindDirection() {
public void changeWindDirection() {
Wind nextWind = windGenerator.generateNextWind(raceWind.getValue());
@@ -762,4 +571,8 @@ public class MockRace extends Race {
}
}
public List<CompoundMark> getCompoundMarks() {
return compoundMarks;
}
}
racevisionGame/src/main/java/mock/model/RaceServer.java
+153
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@@ -0,0 +1,153 @@
package mock.model;
import network.Messages.BoatLocation;
import network.Messages.BoatStatus;
import network.Messages.LatestMessages;
import network.Messages.RaceStatus;
import network.Utils.AC35UnitConverter;
import shared.model.CompoundMark;
import shared.model.Constants;
import shared.model.Mark;
import java.util.ArrayList;
import java.util.List;
/**
* Created by connortaylorbrown on 2/08/17.
*/
public class RaceServer {
private MockRace race;
private LatestMessages latestMessages;
/**
* The sequence number of the latest RaceStatus message sent or received.
*/
private int raceStatusSequenceNumber = 1;
/**
* The sequence number of the latest BoatLocation message sent or received.
*/
private int boatLocationSequenceNumber = 1;
public RaceServer(MockRace race, LatestMessages latestMessages) {
this.race = race;
this.latestMessages = latestMessages;
}
/**
* Parses an individual marker boat, and sends it to mockOutput.
* @param mark The marker boat to parse.
*/
private void parseIndividualMark(Mark mark) {
//Create message.
BoatLocation boatLocation = new BoatLocation(
mark.getSourceID(),
mark.getPosition().getLatitude(),
mark.getPosition().getLongitude(),
this.boatLocationSequenceNumber,
0, 0,
race.getRaceClock().getCurrentTimeMilli());
//Iterates the sequence number.
this.boatLocationSequenceNumber++;
this.latestMessages.setBoatLocation(boatLocation);
}
/**
* Parse the compound marker boats through mock output.
*/
public void parseMarks() {
for (CompoundMark compoundMark : race.getCompoundMarks()) {
//Get the individual marks from the compound mark.
Mark mark1 = compoundMark.getMark1();
Mark mark2 = compoundMark.getMark2();
//If they aren't null, parse them (some compound marks only have one mark).
if (mark1 != null) {
this.parseIndividualMark(mark1);
}
if (mark2 != null) {
this.parseIndividualMark(mark2);
}
}
}
/**
* Parse the boats in the race, and send it to mockOutput.
*/
public void parseBoatLocations() {
//Parse each boat.
for (MockBoat boat : race.getBoats()) {
this.parseIndividualBoatLocation(boat);
}
}
/**
* Parses an individual boat, and sends it to mockOutput.
* @param boat The boat to parse.
*/
private void parseIndividualBoatLocation(MockBoat boat) {
BoatLocation boatLocation = new BoatLocation(
boat.getSourceID(),
boat.getCurrentPosition().getLatitude(),
boat.getCurrentPosition().getLongitude(),
this.boatLocationSequenceNumber,
boat.getBearing().degrees(),
boat.getCurrentSpeed(),
race.getRaceClock().getCurrentTimeMilli());
//Iterates the sequence number.
this.boatLocationSequenceNumber++;
this.latestMessages.setBoatLocation(boatLocation);
}
/**
* Parses the race status, and sends it to mockOutput.
*/
public void parseRaceStatus() {
//A race status message contains a list of boat statuses.
List<BoatStatus> boatStatuses = new ArrayList<>();
//Add each boat status to the status list.
for (MockBoat boat : race.getBoats()) {
BoatStatus boatStatus = new BoatStatus(
boat.getSourceID(),
boat.getStatus(),
boat.getCurrentLeg().getLegNumber(),
boat.getEstimatedTimeAtNextMark().toInstant().toEpochMilli() );
boatStatuses.add(boatStatus);
}
//Convert wind direction and speed to ints. //TODO this conversion should be done inside the racestatus class.
int windDirectionInt = AC35UnitConverter.encodeHeading(race.getWindDirection().degrees());
int windSpeedInt = (int) (race.getWindSpeed() * Constants.KnotsToMMPerSecond);
//Create race status object, and send it.
RaceStatus raceStatus = new RaceStatus(
System.currentTimeMillis(),
race.getRaceId(),
race.getRaceStatusEnum().getValue(),
race.getRaceClock().getStartingTimeMilli(),
windDirectionInt,
windSpeedInt,
race.getRaceType().getValue(),
boatStatuses);
this.latestMessages.setRaceStatus(raceStatus);
}
}