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Merge branch 'Story1117_Course_Boundary_Collision' into 'develop'

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Checked if a boat has crossed the boundary/course limit, if so, bounce the boat back.

# Boundary crossing detection
* if a boat has crossed the boundary, it will be bounced back to where it has came from

# Testing
* Manual testing has been done.
* Boats have bounced back when collides with other boats, mark or boundary. 

#story[1117] #pair[hyi25, zyt10]

See merge request !60
This commit is contained in:
Michael Rausch
2017-08-16 17:25:14 +12:00
parent 07a39722fb fa68a5fdff
commit e9e7f306cd
3 changed files with 81 additions and 21 deletions
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src/main/java/seng302/gameServer/GameState.java
+72 -14
View File
@@ -6,8 +6,12 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import seng302.gameServer.server.messages.BoatAction;
import seng302.gameServer.server.messages.BoatStatus;
import seng302.gameServer.server.messages.MarkRoundingMessage;
@@ -16,6 +20,7 @@ import seng302.gameServer.server.messages.Message;
import seng302.gameServer.server.messages.RoundingBoatStatus;
import seng302.gameServer.server.messages.YachtEventCodeMessage;
import seng302.model.GeoPoint;
import seng302.model.Limit;
import seng302.model.Player;
import seng302.model.PolarTable;
import seng302.model.ServerYacht;
@@ -23,6 +28,7 @@ import seng302.model.mark.CompoundMark;
import seng302.model.mark.Mark;
import seng302.model.mark.MarkOrder;
import seng302.utilities.GeoUtility;
import seng302.utilities.XMLParser;
/**
* A Static class to hold information about the current state of the game (model)
@@ -33,6 +39,7 @@ public class GameState implements Runnable {
@FunctionalInterface
interface NewMessageListener {
void notify(Message message);
}
@@ -59,6 +66,7 @@ public class GameState implements Runnable {
private static MarkOrder markOrder;
private static long startTime;
private static Set<Mark> marks;
private static List<Limit> courseLimit;
private static List<NewMessageListener> markListeners;
@@ -81,7 +89,7 @@ public class GameState implements Runnable {
yachts = new HashMap<>();
players = new ArrayList<>();
GameState.hostIpAddress = hostIpAddress;
;
currentStage = GameStages.LOBBYING;
isRaceStarted = false;
//set this when game stage changes to prerace
@@ -95,13 +103,29 @@ public class GameState implements Runnable {
new Thread(this, "GameState").start(); //Run the auto updates on the game state
marks = new MarkOrder().getAllMarks();
setCourseLimit("/server_config/race.xml");
}
private void setCourseLimit(String url) {
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setNamespaceAware(true);
DocumentBuilder documentBuilder;
Document document = null;
try {
documentBuilder = documentBuilderFactory.newDocumentBuilder();
document = documentBuilder.parse(new InputSource(getClass().getResourceAsStream(url)));
} catch (Exception e) {
// sorry, we have to catch general one, otherwise we have to catch five different exceptions.
logger.trace("Failed to load course limit for boundary collision detection.", e);
}
courseLimit = XMLParser.parseRace(document).getCourseLimit();
}
public static String getHostIpAddress() {
return hostIpAddress;
}
public static Set<Mark> getMarks(){
public static Set<Mark> getMarks() {
return Collections.unmodifiableSet(marks);
}
@@ -145,7 +169,7 @@ public class GameState implements Runnable {
return markOrder;
}
public static long getStartTime(){
public static long getStartTime() {
return startTime;
}
@@ -244,7 +268,7 @@ public class GameState implements Runnable {
yacht.runAutoPilot();
yacht.updateLocation(timeInterval);
if (yacht.getBoatStatus() != BoatStatus.FINISHED) {
checkForCollision(yacht);
checkCollision(yacht);
checkForLegProgression(yacht);
raceFinished = false;
}
@@ -255,9 +279,28 @@ public class GameState implements Runnable {
}
}
/**
* Check if the yacht has crossed the course limit
*
* @param yacht the yacht to be tested
* @return a boolean value of if there is a boundary collision
*/
private static Boolean checkBoundaryCollision(ServerYacht yacht) {
for (int i = 0; i < courseLimit.size() - 1; i++) {
if (GeoUtility.checkCrossedLine(courseLimit.get(i), courseLimit.get(i + 1),
yacht.getLastLocation(), yacht.getLocation()) != 0) {
return true;
}
}
if (GeoUtility.checkCrossedLine(courseLimit.get(courseLimit.size() - 1), courseLimit.get(0),
yacht.getLastLocation(), yacht.getLocation()) != 0) {
return true;
}
return false;
}
public static void checkForCollision(ServerYacht serverYacht) {
ServerYacht collidedYacht = checkCollision(serverYacht);
public static void checkCollision(ServerYacht serverYacht) {
ServerYacht collidedYacht = checkYachtCollision(serverYacht);
if (collidedYacht != null) {
GeoPoint originalLocation = serverYacht.getLocation();
serverYacht.setLocation(
@@ -276,7 +319,7 @@ public class GameState implements Runnable {
new YachtEventCodeMessage(serverYacht.getSourceId())
);
} else {
Mark collidedMark = markCollidedWith(serverYacht);
Mark collidedMark = checkMarkCollision(serverYacht);
if (collidedMark != null) {
serverYacht.setLocation(
calculateBounceBack(serverYacht, collidedMark, BOUNCE_DISTANCE_MARK)
@@ -287,6 +330,17 @@ public class GameState implements Runnable {
notifyMessageListeners(
new YachtEventCodeMessage(serverYacht.getSourceId())
);
} else if (checkBoundaryCollision(serverYacht)) {
serverYacht.setLocation(
calculateBounceBack(serverYacht, serverYacht.getLocation(),
BOUNCE_DISTANCE_YACHT)
);
serverYacht.setCurrentVelocity(
serverYacht.getCurrentVelocity() * COLLISION_VELOCITY_PENALTY
);
notifyMessageListeners(
new YachtEventCodeMessage(serverYacht.getSourceId())
);
}
}
}
@@ -311,7 +365,7 @@ public class GameState implements Runnable {
yacht.changeVelocity(-velocity / 200);
} else if (velocity > 100) {
yacht.changeVelocity(-velocity / 50);
} else if (velocity <= 100){
} else if (velocity <= 100) {
yacht.setCurrentVelocity(0d);
}
}
@@ -353,6 +407,7 @@ public class GameState implements Runnable {
/**
* 4 Different cases of progression in the race 1 - Passing the start line 2 - Passing any
* in-race Gate 3 - Passing any in-race Mark 4 - Passing the finish line
*
* @param yacht the current yacht to check for progression
*/
private void checkForLegProgression(ServerYacht yacht) {
@@ -516,7 +571,7 @@ public class GameState implements Runnable {
}
private static Mark markCollidedWith(ServerYacht yacht) {
private static Mark checkMarkCollision(ServerYacht yacht) {
Set<Mark> marksInRace = GameState.getMarks();
for (Mark mark : marksInRace) {
if (GeoUtility.getDistance(yacht.getLocation(), mark)
@@ -532,12 +587,14 @@ public class GameState implements Runnable {
*
* @return The boats new position
*/
private static GeoPoint calculateBounceBack(ServerYacht yacht, GeoPoint collidedWith, Double bounceDistance) {
Double heading = GeoUtility.getBearing(yacht.getLocation(), collidedWith);
private static GeoPoint calculateBounceBack(ServerYacht yacht, GeoPoint collidedWith,
Double bounceDistance) {
Double heading = GeoUtility.getBearing(yacht.getLastLocation(), collidedWith);
// Invert heading
heading -= 180;
Integer newHeading = Math.floorMod(heading.intValue(), 360);
return GeoUtility.getGeoCoordinate(yacht.getLocation(), newHeading.doubleValue(), bounceDistance);
return GeoUtility
.getGeoCoordinate(yacht.getLocation(), newHeading.doubleValue(), bounceDistance);
}
/**
@@ -546,11 +603,12 @@ public class GameState implements Runnable {
*
* @return yacht to compare to all other yachts.
*/
private static ServerYacht checkCollision(ServerYacht yacht) {
private static ServerYacht checkYachtCollision(ServerYacht yacht) {
for (ServerYacht otherYacht : GameState.getYachts().values()) {
if (otherYacht != yacht) {
Double distance = GeoUtility.getDistance(otherYacht.getLocation(), yacht.getLocation());
Double distance = GeoUtility
.getDistance(otherYacht.getLocation(), yacht.getLocation());
if (distance < YACHT_COLLISION_DISTANCE) {
return otherYacht;
}