Files
Party-Parrots-At-Sea/src/main/java/seng302/visualiser/GameView.java
T

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24 KiB
Java

package seng302.visualiser;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ThreadLocalRandom;
import javafx.animation.AnimationTimer;
import javafx.application.Platform;
import javafx.collections.ObservableList;
import javafx.geometry.Point2D;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.image.ImageView;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Polygon;
import javafx.scene.text.Text;
import seng302.model.Colors;
import seng302.model.GeoPoint;
import seng302.model.Limit;
import seng302.model.Yacht;
import seng302.model.mark.CompoundMark;
import seng302.model.mark.Corner;
import seng302.model.mark.Mark;
import seng302.utilities.GeoUtility;
import seng302.visualiser.fxObjects.*;
import seng302.visualiser.map.Boundary;
import seng302.visualiser.map.CanvasMap;
/**
* Created by cir27 on 20/07/17.
*/
public class GameView extends Pane {
private double bufferSize = 50;
private double panelWidth = 1260; // it should be 1280 but, minors 40 to cancel the bias.
private double panelHeight = 960;
private double canvasWidth = 1100;
private double canvasHeight = 920;
private boolean horizontalInversion = false;
private double distanceScaleFactor;
private ScaleDirection scaleDirection;
private GeoPoint minLatPoint, minLonPoint, maxLatPoint, maxLonPoint;
private double referencePointX, referencePointY;
private double metersPerPixelX, metersPerPixelY;
private Text fpsDisplay = new Text();
private Polygon raceBorder = new CourseBoundary();
/* Note that if either of these is null then values for it have not been added and the other
should be used as the limits of the map. */
private List<Limit> borderPoints;
private Map<Mark, Marker> markerObjects;
private Map<Yacht, BoatObject> boatObjects = new HashMap<>();
private Map<Yacht, AnnotationBox> annotations = new HashMap<>();
private ObservableList<Node> gameObjects;
private Group annotationsGroup = new Group();
private Group wakesGroup = new Group();
private Group boatObjectGroup = new Group();
private Group trails = new Group();
private Group markers = new Group();
private ImageView mapImage = new ImageView();
//FRAME RATE
private AnimationTimer timer;
private int NUM_SAMPLES = 10;
private final long[] frameTimes = new long[NUM_SAMPLES];
private Double frameRate = 60.0;
private int frameTimeIndex = 0;
private boolean arrayFilled = false;
private enum ScaleDirection {
HORIZONTAL,
VERTICAL
}
public GameView () {
gameObjects = this.getChildren();
// create image view for map, bind panel size to image
gameObjects.add(mapImage);
fpsDisplay.setLayoutX(5);
fpsDisplay.setLayoutY(20);
fpsDisplay.setStrokeWidth(2);
gameObjects.add(fpsDisplay);
gameObjects.add(raceBorder);
gameObjects.add(markers);
initializeTimer();
}
private void initializeTimer () {
Arrays.fill(frameTimes, 1_000_000_000 / 60);
timer = new AnimationTimer() {
private long lastTime = 0;
private int FPSCount = 30;
private Double frameRate = 60.0;
private int index = 0;
private boolean arrayFilled = false;
private long sum = 1_000_000_000 / 3;
@Override
public void handle(long now) {
if (lastTime == 0) {
lastTime = now;
} else {
if (now - lastTime >= (1e8 / 60)) { //Fix for framerate going above 60 when minimized
long oldFrameTime = frameTimes[frameTimeIndex];
frameTimes[frameTimeIndex] = now;
frameTimeIndex = (frameTimeIndex + 1) % frameTimes.length;
if (frameTimeIndex == 0) {
arrayFilled = true;
}
long elapsedNanos;
if (arrayFilled) {
elapsedNanos = now - oldFrameTime;
long elapsedNanosPerFrame = elapsedNanos / frameTimes.length;
frameRate = 1_000_000_000.0 / elapsedNanosPerFrame;
if (FPSCount-- == 0) {
FPSCount = 30;
drawFps(frameRate);
}
}
lastTime = now;
}
}
// Platform.runLater(() ->
// boatObjects.forEach((boat, boatObject) -> boatObject.updateLocation())
// );
}
};
}
/**
* First find the top right and bottom left points' geo locations, then retrieve
* map from google to display on image view. - Haoming 22/5/2017
*/
private void drawGoogleMap() {
findMetersPerPixel();
Point2D topLeftPoint = findScaledXY(maxLatPoint.getLat(), minLonPoint.getLng());
// distance from top left extreme to panel origin (top left corner)
double distanceFromTopLeftToOrigin = Math.sqrt(
Math.pow(topLeftPoint.getX() * metersPerPixelX, 2) + Math
.pow(topLeftPoint.getY() * metersPerPixelY, 2));
// angle from top left extreme to panel origin
double bearingFromTopLeftToOrigin = Math
.toDegrees(Math.atan2(-topLeftPoint.getX(), topLeftPoint.getY()));
// the top left extreme
GeoPoint topLeftPos = new GeoPoint(maxLatPoint.getLat(), minLonPoint.getLng());
GeoPoint originPos = GeoUtility
.getGeoCoordinate(topLeftPos, bearingFromTopLeftToOrigin, distanceFromTopLeftToOrigin);
// distance from origin corner to bottom right corner of the panel
double distanceFromOriginToBottomRight = Math.sqrt(
Math.pow(panelHeight * metersPerPixelY, 2) + Math
.pow(panelWidth * metersPerPixelX, 2));
double bearingFromOriginToBottomRight = Math
.toDegrees(Math.atan2(panelWidth, -panelHeight));
GeoPoint bottomRightPos = GeoUtility
.getGeoCoordinate(originPos, bearingFromOriginToBottomRight,
distanceFromOriginToBottomRight);
Boundary boundary = new Boundary(originPos.getLat(), bottomRightPos.getLng(),
bottomRightPos.getLat(), originPos.getLng());
CanvasMap canvasMap = new CanvasMap(boundary);
mapImage.setImage(canvasMap.getMapImage());
mapImage.fitWidthProperty().bind(((AnchorPane) this.getParent()).heightProperty());
mapImage.fitHeightProperty().bind(((AnchorPane) this.getParent()).heightProperty());
}
/**
* Adds a course to the GameView. The view is scaled accordingly unless a border is set in which
* case the course is added relative ot the border.
*
* @param newCourse the mark objects that make up the course.
* @param sequence The sequence the marks travel through
*/
public void updateCourse(List<CompoundMark> newCourse, List<Corner> sequence) {
markerObjects = new HashMap<>();
final List<Gate> gates = new ArrayList<>();
Paint colour = Color.BLACK;
//Creates new markers
for (CompoundMark cMark : newCourse) {
//Set start and end colour
if (cMark.getId() == sequence.get(0).getCompoundMarkID()) {
colour = Color.GREEN;
} else if (cMark.getId() == sequence.get(sequence.size() - 1).getCompoundMarkID()) {
colour = Color.RED;
}
//Create mark dots
for (Mark mark : cMark.getMarks()) {
makeAndBindMarker(mark, colour);
}
//Create gate line
if (cMark.isGate()) {
for (int i = 1; i < cMark.getMarks().size(); i++) {
gates.add(
makeAndBindGate(
markerObjects.get(cMark.getSubMark(i)),
markerObjects.get(cMark.getSubMark(i+1)),
colour
)
);
}
}
colour = Color.BLACK;
}
//Scale race to markers if there is no border.
if (borderPoints == null) {
rescaleRace(new ArrayList<>(markerObjects.keySet()));
}
//Move the Markers to initial position.
markerObjects.forEach(((mark, marker) -> {
Point2D p2d = findScaledXY(mark.getLat(), mark.getLng());
marker.setLayoutX(p2d.getX());
marker.setLayoutY(p2d.getY());
}));
Platform.runLater(() -> {
markers.getChildren().clear();
markers.getChildren().addAll(gates);
markers.getChildren().addAll(markerObjects.values());
});
}
/**
* Creates a new Marker and binds it's position to the given Mark.
*
* @param observableMark The mark to bind the marker to.
* @param colour The desired colour of the mark
*/
private void makeAndBindMarker(Mark observableMark, Paint colour) {
Marker marker = new Marker(colour);
marker.constructArrows(MarkArrowFactory.RoundingSide.PORT, ThreadLocalRandom.current().nextDouble(91, 180), ThreadLocalRandom.current().nextDouble(1, 90));
markerObjects.put(observableMark, marker);
observableMark.addPositionListener((mark, lat, lon) -> {
Point2D p2d = findScaledXY(lat, lon);
markerObjects.get(mark).setLayoutX(p2d.getX());
markerObjects.get(mark).setLayoutY(p2d.getY());
});
}
/**
* Creates a new gate connecting the given marks.
*
* @param m1 The first Mark of the gate.
* @param m2 The second Mark of the gate.
* @param colour The desired colour of the gate.
* @return the new gate.
*/
private Gate makeAndBindGate(Marker m1, Marker m2, Paint colour) {
Gate gate = new Gate(colour);
gate.startXProperty().bind(
m1.layoutXProperty()
);
gate.startYProperty().bind(
m1.layoutYProperty()
);
gate.endXProperty().bind(
m2.layoutXProperty()
);
gate.endYProperty().bind(
m2.layoutYProperty()
);
return gate;
}
/**
* Adds a border to the GameView and rescales to the size of the border, does not rescale if a
* border already exists. Assumes the border is larger than the course.
*
* @param border the race border to be drawn.
*/
public void updateBorder(List<Limit> border) {
if (borderPoints == null) {
borderPoints = border;
rescaleRace(new ArrayList<>(borderPoints));
}
List<Double> boundaryPoints = new ArrayList<>();
for (Limit limit : border) {
Point2D location = findScaledXY(limit.getLat(), limit.getLng());
boundaryPoints.add(location.getX());
boundaryPoints.add(location.getY());
}
raceBorder.getPoints().setAll(boundaryPoints);
}
/**
* Rescales the race to the size of the window.
*
* @param limitingCoordinates the set of geo points that contains the extremities of the race.
*/
private void rescaleRace(List<GeoPoint> limitingCoordinates) {
//Check is called once to avoid unnecessarily change the course limits once the race is running
findMinMaxPoint(limitingCoordinates);
double minLonToMaxLon = scaleRaceExtremities();
calculateReferencePointLocation(minLonToMaxLon);
// drawGoogleMap();
}
/**
* Draws all the boats.
* @param yachts The yachts to set in the race
*/
public void setBoats(List<Yacht> yachts) {
BoatObject newBoat;
final List<Group> wakes = new ArrayList<>();
for (Yacht yacht : yachts) {
Paint colour = Colors.getColor();
newBoat = new BoatObject();
newBoat.setFill(colour);
boatObjects.put(yacht, newBoat);
createAndBindAnnotationBox(yacht, colour);
// wakesGroup.getChildren().add(newBoat.getWake());
wakes.add(newBoat.getWake());
boatObjectGroup.getChildren().add(newBoat);
trails.getChildren().add(newBoat.getTrail());
// TODO: 1/08/17 Make this less vile to look at.
yacht.addLocationListener((boat, lat, lon, heading, velocity) ->{
BoatObject bo = boatObjects.get(boat);
Point2D p2d = findScaledXY(lat, lon);
bo.moveTo(p2d.getX(), p2d.getY(), heading, velocity);
// annotations.get(boat).setLayoutX(p2d.getX());
// annotations.get(boat).setLayoutY(p2d.getY());
// annotations.get(boat).setLocation(100d, 100d);
annotations.get(boat).setLocation(p2d.getX(), p2d.getY());
bo.setTrajectory(
heading,
velocity,
metersPerPixelX,
metersPerPixelY);
});
}
annotationsGroup.getChildren().addAll(annotations.values());
Platform.runLater(() -> {
gameObjects.addAll(trails);
gameObjects.addAll(wakes);
gameObjects.addAll(annotationsGroup);
gameObjects.addAll(boatObjectGroup);
});
}
private void createAndBindAnnotationBox (Yacht yacht, Paint colour) {
AnnotationBox newAnnotation = new AnnotationBox();
newAnnotation.setFill(colour);
newAnnotation.addAnnotation(
"name", "Player: " + yacht.getShortName()
);
// newAnnotation.addAnnotation(
// "velocity",
// yacht.getVelocityProperty(),
// (velocity) -> String.format("Speed: %.2f ms", velocity.doubleValue())
// );
// newAnnotation.addAnnotation(
// "nextMark",
// yacht.timeTillNextProperty(),
// (time) -> {
// DateFormat format = new SimpleDateFormat("mm:ss");
// return format.format(time);
// }
// );
// newAnnotation.addAnnotation(
// "lastMark",
// yacht.timeTillNextProperty(),
// (time) -> {
// DateFormat format = new SimpleDateFormat("mm:ss");
// return format.format(time);
// }
// );
annotations.put(yacht, newAnnotation);
}
private void drawFps(Double fps){
Platform.runLater(() -> fpsDisplay.setText(String.format("%d FPS", Math.round(fps))));
}
/**
* Sets the class variables minLatPoint, maxLatPoint, minLonPoint, maxLonPoint to the point
* with the leftmost point, rightmost point, southern most point and northern most point
* respectively.
*/
private void findMinMaxPoint(List<GeoPoint> points) {
List<GeoPoint> sortedPoints = new ArrayList<>(points);
sortedPoints.sort(Comparator.comparingDouble(GeoPoint::getLat));
minLatPoint = new GeoPoint(sortedPoints.get(0).getLat(), sortedPoints.get(0).getLng());
GeoPoint maxLat = sortedPoints.get(sortedPoints.size()-1);
maxLatPoint = new GeoPoint(maxLat.getLat(), maxLat.getLng());
sortedPoints.sort(Comparator.comparingDouble(GeoPoint::getLng));
minLonPoint = new GeoPoint(sortedPoints.get(0).getLat(), sortedPoints.get(0).getLng());
GeoPoint maxLon = sortedPoints.get(sortedPoints.size()-1);
maxLonPoint = new GeoPoint(maxLon.getLat(), maxLon.getLng());
if (maxLonPoint.getLng() - minLonPoint.getLng() > 180) {
horizontalInversion = true;
}
}
/**
* Calculates the location of a reference point, this is always the point with minimum latitude,
* in relation to the canvas.
*
* @param minLonToMaxLon The horizontal distance between the point of minimum longitude to
* maximum longitude.
*/
private void calculateReferencePointLocation(double minLonToMaxLon) {
GeoPoint referencePoint = minLatPoint;
double referenceAngle;
if (scaleDirection == ScaleDirection.HORIZONTAL) {
referenceAngle = Math.abs(
GeoUtility.getBearingRad(referencePoint, minLonPoint)
);
referencePointX = bufferSize + distanceScaleFactor * Math.sin(referenceAngle) * GeoUtility.getDistance(referencePoint, minLonPoint);
referenceAngle = Math.abs(GeoUtility.getDistance(referencePoint, maxLatPoint));
referencePointY = canvasHeight - (bufferSize + bufferSize);
referencePointY -= distanceScaleFactor * Math.cos(referenceAngle) * GeoUtility.getDistance(referencePoint, maxLatPoint);
referencePointY = referencePointY / 2;
referencePointY += bufferSize;
referencePointY += distanceScaleFactor * Math.cos(referenceAngle) * GeoUtility.getDistance(referencePoint, maxLatPoint);
} else {
referencePointY = canvasHeight - bufferSize;
referenceAngle = Math.abs(
Math.toRadians(
GeoUtility.getDistance(referencePoint, minLonPoint)
)
);
referencePointX = bufferSize;
referencePointX += distanceScaleFactor * Math.sin(referenceAngle) * GeoUtility.getDistance(referencePoint, minLonPoint);
referencePointX += ((canvasWidth - (bufferSize + bufferSize)) - (minLonToMaxLon * distanceScaleFactor)) / 2;
}
if(horizontalInversion) {
referencePointX = canvasWidth - bufferSize - (referencePointX - bufferSize);
}
}
/**
* Finds the scale factor necessary to fit all race markers within the onscreen map and assigns
* it to distanceScaleFactor Returns the max horizontal distance of the map.
*/
private double scaleRaceExtremities() {
double vertAngle = Math.abs(
GeoUtility.getBearingRad(minLatPoint, maxLatPoint)
);
double vertDistance =
Math.cos(vertAngle) * GeoUtility.getDistance(minLatPoint, maxLatPoint);
double horiAngle = Math.abs(
GeoUtility.getBearingRad(minLonPoint, maxLonPoint)
);
if (horiAngle <= (Math.PI / 2)) {
horiAngle = (Math.PI / 2) - horiAngle;
} else {
horiAngle = horiAngle - (Math.PI / 2);
}
double horiDistance =
Math.cos(horiAngle) * GeoUtility.getDistance(minLonPoint, maxLonPoint);
double vertScale = (canvasHeight - (bufferSize + bufferSize)) / vertDistance;
if ((horiDistance * vertScale) > (canvasWidth - (bufferSize + bufferSize))) {
distanceScaleFactor = (canvasWidth - (bufferSize + bufferSize)) / horiDistance;
scaleDirection = ScaleDirection.HORIZONTAL;
} else {
distanceScaleFactor = vertScale;
scaleDirection = ScaleDirection.VERTICAL;
}
return horiDistance;
}
private Point2D findScaledXY(GeoPoint unscaled) {
return findScaledXY(unscaled.getLat(), unscaled.getLng());
}
private Point2D findScaledXY (double unscaledLat, double unscaledLon) {
double distanceFromReference;
double angleFromReference;
double xAxisLocation = referencePointX;
double yAxisLocation = referencePointY;
angleFromReference = GeoUtility.getBearingRad(
minLatPoint, new GeoPoint(unscaledLat, unscaledLon)
);
distanceFromReference = GeoUtility.getDistance(
minLatPoint, new GeoPoint(unscaledLat, unscaledLon)
);
// System.out.println("distanceFromReference = " + distanceFromReference);
if (angleFromReference >= 0 && angleFromReference <= Math.PI / 2) {
xAxisLocation += Math.round(distanceScaleFactor * Math.sin(angleFromReference) * distanceFromReference);
yAxisLocation -= Math.round(distanceScaleFactor * Math.cos(angleFromReference) * distanceFromReference);
} else if (angleFromReference >= 0) {
angleFromReference = angleFromReference - Math.PI / 2;
xAxisLocation += Math.round(distanceScaleFactor * Math.cos(angleFromReference) * distanceFromReference);
yAxisLocation += Math.round(distanceScaleFactor * Math.sin(angleFromReference) * distanceFromReference);
} else if (angleFromReference < 0 && angleFromReference >= -Math.PI / 2) {
angleFromReference = Math.abs(angleFromReference);
xAxisLocation -= Math.round(distanceScaleFactor * Math.sin(angleFromReference) * distanceFromReference);
yAxisLocation -= Math.round(distanceScaleFactor * Math.cos(angleFromReference) * distanceFromReference);
} else {
angleFromReference = Math.abs(angleFromReference) - Math.PI / 2;
xAxisLocation -= Math.round(distanceScaleFactor * Math.cos(angleFromReference) * distanceFromReference);
yAxisLocation += Math.round(distanceScaleFactor * Math.sin(angleFromReference) * distanceFromReference);
}
if(horizontalInversion) {
xAxisLocation = canvasWidth - bufferSize - (xAxisLocation - bufferSize);
}
// System.out.println("yAxisLocation = " + yAxisLocation + " " + unscaledLat);
// System.out.println("xAxisLocation = " + xAxisLocation + " " + unscaledLon);
return new Point2D(xAxisLocation, yAxisLocation);
}
/**
* Find the number of meters per pixel.
*/
private void findMetersPerPixel() {
Point2D p1, p2;
GeoPoint g1, g2;
double theta, distance, dx, dy, dHorizontal, dVertical;
g1 = new GeoPoint(maxLatPoint.getLat(), minLonPoint.getLng());
g2 = new GeoPoint(minLatPoint.getLat(), maxLatPoint.getLng());
p1 = findScaledXY(new GeoPoint(maxLatPoint.getLat(), minLonPoint.getLng()));
p2 = findScaledXY(new GeoPoint(minLatPoint.getLat(), maxLatPoint.getLng()));
theta = GeoUtility.getBearingRad(g1, g2);
distance = GeoUtility.getDistance(g1, g2);
dHorizontal = Math.abs(Math.sin(theta) * distance);
dVertical = Math.abs(Math.cos(theta) * distance);
dx = Math.abs(p1.getX() - p2.getX());
dy = Math.abs(p1.getY() - p2.getY());
metersPerPixelX = dHorizontal / dx;
metersPerPixelY = dVertical / dy;
}
public void setAnnotationVisibilities (boolean teamName, boolean velocity, boolean estTime,
boolean legTime, boolean trail, boolean wake) {
for (BoatObject boatObject : boatObjects.values()) {
boatObject.setVisibility(teamName, velocity, estTime, legTime, trail, wake);
}
for (AnnotationBox ag : annotations.values()) {
ag.setAnnotationVisibility("name", teamName);
ag.setAnnotationVisibility("velocity", velocity);
ag.setAnnotationVisibility("nextMark", estTime);
ag.setAnnotationVisibility("lastMark", legTime);
}
}
public void setFPSVisibility (boolean visibility) {
fpsDisplay.setVisible(visibility);
}
public void selectBoat (Yacht selectedYacht) {
boatObjects.forEach((boat, group) ->
group.setIsSelected(boat == selectedYacht)
);
}
public void pauseRace () {
timer.stop();
}
public void startRace () {
timer.start();
}
public void setBoatAsPlayer (Yacht playerYacht) {
boatObjects.get(playerYacht).setAsPlayer();
annotations.get(playerYacht).addAnnotation(
"velocity",
playerYacht.getVelocityProperty(),
(velocity) -> String.format("Speed: %.2f ms", velocity.doubleValue())
);
Platform.runLater(() -> {
boatObjectGroup.getChildren().remove(boatObjects.get(playerYacht));
gameObjects.add(boatObjects.get(playerYacht));
annotationsGroup.getChildren().remove(annotations.get(playerYacht));
gameObjects.add(annotations.get(playerYacht));
});
}
}