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package com.benburwell.planes.gui.aircraftmap;
import com.benburwell.planes.gui.GraphicsTheme;
import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
/**
* Created by ben on 11/19/16.
*/
public class AircraftMap extends JPanel {
// geographic constants
public final double MAX_LATITUDE = 90.0;
public final double MIN_LATITUDE = -90.0;
public final double MAX_LONGITUDE = 180.0;
public final double MIN_LONGITUDE = -180.0;
public final double NAUTICAL_MILES_PER_DEGREE_LATITUDE = 60.0;
// drawing constants
public final float FONT_SIZE = 12;
public final int TEXT_PADDING = 5;
public final int NUMBER_OF_RANGE_RINGS = 5;
// map manipulation constants
public final int MIN_ZOOM_PIXELS_PER_MILE = 1;
public final int MAX_ZOOM_PIXELS_PER_MILE = 2000;
public final double PAN_INTERVAL_MILES = 1.0;
// instance fields
private List<Drawable> planes = new ArrayList<>();
private double centerLatitude;
private double centerLongitude;
private int pixelsPerNauticalMile = 10;
/**
* Construct a map
*/
public AircraftMap() {
super();
this.setBackground(GraphicsTheme.Colors.BASE_1);
this.setBorder(BorderFactory.createEmptyBorder());
this.setCenter(0, 0);
}
/**
* Paint the ViewComponent on a Graphics instance
*
* @param g the graphics context to paint on
*/
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
this.drawPositionAndScale(g);
this.drawRange(g);
this.planes.forEach(item -> item.drawOn(g, this));
}
public void drawPositionAndScale(Graphics g) {
Font currentFont = g.getFont();
Font newFont = currentFont.deriveFont(FONT_SIZE);
g.setFont(newFont);
g.setColor(GraphicsTheme.Colors.BLUE);
g.drawString(String.format("%08.5f N", this.centerLatitude), TEXT_PADDING, (int) FONT_SIZE + TEXT_PADDING);
g.drawString(String.format("%08.5f E", this.centerLongitude), TEXT_PADDING, (int) FONT_SIZE * 2 + TEXT_PADDING);
g.drawString(String.format("%d nm", this.getRangeRadius()), TEXT_PADDING, (int) FONT_SIZE * 3 + TEXT_PADDING);
}
public int getRangeRadius() {
double milesHigh = this.getHeight() / this.getPixelsPerNauticalMile();
double milesWide = this.getWidth() / this.getPixelsPerNauticalMile();
double screenMiles = Math.min(milesHigh, milesWide);
int milesPerRing = (int) screenMiles / NUMBER_OF_RANGE_RINGS;
return milesPerRing;
}
public List<Integer> getRangeRadii() {
int rangeRadius = this.getRangeRadius();
List<Integer> radii = new ArrayList<>();
for (int ringNumber = 1; ringNumber <= NUMBER_OF_RANGE_RINGS; ringNumber++) {
radii.add(rangeRadius * ringNumber);
}
return radii;
}
public void drawRange(Graphics g) {
int centerX = this.getWidth() / 2;
int centerY = this.getHeight() / 2;
g.setColor(GraphicsTheme.Colors.BASE_3);
for (Integer radius : this.getRangeRadii()) {
int pixelRadius = (int) (this.getPixelsPerNauticalMile() * radius);
g.drawOval(centerX - pixelRadius, centerY - pixelRadius, pixelRadius * 2, pixelRadius * 2);
}
g.drawLine(centerX, 0, centerX, this.getHeight());
g.drawLine(0, centerY, this.getWidth(), centerY);
}
public void setPlanes(List<Drawable> planes) {
this.planes = planes;
this.redraw();
}
public void redraw() {
this.invalidate();
this.validate();
this.repaint();
}
public void setCenter(double latitude, double longitude) {
this.centerLatitude = latitude;
this.centerLongitude = longitude;
this.redraw();
}
public double getCenterLatitude() {
return this.centerLatitude;
}
public double getCenterLongitude() {
return this.centerLongitude;
}
public double getPixelsPerDegreeLatitude() {
return this.pixelsPerNauticalMile * NAUTICAL_MILES_PER_DEGREE_LATITUDE;
}
public double getPixelsPerDegreeLongitude() {
return this.pixelsPerNauticalMile * this.getNauticalMilesPerDegreeLongitude();
}
public double getNauticalMilesPerDegreeLongitude() {
double milesPerDegree = Math.abs(Math.cos(Math.toRadians(this.centerLatitude)) * NAUTICAL_MILES_PER_DEGREE_LATITUDE);
return milesPerDegree;
}
public double getPixelsPerNauticalMile() {
return this.pixelsPerNauticalMile;
}
public void zoomIn() {
this.pixelsPerNauticalMile = Math.min(MAX_ZOOM_PIXELS_PER_MILE, this.pixelsPerNauticalMile * 2);
this.redraw();
}
public void zoomOut() {
this.pixelsPerNauticalMile = Math.max(MIN_ZOOM_PIXELS_PER_MILE, this.pixelsPerNauticalMile / 2);
this.redraw();
}
public void moveEast() {
double degreesToMove = PAN_INTERVAL_MILES / this.getNauticalMilesPerDegreeLongitude();
this.centerLongitude = Math.min(this.centerLongitude + degreesToMove, MAX_LONGITUDE);
this.redraw();
}
public void moveWest() {
double degreesToMove = PAN_INTERVAL_MILES / this.getNauticalMilesPerDegreeLongitude();
this.centerLongitude = Math.max(this.centerLongitude - degreesToMove, MIN_LONGITUDE);
this.redraw();
}
public void moveNorth() {
double degreesToMove = PAN_INTERVAL_MILES / NAUTICAL_MILES_PER_DEGREE_LATITUDE;
this.centerLatitude = Math.min(this.centerLatitude + degreesToMove, MAX_LATITUDE);
this.redraw();
}
public void moveSouth() {
double degreesToMove = PAN_INTERVAL_MILES / NAUTICAL_MILES_PER_DEGREE_LATITUDE;
this.centerLatitude = Math.max(this.centerLatitude - degreesToMove, MIN_LATITUDE);
this.redraw();
}
}
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