package seng302;

/**
 * Created by cbt24 on 15/03/17.
 */
public class RaceMap {
    private double x1, x2, y1, y2;
    private int width, height;

    /**
     * Contructor Method.
     * @param x1 Longitude of the top left point.
     * @param y1 Latitude of the top left point.
     * @param x2 Longitude of the top right point.
     * @param y2 Latitude of the top right point.
     * @param width width that the Canvas the race is to be drawn on is.
     * @param height height that the Canvas the race is to be drawn on is.
     */
    public RaceMap(double y1, double x1, double y2, double x2, int height, int width) {
        this.x1 = x1; this.x2 = x2; this.y1 = y1; this.y2 = y2; this.width = width; this.height = height;
    }

    /**
     * Converts GPS coordinates to coordinates for container
     * @param lat GPS latitude
     * @param lon GPS longitude
     * @return GraphCoordinate (pair of doubles)
     * @see GraphCoordinate
     */
    public GraphCoordinate convertGPS(double lat, double lon) {

        return new GraphCoordinate((int) (width * (lon - x1)  / (x2 - x1)), (int) (height - (height * (lat - y1) / (y2 - y1))));
    }

    /**
     * Converts the GPS Coordinate to GraphCoordinates
     * @param coordinate GPSCoordinate representation of Latitude and Longitude.
     * @return GraphCoordinate that the GPS is coordinates are to be displayed on the map.
     * @see GraphCoordinate
     * @see GPSCoordinate
     */
    public GraphCoordinate convertGPS(GPSCoordinate coordinate) {
        return convertGPS(coordinate.getLatitude(), coordinate.getLongitude());
    }
}