package mock.model;

import shared.model.Bearing;

import java.util.Random;

public class Wind {

    /**
     * Used to generate random numbers when changing the wind direction.
     */
    private int changeWind = 4;

    /**
     * The bearing the wind direction starts at.
     */
    private Bearing windBearing;

    /**
     * The lower bearing angle that the wind may have.
     */
    private Bearing windLowerBound;

    /**
     * The upper bearing angle that the wind may have.
     */
    private Bearing windUpperBound;

    double windSpeed;

    public Wind() {
        this.windBearing = Bearing.fromDegrees(225);
        this.windSpeed = 12;
        this.windLowerBound = Bearing.fromDegrees(215);
        this.windUpperBound = Bearing.fromDegrees(235);
    }

    public Wind(Bearing windBearing, double windSpeed, Bearing windLowerBound, Bearing windUpperBound) {
        this.windBearing = windBearing;
        this.windSpeed = windSpeed;
        this.windLowerBound = windLowerBound;
        this.windUpperBound = windUpperBound;
    }

    /**
     * Changes the wind direction randomly, while keeping it within [windLowerBound, windUpperBound].
     */
    public void changeWindDirection() {

        //Randomly add or remove 0.5 degrees.
        int r = new Random().nextInt(changeWind) + 1;

        if (r == 1) {
            //Add 0.5 degrees to the wind bearing.
            this.windBearing.setDegrees(this.windBearing.degrees() + 0.5);

        } else if (r == 2) {
            //Minus 0.5 degrees from the wind bearing.
            this.windBearing.setDegrees(this.windBearing.degrees() - 0.5);

        }

        //Ensure that the wind is in the correct bounds.
        if (this.windBearing.degrees() > this.windUpperBound.degrees()) {
            this.windBearing.setBearing(this.windUpperBound);

        } else if (this.windBearing.degrees() < this.windLowerBound.degrees()) {
            this.windBearing.setBearing(this.windLowerBound);

        }
    }

    public Bearing getWindDirection() {
        return this.windBearing;
    }

    public double getWindSpeed() {
        return this.windSpeed;
    }

    public void setWindDirection(Bearing windBearing) {
        this.windBearing = windBearing;
    }

    public void setWindSpeed(double windSpeed) {
        this.windSpeed = windSpeed;
    }

    public void setDegrees(double degrees) {
        this.windBearing.setDegrees(degrees);
    }
}