---
# System prepended metadata

title: Untitled

---

```
namespace CSharpDiscovery.Quest04
{
    public class Car:Vehicule
    {
        public string Model { get; set; }
        public Car()
        {
            Model = "Unknown";
        }
        public Car (string Model, string brand, string color, int CurrentSpeed):base(brand, color, CurrentSpeed)
        {
            this.Model = Model;
        }
        public override string ToString()
        {
            return string.Format("{0} {1} {2}", Color, Brand, Model);
        }
        public override void Accelerate(int Speed)
        {
            if (CurrentSpeed + Speed < 200)
            {
                CurrentSpeed += Speed;
            }
            else
            {
                CurrentSpeed = 200;
            }
        }
        public override void Brake(int BrakePower)
        {
            if (CurrentSpeed - BrakePower > 0)
            {
                CurrentSpeed -= BrakePower;
            }
            else
            {
                CurrentSpeed = 0;
            }
        }

    }
}
```
```
       public int GetDistance(PointOfInterest other)
        {
            double rlat1 = Math.PI * Latitude / 180;
            double rlat2 = Math.PI * other.Latitude / 180;
            double rtheta = (Longitude - other.Longitude) * Math.PI / 180;
            double dist =
                Math.Sin(rlat1) * Math.Sin(rlat2) + Math.Cos(rlat1) *
                Math.Cos(rlat2) * Math.Cos(rtheta);
            dist = Math.Acos(dist);
            dist = dist * 180 / Math.PI * 60 * 1.1515 * 1.609344;
            return Convert.ToInt32(dist);
        }
```
```
namespace CSharpDiscovery.Quest03
{
    public class PointOfInterest
    {
        public string Name { get; set; }
        public Double Latitude { get; set; }
        public Double Longitude { get; set; }
        public static string GoogleMapsUrlTemplate {get;} = "https://www.google.com/maps/place/{0}/@{1},{2},15z/";

        public PointOfInterest()
        {
            Name = "Bordeaux Ynov Campus";
            Latitude = 44.854186;
            Longitude = -0.5663056;
            
        }
        public PointOfInterest(string name, double latitude, double longitude)
        {
            Name = name;
            Latitude = latitude;
            Longitude = longitude;
        }
        public string GetGoogleMapsUrl()
        {
            return string.Format(GoogleMapsUrlTemplate, Name.Replace(" ", "+"), Latitude, Longitude);
        }
            public override string ToString()
        {
            return string.Format("{0} (Lat={1}, Long={2})", Name, Latitude, Longitude);
        }
```