Is there an entity class somewhere?

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C#

I am trying to make a simple basic game by myself.

Is there an Entity Class somewhere?
I started to make an Entity Class by myself, but it strike me, to ask for one already made. I'm thinking, maybe there are some default ones?, that are usable, and i dont have to reinvent the wheel.

In my class for example, I put the folowing:

//[user:F-ES Sitecore] just helped me today with this event here - very useful !

What I have tried:

        public delegate void MoveFinishedHandler();
        public event MoveFinishedHandler Moving; 

        private Timer Timing = new Timer();
        void timer_Tick(object sender, EventArgs e)

public void Render(object sender, PaintEventArgs e)
public float x = 10, y = 10, width, height;
public void Location(float X, float Y)
        private void TextRenderer(object sender, PaintEventArgs e, float element)
        private enum TextMode { Down, Up }
        private void TextRenderer(object sender, PaintEventArgs e, float element, TextMode swichText)
        public float speed = 1;
        public bool showHealth;
        public float health = 100;

        public bool showResourceNumber;
        public float storage = 100;

        private float ResourceSpeed = 1;
        public float ResourceLoadSpeed

public void GoTo(float X, float Y)
public void Stop()
public void Load(Entity target)
public void UnLoad(Entity target)