public abstract class Controller
    {
        public event EventHandler LeftBegin;

        public event EventHandler LeftEnd;

        public event EventHandler RightBegin;

        public event EventHandler RightEnd;

        public event EventHandler UpBegin;

        public event EventHandler UpEnd;

        public event EventHandler DownBegin;

        public event EventHandler DownEnd;

        public event EventHandler JumpBegin;

        public event EventHandler JumpEnd;

        protected void OnLeftBegin(EventArgs e)
        {
            if (this.LeftBegin != null)
                this.LeftBegin(this, e);
        }

        protected void OnLeftEnd(EventArgs e)
        {
            if (this.LeftEnd != null)
                this.LeftEnd(this, e);
        }

        protected void OnRightBegin(EventArgs e)
        {
            if (this.RightBegin != null)
                this.RightBegin(this, e);
        }

        protected void OnRightEnd(EventArgs e)
        {
            if (this.RightEnd != null)
                this.RightEnd(this, e);
        }

        protected void OnUpBegin(EventArgs e)
        {
            if (this.UpBegin != null)
                this.UpBegin(this, e);
        }

        protected void OnUpEnd(EventArgs e)
        {
            if (this.UpEnd != null)
                this.UpEnd(this, e);
        }

        protected void OnDownBegin(EventArgs e)
        {
            if (this.DownBegin != null)
                this.DownBegin(this, e);
        }

        protected void OnDownEnd(EventArgs e)
        {
            if (this.DownEnd != null)
                this.DownEnd(this, e);
        }

        protected void OnJumpBegin(EventArgs e)
        {
            if (this.JumpBegin != null)
                this.JumpBegin(this, e);
        }

        protected void OnJumpEnd(EventArgs e)
        {
            if (this.JumpEnd != null)
                this.JumpEnd(this, e);
        }

        public abstract void Update(Single deltaTime);
    }