BizHawk/BizHawk.Emulation/Interfaces/Base Implementations/NullController.cs

namespace BizHawk
{
    public class NullController : IController
    {
        public ControllerDefinition Type { get { return null; } }
        public bool this[string button] { get { return false; } }
        public bool IsPressed(string button) { return false; }
        public float GetFloat(string name) { return 0f; }
        public void UpdateControls(int frame) { }
        public void UnpressButton(string button) { }
        public void ForceButton(string button) { }

        public void SetSticky(string button, bool sticky) { }
        public bool IsSticky(string button) { return false; }

        private static NullController nullController = new NullController();
        public static NullController GetNullController() { return nullController;  }
    }
}