public override void Initialize()
{
Input.AddButtonControl("left")
.Keyboard(Keys.A, Keys.Left);
Input.AddButtonControl("right")
.Keyboard(Keys.D, Keys.Right);
Input.AddButtonControl("up")
.Keyboard(Keys.W, Keys.Up);
Input.AddButtonControl("down")
.Keyboard(Keys.S, Keys.Down);
Input.AddButtonControl("continue")
.Keyboard(Keys.Space, Keys.Enter);
State.Start <GameplayState>();
}