MyGame.fs

module MyGame

open Microsoft.Xna.Framework
open Microsoft.Xna.Framework.Graphics

type MyGame () as this =
    inherit Game()
    let graphics = new GraphicsDeviceManager(this)
    let mutable spriteBatch: SpriteBatch = null
    override this.Initialize() =
        spriteBatch <- new SpriteBatch(this.GraphicsDevice)
        base.Initialize()
    override this.LoadContent() = 
        ()
    override this.Update delta =
        ()
    override this.Draw delta =
        Color.CornflowerBlue 
        |> this.GraphicsDevice.Clear
        spriteBatch.Begin()
        //render here
        spriteBatch.End()