public void Update()
{
//start the timer to measure the frame rendering time
timer.Start();
//get the system events(suspend, shut down etc)
SystemEvents.CheckEvents();
//set up GL instance
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.SetBlendMode(Sce.PlayStation.HighLevel.GameEngine2D.Base.BlendMode.Normal);
//update the Director
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.Update();
//set the additional framebuffer to render to
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.Context.SetFrameBuffer(offscreenBuffer);
//set the viewport to the size of the offscreen framebuffer
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.Context.SetViewport(0, 0, 960, 544);
//render the scene to the framebuffer
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.CurrentScene.render();
//switch to the default framebuffer again
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.Context.SetFrameBuffer(null);
//set the viewport to the size of the device again
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.Context.SetViewport(0, 0, GraphicsContext.ScreenSizes [0].Width, GraphicsContext.ScreenSizes [0].Height);
//draw the offscreen framebuffer on the actual screen
offscreenSprite.Draw();
//render UI
//UISystem.Update(Touch.GetData(0));
//UISystem.Render();
//DEBUG
//offscreenSprite.DebugDrawContentLocalBounds();
//stop the timer,calculate the time per frame
timer.Stop();
long ms = timer.ElapsedMilliseconds;
//sleep to limit the FPS to 30
if (ms < 33)
{
Thread.Sleep((int)(33 - ms));
ms += (33 - ms);
}
//calculate the number of FPS and send to console
int fps = (int)(1000 / ms);
//System.Console.WriteLine ("fps: {0}", fps);
//System.Console.WriteLine ("Memory in use in KBytes: " + System.GC.GetTotalMemory (true) / 1024);
//if (Game.Instance != null && Game.Instance.ammoList != null)
// System.Console.WriteLine ("Number of enemies in the list: {0} ", Game.Instance.bulletList.Count);
//reset the timer again
timer.Reset();
//swap the buffers and cleanup afterwards
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.GL.Context.SwapBuffers();
Sce.PlayStation.HighLevel.GameEngine2D.Director.Instance.PostSwap();
}