How can I control the framerate / How does the loop loops?

[abakoboParticipant]

The FPS property is not assignable…

how can I control the framerate. Is it just waiting for VerticalBlank and dependent to my screen refresh rate?

I don’t really get the whole event loop of the AppInstannce/Window classes. Is there a link with a full explanation (more than the summary of the docs)?
I remember I read some things about fixed framerate and other things like that. I’ve also seen examples with the OnUpdate method in MX2 but can’t find it in the docs. What has really changed and how?
Is even there some eventloop if ‘App.RequestRender’ is not called?

[PakzParticipant]

<pre class=”lang:monkey decode:true ” title=”Framerate”>#Import “<std>”
#Import “<mojo>”

Using std..
Using mojo..

Global instance:AppInstance

Class MyWindow Extends Window

Field timer:Timer

Method New()
timer = New Timer(10,OnUpdate)
End Method

Method OnUpdate()
If Keyboard.KeyReleased(Key.Escape) Then instance.Terminate()
App.RequestRender()
End Method

Method OnRender( canvas:Canvas ) Override
canvas.DrawText(“FPS:”+App.FPS,0,0)
End Method

End Class

Function Main()
instance = New AppInstance

New MyWindow

App.Run()

End Function
This I used to change the framerate. Using a timer.

[PakzParticipant]

The code insertion seems not to work? No idea what is happening.

[Mark SiblyKeymaster]

Sorry about that – more wordpress weirdness, should be fixed now.

[abakoboParticipant]

Ok so OnUpdate (not documented yet) is a must in some situations…? May be I should wait for more complete docs before trying to understand the whole appInstance/window process.

[Matthew SmithParticipant]

@abakobo
No you don’t need to separate out your update (you can certainly as the above example shows). Put everything into the OnRender as follows:

Monkey

Method OnRender(canvas:Canvas) Override 'Update MyObjects.Update() 'other things you wish to update 'Render App.RequestRender() MyObjects.Render(canvas) 'other things you wish to render 'ie. score End

1 2 3 4 5 6 7 8 9 10 11 12

Method OnRender(canvas:Canvas) Override    'Update    MyObjects.Update()    'other things you wish to update    'Render    App.RequestRender()    MyObjects.Render(canvas)    'other things you wish to render    'ie. score End

This way the system handles everything – most of the available samples follow this example. You can create the OnUpdate timer if you want to update more regularly or at a specific rate.

That did catch me out initially trying to work through what was what.

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