Any Silverlight-based Thumbstick controls out there?

I'm trying to implement a simple game - I've written a dial control but having trouble writing a on-screen thumbstick in Silverlight for Windows Phone - this would be a large circle - say 15开发者_如何学编程0px wide with a 25px circle which when held down moves round the centre much like a real thumbstick - like the Xbox 360 controller thumbsticks.

I'm finding creating this a little tricky - if there are any examples such as a Joystick one I can shrink down for example? Been trying to create something for ages and can't seem to figure it out - the centre circle is loaded from an Image and the Larger one too so it can be customised - getting the two to be within each other centred is the easy part!

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As discussed, i'd suggest using XNA doing it since its considerably easier to do. With Mango you could combine XNA and Silverlight and therefore satisfy your needs for some Silverlight too.

Look at this example: http://create.msdn.com/en-US/sample/touchthumbsticks

It shows how to easily create a thumbstick control. To restrict the area which you can touch, just create a new Rectangle at the position of the thumbstick with the size you desire and use the .Contains(...) overload to check if the position of the tap is inside it and then act accordingly (update the stick, or ignore input).

Check out the .Contains(...) function and its overloads: http://msdn.microsoft.com/de-de/library/microsoft.xna.framework.rectangle.contains.aspx

I have learned that many programmers tend to stick to Silverlight for they think XNA is some kind of holy grail and is complex to program. It is not. It just needs a bit of getting used to, but you will surely enjoy the ride to XNA enlightment. I can tell, i did :) It's fun! Just trust a stranger on the internet!

If you need to stick to Silverlight and Pre-Mango, i fear i can offer nothing of value for you, and i fear you will suffer pain in trying to recreate the same functionality XNA already offers programmers for no charge.